1910012381 T2600G CLI

2018-03-27

: Tp-Link 1910012381 T2600G Cli 1910012381_T2600G_CLI 20180327 201803 2018

Open the PDF directly: View PDF PDF.
Page Count: 626

Download1910012381 T2600G CLI
Open PDF In BrowserView PDF
CLI Reference Guide
T2600G Series Switches

T2600G-18TS (TL-SG3216) / T2600G-28TS (TL-SG3424)

T2600G-52TS (TL-SG3452) / T2600G-28MPS (TL-SG3424P)
1910012381 REV2.2.2
March 2018

COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice.

is a registered trademark of

TP-Link Technologies Co., Ltd. Other brands and product names are trademarks or registered

trademarks of their respective holders.

No part of the specifications may be reproduced in any form or by any means or used to make
any derivative such as translation, transformation, or adaptation without permission from

TP-Link Technologies Co., Ltd. Copyright © 2018 TP-Link Technologies Co., Ltd. All rights

reserved.

https://www.tp-link.com

I

CONTENTS
Preface

............................................................................................................................ 1

Chapter 1

Using the CLI ................................................................................................... 7

1.1 Accessing the CLI ..................................................................................................................................... 7
1.1.1

Logon by a console port...................................................................................................... 7

1.1.3

Logon by SSH........................................................................................................................ 13

1.1.2

Logon by Telnet...................................................................................................................... 9

1.2 CLI Command Modes ............................................................................................................................ 21

1.3 Privilege Restrictions ............................................................................................................................. 24
1.4 Conventions.............................................................................................................................................. 24
1.4.1

1.4.2

1.4.3

Chapter 2

Format Conventions ........................................................................................................... 24

Special Characters .............................................................................................................. 24

Parameter Format ................................................................................................................ 25

User Interface .............................................................................................. 26

2.1

enable ............................................................................................................................................... 26

2.3

enable password........................................................................................................................... 27

2.5

configure.......................................................................................................................................... 30

2.2

2.4

service password-encryption .................................................................................................. 26

enable secret ................................................................................................................................. 28

2.6

exit...................................................................................................................................................... 30

2.8

clipaging........................................................................................................................................... 31

2.10

history clear .................................................................................................................................... 33

2.7
2.9

Chapter 3

end ..................................................................................................................................................... 31

history ............................................................................................................................................... 32

IEEE 802.1Q VLAN Commands ................................................................ 34

3.1

vlan..................................................................................................................................................... 34

3.3

name.................................................................................................................................................. 35

3.5

switchport access vlan ............................................................................................................... 37

3.2
3.4
3.6

3.7

3.8

interface vlan .................................................................................................................................. 35

switchport mode ........................................................................................................................... 36

switchport trunk allowed vlan ................................................................................................... 38

switchport trunk allowed vlan all ............................................................................................. 39
switchport general allowed vlan .............................................................................................. 39
II

3.9

switchport pvid .............................................................................................................................. 40

3.10

show vlan summary...................................................................................................................... 41

3.12

show vlan ......................................................................................................................................... 42

3.11

3.13

Chapter 4

show vlan brief ............................................................................................................................... 42

show interface switchport ......................................................................................................... 43

MAC-based VLAN Commands ................................................................. 44

4.1

mac-vlan mac-address ............................................................................................................... 44

4.3

show mac-vlan ............................................................................................................................... 46

4.2

4.4

Chapter 5

mac-vlan .......................................................................................................................................... 45

show mac-vlan interface ............................................................................................................ 46

Protocol-based VLAN Commands ......................................................... 48

5.1

protocol-vlan template (For T2600G-18TS only) .............................................................. 48

5.3

protocol-vlan vlan ......................................................................................................................... 50

5.2

5.4

5.5

5.6

Chapter 6

protocol-vlan template (For other switches) ....................................................................... 49

protocol-vlan group ..................................................................................................................... 51

show protocol-vlan template.................................................................................................... 52

show protocol-vlan vlan ............................................................................................................. 52

VLAN-VPN Commands .............................................................................. 54

6.1

dot1q-tunnel................................................................................................................................... 54

6.3

dot1q-tunnel mapping ................................................................................................................ 55

6.2

6.4

6.5
6.6

dot1q-tunnel tpid .......................................................................................................................... 55
switchport dot1q-tunnel missdrop......................................................................................... 56
switchport dot1q-tunnel mapping .......................................................................................... 57

switchport dot1q-tunnel mode ................................................................................................ 58

6.7

show dot1q-tunnel ....................................................................................................................... 59

6.9

show dot1q-tunnel interface .................................................................................................... 60

6.8

Chapter 7

show dot1q-tunnel mapping..................................................................................................... 59

Private VLAN Commands ......................................................................... 61

7.1

private-vlan primary ..................................................................................................................... 61

7.3

private-vlan isolated .................................................................................................................... 62

7.2
7.4
7.5

7.6

7.7

private-vlan community .............................................................................................................. 62
private-vlan association ............................................................................................................. 63

switchport private-vlan ............................................................................................................... 64
switchport private-vlan host-association ............................................................................ 65

switchport private-vlan mapping ............................................................................................ 66
III

7.8

7.9

Chapter 8
8.1

show vlan private-vlan ................................................................................................................ 67

show vlan private-vlan interface.............................................................................................. 67

L2PT Commands ......................................................................................... 69
l2protocol-tunnel .......................................................................................................................... 69

8.2

l2protocol-tunnel type ................................................................................................................ 70

8.4

show l2protocol-tunnel interface............................................................................................ 72

8.3

Chapter 9

show l2protocol-tunnel global ................................................................................................. 71

GVRP Commands ........................................................................................ 74

9.1

gvrp.................................................................................................................................................... 74

9.3

gvrp registration............................................................................................................................ 75

9.2

9.4

9.5

9.6

gvrp (interface)............................................................................................................................... 75

gvrp timer ........................................................................................................................................ 76

show gvrp interface ..................................................................................................................... 77

show gvrp global ........................................................................................................................... 78

Chapter 10 Voice VLAN Commands ............................................................................ 80
10.1

voice vlan ......................................................................................................................................... 80

10.3

voice vlan priority.......................................................................................................................... 81

10.2

10.4

10.5

10.6

10.7

10.8

10.9

voice vlan aging ............................................................................................................................. 81

voice vlan mac-address ............................................................................................................. 82

switchport voice vlan mode ...................................................................................................... 83

switchport voice vlan security ................................................................................................. 84

show voice vlan ............................................................................................................................. 85

show voice vlan oui ...................................................................................................................... 85

show voice vlan switchport ....................................................................................................... 86

Chapter 11 Etherchannel Commands ......................................................................... 87
11.1

channel-group ............................................................................................................................... 87

11.3

lacp system-priority ..................................................................................................................... 89

11.2

11.4

port-channel load-balance ........................................................................................................ 88

lacp port-priority ........................................................................................................................... 90

11.5

show etherchannel ....................................................................................................................... 91

11.7

show lacp ......................................................................................................................................... 92

11.6

11.8

show etherchannel load-balance ............................................................................................ 92
show lacp sys-id............................................................................................................................ 93

IV

Chapter 12 User Management Commands ................................................................ 94
12.1

user name (password) ................................................................................................................. 94

12.3

service password-recovery ...................................................................................................... 97

12.5

user access-control mac-based ............................................................................................. 99

12.7

line ................................................................................................................................................... 101

12.2
12.4
12.6

12.8
12.9

12.10

12.11

12.12

12.13

12.14

12.15
12.16

12.17

user name (secret)........................................................................................................................ 95

user access-control ip-based .................................................................................................. 98

user access-control port-based .......................................................................................... 100

password ...................................................................................................................................... 102

login ................................................................................................................................................ 103

login local...................................................................................................................................... 104
media-type rj45 .......................................................................................................................... 105

telnet .............................................................................................................................................. 106

serial_port baud-rate ................................................................................................................ 106
show password-recovery ....................................................................................................... 107

show user account-list............................................................................................................. 108
show user configuration.......................................................................................................... 108
show telnet-status..................................................................................................................... 109

Chapter 13 HTTP and HTTPS Commands ................................................................ 110
13.1

13.2

13.3

ip http server ............................................................................................................................... 110

ip http max-users (For T2600G-18TS only) ...................................................................... 111

ip http max-users (For other switches) .............................................................................. 112

13.4

ip http session timeout ............................................................................................................ 113

13.6

ip http secure-protocol............................................................................................................ 114

13.8

ip http secure-max-users ....................................................................................................... 116

13.5
13.7

ip http secure-server ................................................................................................................ 113
ip http secure-ciphersuite ...................................................................................................... 115

13.9

ip http secure-session timeout ............................................................................................. 117

13.11

ip http secure-server download key ................................................................................... 118

13.10

13.12

13.13

ip http secure-server download certificate ...................................................................... 117
show ip http configuration ...................................................................................................... 119
show ip http secure-server .................................................................................................... 120

Chapter 14 ARP Commands ......................................................................................... 121
14.1

arp ................................................................................................................................................... 121

14.3

arp timeout ................................................................................................................................... 122

14.2

clear arp-cache .......................................................................................................................... 122

V

14.4

show arp........................................................................................................................................ 123

14.6

show ip arp summary................................................................................................................ 124

14.5

show ip arp (interface) .............................................................................................................. 124

Chapter 15 Binding Table Commands ....................................................................... 126
15.1

ip source binding ....................................................................................................................... 126

15.3

ip dhcp snooping vlan .............................................................................................................. 128

15.2
15.4

15.5

ip dhcp snooping ....................................................................................................................... 127
ip dhcp snooping information option.................................................................................. 129

ip dhcp snooping information strategy .............................................................................. 130

15.6

ip dhcp snooping information format ................................................................................. 131

15.8

ip dhcp snooping information circuit-id............................................................................. 132

15.7

ip dhcp snooping information remote-id........................................................................... 133

15.9

ip dhcp snooping trust ............................................................................................................. 134

15.11

ip dhcp snooping limit rate ..................................................................................................... 136

15.10

15.12

15.13

15.14

15.15

15.16

15.17

ip dhcp snooping mac-verify ................................................................................................. 135
ip dhcp snooping decline rate ............................................................................................... 136

ip dhcp snooping max-entries .............................................................................................. 137
show ip source binding ............................................................................................................ 138

show ip dhcp snooping ............................................................................................................ 139

show ip dhcp snooping interface ......................................................................................... 139

show ip dhcp snooping information interface ................................................................. 140

Chapter 16 IPv6 Binding Table Commands.............................................................. 142
16.1

ipv6 source binding................................................................................................................... 142

16.3

ipv6 dhcp snooping vlan ......................................................................................................... 144

16.2

16.4

16.5

ipv6 dhcp snooping .................................................................................................................. 143

ipv6 dhcp snooping trust ........................................................................................................ 145

ipv6 nd snooping ....................................................................................................................... 146

16.6

ipv6 nd snooping vlan .............................................................................................................. 146

16.8

show ipv6 source binding ....................................................................................................... 148

16.10

show ipv6 dhcp snooping interface .................................................................................... 149

16.7
16.9

16.11

16.12

ipv6 nd snooping max-entries............................................................................................... 147

show ipv6 dhcp snooping ....................................................................................................... 149

show ipv6 nd snooping ............................................................................................................ 150
show ipv6 nd snooping interface ......................................................................................... 151

VI

Chapter 17 IP Verify Source Commands .................................................................. 152
17.1

ip verify source ........................................................................................................................... 152

17.3

show ip verify source interface ............................................................................................. 153

17.2

show ip verify source................................................................................................................ 153

Chapter 18 IPv6 Verify Source Commands ............................................................. 155
18.1

ipv6 verify source ...................................................................................................................... 155

18.3

show ipv6 verify source interface ........................................................................................ 156

18.2

show ipv6 verify source ........................................................................................................... 156

Chapter 19 ND Detection Commands ....................................................................... 158
19.1

ipv6 nd detection ....................................................................................................................... 158

19.3

ipv6 nd detection trust............................................................................................................. 159

19.2

19.4

19.5

ipv6 nd detection vlan .............................................................................................................. 158

show ipv6 nd detection ........................................................................................................... 160
show ipv6 nd detection interface......................................................................................... 160

Chapter 20 ARP Inspection Commands .................................................................... 162
20.1

ip arp inspection(global) .......................................................................................................... 162

20.3

ip arp inspection(interface)..................................................................................................... 163

20.5

ip arp inspection recover ........................................................................................................ 165

20.2

20.4

ip arp inspection trust .............................................................................................................. 162

ip arp inspection limit-rate ...................................................................................................... 164

20.6

show ip arp inspection ............................................................................................................. 166

20.8

show ip arp inspection statistics .......................................................................................... 167

20.7
20.9

show ip arp inspection interface .......................................................................................... 166

clear ip arp inspection statistics........................................................................................... 168

Chapter 21 DoS Defend Commands .......................................................................... 169
21.1

ip dos-prevent ............................................................................................................................ 169

21.3

show ip dos-prevent ................................................................................................................. 171

21.2

ip dos-prevent type................................................................................................................... 170

Chapter 22 IEEE 802.1X Commands .......................................................................... 172
22.1

dot1x system-auth-control .................................................................................................... 172

22.3

dot1x auth-method ................................................................................................................... 173

22.5

dot1x vlan-assignment ............................................................................................................ 175

22.2
22.4

dot1x handshake ....................................................................................................................... 173

dot1x accounting ....................................................................................................................... 175

VII

22.6

dot1x guest-vlan(global).......................................................................................................... 176

22.8

dot1x timeout supplicant-timeout ....................................................................................... 178

22.7

22.9

22.10

22.11
22.12

22.13

22.14

22.15

22.16

dot1x quiet-period..................................................................................................................... 177

dot1x max-reauth-req .............................................................................................................. 179

dot1x .............................................................................................................................................. 180
dot1x guest-vlan(interface) .................................................................................................... 180

dot1x mab .................................................................................................................................... 181

dot1x port-control ..................................................................................................................... 182

dot1x port-method.................................................................................................................... 183

show dot1x global ..................................................................................................................... 184

show dot1x interface ................................................................................................................ 185

Chapter 23 PPPoE ID-Insertion Commands ............................................................ 186
23.1

pppoe id-insertion(global)....................................................................................................... 186

23.2

pppoe circuit-id(interface) ...................................................................................................... 187

23.4

pppoe remote-id ........................................................................................................................ 188

23.3

23.5
23.6

pppoe circuit-id type ................................................................................................................ 187
show pppoe id-insertion global ............................................................................................ 189

show pppoe id-insertion interface....................................................................................... 190

Chapter 24 System Log Commands .......................................................................... 192
24.1

24.2

logging buffer .............................................................................................................................. 192

logging buffer level.................................................................................................................... 193

24.3

logging file flash ......................................................................................................................... 193

24.5

logging file flash level ............................................................................................................... 195

24.4

24.6

logging file flash frequency .................................................................................................... 194
logging host index ..................................................................................................................... 196

24.7

logging console .......................................................................................................................... 197

24.9

logging monitor .......................................................................................................................... 198

24.8

24.10

24.11

24.12

24.13

24.14

24.15

logging console level................................................................................................................ 197
logging monitor level ................................................................................................................ 199

clear logging ................................................................................................................................ 200

show logging local-config....................................................................................................... 201
show logging loghost ............................................................................................................... 201

show logging buffer .................................................................................................................. 202
show logging flash..................................................................................................................... 203

VIII

Chapter 25 SSH Commands ......................................................................................... 204
25.1

ip ssh server ................................................................................................................................ 204

25.3

ip ssh algorithm .......................................................................................................................... 205

25.5

ip ssh max-client ........................................................................................................................ 207

25.7

remove public-key..................................................................................................................... 208

25.2

25.4
25.6
25.8

ip ssh version .............................................................................................................................. 204

ip ssh timeout .............................................................................................................................. 206

ip ssh download.......................................................................................................................... 207

show ip ssh................................................................................................................................... 209

Chapter 26 MAC Address Commands ....................................................................... 210
26.1

mac address-table static ........................................................................................................ 210

26.2

mac address-table aging-time .............................................................................................. 211

26.4

mac address-table notification ............................................................................................. 213

26.3

mac address-table filtering .................................................................................................... 212

26.5

mac address-table max-mac-count ................................................................................... 214

26.7

mac address-table security ................................................................................................... 217

26.6

26.8

mac address-table notification (interface)........................................................................ 215
show mac address-table......................................................................................................... 218

26.9

clear mac address-table ......................................................................................................... 218

26.11

show mac address-table max-mac-count ........................................................................ 220

26.10
26.12
26.13

26.14
26.15

26.16

26.17

show mac address-table aging-time .................................................................................. 219

show mac address-table interface ...................................................................................... 220

show mac address-table count ............................................................................................ 221
show mac address-table address ....................................................................................... 222
show mac address-table vlan................................................................................................ 223

show mac address-table notification ................................................................................. 223
show mac address-table security........................................................................................ 224

Chapter 27 System Configuration Commands ....................................................... 225
27.1

system-time manual ................................................................................................................. 225

27.3

system-time dst predefined .................................................................................................. 228

27.2

27.4
27.5
27.6

27.7

27.8

system-time ntp ......................................................................................................................... 225

system-time dst date ............................................................................................................... 229
system-time dst recurring ...................................................................................................... 230

hostname...................................................................................................................................... 231

location.......................................................................................................................................... 232
contact-info ................................................................................................................................. 233
IX

27.9

ip address ..................................................................................................................................... 234

27.11

reset ............................................................................................................................................... 236

27.10
27.12
27.13

27.14

27.15

27.16

27.17
27.18
27.19

27.20

27.21
27.22

ip address-alloc .......................................................................................................................... 235

reboot ............................................................................................................................................ 236

reboot-schedule ........................................................................................................................ 237

copy running-config startup-config.................................................................................... 238

copy startup-config tftp .......................................................................................................... 239

copy tftp startup-config .......................................................................................................... 240
boot application ......................................................................................................................... 241
remove backup-image ............................................................................................................. 241
firmware upgrade....................................................................................................................... 242

boot autoinstall start................................................................................................................. 243
boot autoinstall persistent-mode ........................................................................................ 244
boot autoinstall auto-save ...................................................................................................... 245

27.23

boot autoinstall auto-reboot.................................................................................................. 245

27.25

show boot autoinstall ............................................................................................................... 247

27.24
27.26

27.27

27.28

27.29
27.30
27.31
27.32

27.33

boot autoinstall retry-count ................................................................................................... 246

show boot autoinstall downloaded-config ....................................................................... 247

ping ................................................................................................................................................. 248

tracert ............................................................................................................................................ 249
show system-info ...................................................................................................................... 250
show system-info interface ................................................................................................... 251
show image-info......................................................................................................................... 252

show boot ..................................................................................................................................... 252

show running-config................................................................................................................. 253

27.34

show running-config | ............................................................................................................... 253

27.36

show system-time ..................................................................................................................... 255

27.35

27.37
27.38

27.39

27.40
27.41

27.42

show startup-config ................................................................................................................. 254

show system-time dst.............................................................................................................. 255

show system-time ntp ............................................................................................................. 256

show cable-diagnostics interface gigabitEthernet........................................................ 257
show cable-diagnostics careful interface ......................................................................... 257
show cpu-utilization .................................................................................................................. 258

show memory-utilization ......................................................................................................... 259

Chapter 28 IPv6 Address Configuration Commands ............................................ 260
28.1

28.2

ipv6 enable ................................................................................................................................... 260

ipv6 address autoconfig.......................................................................................................... 261
X

28.3

ipv6 address link-local ............................................................................................................. 261

28.5

ipv6 address ra ........................................................................................................................... 263

28.4

28.6

28.7

28.8

ipv6 address dhcp ..................................................................................................................... 262

ipv6 address eui-64 .................................................................................................................. 264

ipv6 address ................................................................................................................................ 265

show ipv6 interface ................................................................................................................... 265

Chapter 29 Ethernet Configuration Commands ..................................................... 267
29.1

interface gigabitEthernet ........................................................................................................ 267

29.3

description ................................................................................................................................... 269

29.2
29.4

29.5

29.6

interface range gigabitEthernet............................................................................................ 268

shutdown ...................................................................................................................................... 269

flow-control ................................................................................................................................. 270
duplex ............................................................................................................................................ 271

29.7

jumbo ............................................................................................................................................. 272

29.9

speed ............................................................................................................................................. 273

29.8
29.10

29.11

29.12

29.13
29.14

29.15
29.16

29.17
29.18

29.19

jumbo-size .................................................................................................................................... 272
downspeed enable .................................................................................................................... 274

storm-control pps ..................................................................................................................... 275
storm-control .............................................................................................................................. 276

bandwidth ..................................................................................................................................... 277
clear counters ............................................................................................................................. 278
show interface status ............................................................................................................... 278

show interface counters ......................................................................................................... 279
show interface configuration................................................................................................. 280

show storm-control .................................................................................................................. 281

show bandwidth ......................................................................................................................... 281

Chapter 30 QoS Commands......................................................................................... 283
30.1

30.2

qos (For T2600G-18TS only) ................................................................................................. 283

qos (For T2600G-52TS only) ................................................................................................. 284

30.3

qos port-priority ......................................................................................................................... 285

30.5

qos cos .......................................................................................................................................... 287

30.4

30.6
30.7

30.8

30.9

qos trust mode ........................................................................................................................... 286

qos dscp ....................................................................................................................................... 287

qos queue cos-map .................................................................................................................. 288

qos cos-map ............................................................................................................................... 290
qos dot1p-remap ....................................................................................................................... 291
XI

30.10

30.11

qos queue dscp-map (For T2600G-18TS only)............................................................... 292

qos queue dscp-map (For T2600G-52TS only)............................................................... 293

30.12

qos dscp-map ............................................................................................................................. 294

30.14

qos queue mode ........................................................................................................................ 296

30.13
30.15

30.16

30.17

30.18
30.19

30.20

30.21

30.22

30.23

30.24

30.25

qos dscp-remap ......................................................................................................................... 295

qos queue weight ...................................................................................................................... 298

show qos interface .................................................................................................................... 299

show qos cos-map .................................................................................................................... 300
show qos dot1p-remap interface ........................................................................................ 301

show qos dscp-map ................................................................................................................. 301

show qos dscp-map interface .............................................................................................. 302

show qos dscp-remap interface .......................................................................................... 303

show qos port-priority interface........................................................................................... 304
show qos trust-mode interface ............................................................................................ 304

show qos queue mode............................................................................................................. 305

show qos status ......................................................................................................................... 306

Chapter 31 Port Mirror Commands ............................................................................ 307
31.1

monitor session destination interface................................................................................ 307

31.3

show monitor session .............................................................................................................. 309

31.2

monitor session source interface ........................................................................................ 308

Chapter 32 Port Isolation Commands ....................................................................... 311
32.1

32.2

port isolation................................................................................................................................ 311
show port isolation interface ................................................................................................. 312

Chapter 33 Loopback Detection Commands .......................................................... 314
33.1

loopback-detection (global) ................................................................................................... 314

33.3

loopback-detection recovery-time ..................................................................................... 315

33.2
33.4

loopback-detection interval................................................................................................... 314
loopback-detection (interface) ............................................................................................. 316

33.5

loopback-detection config process-mode ...................................................................... 317

33.7

loopback-detection recover .................................................................................................. 319

33.6

33.8

33.9

loopback-detection config recovery-mode..................................................................... 318

show loopback-detection global.......................................................................................... 319

show loopback-detection interface .................................................................................... 320

Chapter 34 DDM Commands ....................................................................................... 322
34.1

ddm state enable ....................................................................................................................... 322
XII

34.2

ddm shutdown ............................................................................................................................ 323

34.4

ddm voltage_threshold............................................................................................................ 325

34.3
34.5
34.6

34.7
34.8

34.9

ddm temperature_threshold.................................................................................................. 324
ddm bias_current_threshold ................................................................................................. 326

ddm tx_power_threshold ........................................................................................................ 327
ddm rx_power_threshold ........................................................................................................ 328

show ddm configuration.......................................................................................................... 329

show ddm status ........................................................................................................................ 330

Chapter 35 ACL Commands ......................................................................................... 332
35.1

time-range .................................................................................................................................... 332

35.3

periodic ......................................................................................................................................... 334

35.2

absolute ........................................................................................................................................ 333

35.4

holiday ........................................................................................................................................... 335

35.6

access-list create ...................................................................................................................... 336

35.5

35.7
35.8
35.9

35.10

35.11

35.12

35.13

35.14

35.15

35.16

holiday (global) ............................................................................................................................ 335
mac access-list .......................................................................................................................... 337

access-list standard ................................................................................................................. 338
access-list extended ................................................................................................................ 339

access-list combined ............................................................................................................... 341

access-list ipv6 .......................................................................................................................... 343

rule .................................................................................................................................................. 345

access-list policy name ........................................................................................................... 347
access-list policy action.......................................................................................................... 347

redirect interface ....................................................................................................................... 348

s-condition ................................................................................................................................... 349

35.17

s-mirror.......................................................................................................................................... 350

35.19

access-list bind acl (interface) .............................................................................................. 351

35.18

35.20

qos-remark .................................................................................................................................. 350
access-list bind acl (vlan) ........................................................................................................ 352

35.21

access-list bind (interface) ..................................................................................................... 353

35.23

access-list packet-content config ...................................................................................... 355

35.22

access-list packet-content profile ...................................................................................... 354

35.24

access-list bind (vlan) ............................................................................................................... 356

35.26

show access-list status ........................................................................................................... 358

35.25

35.27

35.28

show access-list ........................................................................................................................ 357

show access-list policy ........................................................................................................... 358
show access-list bind............................................................................................................... 359
XIII

Chapter 36 MSTP Commands ...................................................................................... 360
36.1

debug spanning-tree ................................................................................................................ 360

36.3

spanning-tree (interface) ........................................................................................................ 362

36.2

36.4

36.5

spanning-tree (global) .............................................................................................................. 361

spanning-tree common-config............................................................................................. 362

spanning-tree mode ................................................................................................................. 364

36.6

spanning-tree mst configuration ......................................................................................... 365

36.8

name............................................................................................................................................... 367

36.10

spanning-tree mst instance ................................................................................................... 368

36.7
36.9

instance......................................................................................................................................... 366

revision .......................................................................................................................................... 367

36.11

spanning-tree mst ..................................................................................................................... 369

36.13

spanning-tree timer .................................................................................................................. 371

36.12

36.14

36.15

spanning-tree priority .............................................................................................................. 370

spanning-tree hold-count....................................................................................................... 372

spanning-tree max-hops......................................................................................................... 373

36.16

spanning-tree bpdufilter ......................................................................................................... 373

36.18

spanning-tree guard loop ....................................................................................................... 375

36.20

spanning-tree guard tc ............................................................................................................ 377

36.17

36.19

spanning-tree bpduguard....................................................................................................... 374

spanning-tree guard root........................................................................................................ 376

36.21

spanning-tree mcheck............................................................................................................. 377

36.23

show spanning-tree bridge .................................................................................................... 379

36.22

36.24

36.25
36.26

show spanning-tree active ..................................................................................................... 378
show spanning-tree interface ............................................................................................... 379

show spanning-tree interface-security ............................................................................. 380

show spanning-tree mst ......................................................................................................... 381

Chapter 37 Ethernet OAM Commands ...................................................................... 383
37.1

ethernet-oam .............................................................................................................................. 383

37.3

ethernet-oam link-monitor symbol-period ....................................................................... 384

37.2
37.4
37.5
37.6
37.7

37.8

ethernet-oam mode.................................................................................................................. 384
ethernet-oam link-monitor frame ........................................................................................ 386
ethernet-oam link-monitor frame-period .......................................................................... 387
ethernet-oam link-monitor frame-seconds...................................................................... 388
ethernet-oam remote-failure................................................................................................. 389

ethernet-oam remote-loopback received-remote- loopback................................... 390
XIV

37.9

ethernet-oam remote-loopback .......................................................................................... 391

37.11

clear ethernet-oam event-log ............................................................................................... 393

37.10
37.12
37.13
37.14

37.15

clear ethernet-oam statistics ................................................................................................ 392
show ethernet-oam configuration ....................................................................................... 393
show ethernet-oam event-log .............................................................................................. 394

show ethernet-oam statistics ............................................................................................... 395

show ethernet-oam status ..................................................................................................... 396

Chapter 38 DLDP Commands ...................................................................................... 397
38.1

dldp (global) ................................................................................................................................. 397

38.3

dldp shut-mode .......................................................................................................................... 398

38.2

38.4

dldp interval ................................................................................................................................. 397

dldp reset (global) ...................................................................................................................... 399

38.5

dldp (interface) ............................................................................................................................ 399

38.7

show dldp ..................................................................................................................................... 401

38.6

38.8

dldp reset (interface) ................................................................................................................ 400
show dldp interface................................................................................................................... 401

Chapter 39 IGMP Snooping Commands.................................................................... 403
39.1

ip igmp snooping (global) ........................................................................................................ 403

39.3

ip igmp snooping rtime ............................................................................................................ 404

39.2

ip igmp snooping (interface) .................................................................................................. 404

39.4

ip igmp snooping mtime .......................................................................................................... 405

39.6

ip igmp snooping immediate-leave ..................................................................................... 407

39.5
39.7

ip igmp snooping report-suppression................................................................................ 406
ip igmp snooping drop-unknown ......................................................................................... 407

39.8

ip igmp snooping last-listener query-inteval.................................................................... 408

39.10

ip igmp snooping vlan-config ................................................................................................ 410

39.9

39.11
39.12
39.13

39.14

ip igmp snooping last-listener query-count ..................................................................... 409
ip igmp snooping vlan-config (router-port-forbidden) ................................................. 411
ip igmp snooping multi-vlan-config..................................................................................... 412
ip igmp snooping multi-vlan-config (router-port-forbidden) ...................................... 414

ip igmp snooping multi-vlan-config (source-ip-replace) ............................................. 415

39.15

ip igmp snooping querier vlan ............................................................................................... 416

39.17

ip igmp snooping max-groups .............................................................................................. 418

39.16
39.18

39.19

ip igmp snooping querier vlan (general query) ................................................................ 416
ip igmp snooping authentication .......................................................................................... 419
ip igmp snooping accounting ................................................................................................ 420
XV

39.20

ip igmp profile ............................................................................................................................. 421

39.22

permit ............................................................................................................................................. 422

39.21

deny ................................................................................................................................................ 421

39.23

range .............................................................................................................................................. 423

39.25

clear ip igmp snooping statistics ......................................................................................... 424

39.24

39.26
39.27
39.28
39.29

39.30
39.31
39.32

ip igmp filter ................................................................................................................................. 423
show ip igmp snooping ............................................................................................................ 425
show ip igmp snooping interface ......................................................................................... 425
show ip igmp snooping vlan ................................................................................................... 426

show ip igmp snooping multi-vlan ....................................................................................... 427
show ip igmp snooping groups ............................................................................................. 428
show ip igmp snooping querier ............................................................................................. 429

show ip igmp profile .................................................................................................................. 430

Chapter 40 MLD Snooping Commands ..................................................................... 431
40.1

ipv6 mld snooping (global) ...................................................................................................... 431

40.3

ipv6 mld snooping rtime .......................................................................................................... 432

40.5

ipv6 mld snooping report-suppression ............................................................................. 433

40.2
40.4
40.6

ipv6 mld snooping (interface) ................................................................................................ 431

ipv6 mld snooping mtime ........................................................................................................ 433
ipv6 mld snooping immediate-leave ................................................................................... 434

40.7

ipv6 mld snooping drop-unknown ....................................................................................... 435

40.9

ipv6 mld snooping last-listener query-count ................................................................... 436

40.11

ip mld snooping vlan-config (router-port-forbidden) .................................................... 439

40.8

40.10
40.12

40.13

ipv6 mld snooping last-listener query-inteval ................................................................. 435

ipv6 mld snooping vlan-config .............................................................................................. 437
ipv6 mld snooping multi-vlan-config .................................................................................. 440

ipv6 mld snooping multi-vlan-config (router-port-forbidden).................................... 441

40.14

ipv6 mld snooping multi-vlan-config (source-ip-replace) ........................................... 442

40.16

ipv6 mld snooping querier vlan (general query) .............................................................. 444

40.15
40.17

40.18

40.19
40.20

40.21

40.22

40.23

ipv6 mld snooping querier vlan ............................................................................................. 443
ipv6 mld snooping max-groups ............................................................................................ 445

ipv6 mld profile ........................................................................................................................... 446
deny ................................................................................................................................................ 447

permit ............................................................................................................................................. 447

range .............................................................................................................................................. 448

ipv6 mld filter ............................................................................................................................... 449

clear ipv6 mld snooping statistics ....................................................................................... 450
XVI

40.24

show ipv6 mld snooping.......................................................................................................... 450

40.26

show ipv6 mld snooping vlan................................................................................................. 452

40.25

40.27
40.28

40.29

40.30

show ipv6 mld snooping interface ....................................................................................... 451
show ipv6 mld snooping multi-vlan ..................................................................................... 452

show ipv6 mld snooping groups .......................................................................................... 453

show ipv6 mld snooping querier .......................................................................................... 454

show ipv6 mld profile................................................................................................................ 455

Chapter 41 SNMP Commands ..................................................................................... 456
41.1

snmp-server ................................................................................................................................ 456

41.2

snmp-server view ...................................................................................................................... 456

41.4

snmp-server user ...................................................................................................................... 459

41.3

41.5

41.6

snmp-server group ................................................................................................................... 457

snmp-server community ......................................................................................................... 461

snmp-server host ...................................................................................................................... 462

41.7

snmp-server engineID ............................................................................................................. 464

41.9

snmp-server traps link-status ............................................................................................... 466

41.11

snmp-server traps ddm ........................................................................................................... 468

41.8

41.10
41.12

41.13

snmp-server traps snmp......................................................................................................... 465

snmp-server traps ..................................................................................................................... 467

snmp-server traps vlan............................................................................................................ 470

snmp-server traps security dhcp-snoop .......................................................................... 471

41.14

rmon history ................................................................................................................................ 471

41.16

rmon alarm ................................................................................................................................... 474

41.15

41.17

41.18
41.19
41.20
41.21
41.22
41.23
41.24

41.25

41.26

41.27

41.28

rmon event ................................................................................................................................... 473

rmon statistics ............................................................................................................................ 476

show snmp-server..................................................................................................................... 477
show snmp-server view........................................................................................................... 477
show snmp-server group........................................................................................................ 478
show snmp-server user ........................................................................................................... 479
show snmp-server community ............................................................................................. 479
show snmp-server host........................................................................................................... 480

show snmp-server engineID .................................................................................................. 480

show rmon history ..................................................................................................................... 481
show rmon event ....................................................................................................................... 482

show rmon alarm........................................................................................................................ 482

show rmon statistics ................................................................................................................ 483

XVII

Chapter 42 LLDP Commands....................................................................................... 485
42.1

lldp................................................................................................................................................... 485

42.3

lldp hold-multiplier ..................................................................................................................... 486

42.2

42.4

42.5

42.6

42.7

42.8

42.9

42.10

42.11
42.12

42.13

lldp forward_message.............................................................................................................. 485
lldp timer ....................................................................................................................................... 487

lldp receive ................................................................................................................................... 488

lldp transmit ................................................................................................................................. 489

lldp snmp-trap............................................................................................................................. 490

lldp tlv-select ............................................................................................................................... 490
lldp management address ...................................................................................................... 491

lldp med-fast-count .................................................................................................................. 492
lldp med-status........................................................................................................................... 493

lldp med-tlv-select .................................................................................................................... 494
lldp med-location ....................................................................................................................... 495

42.14

show lldp ....................................................................................................................................... 496

42.16

show lldp local-information interface ................................................................................. 497

42.15

42.17

42.18

show lldp interface .................................................................................................................... 496

show lldp neighbor-information interface......................................................................... 498
show lldp traffic interface ....................................................................................................... 498

Chapter 43 sFlow Commands ...................................................................................... 500
43.1

sflow address .............................................................................................................................. 500

43.2

sflow enable ................................................................................................................................. 501

43.4

sflow sampler .............................................................................................................................. 503

43.3

sflow collector collector-ID .................................................................................................... 501

43.5

show sflow global ...................................................................................................................... 504

43.7

show sflow sampler .................................................................................................................. 505

43.6

show sflow collector ................................................................................................................. 504

Chapter 44 Static Routes Commands ....................................................................... 506
44.1

interface vlan ............................................................................................................................... 506

44.3

switchport .................................................................................................................................... 507

44.2

44.4

interface loopback .................................................................................................................... 506
interface range port-channel................................................................................................. 508

44.5

description ................................................................................................................................... 509

44.7

interface port-channel ............................................................................................................. 510

44.6

44.8

shutdown ...................................................................................................................................... 509
ip route .......................................................................................................................................... 511
XVIII

44.9

ipv6 routing .................................................................................................................................. 512

44.11

show interface vlan ................................................................................................................... 513

44.10

44.12
44.13
44.14

44.15

44.16
44.17
44.18
44.19

ipv6 route...................................................................................................................................... 513
show ip interface ........................................................................................................................ 514
show ip interface brief.............................................................................................................. 515

show ip route ............................................................................................................................... 515
show ip route specify ............................................................................................................... 516
show ip route summary ........................................................................................................... 517
show ipv6 interface ................................................................................................................... 518
show ipv6 route .......................................................................................................................... 518

show ipv6 route summary ...................................................................................................... 519

Chapter 45 SDM Template Commands ..................................................................... 520
45.1
45.2

sdm prefer .................................................................................................................................... 520

show sdm prefer ........................................................................................................................ 521

Chapter 46 AAA Commands ........................................................................................ 522
46.1

aaa enable .................................................................................................................................... 522

46.3

show tacacs-server .................................................................................................................. 524

46.2

tacacas-server host.................................................................................................................. 523

46.4

radius-server host ..................................................................................................................... 525

46.6

aaa group ...................................................................................................................................... 527

46.5
46.7

show radius-server ................................................................................................................... 527

server ............................................................................................................................................. 528

46.8

show aaa group .......................................................................................................................... 529

46.10

aaa authentication enable....................................................................................................... 531

46.9

46.11

46.12
46.13

46.14

46.15

46.16

46.17

46.18

46.19

46.20

46.21

aaa authentication login .......................................................................................................... 529

aaa authentication dot1x default.......................................................................................... 532
aaa accounting dot1x default ................................................................................................ 533

show aaa authentication ......................................................................................................... 533

show aaa accounting................................................................................................................ 534

line console .................................................................................................................................. 535

login authentication (console) ............................................................................................... 535

enable authentication (console) ........................................................................................... 536

line telnet ...................................................................................................................................... 537
login authentication (telnet).................................................................................................... 538

line ssh ........................................................................................................................................... 538

login authentication (ssh) ........................................................................................................ 539
XIX

46.22

enable authentication (telnet) ................................................................................................ 540

46.24

ip http login authentication..................................................................................................... 541

46.23
46.25
46.26

enable authentication (ssh) .................................................................................................... 541

ip http enable authentication ................................................................................................. 542
show aaa global .......................................................................................................................... 543

Chapter 47 DHCP Server Commands ........................................................................ 544
47.1

service dhcp server .................................................................................................................. 544

47.3

ip dhcp server extend-option vendor-class-id ............................................................... 545

47.2

ip dhcp server extend-option capwap-ac-ip.................................................................... 544

47.4

ip dhcp server exclude-address........................................................................................... 546

47.6

ip dhcp server ping timeout ................................................................................................... 548

47.5

47.7

47.8

ip dhcp server pool ................................................................................................................... 547
ip dhcp server ping packets................................................................................................... 548
network ......................................................................................................................................... 549

47.9

lease ............................................................................................................................................... 550

47.11

address client-identifier .......................................................................................................... 551

47.10

47.12
47.13

47.14

47.15

47.16
47.17

address hardware-address .................................................................................................... 550

default-gateway ......................................................................................................................... 552

dns-server .................................................................................................................................... 553

netbios-name-server ............................................................................................................... 554

netbios-node-type .................................................................................................................... 555
next-server................................................................................................................................... 555
domain-name .............................................................................................................................. 556

47.18

bootfile .......................................................................................................................................... 557

47.20

show ip dhcp server statistics............................................................................................... 558

47.22

show ip dhcp server pool ........................................................................................................ 559

47.19

47.21

47.23

47.24
47.25
47.26

47.27

show ip dhcp server status .................................................................................................... 558

show ip dhcp server extend-option .................................................................................... 559

show ip dhcp server excluded-address ............................................................................ 560

show ip dhcp server manual-binding .................................................................................. 560
show ip dhcp server binding .................................................................................................. 561
clear ip dhcp server statistics ............................................................................................... 561
clear ip dhcp server binding ................................................................................................... 562

Chapter 48 DHCP Server Filter Commands ............................................................. 563
48.1
48.2

ip dhcp filter (global).................................................................................................................. 563
ip dhcp filter (interface) ............................................................................................................ 563
XX

48.3

ip dhcp filter server permit-entry ......................................................................................... 564

48.4

show ip dhcp filter ..................................................................................................................... 565

48.6

show ip dhcp filter server permit-entry.............................................................................. 566

48.5

show ip dhcp filter interface................................................................................................... 566

Chapter 49 DHCP Relay Commands .......................................................................... 568
49.1

service dhcp relay ..................................................................................................................... 568

49.3

ip helper-address....................................................................................................................... 569

49.2

ip dhcp relay enable .................................................................................................................. 568

49.4

ip dhcp relay information ........................................................................................................ 570

49.6

ip dhcp relay information format .......................................................................................... 572

49.5

49.7

49.8
49.9

49.10
49.11

49.12

49.13

ip dhcp relay information policy ........................................................................................... 571

ip dhcp relay information custom ........................................................................................ 573
ip dhcp relay information circuit-id...................................................................................... 573

ip dhcp relay information remote-id.................................................................................... 574

ip dhcp relay default-interface .............................................................................................. 575
ip dhcp relay vlan ....................................................................................................................... 575

show ip dhcp relay ..................................................................................................................... 576

show ip dhcp relay interface .................................................................................................. 577

Chapter 50 DHCP L2 Relay Commands .................................................................... 578
50.1

ip dhcp l2relay ............................................................................................................................. 578

50.3

ip dhcp l2relay information option ....................................................................................... 579

50.2

50.4

50.5

50.6

ip dhcp l2relay vlan.................................................................................................................... 578
ip dhcp l2relay information strategy ................................................................................... 580

ip dhcp l2relay information format....................................................................................... 581
ip dhcp l2relay information circuit-id .................................................................................. 582

50.7

ip dhcp l2relay information remote-id ................................................................................ 583

50.9

show ip dhcp l2relay interface .............................................................................................. 584

50.8

show ip dhcp l2relay ................................................................................................................. 583

Chapter 51 NetBIOS Filter Commands ...................................................................... 586
51.1

51.2

netbios filter................................................................................................................................. 586

show netbios filter ..................................................................................................................... 587

Chapter 52 PoE Commands ......................................................................................... 588
52.1

power inline consumption (global) ....................................................................................... 588

52.3

power profile ............................................................................................................................... 589

52.2

power inline disconnect-method ......................................................................................... 589

XXI

52.4

power time-range ...................................................................................................................... 591

52.6

absolute ........................................................................................................................................ 593

52.5

52.7
52.8

52.9

52.10
52.11
52.12

52.13

52.14

52.15

52.16

52.17
52.18

52.19

power holiday .............................................................................................................................. 592
periodic ......................................................................................................................................... 594

holiday ........................................................................................................................................... 595

power inline consumption (interface) ................................................................................. 595
power inline priority................................................................................................................... 596
power inline supply.................................................................................................................... 597

power inline profile .................................................................................................................... 598

power inline time-range ........................................................................................................... 599

show power inline ...................................................................................................................... 600
show power inline configuration interface ........................................................................ 600

show power inline information interface ........................................................................... 601
show power profile .................................................................................................................... 601

show power holiday .................................................................................................................. 602
show power time-range........................................................................................................... 603

XXII

Preface
This Guide is intended for network administrator to provide referenced information about CLI
(Command Line Interface). The device mentioned in this Guide stands for T2600G-18TS/
T2600G-28TS/ T2600G-52TS/ T2600G-28MPS JetStream Gigabit L2 Managed Switch without
any explanation. The commands in this guilde apply to these models if not specially noted, and
T2600G-28TS is taken as an example model in the example commands.
Some models featured in this guide may be unavailable in your country or region. For local
sales information, visit https://www.tp-link.com.

Overview of this Guide
Chapter 1: Using the CLI
Provide information about how to use the CLI, CLI Command Modes, Security Levels and some
Conventions.

Chapter 2: User Interface
Provide information about the commands used to switch between five CLI Command Modes.
Chapter 3: IEEE 802.1Q VLAN Commands
Provide information about the commands used for configuring IEEE 802.1Q VLAN.
Chapter 4: MAC-based VLAN Commands
Provide information about the commands used for configuring MAC-based VLAN.
Chapter 5: Protocol VLAN Commands
Provide information about the commands used for configuring Protocol VLAN.
Chapter 6: VLAN-VPN Commands
Provide information about the commands used for configuring VLAN-VPN (Virtual Private

Network) function.

Chapter 7: Private VLAN Commands
Provide information about the commands used for configuring Private VLAN.

1

Chapter 8: L2PT Commands
Provide information about the commands used for configuring L2PT (Layer 2 Portocol
Tunneling).

Chapter 9: GVRP Commands
Provide information about the commands used for configuring GVRP (GARP VLAN registration

protocol).

Chapter 10: Voice VLAN Commands
Provide information about the commands used for configuring Voice VLAN.
Chapter 11: Etherchannel Commands
Provide information about the commands used for configuring LAG (Link Aggregation Group)
and LACP (Link Aggregation Control Protocol).
Chapter 12: User Management Commands
Provide information about the commands used for user management.
Chapter 13: HTTP and HTTPS Commands
Provide information about the commands used for configuring the HTTP and HTTPS logon.
Chapter 14: ARP Commands
Provide information about the commands used for configuring the ARP (Address Resolution
Protocol) functions.

Chapter 15: Binding Table Commands
Provide information about the commands used for binding the IP address, MAC address, VLAN
and the connected Port number of the Host together.
Chapter 16: IPv6 Binding Table Commands
Provide information about the commands used for binding the IPv6 address, MAC address,
VLAN and the connected Port number of the Host together.

2

Chapter 17: IP Verify Source Commands
Provide information about the commands used for guarding the IP Source by filtering the IP
packets based on the IP-MAC Binding entries.
Chapter 18: IPv6 Verify Source Commands
Provide information about the commands used for guarding the IPv6 Source by filtering the IP
packets based on the IP-MAC Binding entries.
Chapter 19: ND Detection Commands
Provide information about the commands used for congifuring ND detection.
Chapter 20: ARP Inspection Commands
Provide information about the commands used for protecting the switch from the ARP
cheating or ARP Attack.

Chapter 21: DoS Defend Command
Provide information about the commands used for DoS defend and detecting the DoS attack.
Chapter 22: IEEE 802.1X Commands
Provide information about the commands used for configuring IEEE 802.1X function.
Chapter 23 PPPoE ID Insertion Commands
Provide information about the commands used for configuring PPPoE ID Insertion.
Chapter 24: System Log Commands
Provide information about the commands used for configuring system log.
Chapter 25: SSH Commands
Provide information about the commands used for configuring and managing SSH (Security

Shell).

Chapter 26: MAC Address Commands
Provide information about the commands used for Address configuration.

3

Chapter 27: System Configuration Commands
Provide information about the commands used for configuring the System information and
System IP, reboot and reset the switch, upgrade the switch system and commands used for
cable test.

Chapter 28: IPv6 Address Configuration Commands
Provide information about the commands used for configuring the System IPv6 addresses.
Chapter 29: Ethernet Configuration Commands
Provide information about the commands used for configuring the Bandwidth Control,
Negotiation Mode, and Storm Control for enthernet ports.
Chapter 30: QoS Commands
Provide information about the commands used for configuring the QoS function.
Chapter 31: Port Mirror Commands
Provide information about the commands used for configuring the Port Mirror function.
Chapter 32: Port Isolation Commands
Provide information about the commands used for configuring Port Isolation function.
Chapter 33: Loopback Detection Commands
Provide information about the commands used for configuring the Loopback Detection
function.

Chapter 34: DDM Commands
Provide information about the commands used for DDM (Digtal Diagnostic Monitoring)
function.

Chapter 35: ACL Commands
Provide information about the commands used for configuring the ACL (Access Control List).
Chapter 36: MSTP Commands
Provide information about the commands used for configuring the MSTP (Multiple Spanning
Tree Protocol).

4

Chapter 37 Ethernet OAM Commands
Provide information about the commands used for configuring the Ethernet OAM (Operation,
Administration, and Maintenance) function.
Chapter 38: DLDP Commands
Provide information about the commands used for configuring the DLDP (Device Link

Detection Protocol).

Chapter 39: IGMP Snooping Commands
Provide information about the commands used for configuring the IGMP Snooping (Internet
Group Management Protocol Snooping).

Chapter 40: MLD Snooping Commands
Provide information about the commands used for configuring the MLD Snooping (Multicast
Listener Discovery Snooping).

Chapter 41: SNMP Commands
Provide information about the commands used for configuring the SNMP (Simple Network
Management Protocol) functions.
Chapter 42: LLDP Commands
Provide information about the commands used for configuring LLDP function.
Chapter 43: sFlow Commands
Provide information about the commands used for configuring the Sampled Flow function.
Chapter 44: Static Routes Commands
Provide information about the commands used for configuring the Static Route function.
Chapter 45: SDM Template Commands
Provide information about the commands used for configuring the SDM templates.
Chapter 46: AAA Commands
Provide information about the commands used for configuring AAA (authentication,
authorization and accounting).

5

Chapter 47: DHCP Server Commands
Provide information about the commands used for configuring the DHCP Server function.
Chapter 48: DHCP Server Filter Commands
Provide information about the commands used for configuring the DHCP Server Filter function.
Chapter 49: DHCP Relay Commands
Provide information about the commands used for configuring the DHCP Relay function.
Chapter 50: DHCP L2 Relay Commands (For T2600G-28TS and T2600G-28MPS only)
Provide information about the commands used for configuring DHCP L2 Relay.
Chapter 51: NetBIOS Filter Commands (For T2600G-28MPS only)
Provide information about the commands used for configuring NetBIOS Filter function.
Chapter 52: PoE Commands (For T2600G-28MPS only)
Provide information about the commands used for configuring PoE function.

6

Chapter 1

Using the CLI

1.1 Accessing the CLI
You can log on to the switch and access the CLI by the following three methods:
1.

Log on to the switch by the console port on the switch.

2.

Log on to the switch remotely by a Telnet connection through an Ethernet port.

3.

Log on to the switch remotely by an SSH connection through an Ethernet port.

1.1.1 Logon by a console port


Console Port

The switch has two console ports: an RJ-45 console port and a Micro-USB console port.

Console output is active on devices connected to both console ports, but console input is only
active on one console port at a time.

The Micro-USB connector takes precedence over the RJ-45 connector. When the switch

detects a valid connection on the Micro-USB console port, input from the RJ-45 console port is

immediately disabled, and input from the Micro-USB console port is enabled. Removing the

Micro-USB connection immediately reenables input from the RJ-45 console connection.


USB Console Driver

If you are using the USB port on the MAC OS X or Linux OS for console connection, there is no

need to run a USB driver.

If you are using the switch’s Micro-USB console port with the USB port of a Windows PC, a

driver for the USB port is required. The USB driver is provided on the resource CD. Follow the
InstallSheild Wizard to accomplish the installation.

The TP-Link USB Console Driver supports the following Windows operating systems:


32-bit Windows XP SP3



64-bit Windows XP



32-bit Windows Vista



64-bit Windows Vista



32-bit Windows 7
7



64-bit Windows 7



32-bit Windows 8



64-bit Windows 8



32-bit Windows 8.1



64-bit Windows 8.1

After the TP-Link USB Console Driver is installed, the PC’s USB port will act as RS-232 serial

port when the PC’s USB port is connected to the switch’s Micro-USB console port. And the

PC’s USB port will act as standard USB port when the PC’s USB port is unplugged from the
switch.


Logon

Take the following steps to log on to the switch by the console port.
1.

Connect the PCs or Terminals to the console port on the switch by the provided cable.

2.

Start the terminal emulation program (such as the HyperTerminal) on the PC.

3.

Specify the connection COM port in the terminal emulation program. If the Micro-USB

Console port is used, you can view which port is assigned to the USB serial port in the
following path:

Control Panel -> Hardware and Sound -> Device Manager -> Ports ->USB Serial Port.

Figure 1-1 USB Serial Port Number
4.

Configure the terminal emulation program or the terminal to use the following settings:


Baud rate: 38400 bps



Data bits: 8
8

5.



Parity: none



Stop bits: 1



Flow control: none

The DOS prompt ”T2600G-28TS>” will appear after pressing the Enter button as shown in

Figure 1-2. It indicates that you can use the CLI now.

Figure 1-2 Log in the Switch

1.1.2 Logon by Telnet
For Telnet connection, you should also configure the Telnet login mode and login
authentication information through console connection.

Telnet login has the following two modes. You can choose one according to your needs:
Login local Mode: It requires username and password, which are both admin by default.
Login Mode: It doesn’t require username and password, but a connection password is
required.

Before Telnet login, you are required to configure Telnet login mode and login authentication
information through console connection.

9



Login Local Mode

Firstly, configure the Telnet login mode as “login local” in the prompted DOS screen shown in

Figure 1-3.

Figure 1-3 Configure login local mode
Now, you can logon by Telnet in login local mode.
1.

Make sure the switch and the PC are in the same LAN. Click Start and type in cmd in the
Search programs and files window and press the Enter button.

Figure 1-4 Run Window
2.

Type telnet 192.168.0.1 in the command prompt shown as Figure 1-5, and press the Enter
button.

10

Figure 1-5 Connecting to the Switch
3.

Type the default user name and password (both of them are admin), then press the Enter

button so as to enter User EXEC Mode.

Figure 1-6 Enter into the User EXEC Mode
4.

Type enable command to enter Privileged EXEC Mode.

Figure 1-7 Enter into the Priviledged EXEC Mode
Now you can manage your switch with CLI commands through Telnet connection.

11



Login Mode

Firstly configure the Telnet login mode as “login” and the connection password as 456 in the
prompted DOS screen shown in Figure 1-8.

Figure 1-8 Configure login mode
Now, you can logon by Telnet in login mode:
1.

Make sure the switch and the PC are in the same LAN. Click Start and type in cmd in the

Search programs and files window and press the Enter button.

Figure 1-9 Run Window
2.

Type telnet 192.168.0.1 in the command prompt shown as Figure 1-10, and press the

Enter button.

12

Figure 1-10 Connecting to the Switch
3.

You are prompted to enter the connection password 456 you have set through Console
port connection, and then you are in User EXEC Mode.

Figure 1-11 Enter into the User EXEC Mode
4.

Type enable command to enter Privileged EXEC Mode.

Figure 1-12 Enter into the Privileged EXEC Mode
Now you can manage your switch with CLI commands through Telnet connection.
Note:

You can refer to Chapter 11 User Management Commands for detailed commands
information of the Telnet connection configuration.

1.1.3 Logon by SSH
To log on by SSH, a Putty client software is recommended. There are two authentication modes
to set up an SSH connection:

Password Authentication Mode: It requires username and password, which are both admin by
default.
Key Authentication Mode: It requires a public key for the switch and a private key for the SSH
client software. You can generate the public key and the private key through Putty Key
Generator.
13

Note:

Before SSH login, follow the steps shown in Figure 1-13 to enable the SSH function through
Telnet connection.

Figure 1-13 Enable SSH function

14



Password Authentication Mode

1.

Open the software to log on to the interface of PuTTY. Enter the IP address of the switch
into Host Name field; keep the default value 22 in the Port field; select SSH as the
Connection type.

Figure 1-14 SSH Connection Config
2.

Click the Open button in the above figure to log on to the switch. Enter the login user name
and password to log on the switch, and then enter enable to enter Privileged EXEC Mode,
so you can continue to configure the switch.

Figure 1-15 Log on the Switch
15



Key Authentication Mode

1.

Select the key type and key length, and generate SSH key.

Figure 1-16 Generate SSH Key

1.
2.

Note:

The key length is in the range of 512 to 3072 bits.

During the key generation, randomly moving the mouse quickly can accelerate the key

generation.

16

2.

After the key is successfully generated, save the public key and private key to a TFTP
server.

Figure 1-17 Save the Generated Key

17

3.

Log on to the switch by Telnet and download the public key file from the TFTP server to the
switch, as the following figure shows:

Figure 1-18 Download the Public Key

1.
2.

Note:

The key type should accord with the type of the key file.
The SSH key downloading can not be interrupted.

18

4.

After the public key is downloaded, log on to the interface of PuTTY and enter the IP
address for login.

Figure 1-19 SSH Connection Config

19

5.

Click Browse to download the private key file to SSH client software and click Open.

Figure 1-20 Download the Private Key
6.

After successful authentication, enter the login user name. If you log on to the switch
without entering password, it indicates that the key has been successfully downloaded.

Figure 1-21 Log on the Switch

20

1.2 CLI Command Modes
The CLI is divided into different command modes: User EXEC Mode, Privileged EXEC Mode,

Global Configuration Mode, Interface Configuration Mode and VLAN Configuration Mode.

Interface Configuration Mode can also be divided into Interface Ethernet, Interface
link-aggregation and some other modes, which is shown as the following diagram.

The following table gives detailed information about the Accessing path, Prompt of each mode
and how to exit the current mode and access the next mode.
Mode

Accessing Path

User EXEC

Primary mode once

Mode

the switch.

it is connected with

Prompt

Logout or Access the next
mode

Use the exit command to
T2600G-28TS>

disconnect the switch.

Use the enable command to

access Privileged EXEC mode.
Enter the disable or the exit

Privileged
EXEC Mode

command to return to User

Use the enable

command to enter

this mode from User

T2600G-28TS#

EXEC mode.

EXEC mode.

Enter configure command to
access Global Configuration

mode.

Use the exit or the end

command or press Ctrl+Z to

return to Privileged EXEC mode.

Global

Configuration
Mode

Use the configure

command to enter
this mode from

Use the interface

T2600G-28TS(config)#

gigabitEthernet port or

interface range

gigabitEthernet port-list

Privileged EXEC

command to access interface

mode.

Configuration mode.

Use the vlan vlan-list to access
VLAN Configuration mode.

21

Mode

Accessing Path

Prompt

Logout or Access the next
mode

Layer 2 Interface:
Use the interface
gigabitEthernet

Interface

Configuration
Mode

port, interface
port-channel

T2600G-28TS (config-if)#

port-channel-id or
interface range

gigabitEthernet

or
T2600G-28TS(config-if-range)#

port-list command to

Use the end command or press
Ctrl+Z to return to Privileged
EXEC mode.
Enter the exit or the # command
to return to Global Configuration
mode.
A port number must be specified
in the interface command.

enter this mode from
Global Configuration

mode.

Layer 3 Interface:
Use the no
switchport
command to enter
Routed Port mode
from Interface
Configuration mode.

Interface

Configuration
Mode

Use the interface
vlan vlan-id
command to enter
VLAN Interface
mode from Global
Configuration mode.

Use the switchport command to
switch to the Layer 2 interface
mode.
T2600G-28TS (config-if)#
or

Use the end command or press
Ctrl+Z to return to Privileged
EXEC mode.

T2600G-28TS(config-if-range)#

Enter the exit or the # command

to return to Global Configuration
mode.

Use the interface
loopback id

command to enter

Loopback Interface
mode from Global

Configuration mode.

22

Mode

Accessing Path

Configuration
Mode

1.
2.

command to enter
this mode from

mode

Use the end command or press

Use the vlan vlan-list

VLAN

Logout or Access the next

Prompt

Ctrl+Z to return to Privileged
T2600G-28TS (config-vlan)#

Global Configuration

EXEC mode.

Enter the exit command or the #
command to return to Global

mode.

configuration mode.

Note:

The user is automatically in User EXEC Mode after the connection between the PC and the

switch is established by a Telnet/SSH connection.

Each command mode has its own set of specific commands. To configure some

commands, you should access the corresponding command mode firstly.


Global Configuration Mode: In this mode, global commands are provided, such as the
Spanning Tree, Schedule Mode and so on.



Interface Configuration Mode: In this mode, users can configure one or several ports,

different ports corresponds to different commands

a). Interface gigabitEthernet: Configure parameters for an Ethernet port, such as
Duplex-mode, flow control status.

b). Interface range gigabitEthernet: Configure parameters for several Ethernet ports.
c). Interface link-aggregation: Configure parameters for a link-aggregation, such as
broadcast storm.

d). Interface range link-aggregation: Configure parameters for multi-trunks.
e). Interface vlan: Configure parameters for the vlan-port.


VLAN Configuration Mode: In this mode, users can create a VLAN and add a specified
port to the VLAN.

3. Some commands are global, that means they can be performed in all modes:


show: Display all information of switch, for example: statistic information, port

information, VLAN information.


history: Display the commands history.
23

1.3 Privilege Restrictions
This switch’s security is divided into four privilege levels: User level, Power User level, Operator
level and Admin level. You can define username and password pairs, and assign a specific
privilege level to each pair. Different privilege levels have access to specified commands,

which is illustrated in the Privilege Requirement in each command. For details about how to
configure usename and password pairs, refer to user name (password) and user name (secret).

Users can enter Privileged EXEC mode from User EXEC mode by using the enable command. In

default case, no password is needed. In Global Configuration Mode, you can configure

password for Admin level by enable password command. Once password is configured, you

are required to enter it to access Privileged EXEC mode.

1.4 Conventions
1.4.1 Format Conventions
The following conventions are used in this Guide:


Items in square brackets [ ] are optional



Items in braces { } are required



Alternative items are grouped in braces and separated by vertical bars. For example:

speed {10 | 100 | 1000 }


Bold indicates an unalterable keyword. For example: show logging



Normal Font indicates a constant (several options are enumerated and only one can be
selected). For example: mode {dynamic | static | permanent}



Italic Font indicates a variable (an actual value must be assigned). For example: bridge
aging-time aging-time

1.4.2

Special Characters

You should pay attentions to the description below if the variable is a character string:


These six characters ” < > , \ & can not be input.

24



If a blank is contained in a character string, single or double quotation marks should be

used, for example ’hello world’, ”hello world”, and the words in the quotation marks will be
identified as a string. Otherwise, the words will be identified as several strings.

1.4.3

Parameter Format

Some parameters must be entered in special formats which are shown as follows:


MAC address must be enter in the format of xx:xx:xx:xx:xx:xx.



One or several values can be typed for a port-list or a vlan-list using comma to separate.

Use a hyphen to designate a range of values, for instance,1/0/1,1/0/3-5,1/0/7 indicates

choosing port 1/0/1,1/0/3,1/0/4,1/0/5,1/0/7.

25

Chapter 2
2.1

User Interface

enable
Description
The enable command is used to access Privileged EXEC Mode from User
EXEC Mode.

Syntax
enable

Command Mode
User EXEC Mode

Privilege Requirement
None.

Example
If you have set the password to access Privileged EXEC Mode from User
EXEC Mode:
T2600G-28TS>enable
Enter password:
T2600G-28TS#

2.2

service password-encryption
Description
The service password-encryption command is used to encrypt the

password when the password is defined or when the configuration is written,
using the symmetric encryption algorithm. Encryption prevents the password

from being readable in the configuration file. To disable the global encryption
function, use no service password-encryption command.

26

Syntax
service password-encryption
no service password-encryption

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the global encryption function:
T2600G-28TS(config)# service password-encryption

2.3

enable password
Description
The enable password command is used to set or change the password for
users to access Privileged EXEC Mode from User EXEC Mode. To remove the
password, use no enable password command. This command uses the
symmetric encryption.

Syntax
enable password { [ 0 ] password | 7 encrypted-password }
no enable password

Parameter
0 —— Specify the encryption type. 0 indicates that an unencrypted password
will follow. By default, the encryption type is 0.

password —— Super password, a string from 1 to 31 alphanumeric

characters or symbols. The password is case sensitive, allows digits, English

letters

(case

sensitive),

underlines

( !$%'()*,-./[]{|} ). By default, it is empty.
27

and

sixteen

special

characters

7 —— Indicates a symmetric encrypted password with fixed length will follow.

encrypted-password —— A symmetric encrypted password with fixed length,
which you can copy from another switch’s configuration file. After the

encrypted password is configured, you should use the corresponding
unencrypted password if you re-enter this mode.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
If the password you configured here is unencrypted and the global
encryption function is enabled in service password-encryption, the

password in the configuration file will be displayed in the symmetric
encrypted form.

Example
Set the super password as “admin” and unencrypted to access Privileged

EXEC Mode from User EXEC Mode:

T2600G-28TS(config)#enable password 0 admin

2.4

enable secret
Description
The enable secret command is used to set a secret password, which is using

an MD5 encryption algorithm, for users to access Privileged EXEC Mode from

User EXEC Mode. To return to the default configuration, use no enable
secret command. This command uses the MD5 encryption.

Syntax
enable secret { [ 0 ] password | 5 encrypted-password }
no enable secret
28

Parameter
0 —— Specify the encryption type. 0 indicates that an unencrypted password
will follow. By default, the encryption type is 0.

password —— Super password, a string from 1 to 31 alphanumeric

characters or symbols. The password is case sensitive, allows digits, English
letters

(case

sensitive),

underlines

and

sixteen

special

characters

( !$%'()*,-./[]{|} ). By default, it is empty. The password in the configuration file
will be displayed in the MD5 encrypted form.

5 —— Indicates an MD5 encrypted password with fixed length will follow.

encrypted-password —— An MD5 encrypted password with fixed length,
which you can copy from another switch’s configuration file. After the

encrypted password is configured, you should use the corresponding
unencrypted password if you re-enter this mode.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
If both the enable password and enable secret are defined, you must enter
the password set in enable secret.

Example
Set the secret password as “admin” and unencrypted to access Privileged
EXEC Mode from User EXEC Mode. The password will be displayed in the

encrypted form.

T2600G-28TS(config)#enable secret 0 admin

29

2.5

configure
Description
The configure command is used to access Global Configuration Mode from
Privileged EXEC Mode.

Syntax
configure

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Access Global Configuration Mode from Privileged EXEC Mode:
T2600G-28TS# configure
T2600G-28TS(config)#

2.6

exit
Description
The exit command is used to return to the previous Mode from the current
Mode.

Syntax
exit

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

30

Example
Return to Global Configuration Mode from Interface Configuration Mode, and
then return to Privileged EXEC Mode:
T2600G-28TS(config-if)# exit
T2600G-28TS(config)#exit
T2600G-28TS#

2.7

end
Description
The end command is used to return to Privileged EXEC Mode.

Syntax
end

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Return to Privileged EXEC Mode from Interface Configuration Mode:
T2600G-28TS(config-if)#end
T2600G-28TS#

2.8

clipaging
Description
The clipaging command is used to enable the pause function for the screen
display. If you want to display all the related information of the switch at once
when using the show command, use no clipaging command.

31

Syntax
clipaging
no clipaging

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Disable the pause function for the screen display:
T2600G-28TS(config)#no clipaging

2.9

history
Description
The history command is used to show the latest 20 commands you entered

in the current mode since the switch is powered.

Syntax
history

Command Mode
Privileged EXEC Mode and any Configuration Mode

Privilege Requirement
None.

Example
Show the commands you have entered in the current mode:
T2600G-28TS (config)# history
1 history

32

2.10

history clear
Description
The history clear command is used to clear the commands you have entered
in the current mode, therefore these commands will not be shown next time
you use the history command.

Syntax
history clear

Command Mode
Privileged EXEC Mode and any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear the commands you have entered in the current mode:
T2600G-28TS(config)#history clear

33

Chapter 3

IEEE 802.1Q VLAN Commands

VLAN (Virtual Local Area Network) technology is developed for the switch to divide the LAN
into multiple logical LANs flexibly. Hosts in the same VLAN can communicate with each other,

regardless of their physical locations. VLAN can enhance performance by conserving
bandwidth, and improve security by limiting traffic to specific domains.

3.1

vlan
Description
The vlan command is used to create IEEE 802.1Q VLAN and enter VLAN
Configuration Mode. To delete the IEEE 802.1Q VLAN, use no vlan command.

Syntax
vlan vlan-list
no vlan vlan-list

Parameter
vlan-list —— Specify IEEE 802.1Q VLAN ID list, ranging from 2 to 4094, in the
format of 2-3, 5. It is multi-optional.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create VLAN 2-10 and VLAN 100:
T2600G-28TS(config)# vlan 2-10,100
Delete VLAN 2:
T2600G-28TS(config)# no vlan 2

34

3.2

interface vlan
Description
The interface vlan command is used to create VLAN Interface and enter
Interface VLAN Mode. To delete VLAN Interface, use no interface vlan
command.

Syntax
interface vlan vlan-id
no interface vlan vlan-id

Parameter
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 1 to 4094.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create VLAN Interface 2:
T2600G-28TS(config)# interface vlan 2

3.3

name
Description
The name command is used to assign a description to a VLAN. To clear the
description, use no name command.

Syntax
name descript
no name

35

Parameter
descript ——String to describe the VLAN, which contains 16 characters at
most.

Command Mode
VLAN Configuration Mode(VLAN)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the name of VLAN 2 as “group1”:
T2600G-28TS(config)# vlan 2
T2600G-28TS(config-vlan)# name group1

3.4

switchport mode
Description
The switchport mode command is used to configure the Link Types for the

ports.

Syntax
switchport mode { access | trunk | general }

Parameter
access | trunk | general —— Link Types. There are three Link Types for the

ports.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

36

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the Link Type of Gigabit Ethernet port 1/0/3 as “trunk”:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport mode trunk

3.5

switchport access vlan
Description
The switchport access vlan command is used to add the desired Access

port to IEEE 802.1Q VLAN, or to remove a port from the corresponding VLAN.

Syntax
switchport access vlan vlan-id
no switchport access vlan

Parameter
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 2 to 4094.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure Gigabit Ethernet port 1/0/3 whose link type is “access” to VLAN 2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
37

T2600G-28TS(config-if)#switchport access vlan 2

3.6

switchport trunk allowed vlan
Description
The switchport trunk allowed vlan command is used to add the desired
trunk port to IEEE 802.1Q VLAN. To remove a trunk port from the
corresponding VLAN, use no switchport trunk allowed vlan command.

Syntax
switchport trunk allowed vlan { vlan-list }
no switchport trunk allowed vlan { vlan-list }

Parameter
vlan-list —— VLAN ID list, ranging from 2 to 4094, in the format of 2-3, 5. It is

multi-optional.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the link type of port 2 as trunk and add it to VLAN 2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#switchport mode trunk
T2600G-28TS(config-if)#switchport trunk allowed vlan 2

38

3.7

switchport trunk allowed vlan all
Description
The switchport trunk allowed vlan all command is used to add the desired
trunk port to all the IEEE 802.1Q VLANs. To remove a trunk port from all the
IEEE 802.1Q VLANs, use no switchport trunk allowed vlan all command.

Syntax
switchport trunk allowed vlan all
no switchport trunk allowed vlan all

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the link type of port 2 as trunk and add it to all the VLANs:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#switchport mode trunk
T2600G-28TS(config-if)# switchport trunk allowed vlan all

3.8

switchport general allowed vlan
Description
The switchport general allowed vlan command is used to add the desired

General port to IEEE 802.1Q VLAN, or to remove a port from the
corresponding VLAN.

39

Syntax
switchport general allowed vlan vlan-list { tagged | untagged }
no switchport general allowed vlan vlan-list

Parameter
vlan-list —— VLAN ID list, ranging from 2 to 4094, in the format of 2-3, 5. It is

multi-optional.

tagged | untagged —— egress-rule.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure Gigabit Ethernet port 1/0/4 whose link type is “general” to VLAN 2
and its egress-rule as “tagged”:

T2600G-28TS(config)#interface gigabitEthernet 1/0/4
T2600G-28TS(config-if)#switchport mode general
T2600G-28TS(config-if)#switchport general allowed vlan 2 tagged

3.9

switchport pvid
Description
The switchport pvid command is used to configure the PVID for the switch
ports.

Syntax
switchport pvid vlan-id

40

Parameter
vlan-id —— VLAN ID, ranging from 1 to 4094.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the PVID of port 1/0/2 as 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# switchport pvid 2

3.10

show vlan summary
Description
The show vlan summary command is used to display the summarized
information of IEEE 802.1Q VLAN.

Syntax
show vlan summary

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the summarized information of IEEE 802.1Q VLAN:
T2600G-28TS(config)# show vlan summary

41

3.11

show vlan brief
Description
The show vlan brief command is used to display the brief information of IEEE
802.1Q VLAN.

Syntax
show vlan brief

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the brief information of IEEE 802.1Q VLAN:
T2600G-28TS(config)# show vlan brief

3.12

show vlan
Description
The show vlan command is used to display the information of IEEE 802.1Q
VLAN.

Syntax
show vlan [ id vlan-id ]

Parameter
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 1 to 4094. It is

multi-optional. Using the show vlan command without parameter displays the
detailed information of all VLANs.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

42

Privilege Requirement
None.

Example
Display the information of vlan 5:
T2600G-28TS(config)# show vlan id 5

3.13

show interface switchport
Description
The show interface switchport command is used to display the IEEE 802.1Q
VLAN configuration information of the specified port/port channel.

Syntax
show

interface
port-channel-id ]

switchport

[

gigabitEthernet port

| port-channel

Parameter
port —— The port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the VLAN configuration information of all ports and port channels:
T2600G-28TS(config)# show interface switchport

43

Chapter 4

MAC-based VLAN Commands

MAC VLAN (Virtual Local Area Network) is the way to classify the VLANs based on MAC

Address. A MAC address is relative to a single VLAN ID. The untagged packets and the
priority-tagged packets coming from the MAC address will be tagged with this VLAN ID.

4.1

mac-vlan mac-address
Description
The mac-vlan mac-address command is used to create a MAC-based VLAN

entry. To delete a MAC-based VLAN entry, use the no mac-vlan

mac-address command.

Syntax
mac-vlan mac-address mac-addr vlan vlan-id [description descript]
no mac-vlan mac-address mac-addr

Parameter
mac-addr —— MAC address, in the format of XX:XX:XX:XX:XX:XX.
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 1 to 4094.
descript —— Give a description to the MAC address for identification, which

contains 8 characters at most.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create VLAN 2 with the MAC address 00:11:11:01:01:12 and the name “TP”:
44

T2600G-28TS(config)#mac-vlan mac-address 00:11:11:01:01:12 vlan 2
description TP

4.2

mac-vlan
Description
The mac-vlan command is used to enable a port for the MAC-based VLAN

feature. Only the port is enabled can the configured MAC-based VLAN take

effect. To disable the MAC-based VLAN function, use no mac-vlan command.

All the ports are disabled by default.

Syntax
mac-vlan
no mac-vlan

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Gigabit Ethernet port 1/0/3 for the MAC-based VLAN feature:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#mac-vlan

45

4.3

show mac-vlan
Description
The show mac-vlan command is used to display the information of the

MAC-based VLAN entry. MAC address and VLAN ID can be used to filter the
displayed information.

Syntax
show mac-vlan { all | mac-address mac-addr | vlan vlan-id }

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Parameter
mac-addr —— MAC address, in the format of XX:XX:XX:XX:XX:XX.
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 1 to 4094.

Example
Display the information of all the MAC-based VLAN entry:
T2600G-28TS(config)#show mac-vlan all

4.4

show mac-vlan interface
Description
The show mac-vlan interface command is used to display the port state of

MAC-based VLAN.

Syntax
show mac-vlan interface

46

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the enable state of all the ports:
T2600G-28TS(config)#show mac-vlan interface

47

Chapter 5

Protocol-based VLAN Commands

Protocol VLAN (Virtual Local Area Network) is the way to classify VLANs based on Protocols. A
Protocol is relative to a single VLAN ID. The untagged packets and the priority-tagged packets
matching the protocol template will be tagged with this VLAN ID.

5.1

protocol-vlan template (For T2600G-18TS
only)

Description
The protocol-vlan template command is used to create Protocol-based

VLAN template. To delete Protocol-based VLAN template, use no

protocol-vlan template command.

Syntax
protocol-vlan template name protocol-name ether-type type
no protocol-vlan template template-idx

Parameter
protocol-name —— Give a name for the Protocol-based VLAN Template ,

which contains 8 characters at most.

ether-type type —— Specify the Ethernet type. It should be 4 hexadecimal
numbers.

template-idx —— The number of the Protocol-based VLAN Template. You

can get the template corresponding to the number by the show

protocol-vlan template command.

Command Mode
Global Configuration Mode

48

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a Protocol-based VLAN template named “TP” whose Ethernet
protocol type is 0x2024:

T2600G-18TS(config)#protocol-vlan template name TP ether-type 2024

5.2

protocol-vlan template (For other switches)
Description
The protocol-vlan template command is used to create Protocol-based

VLAN template. To delete Protocol-based VLAN template, use no

protocol-vlan template command.

Syntax
protocol-vlan template name protocol-name frame { ether_2 ether-type

type | snap ether-type type | llc dsap dsap_type ssap ssap_type }
no protocol-vlan template template-idx

Parameter
protocol-name —— Give a name for the Protocol-based VLAN Template ,
which contains 8 characters at most.

ether_2 ether-type type —— Specify the Ethernet type.
snap ether-type type —— Specify the Ethernet type.
llc dsap dsap_type ssap ssap_type —— Specify the DSAP type and the
SSAP type.

template-idx —— The number of the Protocol-based VLAN Template. You

can get the template corresponding to the number by the show

protocol-vlan template command.

49

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a Protocol-based VLAN template named “TP” whose Ethernet
protocol type is 0x2024:

T2600G-28TS(config)#protocol-vlan template name TP frame ether_2
ether-type 2024

5.3

protocol-vlan vlan
Description
The protocol-vlan vlan command is used to create a Protocol-based VLAN

entry. To delete a Protocol-based VLAN entry, use no protocol-vlan vlan
command.

Syntax
protocol-vlan vlan vlan-id template template-idx
no protocol-vlan vlan group-idx

Parameter
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 1-4094.
template-idx ——The number of the Protocol-based VLAN Template. You can

get the template corresponding to the number by the show protocol-vlan
template command.

group-idx ——The number of the Protocol-based VLAN entry. You can get
the Protocol-based VLAN entry corresponding to the number by the show

protocol-vlan vlan command.

50

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create Protocol-based VLAN 2 and bind it with Protocol-based VLAN Template
3:

T2600G-28TS(config)#protocol-vlan vlan 2 template 3

5.4

protocol-vlan group
Description
The protocol-vlan command is used to add the port to a specified protocol

group. To remove the port from this protocol group, use no protocol-vlan
group command.

Syntax
protocol-vlan group index
no protocol-vlan group index

Parameter
index —— Specify the protocol group ID.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

51

Example
Add Gigabit Ethernet port 20 to protocol group 1:
T2600G-28TS(config)#interface gigabitEthernet 1/0/20
T2600G-28TS(config-if)#protocol-vlan group 1

5.5

show protocol-vlan template
Description
The show protocol-vlan template command is used to display the

information of the Protocol-based VLAN templates.

Syntax
show protocol-vlan template

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the information of the Protocol-based VLAN templates:
T2600G-28TS(config)#show protocol-vlan template

5.6

show protocol-vlan vlan
Description
The show protocol-vlan vlan command is used to display the information

about Protocol-based VLAN entry.

Syntax
show protocol-vlan vlan
52

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display information of the Protocol-based VLAN entry:
T2600G-28TS(config)#show protocol-vlan vlan

53

Chapter 6

VLAN-VPN Commands

VLAN-VPN (Virtual Private Network) function, the implement of a simple and flexible Layer 2

VPN technology, allows the packets with VLAN tags of private networks to be encapsulated
with VLAN tags of public networks at the network access terminal of the Internet Service
Provider. And these packets will be transmitted with double-tag across the public networks.

6.1

dot1q-tunnel
Description
The dot1q-tunnel command is used to enable the VLAN-VPN function
globally. To disable the VLAN-VPN function, use the no dot1q-tunnel

command.

Syntax
dot1q-tunnel

no dot1q-tunnel

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the VLAN-VPN function globally:
T2600G-28TS(config)#dot1q-tunnel

54

6.2

dot1q-tunnel tpid
Description
The dot1q-tunnel tpid command is used to configure Global TPID of the
VLAN-VPN. To restore to the default value, use the no dot1q-tunnel tpid
command.

Syntax
dot1q-tunnel tpid tpid

no dot1q-tunnel tpid

Parameter
tpid —— The value of Global TPID. It must be 4 Hex integers. By default, it is

8100.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure Global TPID of the VLAN-VPN as 0x9100:
T2600G-28TS(config)#dot1q-tunnel tpid 9100

6.3

dot1q-tunnel mapping

Note: T2600G-18TS doesn’t support this command.

Description
The dot1q-tunnel mapping command is used to enable the VLAN Mapping
feature globally. To disable this function, use the no dot1q-tunnel mapping
command. By default, the VLAN Mapping feature is disabled.
55

Syntax
dot1q-tunnel mapping

no dot1q-tunnel mapping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the VLAN mapping feature globally:
T2600G-28TS(config)#dot1q-tunnel mapping

6.4

switchport dot1q-tunnel missdrop
Description
The switchport dot1q-tunnel missdrop command is used to enable the

VLAN-VPN missdrop function for a specific port. To disable the VLAN-VPN

missdrop function, use the no switchport dot1q-tunnel missdrop command.

Syntax
switchport dot1q-tunnel missdrop

no switchport dot1q-tunnel missdrop

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the VLAN-VPN missdrop function for Gigabit Ethernet port 1/0/3:
56

T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport dot1q-tunnel missdrop

6.5

switchport dot1q-tunnel mapping
Description
The switchport dot1q-tunnel mapping command is used add the VLAN

Mapping entry on a specified port. To delete the VLAN Mapping entry on this
port, use the no switchport dot1q-tunnel mapping command.

Syntax
switchport dot1q-tunnel mapping c-vlan sp-vlan [descript]

no switchport dot1q-tunnel mapping c-vlan

Parameter
c-vlan —— Customer VLAN ID, ranging from 1 to 4094.

sp-vlan —— Service Provider VLAN ID, ranging from 1 to 4094.

descript —— Give a description to the VLAN Mapping entry, which contains
15 characters at most.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a VLAN Mapping entry on the Gigabit Ethernet port 1/0/3 with the
Customer VLAN as VLAN 2 and the Service Provider VLAN as VLAN 3:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport dot1q-tunnel mapping 2 3

57

6.6

switchport dot1q-tunnel mode
Description
The switchport dot1q-tunnel mode command is used to configure the VPN

port’s mode. To close this VPN port, use the no switchport dot1q-tunnel

mode command. By default, no port has been configured as the VPN port.

The VPN port mode uni and nni cannot switch to each other directly, so close
the VPN port and switch to the other mode if needed.

Syntax
switchport dot1q-tunnel mode { uni/nni }

no switchport dot1q-tunnel mode

Parameter
uni ——The port connected to the clients.

(Note: T2600G-18TS does’t support uni port setting.)

nni ——The port connected to the ISP.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Gigabit Ethernet port 1/0/3 as the VPN UNI ports:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport dot1q-tunnel mode uni

58

6.7

show dot1q-tunnel
Description
The show dot1q-tunnel command is used to display the global configuration
information of the VLAN VPN.

Syntax
show dot1q-tunnel

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration information of the VLAN VPN:
T2600G-28TS(config)#show dot1q-tunnel

6.8

show dot1q-tunnel mapping
Description
The show dot1q-tunnel mapping command is used to display the

information of VLAN Mapping entry.

Syntax
show dot1q-tunnel mapping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

59

Example
Display the information of VLAN Mapping entry:
T2600G-28TS(config)#show dot1q-tunnel mapping

6.9

show dot1q-tunnel interface
Description
The show dot1q-tunnel mapping interface command is used to display the

VLAN VPN port type.

Syntax
show dot1q-tunnel interface

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the port type of all VLAN VPN ports:
T2600G-28TS(config)#show dot1q-tunnel interface

60

Chapter 7

Private VLAN Commands

Note: T2600G-18TS doesn't support Private VLAN feature.
Private VLANs are configured specially for saving VLAN resource of uplink devices and
decreasing broadcast.

7.1

private-vlan primary
Description
The private-vlan primary command is used to configure the designated

VLAN as the primary VLAN of the Private VLAN. To remove the primary VLAN

property pf the current VLAN, use no private-vlan primary command.

Syntax
private-vlan primary
no private-vlan primary

Command Mode
VLAN Configuration Mode (VLAN)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the VLAN 3 as the primary VLAN of the private VLAN:
T2600G-28TS(config)#vlan 3
T2600G-28TS(config-vlan)#private-vlan primary

61

7.2

private-vlan community
Description
The private-vlan community command is used to configure the designated

VLAN as the community VLAN of the Private VLAN. To remove the
community VLAN property pf the current VLAN, use no private-vlan
community command.

Syntax
private-vlan community
no private-vlan community

Command Mode
VLAN Configuration Mode (VLAN)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the VLAN 4 as the community VLAN of the private VLAN:
T2600G-28TS(config)#vlan 4
T2600G-28TS(config-vlan)#private-vlan community

7.3

private-vlan isolated
Description
The private-vlan isolated command is used to configure the designated

VLAN as the isolated VLAN of the Private VLAN. To remove the isolated VLAN
property pf the current VLAN, use no private-vlan isolated command.

Syntax
private-vlan isolated
no private-vlan isolated
62

Command Mode
VLAN Configuration Mode (VLAN)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the VLAN 3 as the isolated VLAN of the private VLAN:
T2600G-28TS(config)#vlan 3
T2600G-28TS(config-vlan)#private-vlan isolated

7.4

private-vlan association
Description
The private-vlan association command is used to associate primary VLAN

with secondary VLAN. To exterminate the currently association, use no

private-vlan association command.

Syntax
private-vlan association vlan_list
no private-vlan association vlan_list

Parameter
vlan_list —— Secondary VLAN ID, ranging from 2 to 4094.

Command Mode
VLAN Configuration Mode (VLAN)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Associate primary VLAN 3 with community VLAN 4 as a private VLAN:
63

T2600G-28TS(config)#vlan 3
T2600G-28TS(config-vlan)#private-vlan association 4

7.5

switchport private-vlan
Description
The switchport private-vlan command is used to configure the private VLAN

mode for the switchport. To invalid the configuration, use no switchport
private-vlan command.

Syntax
switchport private-vlan { promiscuous | host }
no switchport private-vlan

Parameter
promiscuous | host —— Configure the private VLAN mode for the switchport.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure Gigabit Ethernet port 3 as “host”:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport private-vlan host

64

7.6

switchport private-vlan host-association
Description
The switchport private-vlan host-association command is used to add host
type port to private VLAN. To remove the port from Private VLAN, use no
switchport private-vlan host-association command.

Syntax
switchport private-vlan host-association primary_vlan_id

secondary_vlan_id vlantype

no switchport private-vlan host-association

Parameter
primary-vlan-id —— Primary VLAN ID, ranging from 2 to 4094.
secondary-vlan-id —— Secondary VLAN ID, ranging from 2 to 4094.
vlantype —— Specify the type of the secondary VLAN, either community or
isolated.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure host type Gigabit Ethernet port 1/0/3 as a member of primary
VLAN 3 and secondary VLAN 4, with the type of VLAN 4 as community:
T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport private-vlan host-association 3 4
community

65

7.7

switchport private-vlan mapping
Description
The switchport private-vlan mapping command is used to add promiscuous

type port to private VLAN. To remove the port from Private VLAN, use no
switchport private-vlan mapping command.

Syntax
switchport private-vlan mapping primary_vlan_id secondary_vlan_id
no switchport private-vlan mapping

Parameter
primary-vlan-id —— Primary VLAN ID, ranging from 2 to 4094.
secondary-vlan-id —— Secondary VLAN ID, ranging from 2 to 4094.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure promiscuous type Gigabit Ethernet port 1/0/3 as a member of
primary VLAN 3 and secondary VLAN 4:

T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)#switchport private-vlan mapping 3 4

66

7.8

show vlan private-vlan
Description
The show vlan private-vlan command is used to display the Private VLAN

configuration information of the switch.

Syntax
show vlan private-vlan

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display the configuration information of all Private VLAN:
T2600G-28TS(config)#show vlan private-vlan

7.9

show vlan private-vlan interface
Description
The show vlan private-vlan interface command is used to display the

Private VLAN configuration information of the specified port(s).

Syntax
show vlan private-vlan interface [gigabitEthernet port | port-channel

port-channel-id ]

Parameter
port —— The port number.
port-channel-id —— The ID of the port channel.

67

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display the configuration information of all the Ethernet ports:
T2600G-28TS(config)#show vlan private-vlan interface

68

Chapter 8

L2PT Commands

L2PT (Layer 2 Protocol Tunneling) is a feature for service providers to transmit packets from

different customers across their ISP networks and maintain Layer 2 protocol configurations of
each customer. The supported Layer 2 protocols are STP (Spanning Tree Protocol), GVRP

(GARP VLAN Registration Protocol), CDP (Cisco Discovery Protocol), VTP (VLAN Trunking
Protocol), PAgP (Port Aggregation Protocol), UDLD (UniDirectional Link Detection) and
PVST+(Per VLAN Spanning Tree Plus).

8.1

l2protocol-tunnel
Description
The l2protocol-tunnel command is used to enable the layer 2 protocol

tunneling (L2PT) function globally. To disable the L2PT function, use no
l2protocol-tunnel command.

Syntax
l2protocol-tunnel
no l2protocol-tunnel

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the L2PT function globally:
T2600G-28TS(config)# l2protocol-tunnel

69

8.2

l2protocol-tunnel type
Description
The l2protocol-tunnel type command is used to configure the L2PT function

on a specified port. To disable the L2PT function on the specified port, use no

l2protocol-tunnel command.

Syntax
l2protocol-tunnel type nni
l2protocol-tunnel type uni { 01000ccccccc | 01000ccccccd | gvrp | stp | lacp

| all } [ threshold threshold ]
no l2protocol-tunnel

Parameter
nni —— Specify the port type according to its connecting device in the

network. Specify the port’s type as NNI if it is connecting to the ISP network.
uni —— Specify the port type according to its connecting device in the

network. Specify the port’s type as UNI if it is connecting to the user’s local
network.

01000ccccccc | 01000ccccccd | gvrp | stp | lacp | all —— Select the

supported Layer 2 protocol type. Packets of the specified protocol will be

encapsulated with their destination MAC address before they are sent to the
ISP network. Packets will be decapsulated to restore their Layer 2 protocol

and MAC address information before they are sent to the customer network.
•

01000ccccccc: Enable protocol tunneling for the packets with

destination MAC address 01-00-0C-CC-CC-CC. 01-00-0CC-CC-CC-CC is

used as the destination MAC address of the CDP/VTP/PAgP/UDLD packets.
•

01000ccccccd: Enable protocol tunneling for the packets with

destination MAC address 01-00-0C-CC-CC-CD. 01-00-0CC-CC-CC-CD is

used as the destination MAC address of Cisco PVST+ BPDUs.
•

gvrp: Enable protocol tunneling for the GVRP packets.
70

•

stp: Enable protocol tunneling for the STP packets.



lacp: Enable protocol tunneling for the LACP packets.

•

all: All the above Layer 2 protocols are supported for tunneling.

threshold ——Configure the threshold for packets-per-second accepted for

encapsulation. Packets beyond the threshold will be dropped. It ranges from
0 to 1000.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure port 1/0/3 as a UNI port for STP packets with the threshold as 1000
packets/second:

T2600G-28TS(config)#interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# l2protocol-tunnel type uni stp threshold 1000

8.3

show l2protocol-tunnel global
Description
The show l2protocol-tunnel global command is used to display the global
L2PT status.

Syntax
show l2protocol-tunnel global

Command Mode
Privileged EXEC Mode and Any Configuration Mode

71

Privilege Requirement
None.

Example
Display the global L2PT status:
T2600G-28TS(config)# show l2protocol-tunnel global

8.4

show l2protocol-tunnel interface
Description
The show l2protocol-tunnel interface command is used to display the L2PT
configuration information of a specified Ethernet port or of all Ethernet ports.

Syntax
show l2protocol-tunnel interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameter
port —— The port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the L2PT configuration information of Gigabit Ethernet port 1/0/1:
T2600G-28TS(config)#show l2protocol-tunnel interface gigabitEthernet
1/0/1
Display the L2PT configuration information of all Ethernet ports:
T2600G-28TS(config)#show l2protocol-tunnel interface
72

73

Chapter 9

GVRP Commands

GVRP (GARP VLAN registration protocol) is an implementation of GARP (generic attribute

registration protocol). GVRP allows the switch to automatically add or remove the VLANs via
the dynamic VLAN registration information and propagate the local VLAN registration
information to other switches, without having to individually configure each VLAN.

9.1

gvrp
Description
The gvrp command is used to enable the GVRP function globally. To disable
the GVRP function, use no gvrp command.

Syntax
gvrp
no gvrp

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the GVRP function globally:
T2600G-28TS(config)#gvrp

74

9.2

gvrp (interface)
Description
The gvrp command is used to enable the GVRP function for the desired port.

To disable it, use no gvrp command. The GVRP feature can only be enabled
for the trunk-type ports.

Syntax
gvrp
no gvrp

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the GVRP function for Gigabit Ethernet ports 1/0/2-6:
T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-6
T2600G-28TS(config-if-range)#gvrp

9.3

gvrp registration
Description
The gvrp registration command is used to configure the GVRP registration
type for the desired port. To restore to the default value, use no gvrp
registration command.

Syntax
gvrp registration { normal | fixed | forbidden }
75

no gvrp registration

Parameter
normal | fixed | forbidden —— Registration mode. By default, the registration

mode is “normal”.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the GVRP registration mode as “fixed” for Gigabit Ethernet ports
1/0/2-6:

T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-6
T2600G-28TS(config-if-range)#gvrp registration fixed

9.4

gvrp timer
Description
The gvrp timer command is used to set a GVRP timer for the desired port. To
restore to the default setting of a GARP timer, use no gvrp timer command.

Syntax
gvrp timer { leaveall | join | leave } value
no gvrp timer [leaveall | join | leave]

Parameter
leaveall | join | leave —— They are the three timers: leave All, join and leave.

Once the LeaveAll Timer is set, the port with GVRP enabled can send a
LeaveAll message after the timer times out, so that other GARP ports can
76

re-register all the attribute information. After that, the LeaveAll timer will start

to begin a new cycle. To guarantee the transmission of the Join messages, a

GARP port sends each Join message two times. The Join Timer is used to

define the interval between the two sending operations of each Join
message. Once the Leave Timer is set, the GARP port receiving a Leave

message will start its Leave timer, and deregister the attribute information if it
does not receive a Join message again before the timer times out.

value ——The value of the timer. The LeaveAll Timer ranges from 1000 to

30000 centiseconds and the default value is 1000 centiseconds. The Join

Timer ranges from 20 to 1000 centiseconds and the default value is 20
centiseconds. The Leave Timer ranges from 60 to 3000 centiseconds and
the default value is 60 centiseconds.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the GARP leaveall timer of Gigabit Ethernet port 1/0/6 as 2000
centiseconds and restore the join timer of it to the default value:
T2600G-28TS(config)#interface gigabitEthernet 1/0/6
T2600G-28TS(config-if)#gvrp timer leaveall 2000
T2600G-28TS(config-if)#no gvrp timer join

9.5

show gvrp interface
Description
The show gvrp interface command is used to display the GVRP
configuration information of a specified Ethernet port or of all Ethernet ports.

77

Syntax
show gvrp interface [ gigabitEthernet port | port-channel port-channel-id ]

Parameter
port —— The port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the GVRP configuration information of Gigabit Ethernet port 1:
T2600G-28TS(config)#show gvrp interface gigabitEthernet 1/0/1
Display the GVRP configuration information of all Ethernet ports:
T2600G-28TS(config)#show gvrp interface

9.6

show gvrp global
Description
The show gvrp global command is used to display the global GVRP status.

Syntax
show gvrp global

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

78

Example
Display the global GVRP status:
T2600G-28TS(config)#show gvrp global

79

Chapter 10 Voice VLAN Commands
Voice VLANs are configured specially for voice data stream. By configuring Voice VLANs and
adding the ports with voice devices attached to voice VLANs, you can perform QoS-related

configuration for voice data, ensuring the transmission priority of voice data stream and voice
quality.

10.1

voice vlan
Description
The voice vlan command is used to enable Voice VLAN function. To disable

Voice VLAN function, use no voice vlan command.

Syntax
voice vlan vlan-id
no voice vlan

Parameter
vlan-id —— Specify IEEE 802.1Q VLAN ID, ranging from 2 to 4094.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Voice VLAN function for VLAN 10:
T2600G-28TS(config)# voice vlan 10

80

10.2

voice vlan aging
Description
The voice vlan aging command is used to set the aging time for a voice

VLAN. To restore to the default aging time for the Voice VLAN, use no voice
vlan aging command.

Syntax
voice vlan aging time
no voice vlan aging

Parameter
time —— Aging time (in minutes) to be set for the Voice VLAN. It ranges from

1 to 43200 minutes and the default value is 1440 minutes.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the aging time for the Voice VLAN as 1 minute:
T2600G-28TS(config)# voice vlan aging 1

10.3

voice vlan priority
Description
The voice vlan priority command is used to configure the priority for the

Voice VLAN. To restore to the default priority, use no voice vlan priority

command.

81

Syntax
voice vlan priority pri
no voice vlan priority

Parameter
pri —— Priority, ranging from 0 to 7, and the default value is 6.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the priority of the Voice VLAN as 5:
T2600G-28TS(config)# voice vlan priority 5

10.4

voice vlan mac-address
Description
The voice vlan mac-address command is used to create Voice VLAN OUI. To

delete the specified Voice VLAN OUI, use no voice vlan mac-address
command.

Syntax
voice vlan mac-address mac-addr mask mask [ description descript ]
no voice vlan mac-address mac-addr

Parameter
mac-addr —— The OUI address of the voice device, in the format of

XX:XX:XX:XX:XX:XX.

82

mask —— The OUI address mask of the voice device, in the format of

XX:XX:XX:XX:XX:XX.

descript ——Give a description to the OUI for identification which contains 16
characters at most.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a Voice VLAN OUI described as TP-Phone with the OUI address

00:11:11:11:11:11 and the mask address FF:FF:FF:00:00:00:

T2600G-28TS(config)#voice vlan mac-address 00:11:11:11:11:11 mask
FF:FF:FF:00:00:00 description TP-Phone

10.5

switchport voice vlan mode
Description
The switchport voice vlan mode command is used to configure the Voice
VLAN mode for the Ethernet port.

Syntax
switchport voice vlan mode { manual | auto }

Parameter
manual | auto —— Port mode.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

83

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the port 1/0/3 to operate in the auto voice VLAN mode:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# switchport voice vlan mode auto

10.6

switchport voice vlan security
Description
The switchport voice vlan security command is used to enable the Voice

VLAN security feature. To disable the Voice VLAN security feature, use no
switchport voice vlan security command.

Syntax
switchport voice vlan security
no switchport voice vlan security

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable port 1/0/3 for the Voice VLAN security feature:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# switchport voice vlan security

84

10.7

show voice vlan
Description
The show voice vlan command is used to display the global configuration
information of Voice VLAN.

Syntax
show voice vlan

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Display the configuration information of Voice VLAN globally:
T2600G-28TS(config)# show voice vlan

10.8

show voice vlan oui
Description
The show voice vlan oui command is used to display the configuration
information of Voice VLAN OUI.

Syntax
show voice vlan oui

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
85

Example
Display the configuration information of Voice VLAN OUI:
T2600G-28TS(config)# show voice vlan oui

10.9

show voice vlan switchport
Description
The show voice vlan switchport command is used to display the Voice VLAN
configuration information of a specified port/port channel.

Syntax
show voice vlan switchport [ gigabitEthernet port | port-channel

port-channel-id ]

Parameter
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Display the Voice VLAN configuration information of all ports and port
channels:

T2600G-28TS(config)# show voice vlan switchport
Display the Voice VLAN configuration information of port 1/0/2:
T2600G-28TS(config)# show voice vlan switchport gigabitEthernet 1/0/2

86

Chapter 11 Etherchannel Commands
Etherchannel Commands are used to configure LAG and LACP function.
LAG (Link Aggregation Group) is to combine a number of ports together to make a single
high-bandwidth data path, which can highly extend the bandwidth. The bandwidth of the LAG is
the sum of bandwidth of its member port.

LACP (Link Aggregation Control Protocol) is defined in IEEE802.3ad and enables the dynamic

link aggregation and disaggregation by exchanging LACP packets with its partner. The switch

can dynamically group similarly configured ports into a single logical link, which will highly
extend the bandwidth and flexibly balance the load.

11.1

channel-group
Description
The channel-group command is used to add a port to the EtherChannel

Group and configure its mode. To delete the port from the EtherChannel
Group, use no channel-group command.

Syntax
channel-group num mode { on | active | passive }
no channel-group

Parameter
num —— The number of the EtherChannel Group, ranging from 1 to 14.
on —— Enable the static LAG.
active —— Enable the active LACP mode.
passive —— Enable the passive LACP mode.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

87

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add ports 2-4 to EtherChannel Group 1 and enable the static LAG:
T2600G-28TS(config)# interface range gigabitEthernet 1/0/2-4
T2600G-28TS(config-if-range)# channel-group 1 mode on

11.2

port-channel load-balance
Description
The port-channel load-balance command is used to configure the

Aggregate Arithmetic for LAG. To return to the default configurations, use no

port-channel load-balance command.

Syntax
port-channel load-balance { src-mac | dst-mac | src-dst-mac | src-ip | dst-ip |

src-dst-ip }

no port-channel load-balance

Parameter
src-mac —— The source MAC address. When this option is selected, the
Aggregate Arithmetic will be based on the source MAC address of the
packets.

dst-mac —— The destination MAC address. When this option is selected, the

Aggregate Arithmetic will be based on the destination MAC address of the
packets.

src-dst-mac —— The source and destination MAC address. When this option

is selected, the Aggregate Arithmetic will be based on the source and
destination MAC addresses of the packets. The Aggregate Arithmetic for

LAG is “src-dst-mac” by default.
88

src-ip —— The source IP address. When this option is selected, the
Aggregate Arithmetic will be based on the source IP address of the packets.

dst-ip —— The destination IP address. When this option is selected, the

Aggregate Arithmetic will be based on the destination IP address of the
packets.

src-dst-ip —— The source and destination IP address. When this option is

selected, the Aggregate Arithmetic will be based on the source and
destination IP addresses of the packets.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Aggregate Arithmetic for LAG as “src-dst-ip”:
T2600G-28TS(config)# port-channel load-balance src-dst-ip

11.3

lacp system-priority
Description
The lacp system-priority command is used to configure the LACP system

priority globally. To return to the default configurations, use no lacp

system-priority command.

Syntax
lacp system-priority pri
no lacp system-priority

Parameter
pri —— The system priority, ranging from 0 to 65535. It is 32768 by default.
89

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the LACP system priority as 1024 globally:
T2600G-28TS(config)# lacp system-priority 1024

11.4

lacp port-priority
Description
The lacp port-priority command is used to configure the LACP port priority
for specified ports. To return to the default configurations, use no lacp
port-priority command.

Syntax
lacp port-priority pri
no lacp port-priority

Parameter
pri —— The port priority, ranging from 0 to 65535. It is 32768 by default.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the LACP port priority as 1024 for ports 1-3:
90

T2600G-28TS(config)# interface range gigabitEthernet 1/0/1-3
T2600G-28TS(config-if-range)# lacp port-priority 1024
Configure the LACP port priority as 2048 for port 4:
T2600G-28TS(config)# interface gigabitEthernet 1/0/4
T2600G-28TS(config-if)# lacp port-priority 2048

11.5

show etherchannel
Description
The show etherchannel command is used to display the EtherChannel
information.

Syntax
show etherchannel [ channel-group-num ] { detail | summary }

Parameter
channel-group-num —— The EtherChannel Group number, ranging from 1 to
14. By default, it is empty, and will display the information of all EtherChannel
Groups.

detail —— The detailed information of EtherChannel.
summary —— The EtherChannel information in summary.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the detailed information of EtherChannel Group 1:
T2600G-28TS(config)# show etherchannel 1 detail

91

11.6

show etherchannel load-balance
Description
The show etherchannel load-balance command is used to display the
Aggregate Arithmetic of LAG.

Syntax
show etherchannel load-balance

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the Aggregate Arithmetic of LAG:
T2600G-28TS(config)# show etherchannel load-balance

11.7

show lacp
Description
The show lacp command is used to display the LACP information for a

specified EtherChannel Group.

Syntax
show lacp [ channel-group-num ] { internal | neighbor }

Parameter
channel-group-num —— The EtherChannel Group number, ranging from 1 to
14. By default, it is empty, and will display the information of all LACP groups.

internal —— The internal LACP information.
neighbor —— The neighbor LACP information.
92

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the internal LACP information of EtherChannel Group 1:
T2600G-28TS(config)# show lacp 1 internal

11.8

show lacp sys-id
Description
The show lacp sys-id command is used to display the LACP system priority

globally.

Syntax
show lacp sys-id

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the LACP system priority:
T2600G-28TS(config)# show lacp sys-id

93

Chapter 12 User Management Commands
User Manage Commands are used to manage the user’s logging information by Web, Telnet or
SSH, so as to protect the settings of the switch from being randomly changed.

12.1

user name (password)
Description
The user name command is used to add a new user or modify the existed

users’ information. To delete the existed users, use no user name command.

This command uses the symmetric encryption.

Syntax
user name name [ privilege admin | operator | power_user | user ] password
{ [ 0 ] password | 7 encrypted-password }

no user name name

Parameter
name ——Type a name for users' login, which contains 16 characters at most,
composed of digits, English letters and under dashes only.

admin | operator | power_user | user —— Access level. “admin” means that

you can edit, modify and view all the settings of different functions. “operator”

means that you can edit, modify and view most of the settings of different
functions. “power-user” means that you can edit, modify and view some of

the settings of different functions. “user” means that you can only view some

of the settings of different functions without the right to edit or modify. It is

“admin” by default. For more details about privilege restrictions, refer to the

Privilege Requirement part in each command.

0 —— Specify the encryption type. 0 indicates that an unencrypted password
will follow. By default, the encryption type is 0.

password —— Users’ login password, a string from 1 to 31 alphanumeric

characters or symbols. The password is case sensitive, allows digits, English
94

letters

(case

( !$%'()*,-./[]{|} ).

sensitive),

underlines

and

sixteen

special

characters

7 —— Indicates a symmetric encrypted password with fixed length will follow.

encrypted-password —— A symmetric encrypted password with fixed length,
which you can copy from another switch’s configuration file. After the

encrypted password is configured, you should use the corresponding
unencrypted password if you re-enter this mode.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
If the password you configured here is unencrypted and the global
encryption function is enabled in service password-encryption, the

password in the configuration file will be displayed in the symmetric
encrypted form.

Example
Add and enable a new admin user named “tplink”, of which the password is
“admin” and unencrypted:

T2600G-28TS(config)#user name tplink privilege admin password 0 admin

12.2

user name (secret)
Description
The user name command is used to add a new user or modify the existed

users’ information. To delete the existed users, use no user name command.

This command uses the MD5 encryption.

95

Syntax
user name name [ privilege admin | operator | power_user | user ] secret { [ 0 ]

password | 5 encrypted-password }
no user name name

Parameter
name ——Type a name for users' login, which contains 16 characters at most,
composed of digits, English letters and under dashes only.

admin | operator | power_user | user —— Access level. “admin” means that

you can edit, modify and view all the settings of different functions. “operator”
means that you can edit, modify and view most of the the settings of different
functions. “power-user” means that you can edit, modify and view some of

the the settings of different functions. “user” means that you can only view

some of the the settings of different functions without the right to edit or
modify. It is “admin” by default.

0 —— Specify the encryption type. 0 indicates that an unencrypted password
will follow. By default, the encryption type is 0.

password ——Users’ login password, a string from 1 to 31 alphanumeric

characters or symbols. The password is case sensitive, allows digits, English
letters

(case

sensitive),

underlines

and

sixteen

special

characters

( !$%'()*,-./[]{|} ). The password will be saved to the configuration file using the
MD5 encrypted algorithm.

5 —— Indicates an MD5 encrypted password with fixed length will follow.

encrypted-password —— An MD5 encrypted password with fixed length,
which you can copy from another switch’s configuration file.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

96

User Guidelines
If both the user name (password) and user name (secret) are defined, only
the latest configured password will take effect.

Example
Add and enable a new admin user named “tplink”, of which the password is
“admin”. The password will be displayed in the encrypted form.

T2600G-28TS(config)#user name tplink privilege admin secret 0 admin

12.3

service password-recovery
Description
The service

password-recovery

command

is

used

to

enable

the

password-recovery feature. To disable the password-recovery feature, use

no service password-recovery command.

With password-recovery enabled, you can connect to the switch’s concole

port and delete all your previous set accounts. You can use the default

username and password (which are both admin) to login the switch after its

startup. For more details about password recovery procedure, refer to
Appendix A in the User Guide.

Syntax
service password-recovery
no service password-recovery

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the switch’s password recovery feature:
97

T2600G-28TS(config)# service password-recovery

12.4

user access-control ip-based
Description
The user access-control ip-based command is used to limit the IP-range of

the users for login. Only the users within the IP-range you set here are

allowed to login. To cancel the user access limit, use no user access-control
command.

Syntax
user access-control ip-based { ip-addr ip-mask } [ snmp ] [ telnet ] [ ssh ]

[ http ] [ https ] [ ping ] [ all ]

no user access-control [ ip-based index id ]

Parameter
ip-addr —— The source IP address. Only the users within the IP-range you
set here are allowed for login. 5 IP-based entries can be configured at most.

ip-mask —— The subnet mask of the IP address.
[ snmp ] [ telnet ] [ ssh ] [ http ] [ https ] [ ping ] [ all ] —— Specify the access
interface. These interfaces are enabled by default.

id —— Delete the specified IP-based entry. The index ranges from 1 to 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the access-control of the user whose IP address is 192.168.0.148:
T2600G-28TS(config)#

user

255.255.255.255
98

access-control

ip-based

192.168.0.148

12.5

user access-control mac-based
Description
The user access-control mac-based command is used to limit the MAC

address of the users for login. Only the user with this MAC address you set

here is allowed to login. To cancel the user access limit, use no user
access-control command.

Syntax
user access-control mac-based { mac-addr } [ snmp ] [ telnet ] [ ssh ] [ http ]
[ https ] [ ping ] [ all ]

no user access-control

Parameter
mac-addr —— The source MAC address. Only the user with this MAC
address is allowed to login.

[ snmp ] [ telnet ] [ ssh ] [ http ] [ https ] [ ping ] [ all ] —— Specify the access
interface. These interfaces are enabled by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure that only the user whose MAC address is 00:00:13:0A:00:01 is
allowed to login:

T2600G-28TS(config)# user access-control mac-based 00:00:13:0A:00:01

99

12.6

user access-control port-based
Description
The user access-control port-based command is used to limit the ports for

login. Only the users connected to these ports you set here are allowed to
login. To cancel the user access limit, use no user access-control command.

Syntax
user access-control port-based interface { gigabitEthernet port-list } [ snmp ]

[ telnet ] [ ssh ] [ http ] [ https ] [ ping ] [ all ]
no user access-control

Parameter
port-list ——The list group of Ethernet ports, in the format of 1/0/1-4. You can
appoint 5 ports at most.

[ snmp ] [ telnet ] [ ssh ] [ http ] [ https ] [ ping ] [ all ] —— Specify the access
interface. These interfaces are enabled by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure that only the users connected to ports 2-6 are allowed to login:
T2600G-28TS(config)#

user

gigabitEthernet 1/0/2-6

100

access-control

port-based

interface

12.7

line
Description
The line command is used to enter the Line Configuration Mode and make

related configurations for the desired user(s), including the login mode and
password configurations.

Syntax
line { console linenum | vty startlinenum endlinenum | ssh | telnet }

Parameter
linenum —— The number of users allowed to login through console port. Its
value is 0 in general, for the reason that console input is only active on one

console port at a time.

startlinenum ——The start serial number of the login user selected to

configure the login mode and password, ranging from 0 to 15. 0 means the
first login user number, 1 means the second, and the rest can be done on the
same manner.

endlinenum —— The end serial number of the login user selected to

configure the login mode and password, ranging from 0 to 15. 0 means the
first login user number, 1 means the second, and the rest can be done on the
same manner.

ssh —— Configure the SSH terminal line.
telnet —— Configure the Telnet terminal line.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enter the Console port configuration mode and configure the console port 0:
101

T2600G-28TS(config)#line console 0
Enter the Virtual Terminal configuration mode so as to prepare further
configurations such as password and login mode for virtual terminal 0 to 5:
T2600G-28TS(config)#line vty 0 5

12.8

password
Description
The password command is used to configure the connection password. To
clear the password, use no password command.

Syntax
password { [ 0 ] password | 7 encrypted-password }
no password

Parameter
0 —— Specify the encryption type. 0 indicates that an unencrypted password
will follow. By default, the encryption type is 0.

password —— Connection password, a string from 1 to 31 alphanumeric

characters or symbols. The password is case sensitive, allows spaces but
ignores leading spaces, and cannot contain question marks. By default, it is
empty.

7 —— Indicates a symmetric encrypted password with fixed length will follow.

encrypted-password —— A symmetric encrypted password with fixed length,
which you can copy from another switch’s configuration file. After the

encrypted password is configured, you should use the corresponding
unencrypted password if you re-enter this mode.

Command Mode
Line Configuration Mode

102

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
If the password you configured here is unencrypted and the global
encryption function is enabled in service password-encryption, the

password in the configuration file will be displayed in the symmetric
encrypted form.

Example
Configure the connection password of Console port connection 0 as “tplink”
and unencrypted:

T2600G-28TS(config)#line console 0
T2600G-28TS(config-line)#password 0 tplink
Configure the connection password of virtual terminal connection 0-5 as
“tplink” and unencrypted:

T2600G-28TS(config)#line vty 0 5
T2600G-28TS(config-line)#password 0 tplink

12.9

login
Description
The login command is used to configure the login mode of a switch which

uses connection password to login. At this situation, a connection password

must be set for virtual terminal connection.

Syntax
login

Command Mode
Line Configuration Mode

103

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the login of Console port connection 0 as login mode:
T2600G-28TS(config)#line console 0
T2600G-28TS(config-line)#login
Configure the login of virtual terminal connection 0-5 as login mode:
T2600G-28TS(config)#line vty 0 5
T2600G-28TS(config-line)#login

12.10 login local
Description
The login local command is used to configure the login mode of the switch

which uses the user name and password to login.

Syntax
login local

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the login of virtual terminal connection 0-5 as login local mode:
T2600G-28TS(config)#line vty 0 5
T2600G-28TS(config-line)#login local
Configure the login of Console port connection 0 as login local mode:
104

T2600G-28TS(config)#line console 0
T2600G-28TS(config-line)#login local

12.11 media-type rj45
Description
The media-type rj45 command is used to configure the console media type

as RJ-45 for input. The switch has two console ports available —— an RJ-45
console port and a micro-USB console port. Console input is active on only

one console port at a time. By default, the micro-USB connector takes

precedence over the RJ-45 connector, which means that, when both the

RJ-45 console connection and micro-USB console connection are valid,

input from the RJ-45 console is disabled, and input from the micro-USB

console is enabled. To return to the default configuration, use no media-type

rj45 command.

Syntax
media-type rj45
no media-type rj45

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the RJ-45 console input:
T2600G-28TS(config)# line console 0
T2600G-28TS(config-line)# media-type rj45
Receive the micro-USB console input prior to the RJ-45 console input:
T2600G-28TS(config)# line console 0
105

T2600G-28TS(config-line)# no media-type rj45

12.12 telnet
Description
The telnet enable command is used to enable the Telnet function. To disable

the Telnet function, use the telnet disable command. This function is enabled
by default.

Syntax
telnet enable
telnet disable

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Disable the Telnet function:
T2600G-28TS(config)# telnet disable

12.13 serial_port baud-rate
Description
The serial_port baud-rate command is used to configure the communication
baud rate on the console port. To return to the default baud rate, use no

serial_port command.

Syntax
serial_port baud-rate { 9600 | 19200 | 38400 | 57600 | 115200 }
no serial_port
106

Parameter
9600 | 19200 | 38400 | 57600 | 115200 ——Specify the communication baud
rate on the console port. The default baul rate is 38400 bps.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the communication baud rate on the console port to the default
value:

T2600G-28TS(config)# no serial_port

12.14 show password-recovery
Description
The show password-recovery command is used to display the status of the
password-recovery feature.

Syntax
show password-recovery

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the status of the password-recovery feature:
T2600G-28TS(config)# show password-recovery
107

12.15 show user account-list
Description
The show user account-list command is used to display the information of

the current users.

Syntax
show user account-list

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of the current users:
T2600G-28TS(config)# show user account-list

12.16 show user configuration
Description
The show user configuration command is used to display the security

configuration information of the users, including access-control, max-number

and the idle-timeout, etc.

Syntax
show user configuration

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
108

Example
Display the security configuration information of the users:
T2600G-28TS(config)# show user configuration

12.17 show telnet-status
Description
The show telnet-status command is used to display the configuration
information of the Telnet function.

Syntax
show telnet-status

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display whether the Telnet function is enabled:
T2600G-28TS(config)# show telnet-status

109

Chapter 13 HTTP and HTTPS Commands
With the help of HTTP (HyperText Transfer Protocol) or HTTPS (Hyper Text Transfer Protocol
over Secure Socket Layer), you can manage the switch through a standard browser.
HTTP is the protocol to exchange or transfer hypertext.

SSL (Secure Sockets Layer), a security protocol, is to provide a secure connection for the
application layer protocol (e.g. HTTP) based on TCP. Adopting asymmetrical encryption

technology, SSL uses key pair to encrypt/decrypt information. A key pair refers to a public key

(contained in the certificate) and its corresponding private key. By default the switch has a
certificate (self-signed certificate) and a corresponding private key. The Certificate/Key
Download function enables the user to replace the default key pair.

13.1

ip http server
Description
The ip http server command is used to enable the HTTP server within the

switch. To disable the HTTP function, use no ip http server command. This
function is enabled by default. The HTTP and HTTPS server function cannot
be disabled at the same time.

Syntax
ip http server
no ip http server

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Disable the HTTP function:
T2600G-28TS(config)# no ip http server
110

13.2

ip http max-users (For T2600G-18TS only)
Description
The ip http max-users command is used to configure the maximum number

of users that are allowed to connect to the HTTP server. To cancel this
limitation, use no ip http max-users command.

Syntax
ip http max-users admin-num operator-num poweruser-num user-num
no ip http max-users

Parameter
admin-num —— The maximum number of the users logging on to the HTTP

server as Admin, ranging from 1 to 16. The total number of users should be
no more than 16.

operator-num —— The maximum number of the users logging on to the

HTTP server as Operator, ranging from 0 to 15.The total number of users

should be less than 16.

poweruser-num—— The maximum number of the users logging on to the
HTTP server as Power User, ranging from 0 to 15.The total number of users
should be less than 16.

user-num—— The maximum number of the users logging on to the HTTP
server as User, ranging from 0 to 15.The total number of users should be less
than 16.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the maximum number of the Admin, Operator, Power User and
User users logging on to the HTTP server as 5, 3, 2 and 3:
111

T2600G-18TS(config)# ip http max-users 5 3 2 3

13.3

ip http max-users (For other switches)
Description
The ip http max-users command is used to configure the maximum number

of users that are allowed to connect to the HTTP server. To cancel this
limitation, use no ip http max-users command.

Syntax
ip http max-users admin-num guest-num
no ip http max-users

Parameter
admin-num —— The maximum number of the users logging on to the HTTP

server as Admin, ranging from 1 to 16. The total number of Admin and Guest
should be less than 16.

guest-num —— The maximum number of the users logging on to the HTTP
server as Guest, ranging from 0 to 15.The total number of Admin and Guest
should be less than 16.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the maximum number of the Admin and Guest users logging on to
the HTTP server as 5 and 3:

T2600G-28TS(config)# ip http max-users 5 3

112

13.4

ip http session timeout
Description
The ip http session timeout command is used to configure the connection

timeout of the HTTP server. To restore to the default timeout time, use no ip
http session timeout command.

Syntax
ip http session timeout time
no ip http session timeout

Parameter
time ——The timeout time, ranging from 5 to 30 in minutes. By default, the
value is 10.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the timeout time of the HTTP connection as 15 minutes:
T2600G-28TS(config)# ip http session timeout 15

13.5

ip http secure-server
Description
The ip http secure-server command is used to enable the HTTPS server

within the switch. To disable the HTTPS function, use no ip http

secure-server command. This function is enabled by default. The HTTP and
HTTPS server function cannot be disabled at the same time.

113

Syntax
ip http secure-server
no ip http secure-server

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Disable the HTTP function:
T2600G-28TS(config)# no ip http secure-server

13.6

ip http secure-protocol
Description
The ip http secure-protocol command is used to configure the SSL protocol
version. To restore to the default SSL version, use no ip http
secure-protocol command. By default, the switch supports SSLv3 and

TLSv1.

Syntax
ip http secure-protocol { [ ssl3 ] [ tls1 ] }
no ip http session

Parameter
ssl3 —— The SSL 3.0 protocol.
tls1 —— The TLS 1.0 protocol

Command Mode
Global Configuration Mode
114

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the protocol of SSL connection as SSL 3.0:
T2600G-28TS(config)# ip http secure-protocol ssl3

13.7

ip http secure-ciphersuite
Description
The ip http secure-ciphersuite command is used to configure the

cipherSuites over the SSL connection supported by the switch. To restore to
the default ciphersuite types, use no ip http secure-ciphersuite command.

Syntax
ip http secure-ciphersuite { [ 3des-ede-cbc-sha ] [ rc4-128-md5 ]

[ rc4-128-sha ] [ des-cbc-sha ] }
no ip http secure-ciphersuite

Parameter
[ 3des-ede-cbc-sha ] [ rc4-128-md5 ] [ rc4-128-sha ] [ des-cbc-sha ] ——

Specify the encryption algorithm and the digest algorithm to use on an SSL
connection. By default, the switch supports all these ciphersuites.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the ciphersuite to be used for encryption over the SSL connection

as 3des-ede-cbc-sha:

115

T2600G-28TS(config)# ip http secure-ciphersuite 3des-ede-cbc-sha

13.8

ip http secure-max-users
Description
The ip http secure-max-users command is used to configure the maximum

number of users that are allowed to connect to the HTTPs server. To cancel
this limitation, use no ip http secure-max-users command.

Syntax
ip http secure-max-users admin-num guest-num
no ip secure-max-users

Parameter
admin-num —— The maximum number of the users logging on to the HTTPs

server as Admin, ranging from 1 to 16. The total number of Admin and Guest
should be less than 16.

guest-num —— The maximum number of the users logging on to the HTTPs

server as Guest, ranging from 0 to 15.The total number of Admin and Guest
should be less than 16.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the maximum number of the Admin and Guest users logging on to
the HTTPs server as 5 and 3:

T2600G-28TS(config)# ip http secure-max-users 5 3

116

13.9

ip http secure-session timeout
Description
The ip http secure-session timeout command is used to configure the

connection timeout of the HTTPS server. To restore to the default timeout
time, use no ip http secure-session timeout command.

Syntax
ip http secure-session timeout time
no ip http secure-session timeout

Parameter
time —— The timeout time, ranging from 5 to 30 in minutes. By default, the

value is 10.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the timeout time of the HTTPs connection as 15 minutes:
T2600G-28TS(config)# ip http secure-session timeout 15

13.10 ip http secure-server download certificate
Description
The ip http secure-server download certificate command is used to

download a certificate to the switch from TFTP server.

Syntax
ip http secure-server download certificate ssl-cert ip-address ip-addr
117

Parameter
ssl-cert —— The name of the SSL certificate which is selected to download

to the switch. The length of the name ranges from 1 to 25 characters. The
Certificate must be BASE64 encoded.

ip-addr —— The IP address of the TFTP server. Both IPv4 and IPv6 addresses
are supported, for example 192.168.0.1 or fe80::1234.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Download an SSL Certificate named ssl-cert from TFTP server with the IP

address of 192.168.0.146:

T2600G-28TS(config)# ip http secure-server download certificate ssl-cert
ip-address 192.168.0.146
Download an SSL Certificate named ssl-cert from TFTP server with the IP

address of fe80::1234

T2600G-28TS(config)# ip http secure-server download certificate ssl-cert
ip-address fe80::1234

13.11

ip http secure-server download key

Description
The ip http secure-server download key command is used to download an

SSL key to the switch from TFTP server.

Syntax
ip http secure-server download key ssl-key ip-address ip-addr
118

Parameter
ssl-key —— The name of the SSL key which is selected to download to the

switch. The length of the name ranges from 1 to 25 characters. The Key must
be BASE64 encoded.

ip-addr —— The IP address of the TFTP server. Both IPv4 and IPv6 addresses
are supported, for example 192.168.0.1 or fe80::1234.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Download an SSL key named ssl-key from TFTP server with the IP address of
192.168.0.146:

T2600G-28TS(config)# ip http secure-server download key ssl-key
ip-address 192.168.0.146
Download an SSL key named ssl-key from TFTP server with the IP address of
fe80::1234

T2600G-28TS(config)# ip http secure-server download key ssl-key
ip-address fe80::1234

13.12 show ip http configuration
Description
The show ip http configuration command is used to display the
configuration information of the HTTP server, including status, session
timeout, access-control, max-user number and the idle-timeout, etc.

119

Syntax
show ip http configuration

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration information of the HTTP server:
T2600G-28TS(config)# show ip http configuration

13.13 show ip http secure-server
Description
The show ip http secure-server command is used to display the global
configuration of SSL.

Syntax
show ip http secure-server

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of SSL:
T2600G-28TS(config)# show ip http secure-server

120

Chapter 14 ARP Commands
Address Resolution Protocol (ARP) is used to resolve an IP address into an Ethernet MAC

address. The swich maintains an ARP mapping table to record the IP-to-MAC mapping relations,

which is used for forwarding packets. An ARP mapping table contains two types of ARP entries:
dynamic and static. An ARP dynamic entry is automatically created and maintained by ARP. A
static ARP entry is manually configured and maintained.

14.1

arp
Description
This arp command is used to add a static ARP entry. To delete the specified
ARP entry, use the no arp command.

Syntax
arp ip mac type
no arp ip type

Parameter
ip —— The IP address of the static ARP entry.
mac —— The MAC address of the static ARP entry.
type —— The ARP type. Configure it as “arpa”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a static ARP entry with the IP as 192.168.0.1 and the MAC as
00:11:22:33:44:55:

121

T2600G-28TS(config)# arp 192.168.0.1 00:11:22:33:44:55 arpa

14.2

clear arp-cache
Description
This clear arp-cache command is used to clear all the dynamic ARP entries.

Syntax
clear arp-cache

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear all the dynamic ARP entries:
T2600G-28TS(config)# clear arp-cache

14.3

arp timeout
Description
This arp timeout command is used to configure the ARP aging time of the

interface.

Syntax
arp timeout timeout
no arp timeout

Parameter
timeout —— Specify the aging time, ranging from 1 to 3000 seconds. The
default value is 600 seconds.

122

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the ARP aging time as 60 seconds on interface 1/0/1:
T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# arp timeout 60

14.4

show arp
Description
This show arp command is used to display the active ARP entries. If no
parameter is speicified, all the active ARP entries will be displayed.

Syntax
show arp [ ip ] [ mac ]
show ip arp [ ip ] [ mac ]

Parameter
ip —— Specify the IP address of your desired ARP entry.
mac —— Specify the MAC address of your desired ARP entry.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

123

Example
Display the ARP entry with the IP as 192.168.0.2:
T2600G-28TS(config)# show ip arp 192.168.0.2

14.5

show ip arp (interface)
Description
This show arp command is used to display the active ARP entries associated
with a specified Layer 3 interface.

Syntax
show ip arp { gigabitEthernet port | port-channel port-channel-id | vlan id }

Parameter
port —— Specify the number of the routed port.
port-channel-id —— Specify the ID of the port channel.
id —— Specify the VLAN interface ID.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the ARP entry associated with VLAN interface 2 :
T2600G-28TS(config)# show ip arp vlan 2

14.6

show ip arp summary
Description
This show ip arp summary command is used to display the number of the
active ARP entries.

124

Syntax
show ip arp summary

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the number of the ARP entries:
T2600G-28TS(config)# show ip arp summary

125

Chapter 15 Binding Table Commands
You can bind the IP address, MAC address, VLAN and the connected Port number of the Host

together, which can be the condition for the ARP Inspection and IP verify source to filter the
packets.

15.1

ip source binding
Description
The ip source binding command is used to bind the IP address, MAC address,
VLAN ID and the Port number together manually. You can manually bind the

IP address, MAC address, VLAN ID and the Port number together in the

condition that you have got the related information of the Hosts in the LAN.
To delete the IP-MAC–VID-PORT entry from the binding table, use no ip

source binding index command.

Syntax
ip source binding hostname ip-addr mac-addr vlan vlan-id interface

gigabitEthernet port { none | arp-detection | ip-verify-source | both }

[ forced-source { arp-scanning | dhcp-snooping } ]
no ip source binding index idx

Parameter
hostname ——The Host Name, which contains 20 characters at most.
ip-addr —— The IP address of the Host.
mac-addr —— The MAC address of the Host.
vlan-id ——The VLAN ID needed to be bound, ranging from 1 to 4094.
port —— The number of port connected to the Host.
none | arp-detection | ip-verify-source | both ——The protect type for the

entry. “arp-detection” indicates ARP detection; “ip-verify-source” indicates IP
source filter; “none” indicates applying none; “both” indicates applying both.
126

forced-source —— The source of the binding entry can be specified as

“arp-scanning” or “dhcp-snooping”. It is multi-optional.

idx —— The entry number needed to be deleted. You can use the show ip
source binding command to get the idx. Pay attention that the entry number
is the actual number in the binding table which is not display in an arranged
order.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind an ACL entry with the IP 192.168.0.1, MAC 00:00:00:00:00:01, VLAN ID 2

and the Port number 5 manually. And then enable the entry for the ARP
detection:

T2600G-28TS(config)#ip

source

binding

host1

192.168.0.1

00:00:00:00:00:01 vlan 2 interface gigabitEthernet 1/0/5 arp-detection
Delete the IP-MAC–VID-PORT entry with the index 5:
T2600G-28TS(config)#no ip source binding index 5

15.2

ip dhcp snooping
Description
The ip dhcp snooping command is used to enable DHCP Snooping function

globally. To disable DHCP Snooping function globally, use no ip dhcp
snooping command. DHCP Snooping functions to monitor the process of the

Host obtaining the IP address from DHCP server, and record the IP address,

MAC address, VLAN and the connected Port number of the Host for

automatic binding. The switch can also propagate the control information and

127

the network parameters via the Option 82 field to provide more information
for the Host.

Syntax
ip dhcp snooping
no ip dhcp snooping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DHCP Snooping function globally:
T2600G-28TS(config)#ip dhcp snooping

15.3

ip dhcp snooping vlan
Description
The ip dhcp snooping vlan command is used to enable DHCP Snooping

function on a specified VLAN. To disable DHCP Snooping function on this
VLAN, use no ip dhcp snooping vlan command.

Syntax
ip dhcp snooping vlan vlan-range
no ip dhcp snooping vlan vlan-range

Parameter
vlan-range —— Specify the VLANs to enable the DHCP snooping function, in

the format of 1-3, 5.

128

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DHCP Snooping function on VLAN 1,4,6-7:
T2600G-28TS(config)#ip dhcp snooping vlan 1,4,6-7

15.4

ip dhcp snooping information option

Note: Only T2600G-18TS and T2600G-52TS support this command. To enable the option

82 function on a specified port/port channel for T2600G-28TS and T2600G-28MPS, refer to
50.3 ip dhcp l2relay information option.

Description
The ip dhcp snooping information option command is used to enable the
Option 82 function of DHCP Snooping on a specified port/port channel. To
disable the Option 82 function, use no ip dhcp snooping information option
command.

Syntax
ip dhcp snooping information option
no ip dhcp snooping information option

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
129

Example
Enable the Option 82 function of DHCP Snooping on port 1/0/1:
T2600G-52TS(config)#interface gigabitEthernet 1/0/1
T2600G-52TS(config-if)#ip dhcp snooping information option

15.5

ip dhcp snooping information strategy

Note: Only T2600G-18TS and T2600G-52TS support this command. To specify the

operation for the Option 82 field of the DHCP request packets from the host on a specified

port/port channel for T2600G-28TS and T2600G-28MPS, refer to 50.4 ip dhcp l2relay
information strategy.

Description
The ip dhcp snooping information strategy command is used to specify the
operation for the Option 82 field of the DHCP request packets from the host
on a specified port/port channel. To restore to the default option, use no ip

dhcp snooping information strategy command.

Syntax
ip dhcp snooping information strategy strategy
no ip dhcp snooping information strategy

Parameter
strategy —— The operations for Option 82 field of the DHCP request packets
from the Host, including three types:

keep: Indicates to keep the Option 82 field of the packets. It is the default
option;

replace: Indicates to replace the Option 82 field of the packets with the
switch defined one;

drop: Indicates to discard the packets including the Option 82 field

130

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Replace the Option 82 field of the packets with the switch defined one and
then send out on port 1/0/1:

T2600G-52TS(config)#interface gigabitEthernet 1/0/1
T2600G-52TS(config-if)#ip dhcp snooping information strategy replace

15.6

ip dhcp snooping information format

Note: Only T2600G-18TS and T2600G-52TS support this command. To select the format

of option 82 sub-option value field on a specified port/port channel for T2600G-28TS and
T2600G-28MPS, refer to 50.5 ip dhcp l2relay information format.

Description
The ip dhcp snooping information format command is used to select the

format of option 82 sub-option value field on a specified port/port channel.
To restore to the default option, use no ip dhcp snooping information

format command.

Syntax
ip dhcp snooping information format { normal | private }
no ip dhcp snooping information format

Parameter
normal | private —— The format type of option 82 sub-option value field.
normal: Indicates that the format of sub-option value field is TLV
(type-length-value).

131

private: Indicates that the format of sub-option value field is the value you
configure for the related sub-option.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Select the format of option 82 sub-option value field as TLV
(type-length-value) on port 1/0/1:

T2600G-52TS(config)#interface gigabitEthernet 1/0/1
T2600G-52TS(config-if)#ip dhcp snooping information format normal

15.7

ip dhcp snooping information circuit-id

Note: Only T2600G-18TS and T2600G-52TS support this command. To specify the

customized Circuit ID for Option 82 on a specified port/port channel for T2600G-28TS and
T2600G-28MPS, refer to 50.6 ip dhcp l2relay information circuit-id.

Description
The ip dhcp snooping information circuit-id command is used to specify the

customized Circuit ID for Option 82 on a specified port/port channel. To clear
the circuit ID, use no ip dhcp snooping information circuit-id command.

Syntax
ip dhcp snooping information circuit-id string
no ip dhcp snooping information circuit-id

Parameter
string —— Enter the sub-option Circuit ID, which contains 64 characters at

most.

132

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable and configure the customized sub-option Circuit ID for the Option 82

as “tplink” on port 1/0/1:

T2600G-52TS(config)#interface gigabitEthernet 1/0/1
T2600G-52TS(config-if)#ip dhcp snooping information circuit-id tplink

15.8

ip dhcp snooping information remote-id

Note: Only T2600G-18TS and T2600G-52TS support this command. To specify the

customized Remote ID for Option 82 on a specified port/port channel for T2600G-28TS and
T2600G-28MPS, refer to 50.7 ip dhcp l2relay information remote-id.

Description
The ip dhcp snooping information remote-id command is used to specify

the customized Remote ID for Option 82 on a specified port/port channel. To

clear the Remote ID, use no ip dhcp snooping information remote-id
command.

Syntax
ip dhcp snooping information remote-id string
no ip dhcp snooping information remote-id

Parameter
string —— Enter the sub-option Remote ID, which contains 64 characters at

most.

133

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the customized sub-option Remote ID for the Option 82 as tplink

on port 1/0/1:

T2600G-52TS(config)#interface gigabitEthernet 1/0/1
T2600G-52TS(config-if)#ip dhcp snooping information remote-id tplink

15.9

ip dhcp snooping trust
Description
The ip dhcp snooping trust command is used to configure a port to be a

Trusted Port. Only the Trusted Port can receive the DHCP packets from
DHCP servers. To turn the port back to a distrusted port, use no ip dhcp
snooping trust command.

Syntax
ip dhcp snooping trust
no ip dhcp snooping trust

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

134

Example
Configure the Gigabit Ethernet port 1/0/2 to be a Trusted Port:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ip dhcp snooping trust

15.10 ip dhcp snooping mac-verify
Description
The ip dhcp snooping mac-verify command is used to enable the MAC

Verify feature. To disable the MAC Verify feature, use no ip dhcp snooping
mac-verify command. There are two fields of the DHCP packet containing

the MAC address of the Host. The MAC Verify feature is to compare the two
fields and discard the packet if the two fields are different.

Syntax
ip dhcp snooping mac-verify
no ip dhcp snooping mac-verify

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the MAC Verify feature for the Gigabit Ethernet port 10/2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ip dhcp snooping mac-verify

135

15.11 ip dhcp snooping limit rate
Description
The ip dhcp snooping limit rate command is used to enable the Flow Control

feature for the DHCP packets. The excessive DHCP packets will be discarded.
To restore to the default configuration, use no ip dhcp snooping limit rate

command.

Syntax
ip dhcp snooping limit rate value
no ip dhcp snooping limit rate

Parameter
value —— The value of Flow Control. The options are 5/10/15/20/25/30
(packet/second). The default value is 0, which stands for “disable”.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the Flow Control of GigabitEthernet port 2 as 20 pps:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ip dhcp snooping limit rate 20

15.12 ip dhcp snooping decline rate
Description
The ip dhcp snooping decline rate command is used to enable the Decline

Protect feature and configure the rate limit on DHCP Decine packets. The
136

excessive DHCP Decline packets will be discarded. To disable the Decline
Protect feature, use no ip dhcp snooping decline rate command.

Syntax
ip dhcp snooping decline rate value
no ip dhcp snooping decline rate

Parameter
value —— Specify the rate limit of DHCP Decline packets, and the optional

values are 0, 5, 10, 15, 20, 25 and 30 (units:packet/second). It default value is
0, which stands for “disable”.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the rate limit of DHCP Decline packets as 20 packets per second
on Gigabit Ethernet port 1/0/2:

T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ip dhcp snooping decline 20

15.13 ip dhcp snooping max-entries
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The ip dhcp snooping max-entries command is used to configure the

maximum number of entries that can be learned on a port via DHCP Snooping.

137

To restore to the default setting, use no ip dhcp snooping max-entries
command.

Syntax
ip dhcp snooping max-entries value
no ip dhcp snooping max-entries

Syntax
value —— Enter the value of maximum number of entries that can be learned
on the port via DHCP Snooping.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the maximum number of entries that can be learned on port 1 as
100:

T2600G-28TS(config)#interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#ip dhcp snooping max-entries 100

15.14 show ip source binding
Description
The show ip source binding command is used to display the IP-MAC-VID-

PORT binding table.

Syntax
show ip source binding

Command Mode
Privileged EXEC Mode and Any Configuration Mode
138

Privilege Requirement
None.

Example
Display the IP-MAC-VID-PORT binding table:
T2600G-28TS(config)#show ip source binding

15.15 show ip dhcp snooping
Description
The show ip dhcp snooping command is used to display the running status
of DHCP Snooping.

Syntax
show ip dhcp snooping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the running status of DHCP Snooping:
T2600G-28TS#show ip dhcp snooping

15.16 show ip dhcp snooping interface
Description
The show ip dhcp snooping interface command is used to display the DHCP
Snooping configuration of a desired Gigabit Ethernet port/port channel or of
all Ethernet ports/port channels.

139

Syntax
show ip dhcp snooping interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DHCP Snooping configuration of all Ethernet ports and port

channels:

T2600G-28TS#show ip dhcp snooping interface
Display the DHCP Snooping configuration of Gigabit Ethernet port 1/0/5:
T2600G-28TS#show ip dhcp snooping interface gigabitEthernet 1/0/5

15.17 show ip dhcp snooping information interface
Note: Only T2600G-18TS and T2600G-52TS support this command. To display the DHCP

l2relay configuration of a desired port/port channel or of all ports/port channels for
T2600G-28TS and T2600G-28MPS, refer to 50.9 show ip dhcp l2relay interface.

Description
The show ip dhcp snooping information interface command is used to
display the DHCP snooping option 82 configuration of a desired port/port

channel or of all ports/port channels.

140

Syntax
show ip dhcp snooping information interface [ gigabitEthernet port |

port-channel port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DHCP snooping option 82 configuration of all Ethernet ports and
port channels:

T2600G-52TS#show ip dhcp snooping information interface
Display the DHCP snooping option 82 configuration of Gigabit Ethernet port

1/0/5:

T2600G-52TS#show ip dhcp snooping information interface
gigabitEthernet 1/0/5

141

Chapter 16 IPv6 Binding Table Commands
You can bind the IPv6 address, MAC address, VLAN and the connected Port number of the

Host together, which can be the condition for the ND Detection and IPv6 Source Guard to filter
the packets.

16.1

ipv6 source binding
Description
The ipv6 source binding command is used to bind the IPv6 address, MAC
address, VLAN ID and the Port number together manually. You can manually

bind the IPv6 address, MAC address, VLAN ID and the Port number together
in the condition that you have got the related information of the Hosts in the

LAN. To delete the IPv6-MAC–VID-PORT entry from the binding table, use no

ipv6 source binding index command.

Syntax
ipv6 source binding hostname ipv6-addr mac-addr vlan vlan-id interface
gigabitEthernet port { none | nd-detection | ipv6-verify-source | both }

no ipv6 source binding index idx

Parameter
hostname ——The Host Name, which contains 20 characters at most.
ipv6-addr —— The IPv6 address of the Host.
mac-addr —— The MAC address of the Host.
vlan-id ——The VLAN ID needed to be bound, ranging from 1 to 4094.
port —— The number of port connected to the Host.
none | nd-detection | ipv6-verify-source | both ——The protect type for the

entry. “nd-detection” indicates ND Detection; “ipv6-verify-source” indicates

IPv6 Source Guard; “none” indicates applying none; “both” indicates applying
both.

142

idx —— The entry number needed to be deleted. You can use the show ipv6

source binding command to get the idx. Pay attention that the entry number
is the actual number in the binding table which is not display in an arranged
order.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind an ACL entry with the IP 2001::1, MAC 00:00:00:00:00:01, VLAN ID 2 and
the Port number 5 manually. And then enable the entry for the ND Detection:
T2600G-28TS(config)#ipv6

source

binding

host1

2001::1

00:00:00:00:00:01 vlan 2 interface gigabitEthernet 1/0/5 nd-detection
Delete the IPv6-MAC–VID-PORT entry with the index 5:
T2600G-28TS(config)#no ipv6 source binding index 5

16.2

ipv6 dhcp snooping
Description
The ipv6 dhcp snooping command is used to enable DHCPv6 Snooping
function globally. To disable DHCPv6 Snooping function globally, use no ipv6

dhcp snooping command. DHCP Snooping functions to monitor the process
of the Host obtaining the IPv6 address from DHCPv6 server, and record the

IPv6 address, MAC address, VLAN and the connected Port number of the
Host for automatic binding.

Syntax
ipv6 dhcp snooping
143

no ipv6 dhcp snooping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DHCPv6 Snooping function globally:
T2600G-28TS(config)#ipv6 dhcp snooping

16.3

ipv6 dhcp snooping vlan
Description
The ipv6 dhcp snooping vlan command is used to enable DHCPv6 Snooping

function on a specified VLAN. To disable DHCPv6 Snooping function on this
VLAN, use no ipv6 dhcp snooping vlan command.

Syntax
ipv6 dhcp snooping vlan vlan-range
no ipv6 dhcp snooping vlan vlan-range

Parameter
vlan-range —— Specify the VLANs to enable the DHCPv6 snooping function,
in the format of 1-3, 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

144

Example
Enable the DHCPv6 Snooping function on VLAN 1,4,6-7:
T2600G-28TS(config)#ipv6 dhcp snooping vlan 1,4,6-7

16.4

ipv6 dhcp snooping trust
Description
The ipv6 dhcp snooping trust command is used to configure a port to be a

Trusted Port. Only the Trusted Port can forward the DHCPv6 packets from

DHCPv6 servers. To turn the port back to a distrusted port, use no ipv6 dhcp

snooping trust command.

Syntax
ipv6 dhcp snooping trust
no ipv6 dhcp snooping trust

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Gigabit Ethernet port 1/0/2 to be a Trusted Port:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ipv6 dhcp snooping trust

145

16.5

ipv6 nd snooping
Description
The ipv6 nd snooping command is used to enable ND Snooping function

globally. To disable ND Snooping function globally, use no ipv6 nd snooping
command. ND Snooping functions to monitor the process of the duplication

address detection, And record the IPv6 address, MAC address, VLAN and the
connected Port number of the Host for automatic binding.

Syntax
ipv6 nd snooping
no ipv6 nd snooping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the ND Snooping function globally:
T2600G-28TS(config)#ipv6 nd snooping

16.6

ipv6 nd snooping vlan
Description
The ipv6 nd snooping vlan command is used to enable ND Snooping

function on a specified VLAN. To disable ND Snooping function on this VLAN,
use no ipv6 nd snooping vlan command.

Syntax
ipv6 nd snooping vlan vlan-range
no ipv6 nd snooping vlan vlan-range
146

Parameter
vlan-range —— Specify the VLANs to enable the ND snooping function, in the
format of 1-3, 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the ND Snooping function on VLAN 1,4,6-7:
T2600G-28TS(config)#ipv6 nd snooping vlan 1,4,6-7

16.7

ipv6 nd snooping max-entries
Description
The ipv6 nd snooping max-entries command is used to specify the

maximum number of binding entries that are allow to be binded to a port. To
return the default, use no ipv6 nd snooping max-entries command.

Syntax
ipv6 nd snooping max-entries value
no ipv6 nd snooping max-entries

Parameter
value —— Specify the maximum number of ND snooping entries on this
interface.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

147

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the maximum number of binding entries from ND Snooping of
Gigabit Ethernet port 1/0/2 is 100:

T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ipv6 nd snooping max-entries 100

16.8

show ipv6 source binding
Description
The show ipv6 source binding command is used to display the
IPv6-MAC-VID- PORT binding table.

Syntax
show ipv6 source binding

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IPv6-MAC-VID-PORT binding table:
T2600G-28TS(config)#show ipv6 source binding

148

16.9

show ipv6 dhcp snooping
Description
The show ipv6 dhcp snooping command is used to display the running
status of DHCPv6 Snooping.

Syntax
show ipv6 dhcp snooping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the running status of DHCPv6 Snooping:
T2600G-28TS#show ipv6 dhcp snooping

16.10 show ipv6 dhcp snooping interface
Description
The show ipv6 dhcp snooping interface command is used to display the
DHCPv6 Snooping configuration of a desired Gigabit Ethernet port/port
channel or of all Ethernet ports/port channels.

Syntax
show ipv6 dhcp snooping interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

149

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DHCPv6 Snooping configuration of all Ethernet ports and port
channels:

T2600G-28TS#show ipv6 dhcp snooping interface
Display the DHCPv6 Snooping configuration of Gigabit Ethernet port 1/0/5:
T2600G-28TS#show ipv6 dhcp snooping interface gigabitEthernet 1/0/5

16.11 show ipv6 nd snooping
Description
The show ipv6 nd snooping command is used to display the running status

of ND Snooping.

Syntax
show ipv6 nd snooping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the running status of ND Snooping:
T2600G-28TS#show ipv6 nd snooping

150

16.12 show ipv6 nd snooping interface
Description
The show ipv6 nd snooping interface command is used to display the ND
Snooping configuration of a desired Gigabit Ethernet port/port channel or of
all Ethernet ports/port channels.

Syntax
show ipv6 nd snooping interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the ND Snooping configuration of all Ethernet ports and port
channels:

T2600G-28TS#show ipv6 nd snooping interface
Display the ND Snooping configuration of Gigabit Ethernet port 1/0/5:
T2600G-28TS#show ipv6 nd snooping interface gigabitEthernet 1/0/5

151

Chapter 17 IP Verify Source Commands
IP Verify Source is to filter the IP packets based on the IP-MAC Binding entries. Only the

packets matched to the IP-MAC Binding rules can be processed, which can enhance the

bandwidth utility.

17.1

ip verify source
Description
The ip verify source command is used to configure the IP Verify Source
mode for a specified port. To disable the IP Verify Source function, use no ip
verify source command.

Syntax
ip verify source { sip+mac }
no ip verify source

Parameter
sip+mac —— Security type. “sip+mac” indicates that only the packets with its

source IP address, source MAC address and port number matched to the
IP-MAC binding rules can be processed.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IP Verify Source function for Gigabit Ethernet ports 5-10.

Configure that only the packets with its source IP address, source MAC

152

address and port number matched to the IP-MAC binding rules can be
processed:

T2600G-28TS(config)#interface range gigabitEthernet 1/0/5-10
T2600G-28TS(config-if-range)#ip verify source sip+mac

17.2

show ip verify source

Description
The show ip verify source command is used to display the IP Verify Source
configuration information.

Syntax
show ip verify source

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IP Verify Source configuration information:
T2600G-28TS(config)#show ip verify source

17.3

show ip verify source interface
Description
The show ip verify source interface command is used to display the IP verify
source configuration of a desired Gigabit Ethernet port.

Syntax
show ip verify source interface gigabitEthernet port

153

Parameters
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IP verify source configuration of Gigabit Ethernet port 1/0/5:
T2600G-28TS#show ip verify source interface gigabitEthernet 1/0/5

154

Chapter 18 IPv6 Verify Source Commands
IPv6 Verify Source is to filter the IPv6 packets based on the IPv6-MAC Binding entries. Only the
packets matched to the IPv6-MAC Binding rules can be processed, which can enhance the

bandwidth utility.

Before configuring IPv6 Verify Source feature, you should configure the SDM template as
“enterpriseV6” and save your configurations. For more information about SDM configuration,
refer to sdm prefer.

18.1

ipv6 verify source
Description
The ipv6 verify source command is used to configure the IPv6 Verify Source

mode for a specified port. To disable the IPv6 Verify Source function, use no
ipv6 verify source command.

Syntax
ipv6 verify source { sipv6+mac }
no ipv6 verify source

Parameter
sipv6+mac —— Security type. “sipv6+mac” indicates that only the packets

with its source IPv6 address, source MAC address and port number matched
to the IPv6-MAC binding rules can be processed.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

155

Example
Enable the IPv6 Verify Source function for Gigabit Ethernet ports 5-10.
Configure that only the packets with its source IPv6 address, source MAC

address and port number matched to the IPv6-MAC binding rules can be

processed:

T2600G-28TS(config)#interface range gigabitEthernet 1/0/5-10
T2600G-28TS(config-if-range)#ipv6 verify source sipv6+mac

18.2

show ipv6 verify source

Description
The show ipv6 verify source command is used to display the IPv6 Verify

Source configuration information.

Syntax
show ipv6 verify source

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IPv6 Verify Source configuration information:
T2600G-28TS(config)#show ipv6 verify source

18.3

show ipv6 verify source interface
Description
The show ipv6 verify source interface command is used to display the IPv6
verify source configuration of a desired Gigabit Ethernet port.
156

Syntax
show ipv6 verify source interface gigabitEthernet port

Parameters
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IPv6 verify source configuration of Gigabit Ethernet port 1/0/5:
T2600G-28TS#show ipv6 verify source interface gigabitEthernet 1/0/5

157

Chapter 19 ND Detection Commands
The ND Detection feature allows the switch to detect the ND packets based on the binding

entries in the IPv6-MAC Binding Table and filter out the illegal ND packets. Before configuring

ND Detection, complete IPv6-MAC Binding configuration. For details, refer to IPv6-MAC
Binding Configurations.

19.1

ipv6 nd detection
Description
The ipv6 nd detection command is used to enable the ND Detection function
globally. To disable the ND Detection function, use no ipv6 nd detection
command.

Syntax
Ipv6 nd detection
no ipv6 nd detection

Command Mode
Global Configuration Mode

Example
Enable the ND Detection function globally:
T2600G-28TS(config)#ipv6 nd detection

19.2

ipv6 nd detection vlan
Description
The ipv6 nd detection vlan command is used to enable ND Detection

function on a specified VLAN. To disable ND Detection function on this VLAN,
use no ipv6 nd detection vlan command.

158

Syntax
ipv6 nd detection vlan vlan-range
no ipv6 nd detection vlan vlan-range

Parameter
vlan-range ——Enter the vlan range in the format of 1-3, 5.

Command Mode
Global Configuration Mode

Example
Enable the ND Detection function on VLAN 1,4,6-7:
T2600G-28TS(config)#ipv6 nd detection vlan 1,4,6-7

19.3

ipv6 nd detection trust
Description
The ipv6 nd detection trust command is used to configure the port for which
the ND Detection function is unnecessary as the Trusted Port. To clear the

Trusted Port list, use no ipv6 nd detection trust command .The specific port,
such as up-linked port, routing port and LAG port, should be set as Trusted

Port. To ensure the normal communication of the switch, configure the ND
Detection Trusted Port before enabling the ND Detection function.

Syntax
Ipv6 nd detection trust
no ipv6 nd detection trust

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet/ interface port-channel / interface range port-channel)

159

Example
Configure the Gigabit Ethernet ports 1/0/2-5 as the Trusted Port:
T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-5
T2600G-28TS(config-if-range)#ipv6 nd detection trust

19.4

show ipv6 nd detection
Description
The show ipv6 nd detection command is used to display the ND detection
global configuration including the enable/disable status.

Syntax
show ipv6 nd detection

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Example
Display the ND Detection configuration globally:
T2600G-28TS(config)#show ipv6 nd detection

19.5

show ipv6 nd detection interface
Description
The show ipv6 nd detection interface command is used to display the
interface configuration of ND Detection.

Syntax
show ipv6 nd detection interface[ gigabitEthernet port | port-channel

port-channel-id ]

160

Parameter
port ——The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Example
Display the configuration of Gigabit Ethernet port 1/0/1:
T2600G-28TS(config)#show ipv6 nd detection interface gigabitEthernet
1/0/1
Display the configuration of all Ethernet ports:
T2600G-28TS(config)#show ipv6 nd detection interface

161

Chapter 20 ARP Inspection Commands
ARP (Address Resolution Protocol) Detect function is to protect the switch from the ARP
cheating, such as the Network Gateway Spoofing and Man-In-The-Middle Attack, etc.

20.1

ip arp inspection(global)
Description
The ip arp inspection command is used to enable the ARP Detection
function globally. To disable the ARP Detection function, use no ip arp
detection command.

Syntax
ip arp inspection
no ip arp inspection

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the ARP Detection function globally:
T2600G-28TS(config)#ip arp inspection

20.2

ip arp inspection trust
Description
The ip arp inspection trust command is used to configure the port for which
the ARP Detect function is unnecessary as the Trusted Port. To clear the

Trusted Port list, use no ip arp detection trust command .The specific ports,
162

such as up-linked port and routing port and LAG port, should be set as

Trusted Port. To ensure the normal communication of the switch, configure
the ARP Trusted Port before enabling the ARP Detect function.

Syntax
ip arp inspection trust
no ip arp inspection trust

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Gigabit Ethernet ports 1/0/2-5 as the Trusted Port:
T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-5
T2600G-28TS(config-if-range)#ip arp inspection trust

20.3

ip arp inspection(interface)
Description
The ip arp inspection command is used to enable the ARP Defend function.

To disable the ARP detection function, use no ip arp inspection command.
ARP Attack flood produces lots of ARP Packets, which will occupy the
bandwidth and slow the network speed extremely. With the ARP Defend
enabled, the switch can terminate receiving the ARP packets for 300 seconds

when the transmission speed of the legal ARP packet on the port exceeds the
defined value so as to avoid ARP Attack flood.

Syntax
ip arp inspection
163

no ip arp inspection

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the arp defend function for the Gigabit Ethernet ports 1/0/2-6:
T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-6
T2600G-28TS(config-if-range)#ip arp inspection

20.4

ip arp inspection limit-rate
Description
The ip arp inspection limit-rate command is used to configure the ARP

speed of a specified port. To restore to the default speed, use no ip arp
inspection limit-rate command.

Syntax
ip arp inspection limit-rate value
no ip arp inspection limit-rate

Parameter
value ——The value to specify the maximum amount of the received ARP
packets per second, ranging from 10 to 100 in pps(packet/second). By
default, the value is 15.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

164

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the maximum amount of the received ARP packets per second as
50 pps for Gigabit Ethernet port 5:

T2600G-28TS(config)#interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)#ip arp inspection limit-rate 50

20.5

ip arp inspection recover
Description
The ip arp inspection recover command is used to restore a port to the ARP
transmit status from the ARP filter status.

Syntax
ip arp inspection recover

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Restore Gigabit Ethernet port 1/0/5 to the ARP transmit status:
T2600G-28TS(config)#interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)#ip arp inspection recover

165

20.6

show ip arp inspection
Description
The show ip arp inspection command is used to display the ARP detection
global configuration including the enable/disable status and the Trusted Port
list.

Syntax
show ip arp inspection

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the ARP detection configuration globally:
T2600G-28TS(config)#show ip arp inspection

20.7

show ip arp inspection interface
Description
The show ip arp inspection interface command is used to display the
interface configuration of ARP detection.

Syntax
show ip arp inspection interface [ gigabitEthernet port ]

Parameter
port ——The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode
166

Privilege Requirement
None.

Example
Display the configuration of Gigabit Ethernet port 1/0/1:
T2600G-28TS(config)#show ip arp inspection interface gigabitEthernet
1/0/1
Display the configuration of all Ethernet ports:
T2600G-28TS(config)#show ip arp inspection interface

20.8

show ip arp inspection statistics
Description
The show ip arp inspection statistics command is used to display the

number of the illegal ARP packets received.

Syntax
show ip arp inspection statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the number of the illegal ARP packets received:
T2600G-28TS(config)#show ip arp inspection statistics

167

20.9

clear ip arp inspection statistics
Description
The clear ip arp inspection statistics command is used to clear the statistic
of the illegal ARP packets received.

Syntax
clear ip arp inspection statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear the statistic of the illegal ARP packets received:
T2600G-28TS(config)#clear ip arp inspection statistics

168

Chapter 21 DoS Defend Commands
DoS (Denial of Service) Attack is to occupy the network bandwidth maliciously by the network
attackers or the evil programs sending a lot of service requests to the Host. With the DoS

Defend enabled, the switch can analyze the specific field of the received packets and provide
the defend measures to ensure the normal working of the local network.

21.1

ip dos-prevent
Description
The ip dos-prevent command is used to enable the DoS defend function
globally. To disable the DoS defend function, use no ip dos-prevent

command.

Syntax
ip dos-prevent
no ip dos-prevent

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DoS defend function globally:
T2600G-28TS(config)#ip dos-prevent

169

21.2

ip dos-prevent type
Description
The ip dos-prevent type command is used to select the DoS Defend Type.
To disable the corresponding Defend Type, use no ip dos-prevent type

command.

Syntax
ip dos-prevent type { land | scan-synfin | xma-scan | null-scan |

port-less-1024 | blat | ping-flood | syn-flood | win-nuke }

no ip dos-prevent type { land | scan-synfin | xma-scan | null-scan |

port-less-1024 | blat | ping-flood | syn-flood | win-nuke }

Parameter
land —— Land attack.
scan-synfin —— Scan SYNFIN attack.
xma-scan —— Xma Scan attack.
null-scan —— NULL Scan attack.
port-less-1024 ——The SYN packets whose Source Port less than 1024.
blat —— Blat attack.
ping-flood —— Ping flooding attack. With the ping flood attack enabled, the

switch will limit automatically the forwarding speed of ping packets to 512K
when attacked by ping flood.

syn-flood —— SYN/SYN-ACK flooding attack. With the syn-flood attack

enabled, the switch will limit automatically the forwarding speed of ping
packets to 512K when attacked by syn-flood.
win-nuke —— winNuke attack.

Command Mode
Global Configuration Mode
170

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DoS Defend Type named Land attack:
T2600G-28TS(config)#ip dos-prevent type land

21.3

show ip dos-prevent
Description
The show ip dos-prevent command is used to display the DoS information of
the detected DoS attack, including enable/disable status, the DoS Defend
Type, the count of the attack, etc.

Syntax
show ip dos-prevent

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DoS information of the detected DoS attack globally:
T2600G-28TS(config)#show ip dos-prevent

171

Chapter 22 IEEE 802.1X Commands
IEEE 802.1X function is to provide an access control for LAN ports via the authentication. An
802.1X system include three entities: supplicant, authenticator and authentication server.



Supplicant: the device that requests access to the LAN.

Authentication server: performs the actual authentication of the supplicant. It validates the

identity of the supplicant and notifies the authenticator whether or not the supplicant is
authorized to access the LAN.


Authenticator: controls the physical access to the network based on the authentication

status of the supplicant. It is usually an 802.1X-supported network device, such as this

TP-Link switch. It acts as an intermediary (proxy) between the supplicant and the

authentication server, requesting identity information from the supplicant, verifying that
information with the authentication server, and relaying a response to the supplicant.

This chapter handles with the authentication process between the supplicant and the switch.

To realize the authentication and accounting function, you should also enbable the AAA
function and configure the RADIUS server. Go to Chapter 44 AAA Commands for more details.

22.1

dot1x system-auth-control
Description
The dot1x system-auth-control command is used to enable the IEEE 802.1X

function globally. To disable the IEEE 802.1X function, use no dot1x
system-auth-control command.

Syntax
dot1x system-auth-control
no dot1x system-auth-control

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
172

Example
Enable the IEEE 802.1X function:
T2600G-28TS(config)#dot1x system-auth-control

22.2

dot1x handshake
Description
The dot1x handshake command is used enable the handshake feature. The

handshake feature is used to detect the connection status between the

TP-Link 802.1x supplicant and the switch. disable the handshake feature if
you are using a non-TP-Link 802.1x-compliant client software. This feature is

enabled by default.

Syntax
dot1x handshake
no dot1x handshake

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Disable the 802.1X handshake function:
T2600G-28TS(config)# no dot1x handshake

22.3

dot1x auth-method
Description
The dot1x auth-method command is used to configure the Authentication
Method of IEEE 802.1X and the default 802.1x authentication method is “eap”.
173

To restore to the default 802.1x authentication method, use no dot1x
auth-method command.

Syntax
dot1x auth-method { pap | eap }
no dot1x auth-method

Parameter
pap | eap ——Authentication Methods.
pap: EAP termination mode. IEEE 802.1X authentication system uses
extensible authentication protocol (EAP) to exchange information between

the switch and the client. The EAP packets are terminated at the switch and
repackaged in the Password Authentication Protocol (PAP) packets, and then
transferred to the RADIUS server.

eap: EAP relay mode. IEEE 802.1X authentication system uses extensible

authentication protocol (EAP) to exchange information between the switch

and the client. The EAP protocol packets with authentication data are

encapsulated in the advanced protocol (such as RADIUS) packets and
transmitted to the authentication server.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Authentication Method of IEEE 802.1X as “pap”:
T2600G-28TS(config)#dot1x auth-method pap

174

22.4

dot1x accounting
Description
The dot1x accounting command is used to enable the IEEE 802.1X

accounting function globally. To disable the IEEE 802.1X accounting function,
use no dot1x accounting command.

Syntax
dot1x accounting
no dot1x accounting

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the enable the IEEE 802.1X accounting function globally:
T2600G-28TS(config)#dot1x accounting

22.5

dot1x vlan-assignment
Description
The dot1x vlan-assignment command is used to enable the 802.1X VLAN

assignment feature. 802.1x VLAN assignment is a technology allowing the
RADIUS server to send the VLAN assignment to the port when the port is
authenticated.

If the assigned VLAN does not exist on the switch, the switch will create the

related VLAN automatically, add the authenticated port to the VLAN and
change the PVID based on the assigned VLAN.

If the assigned VLAN exists on the switch, the switch will directly add the

authenticated port to the related VLAN and change the PVID instead of
175

creating a new VLAN.

If no VLAN is supplied by the RADIUS server or if 802.1x authentication is
disabled, the port will be in its original VLAN after successful authentication.

To disable the 802.1X VLAN assignment feature, use no dot1x
vlan-assignment command.

Syntax
dot1x vlan-assignment
no dot1x vlan-assignment

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the 802.1X VLAN assignment feature globally:
T2600G-28TS(config)# dot1x vlan-assignment

22.6

dot1x guest-vlan(global)
Description
The dot1x guest-vlan command is used to enable the Guest VLAN function

globally. To disable the Guest VLAN function, use no dot1x guest-vlan

command.

Syntax
dot1x guest-vlan vid
no dot1x guest-vlan

176

Parameter
vid —— The VLAN ID needed to enable the Guest VLAN function, ranging
from 2 to 4094. The supplicants in the Guest VLAN can access the specified

network source.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Guest VLAN function for VLAN 5:
T2600G-28TS(config)#dot1x guest-vlan 5

22.7

dot1x quiet-period
Description
The dot1x quiet-period command is used to enable the quiet-period function.

To disable the function, use no dot1x quiet-period command.

Syntax
dot1x quiet-period [ time ]
no dot1x quiet-period

Parameter
time —— The length of the quiet-period time. If one user’s authentication fails,
its subsequent IEEE 802.1x authentication requests will not be processed
during the quiet-period time. It ranges from 1 to 999 seconds and the default

value is 10 seconds.

Command Mode
Global Configuration Mode
177

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the quiet-period function:
T2600G-28TS(config)#dot1x quiet-period
Enable the quiet-period function and set the quiet-period as 5 seconds:
T2600G-28TS(config)#dot1x quiet-period 5

22.8

dot1x timeout supplicant-timeout
Description
The dot1x timeout supplicant-timeout command is used to configure the

supplicant timeout. To restore to the default, use no dot1x timeout
supplicant-timeout command.

Syntax
dot1x timeout supplicant-timeout time
no dot1x timeout supplicant-timeout

Parameter
time ——The maximum time for the switch to wait for the response from

supplicant before resending a request to the supplicant., ranging from 1 to 9
in second. By default, it is 3 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

178

Example
Configure the supplicant timeout value as 5 seconds:
T2600G-28TS(config)#dot1x timeout supplicant-timeout 5

22.9

dot1x max-reauth-req
Description
The dot1x max-reauth-req command is used to configure the maximum
transfer times of the repeated authentication request when the server cannot
be connected. To restore to the default value, use no dot1x max-reauth-req

command.

Syntax
dot1x max-reauth-req times
no dot1x max-reauth-req

Parameter
times —— The maximum transfer times of the repeated authentication

request, ranging from 1 to 9 in times. By default, the value is 3.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the maximum transfer times of the repeated authentication
request as 5:

T2600G-28TS(config)#dot1x max-reauth-req 5

179

22.10 dot1x
Description
The dot1x command is used to enable the IEEE 802.1X function for a
specified port. To disable the IEEE 802.1X function for a specified port, use
no dot1x command.

Syntax
dot1x
no dot1x

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IEEE 802.1X function for the Gigabit Ethernet port 1:
T2600G-28TS(config)#interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#dot1x

22.11 dot1x guest-vlan(interface)
Description
The dot1x guest-vlan command is used to enable the guest VLAN function
for a specified port. To disable the Guest VLAN function for a specified port,
use no dot1x guest-vlan command. ensure that the Control Type of the

corresponding port is port-based before enabling the guest VLAN function
for it.

180

Syntax
dot1x guest-vlan
no dot1x guest-vlan

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Guest VLAN function for Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#dot1x guest-vlan

22.12 dot1x mab
Description
The dot1x mab command is used to enable the MAB (MAC-Based

Authentication Bypass) feature for the port. With MAB feature enabled, the
switch automatically sends the authentication server a RADIUS access
request frame with the client’s MAC address as the username and password.

It is also necessary to configure the RADIUS server with the client’s

information for authentication. You can enable this feature on IEEE 802.1x
ports connected to devices without 802.1X capability. For example, most

printers, IP phones and fax machines do not have 802.1X capability. To
disable the MAB feature for the port, use no dot1x mab command.

Syntax
dot1x mab
no dot1x mab

181

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the MAB feature for Gigabit Ethernet port 20:
T2600G-28TS(config)#interface gigabitEthernet 1/0/20
T2600G-28TS(config-if)#dot1x mab

22.13 dot1x port-control
Description
The dot1x port-control command is used to configure the Control Mode of
IEEE 802.1X for the specified port. By default, the control mode is “auto”. To
restore to the default configuration, use no dot1x port-control command.

Syntax
dot1x port-control {auto | authorized-force | unauthorized-force}
no dot1x port-control

Parameter
auto | authorized-force | unauthorized-force —— The Control Mode for the

port.

auto: In this mode, the port will normally work only after passing the 802.1X

Authentication.

authorized-force: In this mode, the port can work normally without passing

the 802.1X Authentication.

182

unauthorized-force: In this mode, the port is forbidden working for its fixed

unauthorized status.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure

the

Control

Mode

“authorized-force”:

for

Gigabit

Ethernet

port

20

as

T2600G-28TS(config)#interface gigabitEthernet 1/0/20
T2600G-28TS(config-if)#dot1x port-control authorized-force

22.14 dot1x port-method
Description
The dot1x port-method command is used to configure the control type of

IEEE 802.1X for the specified port. By default, the control type is “mac-based”.
To restore to the default configuration, use no dot1x port-method

command.

Syntax
dot1x port-method { mac-based | port-based }
no dot1x port-method

Parameter
mac-based | port-based ——The control type for the port.
mac-based: Any client connected to the port should pass the 802.1X
authentication for access.

183

port-based: All the clients connected to the port can access the network on
the condition that any one of the clients has passed the 802.1X
Authentication.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the Control Type for Gigabit Ethernet port 20 as “port-based”:
T2600G-28TS(config)#interface gigabitEthernet 1/0/20
T2600G-28TS(config-if)#dot1x port-method port-based

22.15 show dot1x global
Description
The show dot1x global command is used to display the global configuration
of 801.X.

Syntax
show dot1x global

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of 801.X globally:
T2600G-28TS(config)#show dot1x global
184

22.16 show dot1x interface
Description
The show dot1x interface command is used to display all ports or the
specified port’s configuration information of 801.X.

Syntax
show dot1x interface [ gigabitEthernet port ]

Parameter
port —— The Ethernet port number. If not specified, the information of all the

ports will be displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration information of 801.X for Gigabit Ethernet port 20:
T2600G-28TS(config)#show dot1x interface gigabitEthernet 1/0/20
Display the configuration information of 801.X for all Ethernet ports:
T2600G-28TS(config)#show dot1x interface

185

Chapter 23 PPPoE ID-Insertion Commands
The PPPoE ID-Insertion feature provides a way to extract a Vendor-specific tag as an identifier
for the authentication, authorization, and accounting (AAA) access requests on an Ethernet

interface. When enabled, the switch attaches a tag to the PPPoE discovery packets, which is

called the PPPoE Vendor-Specific tag and it contains a unique line identifier. There are two
formats of Vendor-specific tags: Circuit-ID format and Remote-ID format. The BRAS receives

the tagged packet, decodes the tag, and uses the Circuit-ID/Remote-ID field of that tag as a

NAS-Port-ID attribute in the RADIUS server for PPP authentication and AAA (authentication,
authorization,

and

Circuit-ID/Remote-ID

accounting)
tag

from

access

the

requests.

received

Session-confirmation packets from the BRAS.

23.1

The

PPPoE

switch

Active

will

Discovery

remove
Offer

the

and

pppoe id-insertion(global)
Description
The pppoe id-insertion command is used to enable the PPPoE ID-Insertion

function globally. To disable the PPPoE ID-Insertion function, use no pppoe

id-insertion command.

Syntax
pppoe id-insertion
no pppoe id-insertion

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the PPPoE ID-Insertion function:
T2600G-28TS(config)# pppoe id-insertion
186

23.2

pppoe circuit-id(interface)
Description
The pppoe circuit-id command is used to enable the PPPoE Circuit-ID

Insertion function for a specified port. To disable the PPPoE Circuit-ID
Insertion function on a specified port, use no pppoe circuit-id command.

Syntax
pppoe circuit-id
no pppoe circuit-id

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the PPPoE Circuit-ID Insertion function for the Gigabit Ethernet port

1/0/1:

T2600G-28TS (config)# interface gigabitEthernet 1/0/1
T2600G-28TS (config-if)# pppoe circuit-id

23.3

pppoe circuit-id type
Description
The pppoe circuit-id type command is used to configure the type of PPPoE

Circuit-ID for a specified port. By default, the PPPoE Circuit-ID type is “ip”.

Syntax
pppoe circuit-id type { mac | ip | udf [Value] | udf-only [Value] }

187

Parameter
mac | ip | udf | udf-only —— The type of PPPoE Circuit-ID for the port.
mac: The MAC address of the switch will be used to encode the Circuit-ID

option.

ip: The IP address of the switch will be used to encode the Circuit-ID option.
This is the default value.

udf: A user specified string with the maximum length of 40 characters will be
used to encode the Circuit-ID option.

udf-only: Only the user specified string with the maximum length of 40 will be

used to encode the Circuit-ID option.

Value —— The value of udf/udf-only. The maximum length is 40 characters.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the type of PPPoE Circuit-ID as “mac” for the Gigabit Ethernet port

1/0/1:

T2600G-28TS (config)# interface gigabitEthernet 1/0/1
T2600G-28TS (config-if)# pppoe circuit-id type mac

23.4

pppoe remote-id
Description
The pppoe remote-id command is used to enable the PPPoE Remote-ID

Insertion and configure the Remote-ID value for a specified port. To disable
188

the PPPoE Remote-ID Insertion function on a specified port, use no pppoe

remote-id command. By default, the PPPoE Remote-ID Insertion is disabled.

Syntax
pppoe remote-id [Value]
no pppoe remote-id

Parameter
Value —— The value of UDF. The maximum length is 40 characters. If not
specified, the default value will be the PPPoE client’s MAC address.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the remote-ID as “mac” for the Gigabit Ethernet port 1/0/1:
T2600G-28TS (config)# interface gigabitEthernet 1/0/1
T2600G-28TS (config-if)# pppoe remote-id mac

23.5

show pppoe id-insertion global
Description
The show pppoe id-insertion global command is used to display the global
configuration of PPPoE Circuit-ID Insertion function.

Syntax
show pppoe id-insertion global

189

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of PPPoE Circuit-ID Insertion function globally:
T2600G-28TS # show pppoe circuit-id global

23.6

show pppoe id-insertion interface
Description
The show pppoe id-insertion interface command is used to display all ports’
or the specified port’s configuration information of PPPoE Circuit-ID Insertion

function.

Syntax
show pppoe id-insertion interface [gigabitEthernet port ]

Parameter
port —— The Fast/Gigabit Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration information of PPPoE Circuit-ID Insertion function

of all Ethernet ports:

T2600G-28TS# show pppoe id-insertion interface

190

Display the configuration of PPPoE Circuit-ID Insertion function of the Gigabit

Ethernet port 1/0/1 :

T2600G-28TS# show pppoe id-insertion interface gigabitEthernet 1/0/1

191

Chapter 24 System Log Commands
The log information will record the settings and operation of the switch respectively for you to
monitor operation status and diagnose malfunction.

24.1

logging buffer
Description
The logging buffer command is used to store the system log messages to an

internal buffer. To disable the log buffer function, use the no logging buffer
command. Local Log is the system log information saved in the switch. It has

two output channels, that is, it can be saved to two different positions, log
buffer and log flash memory. The log buffer indicates the RAM for saving

system log and the information in the log buffer can be got by show logging

buffer command. It will be lost when the switch is restarted.

Syntax
logging buffer
no logging buffer

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the system log buffer:
T2600G-28TS(config)#logging buffer

192

24.2

logging buffer level
Description
The logging buffer level command is used to configure the severity level and
the status of the configuration input to the log buffer. To return to the default
configuration, use no logging buffer level command.

Syntax
logging buffer level level
no logging buffer level

Parameter
level —— Severity level of the log information output to each channel. There

are 8 severity levels marked with values 0-7. The smaller value has the higher

priority. Only the log with the same or smaller severity level value will be

output. By default, it is 6 indicating that the log information with level 0-6 will

be saved in the log buffer.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Set the severity level as 5:
T2600G-28TS(config)#logging buffer level 5

24.3

logging file flash
Description
The logging file flash command is used to store the log messages in a file in

the flash on the switch. To disable the log file flash function, use no logging

file flash command. This function is disabled by default. The log file flash
193

indicates the flash sector for saving system log. The information in the log file

of the flash will not be lost after the switch is restarted and can be got by the
show logging flash command.

Syntax
logging file flash
no logging file flash

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the log file flash function:
T2600G-28TS(config)#logging file flash

24.4

logging file flash frequency
Description
The logging file flash frequency command is used to specify the frequency
to synchronize the system log file in the log buffer to the flash. To resume the

default synchronizing frequency, use the no logging file flash frequency
command.

Syntax
logging file flash frequency { periodic periodic | immediate }
no logging file flash frequency

Parameter
periodic —— The frequency to synchronize the system log file in the log
buffer to the flash, ranging from 1 to 48 hours. By default, the synchronization
process takes place every 24 hours.
194

immediate

—— The system log file in the buffer will be synchronized to the

flash immediately. This option will reduce the life of the flash and is not
recommended.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the log file synchronization frequency as 10 hours:
T2600G-28TS(config)#logging file flash frequency periodic10

24.5

logging file flash level
Description
The logging file flash level command is used to specify the system log

message severity level. Messages will a severity level equal to or higher than
this value will be stored to the flash. To restore to the default level, use no
logging file flash level command.

Syntax
logging file flash level level
no logging file flash level

Parameter
level —— Severity level of the log message. There are 8 severity levels

marked with values 0-7. The smaller value has the higher priority. Only the log

with the same or smaller severity level value will be saved to the flash. By
default, it is 3 indicating that the log message marked with 0~3 will be saved

in the log flash.

Command Mode
Global Configuration Mode
195

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Save the log messages with their severities equal or higher than 7 to the
flash :

T2600G-28TS(config)#logging file flash level 7

24.6

logging host index
Description
The logging host index command is used to configure the Log Host. To clear

the configuration of the specified Log Host, use no logging host index

command. Log Host is to receive the system log from other devices. You can
remotely monitor the settings and operation status of other devices through
the log host.

Syntax
logging host index idx host-ip level
no logging host index idx

Parameter
idx —— The index of the log host. The switch supports 4 log hosts at most.
host-ip —— The IP for the log host.
level —— The severity level of the log information sent to each log host.

There are 8 severity levels marked with values 0-7. The smaller value has the

higher priority. Only the log with the same or smaller severity level value will
be sent to the corresponding log host. By default, it is 6 indicating that the log
information marked with 0~6 will be sent to the log host.

Command Mode
Global Configuration Mode

196

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable log host 2 and set its IP address as 192.168.0.148, the level 5:
T2600G-28TS(config)# logging host index 2 192.168.0.148 5

24.7

logging console
Description
The logging console command is used to send the system logs to the
console port. To disable logging to the console, use no logging console
command. This function is enabled by default.

Syntax
logging console
no logging console

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable logging to the console port:
T2600G-28TS(config)# logging console

24.8

logging console level
Description
The logging console level command is used to limit messages logged to the

console port. System logs no higher than the set threshold level will be
197

displayed on the console port. To restore the threshold level to default value,
use no logging console level command.

Syntax
logging console level level
no logging monitor level

Parameter
level —— Severity level of the log information output to the console port.
There are 8 severity levels marked with values 0-7. The smaller value has the

higher priority. Only the log with the same or smaller severity level value will
be output to the terminal devices. By default, it is 5 indicating that all the log
information between level 0-5 will be output to the terminal devices.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Output the log information with severity levels between 0-7 to the console
port:

T2600G-28TS(config)# logging console level 7

24.9

logging monitor
Description
The logging monitor command is used to display the system logs on the
terminal devices. To disable logging to the terminal, use no logging monitor
command. This function is enabled by default.

Syntax
logging monitor
198

no logging monitor

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Disable logging to the terminal devices:
T2600G-28TS(config)# no logging monitor

24.10 logging monitor level
Description
The logging monitor level command is used to limit messages logged to the

terminal devices. System logs no higher than the set threshold level will be
displayed on the terminal devices. To restore the threshold level to default

value, use no logging monitor level command.

Syntax
logging monitor level level
no logging monitor level

Parameter
level —— Severity level of the log information output to the terminal devices.

There are 8 severity levels marked with values 0-7. The smaller value has the

higher priority. Only the log with the same or smaller severity level value will
be output to the terminal devices. By default, it is 5 indicating that all the log
information between level 0-5 will be output to the terminal devices.

Command Mode
Global Configuration Mode

199

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Output the log information with severity levels between 0-7 to the terminal
devices:

T2600G-28TS(config)# logging monitor level 7

24.11 clear logging
Description
The clear logging command is used to clear the information in the log buffer

and log file.

Syntax
clear logging [ buffer | flash ]

Parameter
buffer | flash —The output channels: buffer and flash. Clear the information of

the two channels, by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Clear the information in the log file:
T2600G-28TS(config)# clear logging buffer

200

24.12 show logging local-config
Description
The show logging local-config command is used to display the configuration

of the Local Log output to the console, the terminal, the log buffer and the log

file.

Syntax
show logging local-config

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of the Local Log:
T2600G-28TS(config)# show logging local-config

24.13 show logging loghost
Description
The show logging loghost command is used to display the configuration of
the log host.

Syntax
show logging loghost [ index ]

Parameter
index ——The index of the log host whose configuration will be displayed,
ranging from 1 to 4. Display the configuration of all the log hosts by default.

201

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of the log host 2:
T2600G-28TS(config)# show logging loghost 2

24.14 show logging buffer
Description
The show logging buffer command is used to display the log information in

the log buffer according to the severity level.

Syntax
show logging buffer [ level level ]

Parameter
level —— Severity level. There are 8 severity levels marked with values 0-7.

The information of levels with priority not lower than the select level will
display. Display all the log information in the log buffer by default.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the log information from level 0 to level 5 in the log buffer:
T2600G-28TS(config)# show logging buffer level 5

202

24.15 show logging flash
Description
The show logging flash command is used to display the log information in
the log file according to the severity level.

Syntax
show logging flash [ level level ]

Parameter
level —— Severity level. There are 8 severity levels marked with values 0-7.

The information of levels with priority not lower than the select level will
display. Display all the log information in the log file by default.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the log information with the level marked 0~3 in the log file:
T2600G-28TS(config)# show logging flash level 3

203

Chapter 25 SSH Commands
SSH (Security Shell) can provide the unsecured remote management with security and
powerful authentication to ensure the security of the management information.

25.1

ip ssh server
Description
The ip ssh server command is used to enable SSH function. To disable the
SSH function, use no ip ssh server command.

Syntax
ip ssh server
no ip ssh server

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the SSH function:
T2600G-28TS(config)# ip ssh server

25.2

ip ssh version
Description
The ip ssh version command is used to enable the SSH protocol version. To

disable the protocol version, use no ip ssh version command.

204

Syntax
ip ssh version { v1 | v2 }
no ip ssh version { v1 | v2 }

Parameter
v1 | v2 —— The SSH protocol version to be enabled. They represent SSH v1
and SSH v2 respectively.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable SSH v2:
T2600G-28TS(config)# ip ssh version v2

25.3

ip ssh algorithm
Description
The ip ssh algorithm command is used to configure the algorithm in SSH

function. To disable the specified algorithm, use no ip ssh algorithm

command.

Syntax
ip ssh algorithm { AES128-CBC | AES192-CBC | AES256-CBC | Blowfish-CBC

| Cast128-CBC | 3DES-CBC | HMAC-SHA1 | HMAC-MD5 }
no ip ssh algorithm

Parameter

AES128-CBC | AES192-CBC | AES256-CBC | Blowfish-CBC | Cast128-CBC |

3DES-CBC | HMAC-SHA1 | HMAC-MD5 —— Specify the SSH algorithm.
205

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the SSH algorithm as AES128-CBC:
T2600G-28TS(config)# ip ssh algorithm AES128-CBC

25.4

ip ssh timeout
Description
The ip ssh timeout command is used to specify the idle-timeout time of SSH.
To restore to the factory defaults, use ip ssh timeout command.

Syntax
ip ssh timeout value
no ip ssh timeout

Parameter
value —— The Idle-timeout time. During this period, the system will
automatically release the connection if there is no operation from the client. It
ranges from 1 to 120 in seconds. By default, this value is 120 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the idle-timeout time of SSH as 30 seconds:
206

T2600G-28TS(config)# ip ssh timeout 30

25.5

ip ssh max-client
Description
The ip ssh max-client command is used to specify the maximum number of
the connections to the SSH server. To return to the default configuration, use
no ip ssh max-client command.

Syntax
ip ssh max-client num
no ip ssh max-client

Parameter
num —— The maximum number of the connections to the SSH server. It
ranges from 1 to 5. By default, this value is 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the maximum number of the connections to the SSH server as 3:
T2600G-28TS(config)# ip ssh max-client 3

25.6

ip ssh download
Description
The ip ssh download command is used to download the SSH key file from

TFTP server.

207

Syntax
ip ssh download { v1 | v2 } key-file ip-address ip-addr

Parameter
v1 | v2 —— Select the type of SSH key to download, v1 represents SSH-1,
v2 represents SSH-2.

key-file —— The name of the key-file which is selected to download. The
length of the name ranges from 1 to 25 characters. The key length of the
downloaded file must be in the range of 512 to 3072 bits.

ip-addr —— The IP address of the TFTP server. Both IPv4 and IPv6 addresses
are supported, for example 192.168.0.1 or fe80::1234.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Download an SSH-1 type key file named ssh-key from TFTP server with the IP
address 192.168.0.148:

T2600G-28TS(config)#

ip

ssh

download

v1

ssh-key

ip-address

192.168.0.148
Download an SSH-1 type key file named ssh-key from TFTP server with the IP

address fe80::1234:

T2600G-28TS(config)# ip ssh download v1 ssh-key ip-address fe80::1234

25.7

remove public-key
Description
The remove public-key command is used to remove the SSH public key from
the switch.

208

Syntax
remove public-key { v1 | v2 }

Parameter
v1 | v2 —— Select the type of SSH public key, v1 represents SSH-1, v2

represents SSH-2.

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Remove the SSH-1 type public key from the switch:
T2600G-28TS# remove public-key v1

25.8

show ip ssh
Description
The show ip ssh command is used to display the global configuration of SSH.

Syntax
show ip ssh

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of SSH:
T2600G-28TS(config)# show ip ssh
209

Chapter 26 MAC Address Commands
MAC Address configuration can improve the network security by configuring the Port Security
and maintaining the address information by managing the Address Table.

26.1

mac address-table static
Description
The mac address-table static command is used to add the static MAC

address entry. To remove the corresponding entry, use no mac

address-table static command. The static address can be added or removed
manually, independent of the aging time. In the stable networks, the static

MAC address entries can facilitate the switch to reduce broadcast packets
and enhance the efficiency of packets forwarding remarkably.

Syntax
mac address-table static mac-addr vid vid interface gigabitEthernet port
no mac address-table static { mac-addr | vid vid | mac-addr vid vid |
interface gigabitEthernet port }

Parameter
mac-addr ——The MAC address of the entry you desire to add.
vid —— The VLAN ID number of your desired entry. It ranges from 1 to 4094.
port —— The Ethernet port number of your desired entry.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

210

Example
Add a static Mac address entry to bind the MAC address 00:02:58:4f:6c:23,
VLAN1 and port 1 together:

T2600G-28TS(config)# mac address-table static 00:02:58:4f:6c:23 vid 1
interface gigabitEthernet 1/0/1

26.2

mac address-table aging-time
Description
The mac address-table aging-time command is used to configure aging

time for the dynamic address. To return to the default configuration, use no
mac address-table aging-time command.

Syntax
mac address-table aging-time aging-time
no mac address-table aging-time

Parameter
aging-time —— The aging time for the dynamic address. The value of it can

be 0 or ranges from 10 to 630 seconds. When 0 is entered, the Auto Aging
function is disabled. It is 300 by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the aging time as 500 seconds:
T2600G-28TS(config)# mac address-table aging-time 500

211

26.3

mac address-table filtering
Description
The mac address-table filtering command is used to add the filtering

address entry. To delete the corresponding entry, use no mac address-table
filtering command. The filtering address function is to forbid the undesired

package to be forwarded. The filtering address can be added or removed
manually, independent of the aging time.

Syntax
mac address-table filtering mac-addr vid vid
no mac address-table filtering {[ mac-addr ] [ vid vid ]}

Parameter
mac-addr —— The MAC address to be filtered.
vid —— The corresponding VLAN ID of the MAC address. It ranges from 1 to
4094.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a filtering address entry of which VLAN ID is 1 and MAC address is
00:1e:4b:04:01:5d:

T2600G-28TS(config)# mac address-table filtering 00:1e:4b:04:01:5d vid 1

212

26.4

mac address-table notification
Description
The mac address-table notification command is used to configure global

settings of MAC address table notification.

Syntax
mac address-table notification { [ global-status enable | disable ]

[ table-full-status enable | disable ] [ interval time ] }

Parameter
global-status enable | disable —— Enable/Disable the notification function

globally.

table-full-status enable | disable —— Enable/Disable the MAC threshold

notification. With this feature enabled, a SNMP notification is generated and

sent to the network management system (NMS) when the threshold of the
switch’s MAC address table is reached or exceeded.

interval time —— Specify the notification trap interval between each set of
traps that are generated to the NMS. The interval ranges from 1 to 1000
seconds and it’s 1 second by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the global MAC address notification and table full notification, specify
the notification sending interval as 2 seconds:

T2600G-28TS(config)# mac address-table notification global-status
enable table-full-status enable interval 2

213

26.5

mac address-table max-mac-count
Description
The mac address-table max-mac-count command is used to configure the

Port Security. To return to the default configurations, use no mac

address-table max-mac-count command. Port Security is to protect the

switch from the malicious MAC address attack by limiting the maximum

number of the MAC addresses that can be learned on the port. The port with
Port Security feature enabled will learned the MAC address dynamically.

When the learned MAC address number reaches the maximum, the port will
stop learning. Therefore, the other devices with the MAC address unlearned
can not access to the network via this port.

Syntax
mac address-table max-mac-count { [ max-number num ] [ mode { dynamic |

static | permanent } ] [ status { forward | drop | disable } ] }

no mac address-table max-mac-count [ max-number | mode | status ]

Parameter
num —— The maximum number of MAC addresses that can be learned on
the port. It ranges from 0 to 64. By default this value is 64.

dynamic | static | permanent —— Learn mode for MAC addresses. There are
three modes, including Dynamic mode, Static mode and Permanent mode.

When Dynamic mode is selected, the learned MAC address will be deleted

automatically after the aging time. When Static mode is selected, the learned

MAC address will be out of the influence of the aging time and can only be

deleted manually. The learned entries will be cleared after the switch is
rebooted. When permanent mode is selected, the learned MAC address will

be out of the influence of the aging time and can only be deleted manually too.
However, the learned entries will be saved even the switch is rebooted.

status —— Select the action to be taken when the number of the MAC

addresses reaches the maximum learning number on the port. By default this
function is disabled.

214

•
forward: The packets will be forward but not be learned when learned
MAC number exceeds the the maximum MAC address number on this port.
•
drop: The packets will be dropped when learned MAC number exceeds
the the maximum MAC address number on this port.
•

disable: The MAC address threshold on this port is disabled.

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable Port Security function for port 1/0/1, select Static mode as the learn

mode, and specify the maximum number of MAC addresses that can be
learned on this port as 30. When the number of MAC address entries reaches
30 on this port, new entry will be dropped :

T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# mac address-table max-mac-count max-number
30 mode static status drop

26.6

mac address-table notification (interface)
Description
The mac address-table notification command is used to configure the MAC

change notification on port.

Syntax
mac address-table notification { [ learn-mode-change enable | disable ]

[ exceed-max-learned enable | disable ] [ new-mac-learned enable |

disable ] }

215

Parameter
learn-mode-change

enable

|

disable

——

Enable/Disable

the

learn-mode-change notification. With this feature enabled, a SNMP

notification is generated and sent to the network management system (NMS)
when the learning mode of this port changes. To configure the learning mode

configuration, refer to mac address-table max-mac-count.

exceed-max-learned enable | disable —— Enable/Disable the MAC address

threshold notification on this port. With this feature enabled, a SNMP
notification is generated and sent to the network management system (NMS)
when the MAC address threshold limit on this port is reached or exceeded.

To configure the port’s MAC address threshold, refer to mac address-table
max-mac-count.

new-mac-learned

enable

|

disable

——

Enable/Disable

the

new-mac-learned notification on this port. With this feature enabled, a SNMP

notification is generated and sent to the network management system (NMS)
when the port learns a new MAC address.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the learn-mode-change notification on port 1/0/2:
T2600G-28TS(config)# mac address-table notification global-status
enable
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# mac address-table notification
learn-mode-change enable

216

26.7

mac address-table security
Description
The mac address-table security command is used to configure security of

the MAC address table in a specified VLAN.

Syntax
mac address-table security vid vid max-learn number { forward | drop |
disable }

Parameter

vid —— Speicify the VLAN ID to configure its MAC address table.

number —— Configure the threshold of the MAC address table in this VLAN. It
ranges from 0 to 16383.

forward | drop | disable —— Choose the mode when learned MAC number
exceeds the threshold of the MAC address table in this VLAN.
•
Drop: The packets will be dropped when learned MAC number exceeds
the threshold of the MAC address table in this VLAN..
•
Forward: The packets will be forward but not be learned when learned
MAC number exceeds the threshold of the MAC address table in this VLAN..
•

Disable: The threshold of the MAC address table is disabled.

Command Mode

Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the max learned MAC address number is VLAN 2 as 1000, and drop
the packets that have no match in the MAC address table:

T2600G-28TS(config)# mac address-table security vid 2 max-learn 1000
drop

217

26.8

show mac address-table
Description
The show mac address-table command is used to display the information of

all address entries.

Syntax
show mac address-table { dynamic | static | filtering }

Parameter
dynamic | static | filtering —— The type of your desired entry. By default all
the entries are displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the information of all address entries:
T2600G-28TS(config)# show mac address-table

26.9

clear mac address-table
Description
The show mac address-table command is used to clear the specified
address entries.

Syntax
clear mac address-table { dynamic | static | filtering }

Parameter
dynamic | static | filtering —— The type of your desired entry.

218

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear the information of all static address entries:
T2600G-28TS(config)# clear mac address-table static

26.10 show mac address-table aging-time
Description
The show mac address-table aging-time command is used to display the

Aging Time of the MAC address.

Syntax
show mac address-table aging-time

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the Aging Time of the MAC address:
T2600G-28TS(config)# show mac address-table aging-time

219

26.11 show mac address-table max-mac-count
Description
The show mac address-table max-mac-count interface gigabitEthernet

command is used to display the security configuration of all ports or the
specified port.

Syntax
show mac address-table max-mac-count { all | interface gigabitEthernet

port }

Parameter

all —— Displays the security information of all the Ethernet ports.

port —— The Ethernet port number.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the security configuration of all ports:
T2600G-28TS(config)# show mac address-table max-mac-count all
Display the security configuration of port 1/0/1:
T2600G-28TS(config)# show mac address-table max-mac-count interface
gigabitEthernet 1/0/1

26.12 show mac address-table interface
Description
The show mac address-table interface command is used to display the

address configuration of the specified port/port channel.
220

Syntax
show mac address-table interface { gigabitEthernet port | port-channel

port-channel-id }

Parameter

port —— The Ethernet port number.

port-channel-id —— The ID of the port channel.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the address configuration of port 1/0/1:
T2600G-28TS(config)# show mac address-table interface gigabitEthernet
1/0/1

26.13 show mac address-table count
Description
The show mac address-table count command is used to display the total

amount of MAC address table.

Syntax
show mac address-table count [ vlan vlan-id ]

Parameter
vlan-id —— Specify the VLAN which the MAC entries belong to.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
221

Example
Display the total MAC entry information in different VLANs:
T2600G-28TS(config)# show mac address-table count

26.14 show mac address-table address
Description
The show mac address-table address command is used to display the

information of the specified MAC address.

Syntax
show mac address-table address mac-addr [ interface { gigabitEthernet

port | port-channel port-channel-id } | vid vlan-id ]

Parameter

mac-addr ——The specified MAC address.
port —— The Ethernet port number.

port-channel-id —— The ID of the port channel.

vlan-id —— Specify the VLAN which the entry belongs to.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the information of the MAC address 00:00:00:00:23:00 in VLAN 1:
T2600G-28TS(config)#show mac address-table address 00:00:00:00:23:00
vid 1

222

26.15 show mac address-table vlan
Description
The show mac address-table vlan command is used to display the MAC

address configuration of the specified vlan.

Syntax
show mac address-table vlan vid

Parameter

vid ——The specified VLAN id.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the MAC address configuration of vlan 1:
T2600G-28TS(config)# show mac address-table vlan 1

26.16 show mac address-table notification
Description
The show mac address-table notification command is used to display the

MAC notificaiton configuration globally or on the specified port.

Syntax
show mac address-table notification { all | interface gigabitEthernet port }

Parameter

all —— Displays the notificaiton information globally and of all the Ethernet
ports.

port —— Displays the notification information on the specified port.
223

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the notificaiton configuration of all the ports:
T2600G-28TS(config)# show mac address-table notification all

26.17 show mac address-table security
Description
The show mac address-table security command is used to display the MAC

address security configuration globally or of the specified VLAN.

Syntax
show mac address-table security [ vid vid ]

Parameter

vid ——The specified VLAN id.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the MAC address security configuration of VLAN 1:
T2600G-28TS(config)# show mac address-table security vid 1

224

Chapter 27 System Configuration Commands
System Commands can be used to configure the System information and System IP, reboot
and reset the switch, upgrade the switch system and other operations.

27.1

system-time manual
Description
The system-time manual command is used to configure the system time
manually.

Syntax
system-time manual time

Parameter
time —— Set the date and time manually, MM/DD/YYYY-HH:MM:SS. The valid

value of the year ranges from 2000 to 2037.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the system mode as manual, and the time is 12/20/2010 17:30:35
T2600G-28TS(config)# system-time manual 12/20/2010-17:30:35

27.2

system-time ntp
Description
The system-time ntp command is used to configure the time zone and the IP
address for the NTP Server. The switch will get UTC automatically if it has
connected to an NTP Server.
225

Syntax
system-time ntp { timezone } { ntp-server } { backup-ntp-server }
{ fetching-rate }

Parameter
timezone —— Your local time-zone, and it ranges from UTC-12:00 to

UTC+13:00.

The detailed information that each time-zone means are displayed as follow:
UTC-12:00 —— TimeZone for International Date Line West.
UTC-11:00 —— TimeZone for Coordinated Universal Time-11.
UTC-10:00 —— TimeZone for Hawaii.
UTC-09:00 —— TimeZone for Alaska.
UTC-08:00 —— TimeZone for Pacific Time(US Canada).
UTC-07:00 —— TimeZone for Mountain Time(US Canada).
UTC-06:00 —— TimeZone for Central Time(US Canada).
UTC-05:00 —— TimeZone for Eastern Time(US Canada).
UTC-04:30 —— TimeZone for Caracas.
UTC-04:00 —— TimeZone for Atlantic Time(Canada).
UTC-03:30 —— TimeZone for Newfoundland.
UTC-03:00 —— TimeZone for Buenos Aires, Salvador, Brasilia.
UTC-02:00 —— TimeZone for Mid-Atlantic.
UTC-01:00 —— TimeZone for Azores, Cape Verde Is.
UTC

—— TimeZone for Dublin, Edinburgh, Lisbon, London.

UTC+01:00 —— TimeZone for Amsterdam, Berlin, Bern, Rome, Stockholm,
Vienna.
UTC+02:00 —— TimeZone for Cairo, Athens, Bucharest, Amman, Beirut,
Jerusalem.
UTC+03:00 —— TimeZone for Kuwait, Riyadh, Baghdad.
UTC+03:30 —— TimeZone for Tehran.
226

UTC+04:00 —— TimeZone for Moscow, St.Petersburg, Volgograd, Tbilisi,
Port Louis.
UTC+04:30 —— TimeZone for Kabul.
UTC+05:00 —— TimeZone for Islamabad, Karachi, Tashkent.
UTC+05:30 —— TimeZone for Chennai, Kolkata, Mumbai, New Delhi.
UTC+05:45 —— TimeZone for Kathmandu.
UTC+06:00 —— TimeZone for Dhaka,Astana, Ekaterinburg.
UTC+06:30 —— TimeZone for Yangon (Rangoon).
UTC+07:00 —— TimeZone for Novosibrisk, Bangkok, Hanoi, Jakarta.
UTC+08:00—— TimeZone for Beijing, Chongqing, Hong Kong, Urumqi,
Singapore.
UTC+09:00 —— TimeZone for Seoul, Irkutsk, Osaka, Sapporo, Tokyo.
UTC+09:30 —— TimeZone for Darwin, Adelaide.
UTC+10:00 —— TimeZone for Canberra, Melbourne, Sydney, Brisbane.
UTC+11:00 —— TimeZone for Solomon Is., New Caledonia, Vladivostok.
UTC+12:00 —— TimeZone for Fiji, Magadan, Auckland, Welington.
UTC+13:00 —— TimeZone for Nuku'alofa, Samoa.

ntp-server —— The IP address for the Primary NTP Server.

backup-ntp-server —— The IP address for the Secondary NTP Server.
fetching-rate —— Specify the rate fetching time from NTP server.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the system time mode as NTP, the time zone is UTC-12:00, the

primary NTP server is 133.100.9.2 and the secondary NTP server is
139.78.100.163, the fetching-rate is 11 hours:
227

T2600G-28TS(config)#

system-time

ntp

UTC-12:00

133.100.9.2

139.79.100.163 11

27.3

system-time dst predefined
Description
The system-time dst predefined command is used to select a daylight

saving time configuration from the predefined mode. The configuration can

be used recurrently. To disable DST function, use no system-time dst
command.

Syntax

system-time dst predefined [ USA | Australia | Europe | New-Zealand ]
no system-time dst

Parameter
USA | Australia | Europe | New-Zealand —— The mode of daylight saving time.
There are 4 options which are USA, Australia, Europe and New-Zealand
respectively. The default value is Europe.

Following are the time ranges of each option:
USA: Second Sunday in March, 02:00 ~ First Sunday in November, 02:00.
Australia: First Sunday in October, 02:00 ~ First Sunday in April, 03:00.
Europe: Last Sunday in March, 01:00 ~ Last Sunday in October, 01:00.

New Zealand: Last Sunday in September, 02:00 ~ First Sunday in April, 03:00.

Command Mode

Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the daylight saving time as USA standard:
T2600G-28TS(config)#system-time dst predefined USA
228

27.4

system-time dst date
Description
The system-time dst date command is used to configure the one-off

daylight saving time. The start date is in the current year by default. The time

range of the daylight saving time must shorter than one year, but you can

configure it spanning years. To disable DST function, use no system-time dst
command.

Syntax
system-time dst date {smonth} {sday} {stime} {syear} {emonth} {eday} {etime}

{eyear}[offset]

no system-time dst

Parameter
smonth ——The start month of the daylight saving time. There are 12 values
showing as follows: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

sday —— The start day of the daylight saving time, ranging from 1 to 31. Here
you should show special attention to February and the differences between a
solar month and a lunar month.

stime —— The start moment of the daylight saving time, HH:MM.
syear —— The start year of the daylight saving time.
emonth —— The end month of the daylight saving time. There are 12 values
showing as follows: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

eday —— The end day of the daylight saving time, ranging from q to 31. Here

you should show special attention to February and the differences between a
solar month and a lunar month.

etime —— The end moment of the daylight saving time, HH:MM.
eyear —— The end year of the daylight saving time.
offset —— The number of minutes to add during the daylight saving time. It is
60 minutes by default.

229

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the daylight saving time from zero clock, Apr 1st to zero clock Oct
1st and the offset is 30 minutes in 2015:

T2600G-28TS(config)# system-time dst date Apr 1 00:00 2015 Oct 1 00:00
2015 30

27.5

system-time dst recurring
Description
The system-time dst recurring command is used to configure the recurring

daylight saving time. It can be configured spanning years. To disable DST

function, use no system-time dst command.

Syntax
system-time dst recurring {sweek} {sday} {smonth} {stime} {eweek} {eday}
{emonth} {etime} [offset]
no system-time dst

Parameter
sweek——The start week of the daylight saving time. There are 5 values
showing as follows: first, second, third, fourth, last.

sday —— The start day of the daylight saving time. There are 7 values

showing as follows: Sun, Mon, Tue, Wed, Thu, Fri, Sat.

smonth —— The start month of the daylight saving time. There are 12 values

showing as follows: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

stime —— The start moment of the daylight saving time, HH:MM.
230

eweek ——The end week of the daylight saving time. There are 5 values
showing as follows: first, second, third, fourth, last.

eday —— The end day of the daylight saving time. There are 5 values

showing as follows: Sun, Mon, Tue, Wed, Thu, Fri, Sat.

emonth —— The end month of the daylight saving time. There are 12 values

showing as following: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov,
Dec.

etime —— The end moment of the daylight saving time, HH:MM.
offset —— The number of minutes to add during the daylight saving time. It is

60 minutes by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the daylight saving time from 2:00am, the first Sunday of May to
2:00am, the last Sunday of Oct and the offset is 45 minutes:

T2600G-28TS(config)# system-time dst recurring first Sun May 02:00 last
Sun Oct 02:00 45

27.6

hostname
Description
The hostname command is used to configure the system name. To clear the
system name information, use no hostname command.

Syntax
hostname [ hostname ]
no hostname
231

Parameter
hostname —— System Name. The length of the name ranges from 1 to 32

characters. By default, it is the device name, for example “T2600G-28TS”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the system name as TPLINK:
T2600G-28TS(config)# hostname TPLINK

27.7

location
Description
The location command is used to configure the system location. To clear the

system location information, use no location command.

Syntax
location [ location ]
no location

Parameter
location —— Device Location. It consists of 32 characters at most. It is
“SHENZHEN” by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

232

Example
Configure the system location as SHENZHEN:
T2600G-28TS(config)# location SHENSHEN

27.8

contact-info
Description
The contact-info command is used to configure the system contact

information. To clear the system contact information, use no contact-info

command.

Syntax
contact-info [ contact_info ]
no contact-info

Parameter
contact_info —— Contact Information. It consists of 32 characters at most. It
is “www.tp-link.com” by default.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the system contact information as www.tp-link.com:
T2600G-28TS(config)# contact-info www.tp-link.com

233

27.9

ip address
Description
This ip address command is used to configure the IP address and IP subnet
mask for the specified interface manually. The interface type includes: routed
port, port-channel interface, loopback interface and VLAN interface.

Syntax
ip address { ip-addr } { mask } [ secondary ]
no ip address [ ip-addr ] [ mask ]

Parameter
ip-addr —— The IP address of the Layer 3 interface.
mask —— The subnet mask of the Layer 3 interface.
secondary —— Specify the interface’s secondary IP address. If this
parameter is omitted here, the configured IP address is the interface’s
primary address.

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the VLAN interface 2 with the primary IP address as 192.168.1.1/24
and secondary IP address as 192.168.2.1/24:
T2600G-28TS(config)# interface vlan 2

T2600G-28TS(config-if)# ip address 192.168.1.1 255.255.255.0

T2600G-28TS(config-if)# ip address 192.168.2.1 255.255.255.0 secondary

234

27.10 ip address-alloc
Description
The IP address-alloc command is used to enable the DHCP Client function or

the BOOTP Protocol. When this function is enabled, the specified interface

will obtain IP from DHCP Server or BOOTP server. To disable the IP obtaining

function on the specified interface, use the no ip address command. This
command applies to the routed port, the port-channel interface and the VLAN

interface.

Syntax
ip address-alloc { dhcp | bootp }
no ip address

Parameter
dhcp —— Specify the Layer 3 interface to obtain IP address from the DHCP
Server.

bootp —— Specify the Layer 3 interface to obtain IP address from the
BOOTP Server.

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the DHCP Client function on the Lay 3 routed port 1/0/1:
T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# no switchport
T2600G-28TS(config-if)# ip address-alloc dhcp
Disable the IP address obtaining function on the VLAN interface 2:
235

T2600G-28TS(config)# interface vlan 2
T2600G-28TS(config-if)# no ip address

27.11 reset
Description
The reset command is used to reset the switch’s software. After resetting, all
configuration of the switch will restore to the factory defaults and your
current settings will be lost.

Syntax
reset

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Reset the software of the switch:
T2600G-28TS# reset

27.12 reboot
Description
The reboot command is used to reboot the Switch. To avoid damage, don’t
turn off the device while rebooting.

Syntax
reboot

Command Mode
Privileged EXEC Mode
236

Privilege Requirement
Only Admin level users have access to these commands.

Example
Reboot the switch:
T2600G-28TS# reboot

27.13 reboot-schedule
Description
This reboot-schedule command is used to configure the switch to reboot at

a certain time point. To delete the reboot schedule settings, use the

reboot-schedule cancel command.

Syntax
reboot-schedule at time [ date ] [ save_before_reboot ]
reboot-schedule in interval [ save_before_reboot ]
reboot-schedule cancel

Parameter
time —— Specify the time point for the switch to reboot, in the format of
hh:mm.

date —— Specify the date for the switch to reboot, in the format of

DD:MM:YYYY. The date should be within 30 days.

save_before_reboot —— Save the configuration file before the switch
reboots.

interval —— Specify a time period after which the switch reboots. It ranges
from 1 to 43200 minutes.

cancel —— Delete the reboot schedule settings.

237

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
In the command reboot-schedule at time [ date ] [ save_before_reboot ], if

no date is specified and the time you set here is later than the time that this
command is executed, the switch will reboot later that day; otherwise the
switch will reboot at the time point the next day.

Example
Specify the switch to save the configuration files and reboot in 200 minutes,:
T2600G-28TS(config)# reboot-schedule in 200 save_before_reboot

27.14 copy running-config startup-config
Description
The copy running-config startup-config command is used to save the

current settings.

Syntax
copy running-config startup-config

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Save current settings:
T2600G-28TS# copy running-config startup-config
238

27.15 copy startup-config tftp
Description
The copy startup-config tftp command is used to backup the configuration

file to TFTP server.

Syntax
copy startup-config tftp ip-address ip-addr filename name

Parameter
ip-addr —— IP Address of the TFTP server. Both IPv4 and IPv6 addresses are
supported, for example 192.168.0.1 or fe80::1234.

name —— Specify the name for the configuration file which would be backup.

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Backup the configuration files to TFTP server with the IP 192.168.0.148 and
name this file config.cfg:

T2600G-28TS#

copy

startup-config

tftp

ip-address

192.168.0.148

filename config
Backup the configuration files to TFTP server with the IP fe80::1234 and name
this file config.cfg:

T2600G-28TS# copy startup-config tftp ip-address fe80::1234 filename
config

239

27.16 copy tftp startup-config
Description
The copy tftp startup-config command is used to download the

configuration file to the switch from TFTP server.

Syntax
copy tftp startup-config ip-address ip-addr filename name

Parameter
ip-addr —— IP Address of the TFTP server. Both IPv4 and IPv6 addresses are
supported, for example 192.168.0.1 or fe80::1234.

name —— Specify the name for the configuration file which would be
downloaded.

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Download the configuration file named as config.cfg to the switch from TFTP

server with the IP 192.168.0.148:
T2600G-28TS#

copy

tftp

startup-config

ip-address

192.168.0.148

filename config
Download the configuration file named as config.cfg to the switch from TFTP

server with the IP fe80::1234

T2600G-28TS# copy tftp startup-config ip-address fe80::1234 filename
config

240

27.17 boot application
Description
The boot application command is used to configure the image file as startup
image or backup image.

Syntax
boot application filename { image1 | image 2 } { startup | backup }
no boot application

Parameter
image1 | image2 —— Specify the image file to be configured. By default, the
image1.bin is the startup image and the image2.bin is the backup image.

startup | backup —— Specify the property of the image, either startup image

or backup image.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the image2.bin as the startup image:
T2600G-28TS(config)# boot application filename image2 startup

27.18 remove backup-image
Description
The remove backup-image command is used to delete the backup-image.

Syntax
remove backup-image
241

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Delete the backup image file:
T2600G-28TS# remove backup-image

27.19 firmware upgrade
Description
The firmware upgrade command is used to upgrade the switch’s backup

image file via the TFTP server. The uploaded firmware file will take place of

the Backup Image, and user can chose whether to reboot the switch will the
Backup Image.

Syntax
firmware upgrade ip-address ip-addr filename name

Parameter
ip-addr —— IP Address of the TFTP server. Both IPv4 and IPv6 addresses are
supported, for example 192.168.0.1 or fe80::1234.

name —— Specify the name for the firmware file.

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

242

Example
Upgrade the switch’s backup iamge file with the file firmware.bin in the TFTP
server with the IP address 192.168.0.148, and reboot the switch with this
firmware:

T2600G-28TS# firmware upgrade ip-address 192.168.0.148 filename
firmware.bin
It will only upgrade the backup image. Continue? (Y/N):y
Operation OK!
Reboot with the backup image? (Y/N): y
Upgrade the switch’s backup iamge file with the file firmware.bin in the TFTP

server with the IP address fe80::1234, but do not reboot the switch:
T2600G-28TS#

firmware

upgrade

ip-address

fe80::1234

filename

firmware.bin
It will only upgrade the backup image. Continue? (Y/N):y
Operation OK!
Reboot with the backup image? (Y/N): n

27.20 boot autoinstall start
Note: Only T2600G-18TS supports this command.

Description
The boot autoinstall start command is used to start Auto Install function. To
stop the Auto Install function, use no boot autoinstall start.

Syntax
boot autoinstall start
no boot autoinstall start

243

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Start Auto Install function:
T2600-18TS(config)# boot autoinstall start

27.21 boot autoinstall persistent-mode
Note: Only T2600G-18TS supports this command.

Description
The boot autoinstall persistent-mode command is used to start Auto Install

function to next reboot cycle. To diable persistent mode use no boot
autoinstall persistent-mode.

Syntax
boot autoinstall persistent-mode
no boot autoinstall persistent-mode

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Start Auto Install function:
T2600-18TS(config)# boot autoinstall persistent-mode

244

27.22 boot autoinstall auto-save
Note: Only T2600G-18TS supports this command.

Description
The boot autoinstall auto-save command is used to automatically save the
new configuration file that was downloaded by Auto Install function to

start-up configuration file Auto Install. To disable auto-save configuration
feature use no boot autoinstall auto-save.

Syntax
boot autoinstall auto-save
no boot autoinstall auto-save

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure Auto Install function to auto-save new configuration file to start-up

configuration file:

T2600-18TS(config)# boot autoinstall auto-save

27.23 boot autoinstall auto-reboot
Note: Only T2600G-18TS supports this command.

Description
The boot autoinstall auto-reboot command is used to automatically reboot

the switch after Auto Install function is completed successfully. To disable
auto-reboot feature use no boot autoinstall auto-reboot.
245

Syntax
boot autoinstall auto-reboot
no boot autoinstall auto-reboot

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the switch to auto reboot after Auto Install function completed
successfully:

T2600-18TS(config)# boot autoinstall auto-reboot

27.24 boot autoinstall retry-count
Note: Only T2600G-18TS supports this command.

Description
The boot autoinstall retry-count command is used to configure retry count

when Auto Install function uses TFTP to download configuration files in a
cycle of Auto Install process. To set retry count to default value use no boot
autoinstall retry-count.

Syntax
boot autoinstall retry-count count
no boot autoinstall retry-count

Parameter
count —— The count of retrying auto install. The value ranges from 1 to 3.

246

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure TFTP retry 2 times when download files failed:
T2600-18TS(config)# boot autoinstall retry-count 2

27.25 show boot autoinstall
Note: Only T2600G-18TS supports this command.

Description
The show boot autoinstall command is used to display the configuration of
Auto Install function.

Syntax
show boot autoinstall

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of Auto Install function:
T2600-18TS# show boot autoinstall

27.26 show boot autoinstall downloaded-config
Note: Only T2600G-18TS supports this command.
247

Description
The show boot autoinstall downloaded-config command is used to display

the configuration file which downloaded by Auto Install.

Syntax
show boot autoinstall downloaded-config

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration file which downloaded by Auto Install:
T2600-18TS# show boot autoinstall downloaded-config

27.27 ping
Description
The ping command is used to test the connectivity between the switch and
one node of the network.

Syntax
ping [ ip | ipv6 ] { ip_addr } [ -n count ] [ -l count ] [ -i count ]

Parameter

ip —— The type of the IP address for ping test should be IPv4.
ipv6 —— The type of the IP address for ping test should be IPv6.

ip_addr —— The IP address of the destination node for ping test. If the

parameter ip/ipv6 is not selected, both IPv4 and IPv6 addresses are
supported, for example 192.168.0.100 or fe80::1234.

-n count —— The amount of times to send test data during Ping testing. It

ranges from 1 to 10. By default, this value is 4.
248

-l count —— The size of the sending data during ping testing. It ranges from 1

to 1500 bytes. By default, this value is 64.

-i count —— The interval to send ICMP request packets. It ranges from 100

to 1000 milliseconds. By default, this value is 1000.

Command Mode
User EXEC Mode and Privileged EXEC Mode

Privilege Requirement
None.

Example
To test the connectivity between the switch and the network device with the

IP 192.168.0.131, specify the count (-l) as 512 bytes and count (-i) as 1000

milliseconds. If there is not any response after 8 times’ Ping test, the
connection between the switch and the network device is failed to establish:
T2600G-28TS# ping 192.168.0.131 –n 8 –l 512
To test the connectivity between the switch and the network device with the

IP fe80::1234, specify the count (-l) as 512 bytes and count (-i) as 1000

milliseconds. If there is not any response after 8 times’ Ping test, the
connection between the switch and the network device is failed to establish:
T2600G-28TS# ping fe80::1234 –n 8 –l 512

27.28 tracert
Description
The tracert command is used to test the connectivity of the gateways during
its journey from the source to destination of the test data.

Syntax
tracert [ ip | ipv6 ] ip_addr [ maxHops ]

Parameter

ip —— The type of the IP address for tracert test should be IPv4.
249

ipv6 —— The type of the IP address for tracert test should be IPv6.

ip_addr —— The IP address of the destination device. If the parameter ip/ipv6

is not selected, both IPv4 and IPv6 addresses are supported, for example
192.168.0.100 or fe80::1234.

maxHops —— The maximum number of the route hops the test data can pass

though. It ranges from 1 to 30. By default, this value is 4.

Command Mode
User EXEC Mode and Privileged EXEC Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Test the connectivity between the switch and the network device with the IP

192.168.0.131. If the destination device has not been found after 20

maxHops, the connection between the switch and the destination device is
failed to establish:

T2600G-28TS# tracert 192.168.0.131 20
Test the connectivity between the switch and the network device with the IP
fe80::1234. If the destination device has not been found after 20 maxHops,

the connection between the switch and the destination device is failed to
establish:

T2600G-28TS# tracert fe80::1234 20

27.29 show system-info
Description
The show system-info command is used to display System Description,

System Name, System Location, Contact Information, Hardware Version,
Software Version, Bootloader Version, Mac Address, System Time, Run Time
and so on.

250

Syntax
show system-info

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the system information:
T2600G-28TS# show system-info

27.30 show system-info interface
Description
The show system-info interface command is used to display the utilization

of the connected Ethernet port.

Syntax
show system-info interface [ gigabitEthernet port ]

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the utilization of port 18:
T2600G-28TS# show system-info interface gigabitEthernet 1/0/18

251

27.31 show image-info
Description
The show imsage-info command is used to display the information of image

files in the system.

Syntax
show image-info

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the system image files’ information:
T2600G-28TS# show image-info

27.32 show boot
Description
The show boot command is used to display the boot configuration of the
system.

Syntax
show boot

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

252

Example
Display the system boot configuration information:
T2600G-28TS# show boot

27.33 show running-config
Description
The show running-config command is used to display the current operating
configurations of the system or of a specified port.

Syntax
show running-config [ all ]

Parameter
all —— Displays all the current operating configurations. Without this option,
only the configurations that differ from the default value will be displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the configurations that differ from the default value:
T2600G-28TS# show running-config

27.34 show running-config |
Description
The show running-config | command is used to filter the output information

with the keyword you specify. “|” is a separator indicating the information will
be filtered.

253

Syntax
show running-config | { [exclude exclude-keyword ] [ include

include-keyword } ]

Parameter
exclude-keyword —— The operating configuration excluding this keyword wil

be displayed.

include-keyword —— The operating configuration including this keyword wil

be displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the operating configuration that includes the “vlan” keyword:
T2600G-28TS# show running-config | include vlan

27.35 show startup-config
Description
The show startup-config command is used to display the current

configuration saved in the switch. These configuration settings will not be lost
the next time you reboot the switch.

Syntax
show startup-config

Command Mode
Privileged EXEC Mode and Any Configuration Mode

254

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the saved configuration:
T2600G-28TS# show startup-config

27.36 show system-time
Description
The show system-time command is used to display the time information of

the switch.

Syntax
show system-time

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the time information of the switch
T2600G-28TS# show system-time

27.37 show system-time dst
Description
The show system-time dst command is used to display the DST time
information of the switch.

Syntax
show system-time dst
255

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DST time information of the switch
T2600G-28TS# show system-time dst

27.38 show system-time ntp
Description
The show system-time ntp command is used to display the NTP mode
configuration information.

Syntax
show system-time ntp

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the NTP mode configuration information of the switch:
T2600G-28TS# show system-time ntp

256

27.39 show cable-diagnostics interface
gigabitEthernet

Description
The show cable-diagnostics interface gigabitEthernet command is used to

display the cable diagnostics of the connected Ethernet Port, which
facilitates you to check the connection status of the cable connected to the
switch, locate and diagnose the trouble spot of the network.

Syntax
show cable-diagnostics interface gigabitEthernet port

Parameter
port —— The number of the port which is selected for Cable test.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Show the cable-diagnostics of port 3:
T2600G-28TS# show cable-diagnostics interface gigabitEthernet 1/0/3

27.40 show cable-diagnostics careful interface
Description
The show cable-diagnostics careful interface gigabitEthernet command is

used to display the connection status of the cable connected to the switch.
When taking the careful cable test, the switch will only test the cable for the
port which is in the link-down status.

257

Syntax
show cable-diagnostics careful interface [ gigabitEthernet port ]

Parameter
port —— The number of the port which is selected for Cable test.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Show the cable-diagnostics of port 3:
T2600G-28TS# show cable-diagnostics careful interface gigabitEthernet
1/0/3

27.41 show cpu-utilization
Description
The show cpu-utilization command is used to display the system’s CPU
utilization in the last 5 seconds/1minute/5minutes.

Syntax
show cpu-utilization

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the CPU utilization information of the switch:
258

T2600G-28TS# show cpu-utilization

27.42 show memory-utilization
Description
The show memory-utilization command is used to display the system’s

memory utilization in the last 5 seconds/1minute/5minutes.

Syntax
show memory-utilization

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the memory utilization information of the switch:
T2600G-28TS# show memory-utilization

259

Chapter 28 IPv6 Address Configuration Commands
The IPv6 address configuration commands are provided in the Interface Configuration Mode,

which includes the routed port, the port-channel interface and the VLAN interface. Enter the

configuration mode of these Layer 3 interfaces and configure their IPv6 parameters.

28.1

ipv6 enable
Description
This command is used to enable the IPv6 function on the speicified Layer 3
interface. IPv6 function should be enabled before the IPv6 address

configuration management. By default it is enabled on VLAN interface 1. IPv6

function can only be enabled on one Layer 3 interface at a time.

If the IPv6 function is disabled, the corresponding IPv6 netstack and
IPv6-based modules will be invalid, for example SSHv6, SSLv6, TFTPv6 etc.
To disable the IPv6 function, use no ipv6 enable command.

Syntax
ipv6 enable
no ipv6 enable

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IPv6 function on the VLAN interface 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 enable

260

28.2

ipv6 address autoconfig
Description
This command is used to enable the automatic configuration of the ipv6

link-local address. The switch has only one ipv6 link-local address, which can

be configured automatically or manually. The general ipv6 link-local address

has the prefix as fe80::/10. IPv6 routers cannot forward packets that have

link-local source or destination addresses to other links. The autuconfigured

ipv6 link-local address is in EUI-64 format. To verify the uniqueness of the

link-local address, the manually configured ipv6 link-local address will be

deleted when the autoconfigured ipv6 link-local address takes effect.

Syntax
ipv6 address autoconfig

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the automatic configuration of the ipv6 link-local address on VLAN
interface 1:

T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address autoconfig

28.3

ipv6 address link-local
Description
The ipv6 address link-local command is used to configure the ipv6 link-local

address manually on a specified interface. To delete the configured link-local

address, use no ipv6 address link-local command.

Syntax
ipv6 address ipv6-addr link-local
no ipv6 address ipv6-addr link-local
261

Parameter
ipv6-addr —— The link-local address of the interface. It should be a
standardized IPv6 address with the prefix fe80::/10, otherwise this command
will be invalid.

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the link-local address as fe80::1234 on the VLAN interface 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address fe80::1234 link-local

28.4

ipv6 address dhcp
Description
The ipv6 address dhcp command is used to enable the DHCPv6 Client

function. When this function is enabled, the Layer 3 interface will try to obtain
IP from DHCPv6 server. To delete the allocated IP from DHCPv6 server and
disable the DHCPv6 Client function, use no ipv6 address dhcp command.

Syntax
ipv6 address dhcp
no ipv6 address dhcp

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

262

Example
Enable the DHCP Client function on VLAN interface 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address dhcp

28.5

ipv6 address ra
Description
This command is used to configure the interface’s global IPv6 address

according to the address prefix and other configuration parameters from its
received RA(Router Advertisement) message. To disable this function, use no
ipv6 address ra command.

Syntax
ipv6 address ra
no ipv6 address ra

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the automatic ipv6 address configuration function to obtain IPv6
address through the RA message on VLAN interface 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address ra

263

28.6

ipv6 address eui-64
Description
This command is used to manually configure a global IPv6 address with an
extended unique identifier (EUI) in the low-order 64 bits on the interface.

Specify only the network prefix. The last 64 bits are automatically computed
from the switch MAC address. To remove an EUI-64 IPv6 address from the

interface, use the no ipv6 address eui-64 command.

Syntax
ipv6 address ipv6-addr eui-64
no ipv6 address ipv6-addr eui-64

Parameter
ipv6-addr —— Global IPv6 address with 64 bits network prefix, for example
3ffe::/64.

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure an EUI-64 global address on the interface with the network prefix
3ffe::/64:

T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address 3ffe::/64 eui-64

264

28.7

ipv6 address
Description
This command is used to manually configure a global IPv6 address on the

interface. To remove a global IPv6 address from the interface, use no ipv6
address command.

Syntax
ipv6 address ipv6-addr
no ipv6 address ipv6-addr

Parameter
ipv6-addr —— Global IPv6 address with network prefix, for example
3ffe::1/64.

Configuration Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the global address 3001::1/64 on VLAN interface 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ipv6 address 3001::1/64

28.8

show ipv6 interface
Description
This command is used to display the configured ipv6 information of the
management interface, including ipv6 function status, link-local address and

global address, ipv6 multicast groups etc.

Syntax
show ipv6 interface
265

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the ipv6 information of the management interface:
T2600G-28TS(config)# show ipv6 interface

266

Chapter 29 Ethernet Configuration Commands
Ethernet Configuration Commands can be used to configure the Bandwidth Control,
Negotiation Mode and Storm Control for Ethernet ports.

29.1

interface gigabitEthernet
Description
The interface gigabitEthernet command is used to enter the Interface

gigabitEthernet Configuration Mode and configure the corresponding Gigabit
Ethernet port.

Syntax
interface gigabitEthernet port

Parameter
port —— The Ethernet port number.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
To enter the Interface gigabitEthernet Configuration Mode and configure port
2:

T2600G-28TS(config)# interface gigabitEthernet 1/0/2

267

29.2

interface range gigabitEthernet
Description
The interface range gigabitEthernet command is used to enter the interface

range gigabitEthernet Configuration Mode and configure multiple Gigabit
Ethernet ports at the same time.

Syntax
interface range gigabitEthernet port-list

Parameter
port-list —— The list of Ethernet ports.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
Command in the Interface Range gigabitEthernet Mode is executed
independently on all ports in the range. It does not affect the execution on the
other ports at all if the command results in an error on one port.

Example
To enter the Interface range gigabitEthernet Configuration Mode, and

configure ports 1, 2, 3, 6, 7 and 9 at the same time by adding them to one
port-list:

T2600G-28TS(config)# interface range gigabitEthernet
1/0/1-3,1/0/6-7,1/0/9

268

29.3

description
Description
The description command is used to add a description to the Ethernet port.
To clear the description of the corresponding port, use no description
command.

Syntax
description string
no description

Parameter
string —— Content of a port description, ranging from 1 to 16 characters.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a description Port_5 to port 1/0/5:
T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)# description Port_5

29.4

shutdown
Description
The shutdown command is used to disable an Ethernet port. To enable this
port again, use no shutdown command.

269

Syntax
shutdown
no shutdown

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Disable port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# shutdown

29.5

flow-control
Description
The flow-control command is used to enable the flow-control function for a

port. To disable the flow-control function for this corresponding port, use no

flow-control command. With the flow-control function enabled, the Ingress
Rate and Egress Rate can be synchronized to avoid packet loss in the
network.

Syntax
flow-control
no flow-control

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)
270

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the flow-control function for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# flow-control

29.6

duplex
Description
The duplex command is used to configure the Duplex Mode for an Ethernet
port. To return to the default configuration, use no duplex command.

Syntax
duplex { auto | full | half }
no duplex

Parameter
auto | full | half —— The duplex mode of the Ethernet port. There are three

options: auto-negotiation mode, full-duplex mode and half-duplex mode. By

default the Gigabit Ethernet port is auto-negotiation mode.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the Duplex Mode as full-duplex for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
271

T2600G-28TS(config-if)# duplex full

29.7

jumbo
Description
The jumbo command is used to allow the jumbo frame to pass through this

port. To disable this feature, use no jumbo command. This feature is disabled
by default.

Syntax
jumbo
no jumbo

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Allow jumbo frame on port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# jumbo

29.8

jumbo-size

Note: Only T2600G-18TS supports this command.

Description
The jumbo-size command is used to specify the size of jumbo frames.

272

Syntax
jumbo-size size

Parameter
size —— The value of jumbo frames. It ranges from 1518 to 9216 bytes, and
the default is 1518 bytes.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Globally configure the size of jumbo frames as 9216:
T2600G-18TS(config)# jumbo-size 9216

29.9

speed
Description
The speed command is used to configure the Speed Mode for an Ethernet
port. To return to the default configuration, use no speed command.

Syntax
speed { 10 | 100 | 1000 | auto }
no speed

Parameter
10 | 100 | 1000 | auto —— The speed mode of the Ethernet port. There are

four options: 10Mbps, 100Mbps, 1000Mbps and Auto negotiation mode
(default).

273

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the Speed Mode as 100Mbps for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# speed 100

29.10 downspeed enable
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The downspeed enable command is used to enable auto negotiation for

100Mbps port speed, if negotiation for 1000Mbps port speed failed. To
disable this function ,use downspeed disable.

Syntax
downspeed enable
downspeed disable
Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

274

Example
Enable downspeed for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# downspeed enable

29.11 storm-control pps
Note: T2600G-18TS doesn’t support this command.

Description

The storm-control pps command is used to configure the storm control

mode as pps(packets per second) on an interface. To disable the pps mode,

Syntax

use no storm-control pps command.

storm-control pps

no storm-control pps

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines

This command should be used along with the storm-control command to

enable the storm control function and specify the detailed parameters in pps
mode.

Example

Set the storm control mode as pps on port 1/0/5:
T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)# storm-control pps
275

29.12 storm-control
Description

The storm-control command is used to enable the broadcast, multicast, or

unicast strom control function and to set threshold levels on an interface. To

Syntax

disable the storm control function, use no storm-control command.

storm-control { broadcast | multicast | unicast } { kbps | ratio | pps } { rate }
no storm-control { broadcast | multicast | unicast }

Parameter

broadcast | multicast | unicast —— Enable broadcast/multicast/unicast storm
control on the interface.

kbps | ratio | pps —— Specify the storm control type.
kbps: Specify the threshold in kbits per second.

ratio: Specify the threshold as a percentage of the bandwidth.
pps: Specify the threshold in packets per second.

rate —— Specify the bandwidth for receiving packets on the port. The
specified type of packet traffic exceeding the bandwidth will be discarded.

For kbps, the rate ranges from 1 to 1000000 kbps. For ratio, the rate ranges

from 1 to 100 percent. For pps, the rate ranges from 1 to 1488000 packets
per second.

Command Mode

Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines

Before you configure the storm-control type as kbps or ratio, pelease ensure

that the port is not in pps mode.

Example

Configure the broadcast storm control rate as 1000 kbps on port 1/0/5:
276

T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)# storm-control broadcast kbps 1000

29.13 bandwidth
Description
The bandwidth command is used to configure the bandwidth limit for an
Ethernet port. To disable the bandwidth limit, use no bandwidth command.

Syntax
bandwidth {[ ingress ingress-rate ] [ egress egress-rate ]}
no bandwidth { all | ingress | egress }

Parameter
ingress-rate —— Specify the bandwidth for receiving packets. Range:

1-1000000Kbps for the gigaport.

egress-rate —— Specify the bandwidth for sending packets. Range:
1-1000000Kbps for the gigaport.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the ingress-rate as 5120Kbps and egress-rate as 1024Kbps for

port 1/0/5:

T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)# bandwidth ingress 5120 egress 1024

277

29.14 clear counters
Description
The clear counters command is used to clear the statistics information of all
the Ethernet ports and port channels.

Syntax
clear counters
clear counters interface [ gigabitEthernet port ] [ port-channel

port-channel-id ]

Parameter

port —— The Ethernet port number.

port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Clear the statistic information of all ports and port channels:
T2600G-28TS(config)# clear counters

29.15 show interface status
Description
The show interface status command is used to display the connection
status of the Ethernet port/port channel.

Syntax
show

interface
port-channel-id ]

status

[

278

gigabitEthernet

port

]

[

port-channel

Parameter
port —— The Ethernet port number.

port-channel-id —— The ID of the port channel..

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the connection status of all ports and port channels:
T2600G-28TS(config)# show interface status
Display the connection status of port 1/0/1:
T2600G-28TS(config)# show interface status gigabitEthernet 1/0/1

29.16 show interface counters
Description
The show interface counters command is used to display the statistics
information of all ports/port channels.

Syntax
show interface counters [ gigabitEthernet port ] [ port-channel
port-channel-id ]

Parameter
port —— The Ethernet port number.

port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

279

Privilege Requirement
None.

Example
Display the statistics information of all Ethernet ports and port channels:
T2600G-28TS(config)# show interface counters
Display the statistics information of port 1/0/2:
T2600G-28TS(config)# show interface counters gigabitEthernet 1/0/2

29.17 show interface configuration
Description
The show interface configuration command is used to display the

configurations of all ports and port channels, including Port-status, Flow

Control, Negotiation Mode and Port-description.

Syntax
show interface configuration [ gigabitEthernet port ] [ port-channel
port-channel-id ]

Parameter

port —— The Ethernet port number.

port-channel-id —— The ID of the port channel.

Command Mode

Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configurations of all Ethernet ports and port channels:
T2600G-28TS(config)# show interface configuration
Display the configurations of port 1/0/2:
280

T2600G-28TS(config)# show interface configuration gigabitEthernet 1/0/2

29.18 show storm-control
Description
The show storm-control command is used to display the storm-control

information of Ethernet ports.

Syntax
show storm-control interface [ gigabitEthernet port-list ] [ port-channel

port-channel-id-list ]

Parameter

port-list ——The list of Ethernet ports.
port-channel-id-list —— The list of port channels.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the storm-control information of port 4, 5, 6, and 7:
T2600G-28TS(config)# show storm-control interface gigabitEthernet
1/0/4-7

29.19 show bandwidth
Description
The show bandwidth command is used to display the bandwidth-limit
information of Ethernet ports.

281

Syntax
show bandwidth interface [ gigabitEthernet port-list ] [ port-channel

port-channel-id-list ]

Parameter

port-list ——The list of Ethernet ports.
port-channel-id-list —— The list of port channels.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the bandwidth-limit information of port 1/0/4:
T2600G-28TS(config)# show bandwidth interface gigabitEthernet 1/0/4

282

Chapter 30 QoS Commands
QoS (Quality of Service) function is used to optimize the network performance. It provides you
with network service experience of a better quality.

30.1

qos (For T2600G-18TS only)
Description
The qos command is used to configure CoS (Class of Service) based on port.
To return to the default configuration, use no qos command.

Syntax
qos tc-id
no qos

Parameter
tc-id —— The priority of port. It ranges from 0 to 7, which represent TC0-TC7

respectively. By default, the priority is 0.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
Port priority is one property of the port. When the port priority is specified,

the data will be classified into the egress queue based on the tc value of the
current port.

Example
Configure the priority of port 5 as 3:
283

T2600G-18TS(config)# interface gigabitEthernet 1/0/5
T2600G-18TS(config-if)# qos 3

30.2

qos (For T2600G-52TS only)
Description
The qos command is used to configure CoS (Class of Service) based on port.
To return to the default configuration, use no qos command.

Syntax
qos cos-id
no qos

Parameter
cos-id —— The priority of port. It ranges from 0 to 7, which represent
CoS0-CoS7 respectively. By default, the priority is 0.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
Port priority is one property of the port. When the port priority is specified,

the data will be classified into the egress queue based on the CoS value of

the ingress port and the mapping relation between the CoS and TC in IEEE
802.1P.

Example
Configure the priority of port 5 as 3:
T2600G-52TS(config)# interface gigabitEthernet 1/0/5
T2600G-52TS(config-if)# qos 3
284

30.3

qos port-priority

Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos port-priority command is used to configure priority level based on

port. To return to the default configuration, use no qos port-priority
command.

Syntax
qos port-priority dot1p-priority
no qos port-priority

Parameter
dot1p-priority—— The priority of port. It ranges from 0 to 7, which represent

CoS0-CoS7 respectively. By default, the priority is 0.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
Port priority is one property of the port. When the port priority is specified,

the data will be classified into the egress queue based on the CoS value of

the ingress port and the mapping relation between the CoS and TC in IEEE
802.1P.

Example
Configure the priority of port 5 as 3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)# qos port-priority 3
285

30.4

qos trust mode

Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos trust mode command is used to configure qos trust-mode for ports.
Packets are mapped to different priority levels in three modes.

Syntax
qos trust mode { untrust | dot1p | dscp }

Parameter
untrust—— In untrust mode, packets are mapped to different priority levels
based on the port priority.

dot1p——In dot1p mode, packets with VLAN tag will be processed according
to the 802.1p priority configuration, and packets without VLAN tag will be
processed according to the port priority.

dscp——In dscp mode, IP packets will be processed according to the dscp

priority configuration, and other packets will be processed according to the
port priority.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the trust-mode of port 2 as dot1p:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# qos trust mode dot1p
286

30.5

qos cos

Note: Only T2600G-18TS supports this command.

Description
The qos cos command is used to enable the mapping relation between

IEEE802.1P Priority and TC egress queue. To disable the mapping relation,
use no qos cos command.

Syntax
qos cos
no qos cos

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
IEEE 802.1P gives the Pri field in IEEE 802.1Q tag a recommended definition.
When the mapping relation between IEEE 802.1P Priority and TC egress

queue is enabled, the data will be classified into the egress queue based on
this mapping relation.

Example
Enable the mapping relation between IEEE 802.1P Priority and egress queue:
T2600G-18TS (config)# qos cos

30.6

qos dscp

Note: Only T2600G-18TS and T2600G-52TS support this command.

287

Description
The qos dscp command is used to enable the mapping relation between
DSCP Priority and CoS value. To disable the mapping relation, use no qos
dscp command.

Syntax
qos dscp
no qos dscp

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
DSCP (DiffServ Code Point) is a new definition to IP ToS field given by IEEE.

DSCP priorities are mapped to the corresponding 802.1p priorities. IP

datagram will be classified into the egress queue based on the mapping

relation between DSCP priority and CoS value.

Example
Enable the mapping relation between DSCP Priority and CoS value:
T2600G-52TS(config)# qos dscp

30.7

qos queue cos-map

Note: Only T2600G-18TS and T2600G-52TS support this command.

Description
The qos queue cos-map command is used to configure the mapping relation

between IEEE 802.1P priority tag/IEEE 802.1Q tag, CoS value and the TC
egress queue. To return to the default configuration, use no qos queue

cos-map command. When 802.1P Priority is enabled, the packets with
288

802.1Q tag are mapped to different priority levels based on 802.1P priority
mode. The untagged packets are mapped based on port priority mode.

Syntax
qos queue cos-map { tag/cos-id } { tc-id }
no qos queue cos-map

Parameter
tag/cos-id —— The 8 priority levels defined by IEEE 802.1P or the priority

level the packets with tag are mapped to, which ranges from CoS 0 to CoS 7.

tc-id —— The egress queue the packets with tag are mapped to. It ranges
from 0 to 7, which represents TC0 toTC7 respectively.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
1.

By default, the mapping relation between tag/cos and the egress queue
is:

0/CoS 0-TC1, 1/CoS 1-TC0, 2/CoS 2-TC2, 3/CoS 3-TC3, 4/CoS
4-TC4, 5/CoS 5-TC5, 6/CoS 6-TC6, 7/CoS 7-TC7.
2.

Among the priority levels TC0-TC7, the bigger value, the higher

priority.

Example
Map CoS 5 to TC 2:
T2600G-52TS(config)# qos queue cos-map 5 2

289

30.8

qos cos-map

Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos cos-map command is used to configure the mapping relation

between IEEE 802.1P priority and the TC egress queue. To return to the
default configuration, use no qos cos-map command. The dscp mapping

priority level, the 802.1p remapping priority level, and port priority level are all
mapped to TC egress queue based on qos cos-map finally.

Syntax
qos cos-map { dot1p-priority } {tc-queue}
no qos cos-map

Parameter
dot1p-priority —— The 8 priority levels defined by IEEE 802.1P or the priority
level the packets with tag are mapped to, which ranges from 0 to 7.

tc-queue—— The egress queue the packets with tag are mapped to. It
ranges from 0 to 7, which represents TC0 toTC7 respectively.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
1.

By default, the mapping relation between tag/cos and the egress queue
is:

0/CoS 0-TC1, 1/CoS 1-TC0, 2/CoS 2-TC2, 3/CoS 3-TC3, 4/CoS

4-TC4, 5/CoS 5-TC5, 6/CoS 6-TC6, 7/CoS 7-TC7.
2.

Among the priority levels TC0-TC7, the bigger value, the higher

priority.

290

Example
Map CoS 5 to TC 2:
T2600G-28TS(config)# qos cos-map 5 2

30.9

qos dot1p-remap

Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos dot1p-remap command is used to configure the 802.1P Priority
Remapping relation for ports. The 802.1p priority value of ingress packets will

be remapped to a new one. To return to the default configuration, use no qos
dot1p-remap command.

Syntax
qos dot1p-remap {dot1p-priority} {new-dot1p-priority}
no qos dot1p-remap

Parameter
dot1p-priority ——802.1p priority value.
new-dot1p-priority ——A new 802.1p priority value.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
By default, the 802.1p priority remapping relation maps the 802,1p priority
value to itself.

291

Example
Remap 802,1p priority value 1 to 2 on port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# qos dot1p-remap 1 2

30.10 qos queue dscp-map (For T2600G-18TS only)
Description
The qos queue dscp-map command is used to configure the mapping

relation between DSCP Priority and the CoS value. To return to the default
configuration, use no qos queue dscp-map command. DSCP (DiffServ Code

Point) is a new definition to IP ToS field given by IEEE. This field is used to
divide IP datagram into 64 priorities. When DSCP Priority is enabled, IP

datagram are mapped to different priority levels based on DSCP priority
mode; non-IP datagram with IEEE 802.1Q tag are mapped to different priority

levels based on IEEE 802.1P priority mode if IEEE 802.1P Priority is enabled;
the untagged non-IP datagram are mapped based on port priority mode.

Syntax
qos queue dscp-map { dscp-list } { tc-id }
no qos queue dscp-map

Parameter
dscp-list —— List of DSCP value. One or several DSCP values can be typed

using comma to separate. Use a hyphen to designate a range of values, for

instance, 1,4-7,11 indicates choosing 1,4,5,6,7,11. The DSCP value ranges
from 0 to 63.

tc-id —— The priority level the packets with tag are mapped to, which ranges
from TC 0 to TC 7.

Command Mode
Global Configuration Mode

292

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
By default, the mapping relation between DSCP value and the egress queue is:

(0-7)-TC 0, (8-15)-TC 1, (16-23)-TC 2, (24-31)-TC 3, (32-39)-TC 4, (40-47)-TC

5, (48-55)-TC 6, (56-63)-TC 7.

Example
Map DSCP values 10-12 to TC 2:
T2600G-18TS(config)# qos queue dscp-map 10-12 2

30.11 qos queue dscp-map (For T2600G-52TS only)
Description
The qos queue dscp-map command is used to configure the mapping

relation between DSCP Priority and the CoS value. To return to the default
configuration, use no qos queue dscp-map command. DSCP (DiffServ Code

Point) is a new definition to IP ToS field given by IEEE. This field is used to
divide IP datagram into 64 priorities. When DSCP Priority is enabled, IP

datagram are mapped to different priority levels based on DSCP priority
mode; non-IP datagram with IEEE 802.1Q tag are mapped to different priority

levels based on IEEE 802.1P priority mode if IEEE 802.1P Priority is enabled;
the untagged non-IP datagram are mapped based on port priority mode.

Syntax
qos queue dscp-map { dscp-list } { cos-id }
no qos queue dscp-map

Parameter
dscp-list —— List of DSCP value. One or several DSCP values can be typed

using comma to separate. Use a hyphen to designate a range of values, for
293

instance, 1,4-7,11 indicates choosing 1,4,5,6,7,11. The DSCP value ranges
from 0 to 63.

cos-id —— The priority level the packets with tag are mapped to, which

ranges from CoS 0 to CoS 7.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
By default, the mapping relation between DSCP value and the CoS value is:

(0-7)-CoS 0, (8-15)-CoS 1, (16-23)-CoS 2, (24-31)-CoS 3, (32-39)-CoS 4,

(40-47)-CoS 5, (48-55)-CoS 6, (56-63)-CoS 7.

Example
Map DSCP values 10-12 to CoS 2:
T2600G-52TS(config)# qos queue dscp-map 10-12 2

30.12 qos dscp-map
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos dscp-map command is used to configure the mapping relation

between DSCP Priority and the CoS value for ports. To return to the default
configuration, use no qos dscp-map command. DSCP (DiffServ Code Point)
is a new definition to IP ToS field given by IEEE. This field is used to divide IP

datagram into 64 priorities. IP datagram are mapped to different priority
levels.

Syntax
qos dscp-map {dscp-value-list} {dot1p-priority}
294

no qos dscp-map

Parameter
dscp-value-list —— List of DSCP value. One or several DSCP values can be
typed using comma to separate. Use a hyphen to designate a range of values,

for instance, 1,4-7,11 indicates choosing 1,4,5,6,7,11. The DSCP value ranges

from 0 to 63.

dot1p-priority —— The priority level the packets are mapped to, which
ranges from CoS 0 to CoS 7.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
By default, the mapping relation between DSCP value and the CoS value is:

(0-7)-CoS 0, (8-15)-CoS 1, (16-23)-CoS 2, (24-31)-CoS 3, (32-39)-CoS 4,

(40-47)-CoS 5, (48-55)-CoS 6, (56-63)-CoS 7.

Example
Map DSCP values 10-12 to CoS 2 on port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# qos dscp-map 10-12 2

30.13 qos dscp-remap
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The qos dscp-remap command is used to configure the dscp remapping

relation for ports. The dscp value of ingress packets will be remapped to a
295

new dscp value. To return to the default configuration, use no qos
dscp-remap command.

Syntax
qos dscp-remap {dscp-value-list} {new-dscp-value}
no qos dscp-remap

Parameter
dscp-value-list —— List of DSCP value. One or several DSCP values can be

typed using comma to separate. Use a hyphen to designate a range of values,
for instance, 1,4-7,11 indicates choosing 1,4,5,6,7,11. The DSCP value ranges

from 0 to 63.

new-dscp-value ——A new DSCP value.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
By default, the DSCP remapping relation maps the DSCP value to itself.

Example
Remap DSCP values 10-12 to 2 on port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# qos dscp-remap 10-12 2

30.14 qos queue mode
Description
The qos queue mode command is used to configure the Schedule Mode. To

return to the default Equal-Mode, use no qos queue mode command. When
296

the network is congested, the program that many packets complete for
resources must be solved, usually in the way of queue scheduling. The switch

will control the forwarding sequence of the packets according to the priority
queues and scheduling algorithms you set. On this switch, the priority levels
are labeled as TC0, TC1,TC2 … TC7.

Syntax
qos queue mode { sp | wrr | spwrr | equ }
no qos queue mode

Parameter
sp —— Strict-Priority Mode. In this mode, the queue with higher priority will
occupy the whole bandwidth. Packets in the queue with lower priority are sent
only when the queue with higher priority is empty.

wrr —— Weight Round Robin Mode. In this mode, packets in all the queues
are sent in order based on the weight value for each queue. The weight values

of TC0, TC1, TC2, TC3, TC4, TC5,TC6 and TC7 are customized in qos queue

weight command and their default values are 1, 2, 4, 8, 16, 32, 64 and 127
respectively.

spwrr —— Strict-Priority + Weight Round Robin Mode. In this mode, the

switch provides two scheduling groups, SP group and WRR group. SP group

is processed prior to WRR group. Queues in SP group are scheduled strictly
based on Strict-Priority mode while the queues inside WRR group follow the

WRR mode. In SP+WRR mode, TC7 and the queue with its weight value set as

0 are in the SP group; other queues, with none-zero weight value, belong to

the WRR group and the weight value can be customized in qos queue weight
command. The weight values of TC0, TC1, TC2, TC3, TC4, TC5 and TC6 are 1,

2, 4, 8, 16, 32 and 64 respectively, while the value of TC7 is 0 and
non-configurable.

equ —— Equal-Mode. In this mode, all the queues occupy the bandwidth

equally. The weight value ratio of all the queues is 1:1:1:1:1:1:1:1

Command Mode
Global Configuration Mode
297

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the Schedule Mode as Weight Round Robin Mode:
T2600G-28TS(config)# qos queue mode wrr

30.15 qos queue weight
Description
The qos queue weight command is used to configure weight value of each
queue after the Schedule Mode is specified as WRR or SP+WRR. The switch

will control the forwarding sequence of the packets according to the priority
queues and scheduling algorithms you set. On this switch, the priority levels
are labeled as TC0, TC1, TC2, TC3, TC4, TC5,TC6 and TC7.

Syntax
qos queue weight { tc-id } { weight-value }

Parameter
tc-id —— The ID of the TC queue, ranging from 0 to 7.
weight-value —— Configure the weight value of the specified TC queue.
When the schedule mode is specified as WRR, the weight value ranges from 1
to 127. The 8 queues will take up the bandwidth according to their ratio. The

default values of TC0, TC1, TC2, TC3, TC4, TC5,TC6 and TC7 are 1, 2, 4, 8, 16,
32, 64 and 127 respectively.

When the schedule mode is specified as SP+WRR, the weight value ranges

from 0 to 127. TC7 and the queue with its weight value set as 0 are in the SP
group; other queues, with none-zero weight value, belong to the WRR group.

In this SP+WRR scheduling mode, the queues in the SP group is scheduled

preferentially (TC6>TC5>TC4>TC3>TC2>TC1>TC0 in strict priority). When
there is no packets to be sent in the SP group, the queues in the WRR group

will be scheduled according to the weight value of each queue. The default
298

weight values of TC0, TC1, TC2, TC3, TC4, TC5 and TC6 are 1, 2, 4, 8, 16, 32
and 64 respectively, while the value of TC7 is 0 and non-configurable.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the Schedule Mode as Weight Round Robin Mode, with the weight
values of TC0, TC1, TC2 and TC3 as 4, 7, 15 and 24:
T2600G-28TS(config)# qos queue mode wrr
T2600G-28TS(config)# qos queue weight 0 4
T2600G-28TS(config)# qos queue weight 1 7
T2600G-28TS(config)# qos queue weight 2 15
T2600G-28TS(config)# qos queue weight 3 24

30.16 show qos interface
Note: Only T2600G-18TS and T2600G-52TS support this command.

Description
The show qos interface command is used to display the configuration of
QoS based on port priority.

Syntax
show qos interface [ gigabitEthernet port-list ] [ port-channel lagid-list ]

Parameter

port-list ——The list of Ethernet ports.
lagid-list —— The list of LAGs.

299

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of QoS for all ports and LAGs:
T2600G-52TS# show qos interface
Display the configuration of QoS for ports 1/0/1-4:
T2600G-52TS# show qos interface gigabitEthernet 1/0/1-4

30.17 show qos cos-map
Description
The show qos cos-map command is used to display the configuration of IEEE
802.1P Priority and the mapping relation between cos-id and tc-id.

Syntax
show qos cos-map

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of IEEE 802.1P Priority and the mapping relation
between cos-id and tc-id:

T2600G-28TS# show qos cos-map

300

30.18 show qos dot1p-remap interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The show qos dot1p-remap interface command is used to display IEEE
802.1p priority remapping configuration for ports.

Syntax
show qos dot1p-remap interface [ gigabitEthernet port-id | port-channel

port-channel-id ]

Parameter
port-id —— Specify the port number to show qos dscp-map configuration.
port-channel-id —— Specify the port channel number to show qos dscp-map
configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of IEEE 802.1p priority remapping for port 1/0/2:
T2600G-28TS# show qos dot1p-remap interface gigabitEthernet 1/0/2

30.19 show qos dscp-map
Note: Only T2600G-18TS and T2600G-52TS support this command.

Description
The show qos dscp-map command is used to display the configuration of
DSCP Priority.

301

Syntax
show qos dscp-map

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of DSCP Priority:
T2600G-18TS# show qos dscp-map

30.20 show qos dscp-map interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The show qos dscp-map interface command is used to display the
configuration of DSCP Priority for ports.

Syntax
show qos dscp-map interface [gigabitEthernet port-id | port-channel

port-channel-id ]

Parameter
port-id —— Specify the port number to show qos dscp-map configuration.
port-channel-id —— Specify the port channel number to show qos dscp-map
configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
302

Example
Display the configuration of DSCP Priority for port 1/0/2:
T2600G-28TS# show qos dscp-map interface gigabitEthernet 1/0/2

30.21 show qos dscp-remap interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The show qos dscp-remap interface command is used to display the
configuration of dscp-remap for ports.

Syntax
show qos dscp-remap interface [ gigabitEthernet port-id | port-channel

port-channel-id ]

Parameter
port-id —— Specify the port number to show qos dscp-map configuration.
port-channel-id —— Specify the port channel number to show qos dscp-map
configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of dscp remap for port 1/0/2:
T2600G-28TS# show qos dscp-remap interface gigabitEthernet 1/0/2

303

30.22 show qos port-priority interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The show qos port-priority interface command is used to display the

configuration of port-priority to cos-id mapping relation for ports.

Syntax
show qos port-priority interface [ gigabitEthernet port-id | port-channel

port-channel-id ]

Parameter
port-id —— Specify the port number to show qos dscp-map configuration.
port-channel-id —— Specify the port channel number to show qos dscp-map
configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of port-priority to cos-id mapping relation for port
1/0/2:

T2600G-28TS# show qos port-priority interface gigabitEthernet 1/0/2

30.23 show qos trust-mode interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

304

Description
The show qos trust-mode interface command is used to display the

configuration of qos trust-mode for ports.

Syntax
show qos trust-mode interface [ gigabitEthernet port-id | port-channel

port-channel-id ]

Parameter
port-id —— Specify the port number to show qos dscp-map configuration.
port-channel-id —— Specify the port channel number to show qos dscp-map
configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of trust-mode for port 1/0/2:
T2600G-28TS# show qos trust-mode interface gigabitEthernet 1/0/2

30.24 show qos queue mode
Description
The show qos queue mode command is used to display the schedule rule of
the egress queues.

Syntax
show qos queue mode

Command Mode
Privileged EXEC Mode and Any Configuration Mode
305

Privilege Requirement
None.

Example
Display the schedule rule of the egress queues:
T2600G-28TS# show qos queue mode

30.25 show qos status
Note: Only T2600G-18TS and T2600G-52TS support this command.

Description
The show qos status command is used to display the status of IEEE 802.1P
priority and DSCP priority.

Syntax
show qos status

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the status of IEEE 802.1P priority and DSCP priority:
T2600G-52TS# show qos status

306

Chapter 31 Port Mirror Commands
Port Mirror refers to the process of forwarding copies of packets from one port to a monitoring
port. Usually, the monitoring port is connected to data diagnose device, which is used to
analyze the monitored packets for monitoring and troubleshooting the network.

31.1

monitor session destination interface
Description
The monitor session destination interface command is used to configure
the monitoring port. Each monitor session has only one monitoring port. To

change the monitoring port, use the monitor session destination interface

command by changing the port value. The no monitor session command is
used to delete the corresponding monitoring port or monitor session.

Syntax
monitor session session_num destination interface gigabitEthernet port
no monitor session session_num destination interface gigabitEthernet

port

no monitor session session_num

Parameter
session_num —— The monitor session number, can only be specified as 1.
port —— The monitoring port number.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Create monitor session 1 and configure port 1/0/1 as the monitoring port:
307

T2600G-28TS(config)#

monitor

session

1

destination

interface

gigabitEthernet 1/0/1
Delete the monitoring port 1/0/2 from monitor session 1:
T2600G-28TS(config)# no monitor session 1 destination interface
gigabitEthernet 1/0/2
Delete the monitor session 1:
T2600G-28TS(config)# no monitor session 1

31.2

monitor session source interface
Description
The monitor session source interface command is used to configure the

monitored port. To delete the corresponding monitored port, use no monitor
session source interface command.

Syntax
monitor session session_num source interface gigabitEthernet port-list

mode

no monitor session session_num source interface gigabitEthernet port-list

mode

Parameter
session_num —— The monitor session number, can only be specified as 1.
port-list —— List of monitored port. It is multi-optional.
mode —— The monitor mode. There are three options: rx, tx and both. Rx

(ingress monitoring mode), means the incoming packets received by the

monitored port will be copied to the monitoring port. Tx (egress monitoring
mode), indicates the outgoing packets sent by the monitored port will be

copied to the monitoring port. Both (ingress and egress monitoring), presents
the incoming packets received and the outgoing packets sent by the
monitored port will both be copied to the monitoring port.
308

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

User Guidelines
1.

The monitoring port is corresponding to current interface configuration
mode.

2.

Monitored ports number is not limited, but it can’t be the monitoring port
at the same time.

3.

Whether the monitoring port and monitored ports are in the same VLAN

or not is not demanded strictly.
4.

The monitoring port and monitored ports cannot be link-aggregation

member.

Example
Create monitor session 1, then configure port 4, 5, 7 as monitored port and
enable ingress monitoring:
T2600G-28TS(config)#

monitor

session

1

source

interface

gigabitEthernet 1/0/4-5,1/0/7 rx
Delete port 4 in monitor session 1 and its configuration:
T2600G-28TS(config)#

no

monitor

session

1

source

interface

gigabitEthernet 1/0/4 rx

31.3

show monitor session
Description
The show monitor session command is used to display the configuration of

port monitoring.

309

Syntax
show monitor session [session_num]

Parameter
session_num —— The monitor session number, can only be specified as 1. It

is optional.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the monitoring configuration of monitor session 1:
T2600G-28TS(config)# show monitor session 1

310

Chapter 32 Port Isolation Commands
Port Isolation provides a method of restricting traffic flow to improve the network security by
forbidding the port to forward packets to the ports that are not on its forwarding port list.

32.1

port isolation
Description
The port isolation command is used to configure the forward port/port

channel list of a port/port channel, so that this port/port channel can only

communicate with the ports/port channels on its list. To delete the
corresponding configuration, use no port isolation command.

Syntax
port isolation { [ gi-forward-list gi-forward-list ] [ po-forward-list

po-forward-list ] }
no port isolation

Parameter
gi-forward-list —— The list of Ethernet ports.
po-forward-list —— The list of port channels.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Set port 1, 2, 4 and port channel 2 to the forward list of port 1/0/5:
T2600G-28TS(config)# interface gigabitEthernet 1/0/5
311

T2600G-28TS(config-if)#

port

isolation

gi-forward-list

1/0/1-2,1/0/4

po-forward-list 2
Set all Ethernet ports and port channels to forward list of port 1/0/2, namely
restore to the default setting:

T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# no port isolation

32.2

show port isolation interface
Description
The show port isolation interface command is used to display the forward

port list of a port/port channel.

Syntax
show port isolation interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameter
port —— The number of Ethernet port you want to show its forward port list,

in the format of 1/0/2.

port-channel-id —— The ID of port channel you want to show its forward port
list, ranging from 1 to 6.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the forward-list of port 1/0/2:
T2600G-28TS# show port isolation interface gigabitEthernet 1/0/2
312

Display the forward-list of all Ethernet ports and port channels:
T2600G-28TS# show port isolation interface

313

Chapter 33 Loopback Detection Commands
With loopback detection feature enabled, the switch can detect loops using loopback

detection packets. When a loop is detected, the switch will display an alert or further block the
corresponding port according to the configuration.

33.1

loopback-detection (global)
Description
The loopback-detection command is used to enable the loopback detection

function globally. To disable it, use no loopback detection command.

Syntax
loopback-detection
no loopback-detection

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the loopback detection function globally:
T2600G-28TS(config)# loopback-detection

33.2

loopback-detection interval
Description
The loopback-detection interval command is used to define the interval of

sending loopback detection packets from switch ports to network, aiming at
detecting network loops periodically.
314

Syntax
loopback-detection interval interval-time

Parameter
interval-time —— The interval of sending loopback detection packets. It
ranges from 1 to 1000 seconds. By default, this value is 30.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the interval-time as 50 seconds:
T2600G-28TS(config)# loopback-detection interval 50

33.3

loopback-detection recovery-time
Description
The loopback-detection recovery-time command is used to configure the

time after which the blocked port would automatically recover to normal
status.

Syntax
loopback-detection recovery-time recovery-time

Parameter
recovery-time —— The time after which the blocked port would automatically
recover to normal status, and the loopback detection would restart. It ranges
from 60 to 1000000 seconds. By default, this value is 90.

Command Mode
Global Configuration Mode
315

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the recovery-time as 70 seconds:
T2600G-28TS(config)# loopback-detection recovery-time 70

33.4

loopback-detection (interface)
Description
The loopback-detection command is used to enable the loopback

detection function of the specified port. To
loopback-detection command.

disable it,

use no

Syntax
loopback-detection
no loopback-detection

Command Mode
Interface Configuration Mode (interface gigabitEthernet | interface range

gigabitEthernet | interface port-channel | interface range port-channel )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the loopback detection function of ports 1-3:
T2600G-28TS(config)# interface range gigabitEthernet 1/0/1-3
T2600G-28TS(Config-if-range)# loopback-detection

316

33.5

loopback-detection config process-mode
Description
The loopback-detection config process-mode command is used to

configure the process-mode for the ports by which the switch copes with the

detected loops. You also need to configure the recovery mode to remove the
block status of the port or VLAN when the process-mode is Port Based or
VLAN Based.

Syntax
loopback-detection config process-mode { alert | port-based | vlan-based }

Parameter
alert —— When a loop is detected, the switch will send a trap message and
generate an entry on the log file. It is the default setting.

port-based —— When a loop is detected, the switch will send a trap message

and generate an entry on the log file. In addition, the switch will block the port
on which the loop is detected and no packets can pass through the port.

vlan-based —— When a loop is detected, the switch will send a trap message
and generate an entry on the log file. In addition, the switch will block the

VLAN in which the loop is detected and only the packets of the blocked VLAN
cannot pass through the port.

Command Mode
Interface Configuration Mode (interface gigabitEthernet | interface range
gigabitEthernet | interface port-channel | interface range port-channel )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the loopback detection process-mode as port-based for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2

317

T2600G-28TS(config-if)# loopback-detection config process-mode
port-based

33.6

loopback-detection config recovery-mode
Description
The loopback-detection config recovery-mode command is used to

configure the recovery-mode for the ports by which the switch copes with
the detected loops. Using this command you can remove the block status of

the port or VLAN when the process-mode is Port Based or VLAN Based.

Syntax
loopback-detection config recovery-mode { auto | manual }

Parameter
auto —— Block status can be automatically removed after recovery time.
manual —— Block status can only be removed manually.

Command Mode
Interface Configuration Mode (interface gigabitEthernet | interface range
gigabitEthernet | interface port-channel | interface range port-channel )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the loopback detection recovery-mode as manual for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# loopback-detection config recovery-mode
manual

318

33.7

loopback-detection recover
Description
The loopback-detection recover command is used to remove the block

status of selected ports, recovering the blocked ports to normal status,

Syntax
loopback-detection recover

Command Mode
Interface Configuration Mode (interface gigabitEthernet | interface range
gigabitEthernet | interface port-channel | interface range port-channel )

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Recover the blocked port 1/0/2 to normal status:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# loopback-detection recover

33.8

show loopback-detection global
Description
The show loopback-detection global command is used to display the global

configuration of loopback detection function such as loopback detection
global status, loopback detection interval and loopback detection recovery
time.

Syntax
show loopback-detection global

Command Mode
Privileged EXEC Mode and Any Configuration Mode
319

Privilege Requirement
None.

Example
Display the global configuration of loopback detection function:
T2600G-28TS# show loopback-detection global

33.9

show loopback-detection interface
Description
The show loopback-detection interface command is used to display the
configuration of loopback detection function and the status of the specified
Ethernet port.

Syntax
show loopback-detection interface [ gigabitEthernet port | port-channel

lagid ] [ detail ]

Parameter
port —— The Ethernet port number.
lagid —— The number of LAG, ranging from 1 to 14.
detail —— Displays the loop status and block status of the VLAN which the

specified port belongs to.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of loopback detection function and the status of all
ports:

T2600G-28TS# show loopback-detection interface
320

Display the configuration of loopback detection function and the status of
port 5:

T2600G-28TS# show loopback-detection interface gigabitEthernet 1/0/5

321

Chapter 34 DDM Commands
Note: T2600G-28MPS doesn’t support these commands.
The DDM (Digital Diagnostic Monitoring) function allows the user to monitor the status of the

SFP modules inserted into the SFP ports on the switch. The user can choose to shut down the
monitoring SFP port automatically when specified parameter exceeds the alarm threshold or
warning threshold. The monitoring parameters include: Temperature, Voltage, Bias Current, Tx
Power and Rx Power.

34.1

ddm state enable
Description
The ddm state enable command is used to enable the DDM function on the
specified SFP port.

Use the no ddm state enable command to disable the DDM function on this

port.

Syntax
ddm state enable
no ddm state enable

Default Setting
Enabled on all the SFP ports.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Enable DDM function on port 1/0/25:
T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm state enable
322

34.2

ddm shutdown
Description
The ddm shutdown command is used to configure whether to shut down the

port when an exceeding alarm threshold or warning threshold event is
encountered.

Syntax
ddm shutdown { none | warning | alarm }

Parameter
none —— The port will never be shut down regardless of the exceeding alarm
threshold and warning threshold events.

warning —— Shut down the port when an exceeding warning threshold event
is encountered.

alarm —— Shut down the port when an exceeding alarm threshold event is
encountered.

Default Setting
none, which means the port will never be shut down regardless of the
exceeding alarm threshold and warning threshold events.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Shut down the port 1/0/25 when an exceeding warning threshold event is
encountered:

T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm shutdown warning

323

34.3

ddm temperature_threshold
Description
The ddm temperature_threshold command is used to configure the
threshold of the DDM temperature value.

Syntax
ddm temperature_threshold { high_alarm | high_warning | low_alarm |
low_warning } value

Parameter
high_alarm —— Specify the highest threshold for the alarm. When the

operating parameter rises above the value hereinafter, action associated with
the alarm will be taken.

high_warning ——Specify the highest threshold for the warning. When the

operating parameter rises above the value hereinafter, action associated with
the warning will be taken.

low_alarm ——Specify the lowest threshold for the alarm. When the

operating parameter falls below the value hereinafter, action associated with
the alarm will be taken.

low_warning —— Specify the lowest threshold for the warning. When the
operating parameter falls below the value hereinafter, action associated with
the warning will be taken.

value —— Enter the threshold value in Celsius.

Default Setting
None.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

324

Example
Configure the high_alarm threshold of DDM temperature on the port 1/0/25
as 5:

T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm temperature_threshold high_alarm 5

34.4

ddm voltage_threshold
Description
The ddm voltage_threshold command is used to configure the threshold of

the DDM voltage value.

Syntax
ddm voltage_threshold { high_alarm | high_warning | low_alarm |
low_warning } value

Parameter
high_alarm —— Specify the highest threshold for the alarm. When the

operating parameter rises above the value hereinafter, action associated with
the alarm will be taken.

high_warning ——Specify the highest threshold for the warning. When the

operating parameter rises above the value hereinafter, action associated with
the warning will be taken.

low_alarm ——Specify the lowest threshold for the alarm. When the

operating parameter falls below the value hereinafter, action associated with
the alarm will be taken.

low_warning —— Specify the lowest threshold for the warning. When the
operating parameter falls below the value hereinafter, action associated with
the warning will be taken.

value —— Enter the threshold value in Volt.

325

Default Setting
None.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Configure the high_alarm threshold of DDM voltage on the port 1/0/25 as 5:
T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm voltage_threshold high_alarm 5

34.5

ddm bias_current_threshold
Description
The ddm bias_current_threshold command is used to configure the
threshold of the DDM Bias Current value.

Syntax
ddm bias_current_threshold { high_alarm | high_warning | low_alarm |
low_warning } value

Parameter
high_alarm —— Specify the highest threshold for the alarm. When the

operating parameter rises above the value hereinafter, action associated with

the alarm will be taken.

high_warning ——Specify the highest threshold for the warning. When the

operating parameter rises above the value hereinafter, action associated with
the warning will be taken.

low_alarm ——Specify the lowest threshold for the alarm. When the

operating parameter falls below the value hereinafter, action associated with
the alarm will be taken.

326

low_warning —— Specify the lowest threshold for the warning. When the
operating parameter falls below the value hereinafter, action associated with
the warning will be taken.

value —— Enter the threshold value in mA.

Default Setting
None.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Configure the high_alarm threshold of DDM Bias Current on the port 1/0/25
as 5:

T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm bias_current_threshold high_alarm 5

34.6

ddm tx_power_threshold
Description
The ddm tx_power_threshold command is used to configure the threshold

of the DDM Tx Power value.

Syntax
ddm tx_power_threshold { high_alarm | high_warning | low_alarm |
low_warning } value

Parameter
high_alarm —— Specify the highest threshold for the alarm. When the

operating parameter rises above the value hereinafter, action associated with
the alarm will be taken.

327

high_warning ——Specify the highest threshold for the warning. When the

operating parameter rises above the value hereinafter, action associated with
the warning will be taken.

low_alarm ——Specify the lowest threshold for the alarm. When the

operating parameter falls below the value hereinafter, action associated with
the alarm will be taken.

low_warning —— Specify the lowest threshold for the warning. When the
operating parameter falls below the value hereinafter, action associated with
the warning will be taken.

value —— Enter the threshold value in mW.

Default Setting
None.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Configure the high_alarm threshold of DDM Tx Power on the port 1/0/25 as 5:
T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm tx_power_threshold high_alarm 5

34.7

ddm rx_power_threshold
Description
The ddm rx_power_threshold command is used to configure the threshold

of the DDM Rx Power value.

Syntax
ddm rx_power_threshold { high_alarm | high_warning | low_alarm |
low_warning } value

328

Parameter
high_alarm —— Specify the highest threshold for the alarm. When the

operating parameter rises above the value hereinafter, action associated with
the alarm will be taken.

high_warning ——Specify the highest threshold for the warning. When the

operating parameter rises above the value hereinafter, action associated with
the warning will be taken.

low_alarm ——Specify the lowest threshold for the alarm. When the

operating parameter falls below the value hereinafter, action associated with
the alarm will be taken.

low_warning —— Specify the lowest threshold for the warning. When the
operating parameter falls below the value hereinafter, action associated with
the warning will be taken.

value —— Enter the threshold value in mW.

Default Setting
None.

Command Mode
Interface Configuration Mode (interface fastEthernet / interface range
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet)

Example
Configure the high_alarm threshold of DDM Rx Power on the port 1/0/25 as 5:
T2600G-28TS(config)#interface gigabitEthernet 1/0/25
T2600G-28TS(config-if)#ddm rx_power_threshold high_alarm 5

34.8

show ddm configuration
Description
The show ddm configuration command is used to display the DDM
configuration.

329

Syntax
show ddm configuration { state | temperature | voltage | bias_current |

tx_power | rx_power }

Parameter
state —— Display the DDM configuration state.
temperature —— Displays the threshold of the DDM temperature value.
voltage —— Displays the threshold of the DDM Voltage value.
bias_current —— Displays the threshold of the DDM Bias Current value.
tx_power —— Displays the threshold of the DDM Tx Power value.
rx_power —— Displays the threshold of the DDM Rx Power value.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Example
View the DDM configuration state:
T2600G-28TS(config)#show ddm configuration state
View the threshold of the DDM Voltage value:
T2600G-28TS(config)#show ddm configuration voltage

34.9

show ddm status
Description
The show ddm status command is used to display the DDM status, which is

the digital diagnostic monitoring status of SFP modules inserting into the
switch’s SFP ports.

Syntax
show ddm status

330

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Example
View the DDM status:
T2600G-28TS(config)#show ddm status

331

Chapter 35 ACL Commands
ACL (Access Control List) is used to filter data packets by configuring a series of match

conditions, operations and time ranges. It provides a flexible and secured access control policy
and facilitates you to control the network security.

35.1

time-range
Description
The time-range command is used to add Time-Range. To delete the

corresponding Time-Range, use no time-range command. A time-range

based ACL enables you to implement ACL control over packets by
differentiating the time-ranges. A time-range can be specified in each rule in

an ACL. The rule takes effect only when the specified time-range is
configured and the system time is within the time-range.

Syntax
time-range name
no time-range name

Parameter
name —— The Time-Range name, ranging from 1 to 16 characters.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a time-range named tSeg1:
T2600G-28TS(config)# time-range tSeg1

332

35.2

absolute
Description
The absolute command is used to configure a time-range into an

absoluteness mode. To delete the corresponding Absoluteness Mode
time-range, use no absolute command.

Syntax
absolute start start-date end end-date
no absolute

Parameter
start-date —— The start date in Absoluteness Mode, in the format of

MM/DD/YYYY. By default, it is 01/01/1970.

end-date —— The end date in Absoluteness Mode, in the format of

MM/DD/YYYY. By default, it is 12/31/2099. The Absoluteness Mode will be
disabled if the start date and end date are both in default value.

Command Mode
Time-range Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the time-range tSeg1 with time from May 5, 2012 to Oct. 5, 2012:
T2600G-28TS(config)# time-range tSeg1
T2600G-28TS(config-time-range)# absolute start 05/05/2012 end
10/05/2012

333

35.3

periodic
Description
The periodic command is used to configure the time-range into periodic

mode. To delete the corresponding Periodic Mode time-range, use no

periodic command. To delete the corresponding Periodic Mode week-date

time-range, use no periodic week-date command. To delete the

corresponding Periodic Mode time-slice time-range, use no periodic

time-slice command.

Syntax
periodic [week-date week-day] [time-slice1 time-slice] [time-slice2

time-slice] [time-slice3 time-slice] [time-slice4 time-slice]
no periodic
no periodic week-date
no periodic time-slice

Parameter
week-day —— Periodic Mode, in the format of 1-3,6 or daily, weekend,

weekdays. 1-3, 6 represent Monday, Tuesday, Wednesday and Saturday;

daily represents every day; weekend represents weekend and weekdays
represents working day. By default, the Periodic Mode is disabled.

time-slice —— Create the time-slice, in the format of HH:MM-HH:MM.

Command Mode
Time-range Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the time-range tSeg1 with time from 8:30 to 12:00 at weekend:
T2600G-28TS(config)#time-range tSeg1
334

T2600G-28TS(config-time-range)#periodic

week-date

weekend

time-slice1 08:30-12:00

35.4

holiday
Description
The holiday command is used to configure the time-range into Holiday Mode

under Time-range Create Configuration Mode. To delete the corresponding
Holiday Mode time-range, use no holiday command.

Syntax
holiday
no holiday

Command Mode
Time-range Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the time-range tSeg1 into Holiday Mode:
T2600G-28TS(config)#time-range tSeg1
T2600G-28TS(config-time-range)#holiday

35.5

holiday (global)
Description
The holiday command is used to define a holiday. To delete the

corresponding holiday, use no holiday command.

Syntax
holiday name start-date start-date end-date end-date
335

no holiday

Parameter
name —— The holiday name, ranging from 1 to 16 characters.
start-date —— The start date of the holiday, in the format of MM/DD, for
instance, 05/01.

end-date —— The end date of the holiday, in the format of MM/DD, for
instance, 05/03.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Define National Day, configuring the start date as October 1st, and the end
date as October 3rd:

T2600G-28TS(config)#holiday nationalday start-date 10/01 end-date
10/03

35.6

access-list create
Description
The access-list create command is used to create Standard-IP ACL,

Extend-IP ACL, Combined ACL, IPv6 ACL and Packet Content ACL.

Syntax
access-list create access-list-num

Parameter
access-list-num —— ACL ID, ranging from 0 to 4499. The ID range of the
Standard-IP ACL is 500-1499, the Extend-IP ACL is 1500-2499, the
336

Combined ACL is 2500-3499, the IPv6 ACL is 3500-4499 and the Packet

Content ACL is 4500-4999.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a standard-IP ACL whose ID is 523:
T2600G-28TS(config)# access-list create 523

35.7

mac access-list
Description
The mac access-list command is used to create MAC ACL. To set the

detailed configurations for a specified MAC ACL, use mac access-list

command to access Mac Access-list Configuration Mode. To delete the MAC

ACL, use no mac access-list.

Syntax
mac access-list access-list-num
no mac access-list access-list-num

Parameter
access-list-num —— ACL ID, ranging from 0 to 499.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
337

Example
Create a MAC ACL whose ID is 423:
T2600G-28TS(config)# mac access-list 423

35.8

access-list standard
Description
The access-list standard command is used to add Standard-IP ACL rule. To

delete the corresponding rule, use no access-list standard command.
Standard-IP ACLs analyze and process data packets based on a series of

match conditions, which can be the source IP addresses and destination IP
addresses carried in the packets.

Syntax
access-list standard acl-id rule rule-id { deny | permit } [[ sip source-ip ]
smask source-ip-mask] [[ dip destination-ip ] dmask destination-ip-mask ]
[ tseg time-segment ]

no access-list standard acl-id rule rule-id

Parameter
acl-id —— The desired Standard-IP ACL for configuration.
rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

source-ip —— The source IP address contained in the rule.
source-ip-mask —— The source IP address mask. It is required if you typed

the source IP address.

destination-ip —— The destination IP address contained in the rule.
destination-ip-mask —— The destination IP address mask. It is required if you
typed the destination IP address.
338

time-segment —— The time-range for the rule to take effect. By default, it is
not limited.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a Standard-IP ACL whose ID is 520, and add Rule 10 for it. In the rule,

the source IP address is 192.168.0.100, the source IP address mask is
255.255.255.0, the time-range for the rule to take effect is “tRange1”, and the
packets match this rule will be forwarded by the switch:

T2600G-28TS(config)# access-list create 520
T2600G-28TS(config)# access-list standard 520 rule 10 permit sip
192.168.0.100 smask 255.255.255.0 tseg tSeg1

35.9

access-list extended
Description
The access-list extended command is used to add Extended-IP ACL rule. To

delete the corresponding rule, use no access-list extended command.

Syntax
access-list extended acl-id rule rule-id { deny | permit } [[ sip source-ip ]
smask source-ip-mask ] [[ dip destination-ip] dmask destination-ip-mask ]
[ tseg time-segment ] [frag {disable | enable}] [ dscp dscp ] [ s-port s-port ]
[ d-port d-port ] [ tcpflag tcpflag ] [ protocol protocol ] [ tos tos ] [ pre pre ]
no access-list extended acl-id rule rule-id

Parameter
acl-id——The desired Extended-IP ACL for configuration.
339

rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

source-ip —— The source IP address contained in the rule.
source-ip-mask —— The source IP address mask. It is required if you typed
the source IP address.

destination-ip —— The destination IP address contained in the rule.
destination-ip-mask —— The destination IP address mask. It is required if you
typed the destination IP address.

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

frag —— Enable/Disable Fragment. By default, it is disabled. If Fragment is

enabled, this rule will process all the fragments and the last piece of fragment
will be always forwarded.

dscp —— Specify the dscp value, ranging from 0 to 63.
s-port —— The source port number.
d-port —— The destination port number.
tcpflag —— Specify the flag value when using TCP protocol.
protocol —— Configure the value of the matching protocol.
tos —— Enter the IP ToS contained in the rule.
pre —— Enter the IP Precedence contained in the rule.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
340

Example
Create an Extended-IP ACL whose ID is 2220, and add Rule 10 for it. In the

rule, the source IP address is 192.168.0.100, the source IP address mask is
255.255.255.0, the time-range for the rule to take effect is tSeg1, and the
packets match this rule will be forwarded by the switch:

T2600G-28TS(config)# access-list create 2220
T2600G-28TS(config)# access-list extended 2220 rule 10 permit sip
192.168.0.100 smask 255.255.255.0 tseg tSeg1

35.10 access-list combined
Description
The access-list combined command is used to add Combined ACL rule. To

delete the corresponding rule, use no access-list combined command.

Combined ACLs analyze and process data packets based on a series of
match conditions.

Syntax
access-list combined acl-id rule rule-id { deny | permit }

[ [ smac

source-mac ] smask source-mac-mask ] [ [ dmac destination-mac ] dmask

destination-mac-mask ] [ vid vlan-id ] [ type ethernet-type ] [ pri user-pri ]
[ [ sip source-ip ] sip-mask source-ip-mask ] [ [ dip destination-ip ] dip-mask

destination-ip-mask ] [ tseg time-segment ]
no access-list combined acl-id rule rule-id

Parameter
acl-id —— The desired Standard-IP ACL for configuration.
rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

source-mac —— The source MAC address contained in the rule.
341

source-mac-mask —— The source MAC address mask. It is required if you
typed the source MAC address.

destination-mac —— The destination MAC address contained in the rule.
destination-mac-mask —— The destination MAC address mask. It is required
if you typed the destination MAC address.

vlan-id —— The VLAN ID contained in the rule, ranging from 1 to 4094.
ethernet-type —— EtherType contained in the rule, in the format of 4-hex

number.

user-pri —— The user priority contained in the rule, ranging from 0 to 7. By
default, it is not limited.

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

source-ip —— The source IP address contained in the rule.
source-ip-mask —— The source IP address mask. It is required if you typed
the source IP address.

destination-ip —— The destination IP address contained in the rule.
destination-ip-mask —— The destination IP address mask. It is required if you
typed the destination IP address.

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

342

User Guidelines
Before binding a Combined ACL to a VLAN or interface, you should configure

the SDM template as “default” or “enterpriseV4” and save your configurations.
For more information about SDM configuration, refer to sdm prefer.

Example
Create a Combined ACL whose ID is 2700, and add Rule 10 for it. In the rule,

the source MAC address is 00:01:3F:48:16:23, the source MAC address mask
is 11:11:11:11:11:00, the source IP address is 192.168.0.100, the source IP
address mask is 255.255.255.0, the time-range for the rule to take effect is
“tSeg1”, and the packets match this rule will be forwarded by the switch:
T2600G-28TS(config)# access-list create 2700
T2600G-28TS(config)# access-list combined 2700 rule 10 permit smac
00:01:3F:48:16:23 smask 11:11:11:11:11:00 sip 192.168.0.100 sip-mask
255.255.255.0 tseg tSeg1

35.11 access-list ipv6
Description
The access-list ipv6 command is used to add IPv6 ACL rule. To delete the
corresponding rule, use no access-list ipv6 command. Standard-IP ACLs

analyze and process data packets based on a series of match conditions,

which can be the source IP addresses and destination IP addresses carried in
the packets, the DSCP and flow-label value, etc.

Syntax
access-list ipv6 acl-id rule rule-id { deny | permit } [dscp dscp-value]

[flow-label flow-label-value] [ [ sip source-ip ] sip-mask source-ip-mask]

[ [ dip destination-ip ] dip-mask destination-ip-mask ] [ s-port s-port ] [ d-port

d-port ] [ tseg time-segment ]

no access-list ipv6 acl-id rule rule-id

343

Parameter
acl-id —— The desired Standard-IP ACL for configuration.
rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

dscp-value —— Specify the dscp value, ranging from 0 to 63.
flow-label-value —— The IPv6 flow label, which ranges from 0-0xfffff.
source-ip —— The source IP address contained in the rule.
source-ip-mask —— The source IP address mask. It is required if you typed
the source IP address.

destination-ip —— The destination IP address contained in the rule.
destination-ip-mask —— The destination IP address mask. It is required if you
typed the destination IP address.

s-port —— The source port number.
d-port —— The destination port number.
(Note: T2600G-18TS doesn’t support s-port and d-port setting.)

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

344

User Guidelines
Before binding an IPv6 ACL to a VLAN or interface, you should configure the

SDM template as “enterpriseV6” and save your configurations. For more
information about SDM configuration, refer to sdm prefer.

Example
Create an IPv6 ACL whose ID is 3600, and add Rule 10 for it. In the rule, the
source IP address is 3001::1, the source IP address mask is 255.255.255.0,

the time-range for the rule to take effect is “tSeg1”, and the packets match

this rule will be forwarded by the switch:

T2600G-28TS(config)# access-list create 3600
T2600G-28TS(config)# access-list ipv6 3600 rule 10 permit sip 3001::1
sip-mask ffff:ffff:ff00:00ff tseg tSeg1

35.12 rule
Description
The rule command is used to configure MAC ACL rule. To delete the
corresponding rule, use no rule command.

Syntax
rule rule-id { deny | permit } [[ smac source-mac ] smask source-mac-mask ]
[[ dmac destination-mac ] dmask destination-mac-mask ] [ vid vlan-id ] [ type

ethernet-type ] [ pri user-pri ] [ tseg time-segment ]
no rule rule-id

Parameter
rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

source-mac —— The source MAC address contained in the rule.

345

source-mac-mask —— The source MAC address mask. It is required if you
typed the source MAC address.

destination-mac —— The destination MAC address contained in the rule.
destination-mac-mask —— The destination MAC address mask. It is required
if you typed the destination MAC address.

vlan-id —— The VLAN ID contained in the rule, ranging from 1 to 4094.
ethernet-type —— EtherType contained in the rule, in the format of 4-hex

number.

user-pri —— The user priority contained in the rule, ranging from 0 to 7. By
default, it is not limited.

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

Command Mode
MAC Access-list Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a MAC ACL whose ID is 20, and add Rule 10 for it. In the rule, the

source MAC address is 00:01:3F:48:16:23, the source MAC address mask is
11:11:11:11:11:00, VLAN ID is 2, the user priority is 5, the time-range for the
rule to take effect is “tRange1”, and the packets match this rule will be
forwarded by the switch:

T2600G-28TS(config)# mac access-list 20
T2600G-28TS(config-mac-acl)# rule 10 permit smac 00:01:3F:48:16:23
smask 11:11:11:11:11:00 vid 2 pri 5 tseg tRange1

346

35.13 access-list policy name
Description
The access-list policy name command is used to add Policy. To delete the

corresponding Policy, use no access-list policy name command. A Policy is

used to control the data packets those match the corresponding ACL rules
by configuring ACLs and actions together for effect. The operations here
include stream mirror, stream condition, QoS Remarking and redirect.

Syntax
access-list policy name name
no access-list policy name name

Parameter
name —— The Policy Name, ranging from 1 to 16 characters.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a Policy named policy1:
T2600G-28TS(config)# access-list policy name policy1

35.14 access-list policy action
Description
The access-list policy action command is used to add ACLs and create

actions for the policy. To set the detailed configuration of actions for a policy,

use access-list policy action command to access Action Configuration
Mode. To delete the corresponding actions, use no access-list policy action

command.

347

Syntax
access-list policy action policy-name acl-id
no access-list policy action policy-name acl-id

Parameter
policy-name —— The Policy Name, ranging from 1 to 16 characters.
acl-id —— The ID of the ACL to which the above policy is applied.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add ACL whose ID is 120 to policy1 and create an action for them:
T2600G-28TS(config)# access-list policy action policy1 120

35.15 redirect interface
Description
The redirect interface command is used to configure Direction function of
policy action for specified ports.

Syntax
redirect interface { gigabitEthernet port }

Parameter
port —— The Destination Port of Redirect. The data packets matching the

corresponding ACL will be forwarded to the specific port. By default, it is All
Ports.

Command Mode
Action Configuration Mode
348

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Edit the actions for policy1. Forward the data packets matching ACL 120 in
the policy to Gigabit Ethernet port 2:

T2600G-28TS(config)#access-list policy action policy1 120
T2600G-28TS(config-action)#redirect interface gigabitEthernet 1/0/2

35.16 s-condition
Description
The s-condition command is used to configure Stream Condition function of
policy action.

Syntax
s-condition rate rate osd { none | discard }

Parameter
rate —— The rate of Stream Condition, ranging from 0 to 1000000kbps.
osd —— Out of Band disposal of Stream Condition. It is the disposal way of

the data packets those are transmitted beyond the rate. There are two
options, “none” and “discard”. By default, the option is “none”.

Command Mode
Action Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Edit the actions for policy1. For the data packets matching ACL 120 in the
policy, if the rate beyond 1000kbps, they will be discarded by the switch:
349

T2600G-28TS(config)#access-list policy action policy1 120
T2600G-28TS(config-action)#s-condition rate 1000 osd discard

35.17 s-mirror
Description
The s-mirror command is used to configure Stream Mirror function of policy
action to the specified port.

Syntax
s-mirror interface { gigabitEthernet port }

Parameter
port —— The Mirror Port number of Stream Mirror.

Command Mode
Action Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Edit the actions for policy1. Specify the mirror port as Gigabit Ethernet port
1/0/2 for the data packets matching ACL 120:

T2600G-28TS(config)#access-list policy action policy1 120
T2600G-28TS(config-action)#s-mirror interface gigabitEthernet 1/0/2

35.18 qos-remark
Description
The qos-remark command is used to configure QoS Remark function of
policy action.

350

Syntax
qos-remark [ dscp dscp ] [ priority pri ] [dot1p dot1p-pri]
no qos-remark

Parameter
dscp —— DSCP of QoS Remark. Specify the DSCP region for the data

packets matching the corresponding ACL. DSCP ranges from 0 to 63. By
default, it is not limited.

pri —— Local Priority of QoS Remark. Specify the local priority for the data
packets matching the corresponding ACL. Local Priority ranges from 0 to 7.

dot1p-pri —— 802.1P priority of QoS Remark. This remark configuration will

change the data packet's 802.1P priority field to the dot1p-pri you set. 802.1P

priority ranges from 0 to 7.

Command Mode
Action Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Edit the actions for policy1. For the data packets matching ACL 120, specify
the DSCP region as 30 and local priority 2:

T2600G-28TS(config)#access-list policy action policy1 120
T2600G-28TS(config-action)# qos-remark dscp 30 priority 2

35.19 access-list bind acl (interface)
Description
The access-list bind acl command is used to bind an ACL to the specified

port. To cancel the bind relation, use no access-list bind acl command.

351

Syntax
access-list bind acl acl-id
no access-list bind acl acl-id

Parameter
acl-id —— The ID of the ACL desired to bind.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind ACL 100 to port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# access-list bind acl 100

35.20 access-list bind acl (vlan)
Note: Packet content ACL doesn’t support VLAN bind.

Description
The access-list bind acl command is used to bind an ACL to the specified
VLAN. To cancel the bind relation, use no access-list bind acl command.

Syntax
access-list bind acl acl-id
no access-list bind acl acl-id

Parameter
acl-id —— The ID of the ACL desired to bind.
352

Command Mode
Interface VLAN Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind ACL 100 to VLAN 2:
T2600G-28TS(config)# interface vlan 2
T2600G-28TS(config-if)# access-list bind acl 100

35.21 access-list bind (interface)
Description
The access-list bind command is used to bind a policy to a specified port. To
cancel the bind relation, use no access-list bind command.

Syntax
access-list bind policy-name
no access-list bind policy-name

Parameter
policy-name —— The name of the policy desired to bind.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

353

Example
Bind policy1 to port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# access-list bind policy1

35.22 access-list packet-content profile
Note: T2600G-18TS doesn’t support this command.

Description
The access-list packet-content profile command is used to configure

packet-content ACL chunk offset profile. There are four chunks to be

configured. They must be configured before you configure the chunk

value&mask. The offset value ranges from 0 to 31. Offset 31 matches the
1,2,127,128 bytes of the packet, offset 0 matches the 3,4,5,6 bytes of the

packet, offset 1 matches the 7,8,9,10 bytes of the packet, and so on, for the
rest of the offset value.

Syntax
access-list packet-content profile chunk-offset0 offset0 chunk-offset1

offset1 chunk-offset2 offset2 chunk-offset3 offset3

Parameter
offset —— The offset value, ranging from 0 to 31.

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure a packet content profile with offset 0,1,2,3:
354

T2600-28TS(config)# access-list packet-content profile chunk-offset0 0
chunk-offset1 1 chunk-offset2 2 chunk-offset3 3

35.23 access-list packet-content config
Note: T2600G-18TS doesn’t support this command.

Description
The access-list packet-content config command is used to add Packet

Content ACL rule. To delete the corresponding rule, use no access-list
packet-content config command. Packet content ACLs analyze and process

data packets based on 4 chunk match conditions, each chunk can specify a
user-defined 4-byte segment carried in the packet's first 128 bytes.

Syntax
access-list packet-content config acl-id rule rule-id {deny | permit} [chunk0

value mask0 mask] [chunk1 value mask1 mask] [chunk2 value mask2 mask]

[chunk3 value mask3 mask] [tseg time-segment]

Parameter
acl-id —— The desired Standard-IP ACL for configuration.
rule-id —— The rule ID.
deny —— The operation to discard packets.
permit ——The operation to forward packets. It is the default value.

value—— Specify the chunk value, ranging from 0-ffffffff.
Mask ——Specify the chunk mask, ranging from 0-ffffffff. Chunk mask here

must be written completely in 4-byte hex mode, like '0000ffff'.

time-segment —— The time-range for the rule to take effect. By default, it is

not limited.

Command mode
Global Configuration Mode
355

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a packet-content acl rule with all 4 chunks configured, the rule id is 1
and the default action is permit:

T2600-28TS(config)# access-list packet-content config rule 1 permit
chunk0 45ea mask0 0000ffff chunk1 1111ffff mask1 ffffffff chunk2 ee34
mask2 ffff0000 chunk3 7878 mask3 000ffae3
T2600-28TS(config)# access-list packet-content profile chunk-offset0 0
chunk-offset1 1 chunk-offset2 2 chunk-offset3 3

35.24 access-list bind (vlan)
Note: Packet content ACL doesn’t support VLAN bind.

Description
The access-list bind command is used to bind a policy to a VLAN. To cancel
the bind relation, use no access-list bind command.

Syntax
access-list bind policy-name
no access-list bind policy-name

Parameter
policy-name —— The name of the policy desired to bind.

Command Mode
Interface VLAN Mode

356

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind policy1 to VLAN 2:
T2600G-28TS(config)# interface vlan 2
T2600G-28TS(config-if)# access-list bind policy1

35.25 show access-list
Description
The show access-list command is used to display configuration of ACL.

Syntax
show access-list acl-id

Parameter
acl-id —— The ID of the ACL selected to display the configuration.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of the MAC ACL whose ID is 20:
T2600G-28TS(config)# show access-list 20

357

35.26 show access-list status
Description
The show access-list status command is used to display the status of ACL

hardware entry table. Here you can view the total number and available

number of the ACL entries.

Syntax
show access-list status

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the status of ACL hardware entry table:
T2600G-28TS(config)# show access-list status

35.27 show access-list policy
Description
The show access-list policy command is used to display the information of a
specified policy.

Syntax
show access-list policy name

Parameter
name —— The Policy Name desired to show.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

358

Privilege Requirement
None.

Example
Display the information of a policy named policy1:
T2600G-28TS(config)# show access-list policy policy1

35.28 show access-list bind
Description
The show access-list bind command is used to display the configuration of

Policy bind.

Syntax
show access-list bind

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of Policy bind:
T2600G-28TS(config)# show access-list bind

359

Chapter 36 MSTP Commands
MSTP (Multiple Spanning Tree Protocol), compatible with both STP and RSTP and subject to

IEEE 802.1s, can disbranch a ring network. STP is to block redundant links and backup links as
well as optimize paths.

36.1

debug spanning-tree
Description
The debug spanning-tree command is used to enable debuggning of

spanning-tree activities. To disable the debugging function, use no debug

spanning-tree command.

Syntax
debug spanning-tree { all | bpdu receive | bpdu transmit | cmpmsg | errors |
flush | init | migration | proposals | roles | state | tc }

no debug spanning-tree { all | bpdu receive | bpdu transmit | cmpmsg | errors
| flush | init | migration | proposals | roles | state | tc }

Parameters
all —— Display all the spanning-tree debug messages.
bpdu receive —— Display the debug messages of the received
spanning-tree bridge protocol data unit (BPDU).

bpdu transmit —— Display the debug messages of the sent spanning-tree
BPDU.

cmpmsg —— Display the message priority debug messages.
errors —— Display the MSTP error debug messages.
flush —— Display the address table flushing debug messages.
init —— Display the data structure initialization debug messages.
migration —— Display the version migration debug messages.
360

proposals —— Display the MSTP handshake debug messages.
roles —— Display the MSTP interface role switchling debug messages.
state —— Display the MSTP interface state change debug messages.
tc —— Display the MSTP topology event debug messages.

Command Mode
Privileged EXEC Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display all the spanning-tree debug messages:
T2600G-28TS# debug spanning-tree all

36.2

spanning-tree (global)
Description
The spanning-tree command is used to enable STP function globally. To

disable the STP function, use no spanning-tree command.

Syntax
spanning-tree
no spanning-tree

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the STP function:
361

T2600G-28TS(config)# spanning-tree

36.3

spanning-tree (interface)
Description
The spanning-tree command is used to enable STP function for a port. To

disable the STP function, use no spanning-tree command.

Syntax
spanning-tree
no spanning-tree

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the STP function for port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree

36.4

spanning-tree common-config
Description
The spanning-tree common-config command is used to configure the

parameters of the ports for comparison in the CIST and the common

parameters of all instances. To return to the default configuration, use no

spanning-tree common-config command. CIST (Common and Internal

Spanning Tree) is the spanning tree in a switched network, connecting all
devices in the network.

362

Syntax
spanning-tree common-config [ port-priority pri ] [ ext-cost ext-cost ]

[ int-cost int-cost ] [ portfast { enable | disable }] [ point-to-point { auto | open
| close }]

no spanning-tree common-config

Parameter
pri —— Port Priority, which must be multiple of 16 ranging from 0 to 240. By

default, the port priority is 128. Port Priority is an important criterion on
determining if the port connected to this port will be chosen as the root port.

In the same condition, the port with the highest priority will be chosen as the
root port. The lower value has the higher priority.

ext-cost —— External Path Cost, which is used to choose the path and

calculate the path costs of ports in different MST regions. It is an important

criterion on determining the root port. The lower value has the higher priority.

It ranges from o to 2000000. By default, it is 0 which is mean auto.

int-cost —— Internal Path Cost, which is used to choose the path and

calculate the path costs of ports in an MST region. It is an important criterion

on determining the root port. The lower value has the higher priority. By
default, it is automatic. It ranges from o to 2000000. By default, it is 0 which is
mean auto.

portfast —— Enable/ Disable Edge Port. By default, it is disabled. The edge

port can transit its state from blocking to forwarding rapidly without waiting
for forward delay.

point-to-point —— The P2P link status, with auto, open and close options. By
default, the option is auto. If the two ports in the P2P link are root port or
designated port, they can transit their states to forwarding rapidly to reduce
the unnecessary forward delay.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

363

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the STP function of port 1, and configure the Port Priority as 64,
ExtPath Cost as 100, IntPath Cost as 100, and then enable Edge Port:
T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# spanning-tree common-config port-priority 64
ext-cost 100 int-cost 100 portfast enable point-to-point open

36.5

spanning-tree mode
Description
The spanning-tree mode command is used to configure the STP mode of the

switch. To return to the default configurations, use no spanning-tree mode

command.

Syntax
spanning-tree mode { stp | rstp | mstp }
no spanning-tree mode

Parameter
stp ——Spanning Tree Protocol, the default value.
rstp ——Rapid Spanning Tree Protocol
mstp ——Multiple Spanning Tree Protocol

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
364

Example
Configure the spanning-tree mode as mstp:
T2600G-28TS(config)# spanning-tree mode mstp

36.6

spanning-tree mst configuration
Description
The spanning-tree mst configuration command is used to access MST

Configuration Mode from Global Configuration Mode, as to configure the
VLAN-Instance mapping, region name and revision level. To return to the

default configuration of the corresponding Instance, use no spanning-tree
mst configuration command.

Syntax
spanning-tree mst configuration
no spanning-tree mst configuration

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enter into the MST configuration mode:
T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(Config-mst)#

365

36.7

instance
Description
The instance command is used to configure the VLAN-Instance mapping. To

remove the VLAN-instance mapping or disable the corresponding instance,

use no instance command. When an instance is disabled, the related
mapping VLANs will be removed.

Syntax
instance instance-id vlan vlan-id
no instance instance-id [ vlan vlan-id ]

Parameters
instance-id —— Instance ID, ranging from 1 to 8.
vlan-id —— The VLAN ID selected to mapping with the corresponding

instance.

Command Mode
MST Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Map the VLANs 1-100 to Instance 1:
T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(config-mst)# instance 1 vlan 1-100
Disable Instance 1, namely remove all the mapping VLANs 1-100:
T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(config-mst)# no instance 1
Remove VLANs 1-50 in mapping VLANs 1-100 for Instance 1:
366

T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(config-mst)# no instance 1 vlan 1-50

36.8

name
Description
The name command is used to configure the region name of MST instance.

Syntax
name name

Parameters
name —— The region name, used to identify MST region. It ranges from 1 to
32 characters.

Command Mode
MST Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the region name of MST as “region1”:
T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(config-mst)# name region1

36.9

revision
Description
The revision command is used to configure the revision level of MST
instance.

367

Syntax
revision revision

Parameters
revision —— The revision level for MST region identification, ranging from 0

to 65535.

Command Mode
MST Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the revision level of MST as 100:
T2600G-28TS(config)# spanning-tree mst configuration
T2600G-28TS(config-mst)# revision 100

36.10 spanning-tree mst instance
Description
The spanning-tree mst instance command is used to configure the priority

of MST instance. To return to the default value of MST instance priority, use
no spanning-tree mst instance command.

Syntax
spanning-tree mst instance instance-id priority pri
no spanning-tree mst instance instance-id priority

Parameter
instance-id —— Instance ID, ranging from 1 to 8.
pri —— MSTI Priority, which must be multiple of 4096 ranging from 0 to

61440. By default, it is 32768. MSTI priority is an important criterion on
368

determining if the switch will be chosen as the root bridge in the specific
instance.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the MST Instance 1 and configure its priority as 4096:
T2600G-28TS(config)# spanning-tree mst instance 1 priority 4096

36.11 spanning-tree mst
Description
The spanning-tree mst command is used to configure MST Instance Port. To

return to the default configuration of the corresponding Instance Port, use no

spanning-tree mst command. A port can play different roles in different

spanning tree instance. You can use this command to configure the
parameters of the ports in different instance IDs as well as view status of the
ports in the specified instance.

Syntax
spanning-tree mst instance instance-id {[ port-priority pri ] | [ cost cost ]}
no spanning-tree mst instance instance-id

Parameter
instance-id —— Instance ID, ranging from 1 to 8.
pri —— Port Priority, which must be multiple of 16 ranging from 0 to 240. By
default, it is 128. Port Priority is an important criterion on determining if the
port will be chosen as the root port by the device connected to this port.

369

cost —— Path Cost, ranging from 0 to 200000. The lower value has the
higher priority. Its default value is 0 meaning “auto”.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the priority of port 1 in MST Instance 1 as 64, and path cost as
2000:

T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# spanning-tree mst instance 1 port-priority 64
cost 2000

36.12 spanning-tree priority
Description
The spanning-tree priority command is used to configure the bridge priority.

To return to the default value of bridge priority, use no spanning-tree
priority command.

Syntax
spanning-tree priority pri
no spanning-tree priority

Parameter
pri —— Bridge priority, ranging from 0 to 61440. It is 32768 by default.

Command Mode
Global Configuration Mode
370

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the bridge priority as 4096:
T2600G-28TS(config)# spanning-tree priority 4096

36.13 spanning-tree timer
Description
The spanning-tree timer command is used to configure forward-time,

hello-time and max-age of Spanning Tree. To return to the default
configurations, use no spanning-tree timer command.

Syntax
spanning-tree timer {[ forward-time forward-time ] [ hello-time hello-time ]
[ max-age max-age ]}

no spanning-tree timer

Parameter
forward-time —— Forward Delay, which is the time for the port to transit its

state after the network topology is changed. Forward Delay ranges from 4 to
30 in seconds and it is 15 by default. Otherwise, 2 * (Forward Delay - 1) >=

Max Age.

hello-time ——Hello Time, which is the interval to send BPDU packets, and

used to test the links. Hello Time ranges from 1 to 10 in seconds and it is 2 by
default. Otherwise, 2 * (Hello Time + 1) <= Max Age.

max-age —— The maximum time the switch can wait without receiving a
BPDU before attempting to reconfigure, ranging from 6 to 40 in seconds. By
default, it is 20.

Command Mode
Global Configuration Mode
371

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure forward-time, hello-time and max-age for Spanning Tree as 16

seconds, 3 seconds and 22 seconds respectively:

T2600G-28TS(config)# spanning-tree timer forward-time 16 hello-time 3
max-age 22

36.14 spanning-tree hold-count
Description
The spanning-tree hold-count command is used to configure the maximum
number of BPDU packets transmitted per Hello Time interval. To return to the
default configurations, use no spanning-tree hold-count command.

Syntax
spanning-tree hold-count value
no spanning-tree hold-count

Parameter
value —— The maximum number of BPDU packets transmitted per Hello Time
interval, ranging from 1 to 20 in pps. By default, it is 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the hold-count of STP as 8pps:

372

T2600G-28TS(config)# spanning-tree hold-count 8

36.15 spanning-tree max-hops
Description
The spanning-tree max-hops command is used to configure the maximum

number of hops that occur in a specific region before the BPDU is discarded.

To return to the default configurations, use no spanning-tree max-hops

command.

Syntax
spanning-tree max-hops value
no spanning-tree max-hops

Parameter
value —— The maximum number of hops that occur in a specific region
before the BPDU is discarded, ranging from 1 to 40 in hop. By default, it is 20.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the max-hops of STP as 30:
T2600G-28TS(config)# spanning-tree max-hops 30

36.16 spanning-tree bpdufilter
Description
The spanning-tree bpdufilter command is used to enable the BPDU filter

function for a port. With the function enabled, the port can be prevented from
373

receiving and sending any BPDU packets. To disable the BPDU filter function,
use no spanning-tree bpdufilter command.

Syntax
spanning-tree bpdufilter
no spanning-tree bpdufilter

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the BPDU filter function for port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree bpdufilter

36.17 spanning-tree bpduguard
Description
The spanning-tree bpduguard command is used to enable the BPDU protect

function for a port. With the BPDU protect function enabled, the port will set
itself automatically as ERROR-PORT when it receives BPDU packets, and the

port will disable the forwarding function for a while. To disable the BPDU
protect function, use no spanning-tree bpduguard command.

Syntax
spanning-tree bpduguard
no spanning-tree bpduguard

374

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the BPDU protect function for port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree bpduguard

36.18 spanning-tree guard loop
Description
The spanning-tree guard loop command is used to enable the Loop Protect

function for a port. Loop Protect is to prevent the loops in the network

brought by recalculating STP because of link failures and network
congestions. To disable the Loop Protect function, use no spanning-tree
guard loop command.

Syntax
spanning-tree guard loop
no spanning-tree guard loop

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

375

Example
Enable the Loop Protect function for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree guard loop

36.19 spanning-tree guard root
Description
The spanning-tree guard root command is used to enable the Root Protect
function for a port. With the Root Protect function enabled, the root bridge

will set itself automatically as ERROR-PORT when receiving BPDU packets

with higher priority, in order to maintain the role of root ridge. To disable the
Root Protect function, use no spanning-tree guard root command.

Syntax
spanning-tree guard root
no spanning-tree guard root

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Root Protect function for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree guard root

376

36.20 spanning-tree guard tc
Description
The spanning-tree guard tc command is used to enable the TC Protect of

Spanning Tree function for a port. To disable the TC Protect of Spanning Tree

function, use no spanning-tree guard tc command. A switch removes MAC
address entries upon receiving TC-BPDUs. If a malicious user continuously

sends TC-BPDUs to a switch, the switch will be busy with removing MAC

address entries, which may decrease the performance and stability of the

network. With the Protect of Spanning Tree function enabled, you can

configure the number of TC-BPDUs in a required time, so as to avoid the
process of removing MAC addresses frequently.

Syntax
spanning-tree guard tc
no spanning-tree guard tc

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the TC Protect of Spanning Tree for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree guard tc

36.21 spanning-tree mcheck
Description
The spanning-tree mcheck command is used to enable mcheck.
377

Syntax
spanning-tree mcheck

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable mcheck for port 2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# spanning-tree mcheck

36.22 show spanning-tree active
Description
The show spanning-tree active command is used to display the active

information of spanning-tree.

Syntax
show spanning-tree active

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the active information of spanning-tree:
T2600G-28TS(config)# show spanning-tree active
378

36.23 show spanning-tree bridge
Description
The show spanning-tree bridge command is used to display the bridge

parameters.

Syntax
show spanning-tree bridge [ forward-time | hello-time | hold-count | max-age

| max-hops | mode | priority | state ]

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the bridge parameters:
T2600G-28TS(config)# show spanning-tree bridge

36.24 show spanning-tree interface
Description
The show spanning-tree interface command is used to display the

spanning-tree information of all ports or a specified port.

Syntax
show spanning-tree interface [ gigabitEthernet port | port-channel

port-channel-id ] [ edge | ext-cost | int-cost | mode | p2p | priority | role | state |
status ]

Parameter
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.
379

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the spanning-tree information of all ports:
T2600G-28TS(config)# show spanning-tree interface
Display the spanning-tree information of port 1/0/2:
T2600G-28TS(config)# show spanning-tree interface gigabitEthernet
1/0/2
Display the spanning-tree mode information of port 1/0/2:
T2600G-28TS(config)# show spanning-tree interface gigabitEthernet
1/0/2 mode

36.25 show spanning-tree interface-security
Description
The show spanning-tree interface-security command is used to display the

protect information of all ports or a specified port.

Syntax
show

spanning-tree

interface-security

[

gigabitEthernet

port

|

port-channel port-channel-id ] [ bpdufilter | bpduguard | loop | root | tc |
tc-defend ]

Parameter
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

380

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the protect information of all ports:
T2600G-28TS(config)# show spanning-tree interface-security
Display the protect information of port 1:
T2600G-28TS(config)# show spanning-tree interface-security
gigabitEthernet 1/0/1
Display the interface security bpdufilter information:
T2600G-28TS(config)# show spanning-tree interface-security bpdufilter

36.26 show spanning-tree mst
Description
The show spanning-tree mst command is used to display the related
information of MST Instance.

Syntax
show spanning-tree mst { configuration [ digest ] | instance instance-id
[ interface [ gigabitEthernet port | port-channel port-channel-id ] ] }

Parameter
instance-id —— Instance ID desired to show, ranging from 1 to 8.
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

381

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the region information and mapping information of VLAN and MST
Instance:

T2600G-28TS(config)#show spanning-tree mst configuration
Display the related information of MST Instance 1:
T2600G-28TS(config)#show spanning-tree mst instance 1
Display all the ports information of MST Instance 1:
T2600G-28TS(config)#show spanning-tree mst instance 1 interface

382

Chapter 37 Ethernet OAM Commands
Ethernet OAM (standing for Operation, Administration, and Maintenance) is Layer 2 protocol
that is used for monitoring and troubleshooting Ethernet networks. It can report the network

status to network administrators through the OAMPDUs exchanged between two OAM entities.

The operation of OAM on an Ethernet interface does not adversely affect data traffic as OAM is
a slow protocol with very limited bandwidth potential.

37.1

ethernet-oam
Description
The ethernet-oam command is used to enable the Ethernet OAM function for

the desired port. To disable the Ethernet OAM function, use no ethernet-oam
command.

Syntax
ethernet-oam
no ethernet-oam

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the Ethernet OAM function for Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ethernet-oam

383

37.2

ethernet-oam mode
Description
The ethernet-oam mode command is used to configure the OAM mode for
the desired port. To return to the default configurations, use no

ethernet-oam mode command. The default mode is active.

Syntax
ethernet-oam mode { passive | active }
no ethernet-oam mode

Parameter
passive —— Specify the OAM mode as passive.
active ——Specify the OAM mode as active.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure Ethernet OAM client to operate in passive mode for Gigabit
Ethernet port 2:

T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ethernet-oam mode passive

37.3

ethernet-oam link-monitor symbol-period
Description
The ethernet-oam link-monitor symbol-period command is used to

configure the parameters about one of the link events, error symbol period
384

event. To return to the default configurations, use no ethernet-oam
link-monitor symbol-period command.

Syntax
ethernet-oam link-monitor symbol-period { threshold threshold | window

window | notify { disable | enable }}

no ethernet-oam link-monitor symbol-period { threshold | window | notify }

Parameter
threshold —— Configure the error threshold for generating error

symbol-period event. The range is from 1 to 4294967295 and the default

value is 1.

window —— Configure the error symbol-period event detection interval. The

range is from 10 to 600, in terms of 100 ms intervals. The default value is 10.
notify —— Enable/Disable the event notification. By default, it is enabled.

threshold | window | notify —— The parameter that you want to return to the
default configuration.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
For error symbol-period event, configure the error threshold as 5 and the
event detection interval as 3 seconds on Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#

ethernet-oam

threshold 5 window 30

385

link-monitor

symbol-period

37.4

ethernet-oam link-monitor frame
Description
The ethernet-oam link-monitor frame command is used to configure the

parameters about one of the link events, error frame event. To return to the
default configurations, use no ethernet-oam link-monitor frame command.

Syntax
ethernet-oam link-monitor frame { [threshold threshold ] [ window window ]
[notify { disable | enable } ] }

no ethernet-oam link-monitor frame { threshold | window | notify }

Parameter
threshold —— Configure the error threshold for generating error frame event.

The range is from 1 to 4294967295 and the default value is 1.

window —— Configure the error symbol-period event detection interval. The

range is from 10 to 600, in terms of 100 ms intervals. The default value is 10.
notify —— Enable/Disable the event notification. By default, it is enabled.

threshold | window | notify —— The parameter that you want to return to the
default configuration.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
For error frame event, configure the error threshold as 6 and the event
detection interval as 9 seconds on Gigabit Ethernet port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
386

T2600G-28TS(config-if)# ethernet-oam link-monitor frame threshold 6
window 90

37.5

ethernet-oam link-monitor frame-period
Description
The ethernet-oam link-monitor frame-period command is used to

configure the parameters about one of the link events, error frame period

event. To return to the default configurations, use no ethernet-oam
link-monitor frame-period command.

Syntax
ethernet-oam link-monitor frame-period { [threshold threshold ] [ window

window ] [notify { disable | enable } ] }

no ethernet-oam link-monitor frame-period { threshold | window | notify }

Parameter
threshold —— Configure the error threshold for generating error frame
period event. The range is from 1 to 4294967295 and the default value is 1.

window —— Configure the error frame period event detection interval. The

range is from 148810 to 89286000. The default value is 148810 for Fast
Ethernet port and 1488100 for Gigabit Ethernet port.

notify —— Enable/Disable the event notification. By default, it is enabled.
threshold | window | notify —— The parameter that you want to return to the
default configuration.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.
387

Example
For error frame period event, configure the error threshold as 6 and the event
detection interval as 150000 frames on Gigabit Ethernet port 1/0/4:
T2600G-28TS(config)# interface gigabitEthernet 1/0/4
T2600G-28TS(config-if)#

ethernet-oam

link-monitor

frame-period

threshold 6 window 150000

37.6

ethernet-oam link-monitor frame-seconds
Description
The ethernet-oam link-monitor frame-seconds command is used to
configure the parameters about one of the link events, error frame seconds

event. To return to the default configurations, use no ethernet-oam
link-monitor frame-seconds command.

Syntax
ethernet-oam link-monitor frame-seconds { [threshold threshold ]
[ window window ] [notify { disable | enable } ] }

no ethernet-oam link-monitor frame-seconds { threshold | window | notify }

Parameter
threshold —— Configure the error threshold for generating error frame
seconds event. The range is from 1 to 900 and the default value is 1.

window —— Configure the error frame seconds event detection interval. The

range is from 100 to 9000, in terms of 100 ms intervals. The default value is
600.

notify —— Enable/Disable the event notification. By default, it is enabled.
threshold | window | notify —— The parameter that you want to return to the
default configuration.

388

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
For error frame seconds event, configure the error threshold as 8 and the
event detection interval as 30 seconds on Gigabit Ethernet port 5:
T2600G-28TS(config)# interface gigabitEthernet 1/0/5
T2600G-28TS(config-if)#

ethernet-oam

link-monitor

frame-seconds

threshold 8 window 300

37.7

ethernet-oam remote-failure
Description
The ethernet-oam remote-failure command is used to configure whether to

notify the link faults or not. The link faults include dying gasp and critical event.
To return to the default configurations, use no ethernet-oam remote-failure

command.

Syntax
ethernet-oam remote-failure { dying-gasp | critical-event } notify { disable |

enable }

no ethernet-oam remote-failure { dying-gasp | critical-event } notify

Parameter
dying-gasp —— Dying Gasp link event. Dying gasp means an unrecoverable

fault, such as power failure, occurs.

critical-event —— Critical Event. Critical-event means unspecified critical

event occurs.

389

notify ——Enable/Disable the event notification. By default, it is enabled.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Disable the Dying Gasp link event notification on Gigabit Ethernet port 1/0/7:
T2600G-28TS(config)# interface gigabitEthernet 1/0/7
T2600G-28TS(config-if)# ethernet-oam remote-failure dying-gasp notify
disable

37.8

ethernet-oam remote-loopback
received-remote- loopback

Description
The ethernet-oam remote-loopback received-remote-loopback command

is used to configure the client to process or to ignore the received remote

loopback request. To return to the default configurations, use no
ethernet-oam remote-loopback received-remote-loopback command.

Syntax
ethernet-oam remote-loopback received-remote-loopback { process |

ignore }

no ethernet-oam remote-loopback received-remote-loopback

Parameter
process —— Process the received remote loopback request.
ignore —— Ignore the received remote loopback request.
390

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the client to process the received remote loopback request on
Gigabit Ethernet port 1:

T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#

ethernet-oam

remote-loopback

received

-remote-loopback process

37.9

ethernet-oam remote-loopback

Note: T2600G-18TS doesn’t support this command.

Description
The ethernet-oam remote-loopback command is used to request the

remote peer to start or stop the Ethernet OAM remote loopback mode.

Syntax
ethernet-oam remote-loopback { start | stop }

Parameter
start —— Request the remote peer to start the Ethernet OAM remote

loopback mode.

stop —— Request the remote peer to stop the Ethernet OAM remote

loopback mode.

391

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Request the remote peer to start the Ethernet OAM remote loopback mode
on Gigabit Ethernet port 1/0/3:

T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# ethernet-oam remote-loopback start

37.10 clear ethernet-oam statistics
Description
The clear ethernet-oam statistics command is used to clear Ethernet OAM

statistics.

Syntax
clear ethernet-oam statistics [ interface gigabitEthernet port ]

Parameter
port —— The Gigabit Ethernet port number. By default, the Ethernet OAM
statistics of all ports are cleared.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Clear Ethernet OAM statistics of Gigabit Ethernet port 1/0/3:
392

T2600G-28TS(config)# clear ethernet-oam statistics interface gigabit
Ethernet 1/0/3

37.11 clear ethernet-oam event-log
Description
The clear ethernet-oam event-log command is used to clear the Ethernet

OAM event log.

Syntax
clear ethernet-oam event-log [ interface gigabitEthernet port ]

Parameter
port ——The Gigabit Ethernet port number. By default, the Ethernet OAM
event logs of all ports are cleared.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Clear Ethernet OAM event log of Gigabit Ethernet port 1/0/3:
T2600G-28TS(config)#

clear

ethernet-oam

event-log

interface

gigabitEthernet 1/0/3

37.12 show ethernet-oam configuration
Description
The show ethernet-oam configuration command is used to display Ethernet
OAM configuration information.

393

Syntax
show ethernet-oam configuration [ interface gigabitEthernet port ]

Parameter
port —— The Gigabit Ethernet port number. By default, the Ethernet OAM

configuration information of all ports is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display Ethernet OAM configuration information of Gigabit Ethernet port

1/0/2:

T2600G-28TS(config)#

show

ethernet-oam

configuration

interface

gigabitEthernet 1/0/2

37.13 show ethernet-oam event-log
Description
The show ethernet-oam event-log command is used to display the Ethernet
OAM event log.

Syntax
show ethernet-oam event-log

[ interface gigabitEthernet port ]

Parameter
port —— The Gigabit Ethernet port number. By default, the Ethernet OAM

event logs of all ports are displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode
394

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display Ethernet OAM event log of Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)#

show

ethernet-oam

event-log

interface

gigabitEthernet 1/0/2

37.14 show ethernet-oam statistics
Description
The show ethernet-oam statistics command is used to display the Ethernet
OAM statistics.

Syntax
show ethernet-oam statistics [ interface gigabitEthernet port ]

Parameter
port —— The Gigabit Ethernet port number. By default, the Ethernet OAM

statistics of all ports are displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display Ethernet OAM statistics of Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)#

show

gigabitEthernet 1/0/2

395

ethernet-oam

statistics

interface

37.15 show ethernet-oam status
Description
The show ethernet-oam status command is used to display the Ethernet
OAM status of both the local and the remote client.

Syntax
show ethernet-oam status [ interface gigabitEthernet port ]

Parameter
port —— The Gigabit Ethernet port number. By default, the Ethernet OAM

status of all ports is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Display Ethernet OAM status of Gigabit Ethernet port 1/0/2:
T2600G-28TS(config)#

show

gigabitEthernet 1/0/2

396

ethernet-oam

status

interface

Chapter 38 DLDP Commands
DLDP (Device Link Detection Protocol) is used to monitor the link state of fiber-optic or
twisted-pair Ethernet cables. When a unidirectional link is detected, the corresponding port will
be shut down automatically or manually (depending on the shut mode configured).

38.1

dldp (global)
Description
The dldp command is used to enable the DLDP function globally. To disable it,
use no dldp command.

Syntax
dldp
no dldp

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the DLDP function globally:
T2600G-28TS(config)# dldp

38.2

dldp interval
Description
The dldp interval command is used to define the interval of sending
advertisement packets on ports that are in the advertisement state.

397

Syntax
dldp interval interval-time

Parameter
interval-time —— The interval of sending advertisement packets. It ranges
from 1 to 30 seconds. By default, it is 5 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the interval of sending advertisement packets as 10 seconds:
T2600G-28TS(config)# dldp interval 10

38.3

dldp shut-mode
Description
The dldp shut-mode command is used to configure the shutdown mode

when a unidirectional link is detected.

Syntax
dldp shut-mode { auto | manual }

Parameter
auto —— The switch automatically shuts down ports when a unidirectional
link is detected. By default, the shut-mode is auto.

manual ——The switch displays an alert when a unidirectional link is detected.

The operation to shut down the unidirectional link ports is accomplished by
the users.

398

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the shut-mode as manual:
T2600G-28TS(config)# dldp shut-mode manual

38.4

dldp reset (global)
Description
The dldp reset command is used to reset all the unidirectional links and
restart the link detect process.

Syntax
dldp reset

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Reset the DLDP function globally:
T2600G-28TS(config)# dldp reset

38.5

dldp (interface)
Description
The dldp command is used to enable the DLDP function of the specified port.
To disable it, use no dldp command.
399

Syntax
dldp
no dldp

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the DLDP function of ports 1/0/2-4:
T2600G-28TS (config)# interface range gigabitEthernet 1/0/2-4
T2600G-28TS (config-if-range)# dldp

38.6

dldp reset (interface)
Description
The dldp reset command is used to reset the specified port and restart the
link detect process.

Syntax
dldp reset

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

400

Example
Reset the DLDP function of ports 2-4:
T2600G-28TS (config)# interface range gigabitEthernet 1/0/2-4
T2600G-28TS (config-if-range)# dldp reset

38.7

show dldp
Description
The show dldp command is used to display the global configuration of DLDP

function such as DLDP global state, DLDP interval and shut mode.

Syntax
show dldp

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of DLDP function:
T2600G-28TS# show dldp

38.8

show dldp interface
Description
The show dldp interface command is used to display the configuration and
state of the specified Ethernet port. By default, the configuration and state of
all the ports will be displayed.

Syntax
show dldp interface [gigabitEthernet port ]
401

Parameter
port —— The Gigabit Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration and state of all ports:
T2600G-28TS# show dldp interface
Display the configuration and state of port 1/0/5:
T2600G-28TS# show dldp interface gigabitEthernet 1/0/5

402

Chapter 39 IGMP Snooping Commands
IGMP Snooping (Internet Group Management Protocol Snooping) is a multicast control

mechanism running on Layer 2 switch. It can effectively prevent multicast groups being
broadcasted in the network.

39.1

ip igmp snooping (global)
Description
The ip igmp snooping command is used to configure IGMP Snooping

globally. To disable the IGMP Snooping function, use no ip igmp snooping
command.

Syntax
ip igmp snooping
no ip igmp snooping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable IGMP Snooping function:
T2600G-28TS(config)# ip igmp snooping

403

39.2

ip igmp snooping (interface)
Description
The ip igmp snooping command is used to enable the IGMP Snooping

function for the desired port. To disable the IGMP Snooping function, use no
ip igmp snooping command.

Syntax
ip igmp snooping
no ip igmp snooping

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable IGMP Snooping function of port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# ip igmp snooping

39.3

ip igmp snooping rtime
Description
The ip igmp snooping rtime command is used to specify router port aging
time globally. To restore the default timer, use no ip igmp snooping rtime
command.

Syntax
ip igmp snooping rtime rtime
no ip igmp snooping rtime
404

Parameter
rtime —— Specify the aging time in seconds, ranging from 60 to 600. The

default aging time is 300 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify IGMP Snooping router port aging time as 100 seconds globally:
T2600G-28TS(config)# ip igmp snooping rtime 100

39.4

ip igmp snooping mtime
Description
The ip igmp snooping mtime command is used to specify member port
aging time globally. The default aging time is 260 seconds. To restore the
default timer, use no ip igmp snooping mtime command.

Syntax
ip igmp snooping mtime mtime
no ip igmp snooping mtime

Parameter
mtime —— Specify the aging time in seconds, ranging from 60 to 600. The
default aging time is 260 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
405

Example
Specify IGMP Snooping member port aging time as 100 seconds globally:
T2600G-28TS(config)# ip igmp snooping mtime 100

39.5

ip igmp snooping report-suppression
Description
The ip igmp snooping report-suppression command is used enable the

IGMP report suppression function. When it is enabled, the switch forwards
only the first IGMP report message per mulicast group to the Layer 3 device,

and the subsequent IGMP reports from the same multicast group are
discarded. To disable the IGMP report suppression function and forward all

the IGMP reports to the Layer 3 device, use no ip igmp snooping

report-suppression command. This function is disabled by default.

Syntax
ip igmp snooping report-suppression
no ip igmp snooping report-suppression

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IGMP report suppression function:
T2600G-28TS(config)# ip igmp snooping report-suppression

406

39.6

ip igmp snooping immediate-leave
Description
The ip igmp snooping immediate-leave command is used to configure the

Fast Leave function for port. To disable the Fast Leave function, use no ip
igmp snooping immediate-leave command.

Syntax
ip igmp snooping immediate-leave
no ip igmp snooping immediate-leave

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the Fast Leave function for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# ip igmp snooping immediate-leave

39.7

ip igmp snooping drop-unknown
Description
The ip igmp snooping drop-unknown command is used to process the
unknown multicast as discard. To disable the operation of processing the

unknown multicast as discard, use no ip igmp snooping drop-unknown
command.

Syntax
ip igmp snooping drop-unknown
407

no ip igmp snooping drop-unknown

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the operation to process unknown multicast as discard:
T2600G-28TS(config)# ip igmp snooping drop-unknown

39.8

ip igmp snooping last-listener query-inteval
Description
The ip igmp snooping last-listener query-inteval command is used to
specify the interval to send Specific Query Message. The default value is 1
second. To restore the default interval, use no ip igmp snooping
last-listener query-inteval command.

Syntax
ip igmp snooping last-listener query-inteval interval
no ip igmp snooping last-listener query-inteval

Parameter
interval —— Specify the interval to send Specific Query Message in seconds,
ranging from 1 to 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

408

Example
Specify the interval of Specific Query Message to 3 seconds:
T2600G-28TS(config)# ip igmp snooping last-listener query-inteval 3

39.9

ip igmp snooping last-listener query-count
Description
The ip igmp snooping last-listener query-count command is used to
specify the numbers of Specific Query Message to be sent. The default value
is 2. To restore the default number, use no ip igmp snooping last-listener
query-count command.

Syntax
ip igmp snooping last-listener query-count num
no ip igmp snooping last-listener query-count

Parameter
num —— Specify the numbers of Specific Query Message to be sent, ranging
from 1 to 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the number of Specific Query Message to 3:
T2600G-28TS(config)# ip igmp snooping last-listener query-count 3

409

39.10 ip igmp snooping vlan-config
Description
The ip igmp snooping vlan-config command is used to enable VLAN IGMP

Snooping function or to modify IGMP Snooping parameters, and to create

static multicast IP entry. To disable the VLAN IGMP Snooping function, use no

ip igmp snooping vlan-config command. To restore the default values, use
no ip igmp snooping vlan-config with specified parameters.

Syntax
ip igmp snooping vlan-config vlan-id-list [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]
ip

igmp

snooping

vlan-config

vlan-id-list

static

{ gigabitEthernet port-list | port-channel port-channel-id }

ip

interface

no ip igmp snooping vlan-config vlan-id-list [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]
no

ip

igmp

snooping

vlan-config

vlan-id-list static ip interface

{ gigabitEthernet port-list | port-channel port-channel-id }

Parameter
vlan-id-list —— The ID list of the VLAN desired to modify configuration,
ranging from 1 to 4094, in the format of 1-3, 5.

router-time —— Router Port Time. Within this time, if the switch does not

receive IGMP query message from the router port, it will consider this port is
not a router port any more. Router Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global router-time will be used.

member-time —— Member Port Time. Within this time, if the switch does not

receive IGMP report message from the member port, it will consider this port
is not a member port any more. Member Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global member-time will be used.

port-list —— The list of Ethernet ports.
410

port-channel-id —— The ID of the port channels.
ip —— The static multicast IP address.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IGMP Snooping function and modify Router Port Time as 300

seconds, Member Port Time as 200 seconds for VLAN 1-3, and set the router

port as 1/0/1 for VLAN 1-2:

T2600G-28TS(config)# ip igmp snooping vlan-config 1-3 rtime 300
T2600G-28TS(config)# ip igmp snooping vlan-config 1-3 mtime 200
T2600G-28TS(config)# ip igmp snooping vlan-config 1-2 rport interface
gigabitEthernet 1/0/1
Add static multicast IP address 225.0.0.1, which corresponds to VLAN 2, and
configure the forward ports as ports 1/0/1-3:

T2600G-28TS(config)# ip igmp snooping vlan-config 2 static 225.0.0.1
interface gigabitEthernet 1/0/1-3

39.11 ip igmp snooping vlan-config
(router-port-forbidden)

Description

This command is used to forbid the specified ports as being router ports in

the specified VLAN(s). To delete the forbidden router ports, use no ip igmp
snooping vlan-config vlan-id-list router-ports-forbidd command.

411

Syntax
ip igmp snooping vlan-config vlan-id-list router-port-forbidd interface

{ gigabitEthernet port-list | port-channel port-channel-id }

no ip igmp snooping vlan-config vlan-id-list router-port-forbidd interface
[ gigabitEthernet port-list | port-channel port-channel-id ]

Parameter
vlan-id-list —— The ID list of the VLAN desired to modify configuration,
ranging from 1 to 4094, in the format of 1-3, 5.

port-list —— Forbid the specified ports as being router ports. Packets sent
from multicast routers to these ports will be discarded.

port-channel-id —— Forbid the specified port-channels as being router ports.

Packets sent from multicast routers to these port-channels will be discarded.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Forbid the Ethernet ports 1/0/1-3 as being router ports in VLAN 1 :
T2600G-28TS(config)# ip igmp snooping vlan-config 1 router-port-forbidd
interface gigabitEthernet 1/0/1-3

39.12 ip igmp snooping multi-vlan-config
Description

The ip igmp snooping multi-vlan-config command is used to create

Multicast VLAN. To delete the corresponding Multicast VLAN, use no ip igmp
snooping multi-vlan-config command. To restore the default values, use no

ip igmp snooping multi-vlan-config with specified parameters.
412

Syntax
ip igmp snooping multi-vlan-config [ vlan-id ] [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]

no ip igmp snooping multi-vlan-config [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]

Parameter
vlan-id —— The ID of the multicast VLAN desired to create or modify, ranging

from 2 to 4094. If not specified, the default multicast VLAN will be selected.

router-time —— Router Port Time. Within this time, if the switch does not

receive IGMP query message from the router port, it will consider this port is
not a router port any more. Router Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global router-time will be used.

member-time —— Member Port Time. Within this time, if the switch does not

receive IGMP report message from the member port, it will consider this port
is not a member port any more. Member Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global member-time will be used.

port-list —— The list of Ethernet ports.
port-channel-id —— The ID of the port channels.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable Multicast VLAN 3, and configure Router Port Time as 100 seconds,
Member Port Time 100 seconds, and Static Router Port port 1/0/3:

T2600G-28TS(config)# ip igmp snooping multi-vlan-config 3 rtime 100
T2600G-28TS(config)# ip igmp snooping multi-vlan-config 3 mtime 100
413

T2600G-28TS(config)# ip igmp snooping multi-vlan-config 3 rport
interface gigabitEthernet 1/0/3

39.13 ip igmp snooping multi-vlan-config
(router-port-forbidden)

Description

This command is used to forbid the specified ports as being router ports in
the specified multicast VLAN. To delete the forbidden router ports, use no ip

Syntax

igmp snooping multi-vlan-config router-ports-forbidd command.

ip igmp snooping multi-vlan-config [ vlan-id ] router-port-forbidd interface
{ gigabitEthernet port-list | port-channel port-channel-id }

no ip igmp snooping multi-vlan-config router-port-forbidd [ interface

{ gigabitEthernet port-list | port-channel port-channel-id } ]

Parameter
vlan-id—— The ID of the multicast VLAN.
port-list —— Forbid the specified ports as being router ports. Packets sent
from multicast routers to these ports will be discarded.

port-channel-id —— Forbid the specified port-channels as being router ports.
Packets sent from multicast routers to these port-channels will be discarded.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Forbid the Ethernet ports 1/0/1-3 as being router ports in multicast VLAN 1 :

414

T2600G-28TS(config)# ip igmp snooping multi-vlan-config 1
router-port-forbidd interface gigabitEthernet 1/0/1-3

39.14 ip igmp snooping multi-vlan-config
(source-ip-replace)

Description

This command is used to replace the multicast source IP address of the IGMP

packets in the specified multicast VLAN. To delete the forbidden router ports,

Syntax

use no ip igmp snooping multi-vlan-config replace-sourceip command.

ip igmp snooping multi-vlan-config [ vlan-id ] replace-sourceip ip
no ip igmp snooping multi-vlan-config replace-sourceip

Parameter
vlan-id—— The ID of the multicast VLAN.
ip —— Specify the IP address. The switch will use this IP address to replace
the source IP address of the IGMP packets.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Replace the source IP address of the IGMP packets in multicast VLAN 1 as
192.168.0.112:

T2600G-28TS(config)# ip igmp snooping multi-vlan-config 1
replace-sourceip 192.168.0.112

415

39.15 ip igmp snooping querier vlan
Description
The ip igmp snooping querier vlan command is used to enable the IGMP

Snooping Querier function of the VLAN(s). To disable the IGMP Snooping
Querier function of certain VLANs, use no ip igmp snooping querier vlan
command.

Syntax
ip igmp snooping querier vlan vlan-id
no ip igmp snooping querier vlan vlan-id

Parameter
vlan-id — VLAN ID, ranging from 1 to 4094.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the IGMP Snooping Querier function of VLAN 1:
T2600G-28TS(config)#ip igmp snooping querier vlan 1

39.16 ip igmp snooping querier vlan (general query)
Description
The ip igmp snooping querier vlan command is used to configure the

parameters for IGMP Snooping Querier to send a general query frame. To

return to the default configuration, use no ip igmp snooping querier vlan
command.

416

Syntax
ip igmp snooping querier vlan vlan-id { query-interval interval |

max-response-time response-time | general-query source-ip ip-addr }
no

ip

igmp

snooping

querier

max-response-time | general-query

vlan

vlan-id

source-ip }

{

query-interval

|

Parameter
vlan-id —— VLAN ID, ranging from 1 to 4094.
interval —— The time interval to send a general query frame by IGMP
Snooping Querier, ranging from 10 to 300 (Seconds). By default, it is 60
seconds.

response-time —— The maximal time for the host to respond to a general
query frame, ranging from 1 to 25 (Seconds). By default, it is 10 Seconds.

ip-addr —— The source IP of the general query frame sent by IGMP Snooping

Querier. It should not be a multicast IP or a broadcast IP. By default, it is
192.168.0.1.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
For VLAN 2, specify its query-interval as 200 seconds, and the response-time
as 20 seconds:

T2600G-28TS(config)#ip igmp snooping querier vlan 2 query-interval 200
T2600G-28TS(config)#ip igmp snooping querier vlan 2
max-response-time 20

417

39.17 ip igmp snooping max-groups
Description
The ip igmp snooping max-groups command is used to configure the

maximum number of groups that a port can join in. The ip igmp snooping

max-groups action is used to configure the action that the port takes when it

receives an IGMP report message and the maximum number of entries is in

the forwarding table. To remove the maximum group limitation and return to
the default of no limitation on the specified port, use the no ip igmp snooping

max-groups command. To return to the default action of dropping the report,

use the no ip igmp snooping max-groups action command. These
commands only apply to the dynamic multicast groups.

Syntax
ip igmp snooping max-groups [ maxgroup ]
ip igmp snooping max-groups action { drop | replace }
no ip igmp snooping max-groups
no ip igmp snooping max-groups action

Parameter
maxgroup —— Specify the maximum numbers of groups that the port can
join. It ranges from 0 to 1000 and the default value is 1000.

drop —— When the number of the dynamic multicast groups that a port joins
has exceeded the max-group, the port will not join any new multicast group.

replace —— When the number of the dynamic multicast groups that a port

joins has exceeded the max-group, the newly joined multicast group will

replace an existing multicast group with the lowest multicast group address.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

418

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the maximum numbers of groups that ports 1/0/2-5 can join as 10,
and configure the throttling action as replace:

T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-5
T2600G-28TS(config-if-range)#ip igmp snooping max-groups 10
T2600G-28TS(config-if-range)#ip igmp snooping max-groups action
replace

39.18 ip igmp snooping authentication
Description
The ip igmp snooping authenticaiton command is used to authenticate the

users who want to join the limited multicast source. To disable the multicast
authentication, use no ip igmp snooping authentication command.

Syntax
ip igmp snooping authentication
no ip igmp snooping authentication

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

419

User Guidelines
The IGMP Authentication feature will take effect only when AAA function is

enabled and the RADIUS server is configured. For how to enable AAA function
and configure RADIUS server, refer to aaa enable and radius-server host.

Example
Enable IGMP authentication on port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3

T2600G-28TS(config-if)# ip igmp snooping authentication

39.19 ip igmp snooping accounting
Description
The ip igmp snooping accounting command is used to enable IGMP

accounting globally. To disable the IGMP accouting, use no ip igmp snooping
accounting command.

Syntax
ip igmp snooping accounting
no ip igmp snooping accounting

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable IGMP accounting globally:
T2600G-28TS(config)# ip igmp snooping accounting

420

39.20 ip igmp profile
Description
The ip igmp profile command is used to create the configuration profile. To
delete the corresponding profile, use no ip igmp profile command.

Syntax
ip igmp profile id
no ip igmp profile id

Parameter
id —— Specify the id of the configuration profile, ranging from 1 to 999.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the profile 1:
T2600G-28TS(config)# ip igmp profile 1

39.21 deny
Description
The deny command is used to configure the filtering mode of profile as deny.

Syntax
deny

Command Mode
Profile Configuration Mode
421

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the filtering mode of profile 1 as deny:
T2600G-28TS(config)# ip igmp profile 1

T2600G-28TS(config-igmp-profile)#deny

39.22 permit
Description
The permit command is used to configure the filtering mode of profile as
permit.

Syntax
permit

Command Mode
Profile Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the filtering mode of profile 1 as permit:
T2600G-28TS(config)# ip igmp profile 1

T2600G-28TS(config-igmp-profile)#permit

422

39.23 range
Description
The range command is used to configure the range of the profile’s filtering
multicast address. To delete the corresponding filtering multicast address,

use no range command. A profile contains 16 filtering IP-range entries at

most.

Syntax
range start-ip end-ip
no range start-ip end-ip

Parameter
start-ip —— The start filtering multicast IP address.
end-ip —— The end filtering multicast IP address.

Command Mode
Profile Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure one of the filter multicast address entry as range 225.1.1.1 to
226.3.2.1 in profile 1:

T2600G-28TS(config)# ip igmp profile 1

T2600G-28TS(config-igmp-profile)#range 225.1.1.1 226.3.2.1

39.24 ip igmp filter
Description
The ip igmp filter command is used to bind the specified profile to the
interface. To delete the binding, use no ip igmp filter command.
423

Syntax
ip igmp filter profile-id
no ip igmp filter

Parameter
profile-id —— Specify the profile ID, ranging from 1 to 999.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Bind profile 1 to interface gigabitEthernet 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip igmp filter 1

39.25 clear ip igmp snooping statistics
Description
The clear ip igmp snooping statistics command is used to clear the
statistics of the IGMP packets.

Syntax
clear ip igmp snooping statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

424

Example
Clear the statistics of the IGMP packets:
T2600G-28TS(config)# clear ip igmp snooping statistics

39.26 show ip igmp snooping
Description
The show ip igmp snooping command is used to display the global
configuration of IGMP snooping.

Syntax
show ip igmp snooping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of IGMP:
T2600G-28TS# show ip igmp snooping

39.27 show ip igmp snooping interface
Description
The show ip igmp snooping interface command is used to display the port
configuration of IGMP snooping.

Syntax
show ip igmp snooping interface [ gigabitEthernet [ port | port-list ] ]
{ basic-config | max-groups | packet-stat }

show ip igmp snooping interface [ port-channel [ port-channel-id ] ]
{ basic-config | max-groups }

425

Parameter
port —— The Ethernet port number.
port-list —— The list of Ethernet ports.
basic-config | max-groups | packet-stat —— The related configuration

information selected to display.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IGMP baisic configuration configuration of all ports and port

channels:

T2600G-28TS# show ip igmp snooping interface basic-config
Display the IGMP basic configuration of port 1/0/2:
T2600G-28TS# show ip igmp snooping interface gigabitEthernet 1/0/2
basic-config
Display the IGMP packet statistics of ports 1/0/1-4:
T2600G-28TS# show ip igmp snooping interface gigabitEthernet 1/0/1-4
packet-stat

39.28 show ip igmp snooping vlan
Description
The show ip igmp snooping vlan command is used to display the VLAN
configuration of IGMP snooping.

Syntax
show ip igmp snooping vlan [ vlan-id ]
426

Parameter
vlan-id ——The VLAN ID selected to display.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IGMP snooping configuration information of VLAN 2:
T2600G-28TS# show ip igmp snooping vlan 2

39.29 show ip igmp snooping multi-vlan
Description
The show ip igmp snooping multi-vlan command is used to display the

Multicast VLAN configuration.

Syntax
show ip igmp snooping multi-vlan

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the Multicast VLAN configuration:
T2600G-28TS# show ip igmp snooping multi-vlan

427

39.30 show ip igmp snooping groups
Description
The show ip igmp snooping groups command is used to display the
information of all IGMP snooping groups. It can be extended to some other

commands to display the dynamic and static multicast information of a
selected VLAN.

Syntax
show ip igmp snooping groups [ vlan { vlan-id } ] [ multicast_addr | count |

dynamic | dynamic count | static | static count ]

Parameter
vlan-id ——The VLAN ID selected to display the information of all multicast
items.

multicast_addr —— IP address of the multicast group.
count—— The numbers of all multicast groups.
dynamic—— Display dynamic multicast groups.
dynamic count—— The numbers of all dynamic multicast groups.
static—— Display static multicast groups.
static count—— The numbers of all static multicast groups.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the information of all IGMP snooping groups:
T2600G-28TS#show ip igmp snooping groups
Display all the multicast entries in VLAN 5:
428

T2600G-28TS(config)#show ip igmp snooping groups vlan 5
Display the count of multicast entries in VLAN 5:
T2600G-28TS(config)#show ip igmp snooping groups vlan 5 count
Display the dynamic multicast groups of VLAN 5
T2600G-28TS(config)#show ip igmp snooping groups vlan 5 dynamic
Display the static multicast groups of VLAN 5
T2600G-28TS(config)#show ip igmp snooping groups vlan 5 static
Display the count of dynamic multicast entries of VLAN 5
T2600G-28TS(config)#show ip igmp snooping groups vlan 5 dynamic
count
Display the count of static multicast entries of VLAN 5
T2600G-28TS(config)#show ip igmp snooping groups vlan 5 static count

39.31 show ip igmp snooping querier
Description
The show ip igmp snooping querier command is used to display the Querier
configuration of VLAN.

Syntax
show ip igmp snooping querier [ vlan vlan-id ]

Parameter
vlan-id ——The VLAN ID selected to display, ranging from 1 to 4094.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
429

Example
Display all Querier information:
T2600G-28TS(config)# show ip igmp snooping querier

39.32 show ip igmp profile
Description
The show ip igmp profile command is used to display the configuration

information of all the profiles or a specific profile.

Syntax
show ip igmp profile [ id ]

Parameter
id —— Specify the ID of the profile, ranging from 1 to 999.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration information of all profiles:
T2600G-28TS(config)# show ip igmp profile

430

Chapter 40 MLD Snooping Commands
MLD Snooping (Multicast Listener Discovery Snooping) is a multicast control mechanism

running on Layer 2 switch. It can effectively prevent multicast groups being broadcasted in the
IPv6 network.

40.1

ipv6 mld snooping (global)
Description
The ipv6 mld snooping command is used to enable MLD Snooping function
globally. If this function is disabled, all related MLD Snooping function would
not work. To disable this function, use no ipv6 mld snooping command.

Syntax
ipv6 mld snooping
no ipv6 mld snooping

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable MLD Snooping:
T2600G-28TS(config)# ipv6 mld snooping

40.2

ipv6 mld snooping (interface)
Description
The ipv6 mld snooping command is used to enable MLD Snooping function
on the desired port. To disable this function, use no ipv6 mld snooping
command.

431

Syntax
ipv6 mld snooping
no ipv6 mld snooping

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable MLD Snooping on port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# ipv6 mld snooping

40.3

ipv6 mld snooping rtime
Description
The ipv6 mld snooping rtime command is used to specify router port aging
time globally. To restore the default timer, use no ipv6 mld snooping rtime
command.

Syntax
ipv6 mld snooping rtime rtime
no ipv6 mld snooping rtime

Parameter
rtime —— Specify the aging time in seconds, ranging from 60 to 600. The
default aging time is 300 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.
432

Example
Specify MLD Snooping router port aging time as 100 seconds globally:
T2600G-28TS(config)# ipv6 mld snooping rtime 100

40.4

ipv6 mld snooping mtime
Description
The ipv6 mld snooping mtime command is used to specify member port
aging time globally. The default aging time is 260 seconds. To restore the
default timer, use no ipv6 mld snooping mtime command.

Syntax
ipv6 mld snooping mtime mtime
no ipv6 mld snooping mtime

Parameter
mtime —— Specify the aging time in seconds, ranging from 60 to 600. The
default aging time is 260 seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify MLD Snooping member port aging time as 100 seconds globally:
T2600G-28TS(config)# ipv6 mld snooping mtime 100

40.5

ipv6 mld snooping report-suppression
Description
The ipv6 mld snooping report-suppression command is used enable the

MLD report suppression function. When it is enabled, the switch forwards
only the first MLD report message per mulicast group to the Layer 3 device,
433

and the subsequent MLD reports from the same multicast group are

discarded. To disable the MLD report suppression function and forward all
the MLD reports to the Layer 3 device, use no ip igmp snooping
report-suppression command. This function is disabled by default.

Syntax
ipv6 mld snooping report-suppression
no ipv6 mld snooping report-suppression

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable MLD Report message suppression function:
T2600G-28TS(config)# ipv6 mld snooping report-suppression

40.6

ipv6 mld snooping immediate-leave
Description
The ipv6 mld snooping immediate-leave command is used to configure the
Fast Leave function for port. To disable the Fast Leave function, use no ipv6

mld snooping immediate-leave command.

Syntax
ipv6 mld snooping immediate-leave
no ipv6 mld snooping immediate-leave

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

434

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the Fast Leave function for port 1/0/3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
T2600G-28TS(config-if)# ipv6 mld snooping immediate-leave

40.7

ipv6 mld snooping drop-unknown
Description
The ipv6 mld snooping drop-unknown command is used to enable the
unknown multicast packets filter function. To disable this function, use no
ipv6 mld snooping drop-unknown command. By default, it is disabled.

Syntax
ipv6 mld snooping drop-unknown
no ipv6 mld snooping drop-unknown

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable unknown multicast filter function:
T2600G-28TS(config)# ipv6 mld snooping drop-unknown

40.8

ipv6 mld snooping last-listener query-inteval
Description
The ipv6 mld snooping last-listener query-inteval command is used to
specify the interval to send Specific Query Message. The default value is 1
435

second. To restore the default interval, use no ipv6 mld snooping
last-listener query-inteval command.

Syntax
ipv6 mld snooping last-listener query-inteval interval
no ipv6 mld snooping last-listener query-inteval

Parameter
interval —— Specify the interval to send Specific Query Message in seconds,
ranging from 1 to 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the interval of Specific Query Message to 3 seconds:
T2600G-28TS(config)# ipv6 mld snooping last-listener query-inteval 3

40.9

ipv6 mld snooping last-listener query-count
Description
The ipv6 mld snooping last-listener query-count command is used to
specify the numbers of Specific Query Message to be sent. The default value
is 2. To restore the default number, use no ipv6 mld snooping last-listener
query-count command.

Syntax
ipv6 mld snooping last-listener query-count num
no ipv6 mld snooping last-listener query-count

Parameter
num —— Specify the numbers of Specific Query Message to be sent, ranging
from 1 to 5.

436

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the number of Specific Query Message to 3:
T2600G-28TS(config)# ipv6 mld snooping last-listener query-count 3

40.10 ipv6 mld snooping vlan-config
Description
The ipv6 mld snooping vlan-config command is used to enable VLAN MLD

Snooping function or to modify MLD Snooping parameters, and to create

static multicast IP entry. To disable the VLAN MLD Snooping function, use no
ipv6 mld snooping vlan-config command.

Syntax
ipv6 mld snooping vlan-config vlan-id-list [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]
ipv6

mld

snooping

vlan-config

vlan-id-list

static

{ gigabitEthernet port-list | port-channel port-channel-id }

ip

interface

no ipv6 mld snooping vlan-config vlan-id-list [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]

no ipv6 mld snooping vlan-config vlan-id-list static ip interface

{ gigabitEthernet port-list | port-channel port-channel-id }

Parameter
vlan-id-list —— The ID list of the VLAN desired to modify configuration,
ranging from 1 to 4094, in the format of 1-3, 5.
437

router-time —— Router Port Time. Within this time, if the switch does not

receive IGMP query message from the router port, it will consider this port is
not a router port any more. Router Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global router-time will be used.

member-time —— Member Port Time. Within this time, if the switch does not

receive IGMP report message from the member port, it will consider this port
is not a member port any more. Member Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global member-time will be used.

port-list —— The list of Ethernet ports.
port-channel-id —— The ID of the port channels.
ip —— The static multicast IP address.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable the MLD Snooping function and modify Router Port Time as 300

seconds, Member Port Time as 200 seconds for VLAN 1-3, and set the router

port as 1/0/1 for VLAN 1-2:

T2600G-28TS(config)# ipv6 mld snooping vlan-config 1-3 rtime 300
T2600G-28TS(config)# ipv6 mld snooping vlan-config 1-3 mtime 200
T2600G-28TS(config)# ipv6 mld snooping vlan-config 1-2 rport interface
gigabitEthernet 1/0/1
Add static multicast IP address ff01::1234:01, which corresponds to VLAN 2,
and configure the forward ports as ports 1/0/1-3:

T2600G-28TS(config)# ipv6 mld snooping vlan-config 2 static
ff01::1234:01 interface gigabitEthernet 1/0/1-3

438

40.11 ip mld snooping vlan-config
(router-port-forbidden)

Description

This command is used to forbid the specified ports as being router ports in

the specified VLAN(s). To delete the forbidden router ports, use no ipv6 mld

Syntax

snooping vlan-config vlan-id-list router-ports-forbidd command.

ipv6 mld snooping vlan-config vlan-id-list router-port-forbidd interface

{ gigabitEthernet port-list | port-channel port-channel-id }

no ipv6 mld snooping vlan-config vlan-id-list router-port-forbidd interface

[ gigabitEthernet port-list | port-channel port-channel-id ]

Parameter
vlan-id-list —— The ID list of the VLAN desired to modify configuration,
ranging from 1 to 4094, in the format of 1-3, 5.

port-list —— Forbid the specified ports as being router ports. Packets sent
from multicast routers to these ports will be discarded.

port-channel-id —— Forbid the specified port-channels as being router ports.
Packets sent from multicast routers to these port-channels will be discarded.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Forbid the Ethernet ports 1/0/1-3 as being router ports in VLAN 1 :
T2600G-28TS(config)# ipv6 mld snooping vlan-config 1
router-port-forbidd interface gigabitEthernet 1/0/1-3

439

40.12 ipv6 mld snooping multi-vlan-config
Description

The ipv6 mld snooping multi-vlan-config command is used to create

Multicast VLAN. To delete the corresponding Multicast VLAN, use no ipv6
mld snooping multi-vlan-config command. To restore the default values,

Syntax

use no ipv6 mld snooping multi-vlan-config with specified parameters.

ipv6 mld snooping multi-vlan-config [ vlan-id ] [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]

no ipv6 mld snooping multi-vlan-config [ rtime router-time | mtime

member-time | rport interface { gigabitEthernet port-list | port-channel
port-channel-id } ]

Parameter
vlan-id —— The ID of the multicast VLAN desired to create or modify, ranging

from 2 to 4094. If not specified, the default multicast VLAN will be selected.

router-time —— Router Port Time. Within this time, if the switch does not

receive IGMP query message from the router port, it will consider this port is
not a router port any more. Router Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global router-time will be used.

member-time —— Member Port Time. Within this time, if the switch does not

receive IGMP report message from the member port, it will consider this port
is not a member port any more. Member Port Time ranges from 60 to 600 in
seconds. By default, it is 0 and the global member-time will be used.

port-list —— The list of Ethernet ports.
port-channel-id —— The ID of the port channels.

Command Mode
Global Configuration Mode

440

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable Multicast VLAN 3, and configure Router Port Time as 100 seconds,
Member Port Time 100 seconds, and Static Router Port port 1/0/3:

T2600G-28TS(config)# ipv6 mld snooping multi-vlan-config 3 rtime 100
T2600G-28TS(config)# ipv6 mld snooping multi-vlan-config 3 mtime 100
T2600G-28TS(config)# ipv6 mld snooping multi-vlan-config 3 rport
interface gigabitEthernet 1/0/3

40.13 ipv6 mld snooping multi-vlan-config
(router-port-forbidden)

Description

This command is used to forbid the specified ports as being router ports in
the specified multicast VLAN. To delete the forbidden router ports, use no

Syntax

ipv6 mld snooping multi-vlan-config router-ports-forbidd command.

ipv6 mld snooping multi-vlan-config [ vlan-id ] router-port-forbidd

interface { gigabitEthernet port-list | port-channel port-channel-id }

no ipv6 mld snooping multi-vlan-config router-port-forbidd [ interface

{ gigabitEthernet port-list | port-channel port-channel-id } ]

Parameter
vlan-id—— The ID of the multicast VLAN.
port-list —— Forbid the specified ports as being router ports. Packets sent
from multicast routers to these ports will be discarded.

port-channel-id —— Forbid the specified port-channels as being router ports.
Packets sent from multicast routers to these port-channels will be discarded.

441

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Forbid the Ethernet ports 1/0/1-3 as being router ports in multicast VLAN 1 :
T2600G-28TS(config)# ipv6 mld snooping multi-vlan-config 1
router-port-forbidd interface gigabitEthernet 1/0/1-3

40.14 ipv6 mld snooping multi-vlan-config
(source-ip-replace)

Description

This command is used to replace the multicast source IP address of the MLD

packets in the specified multicast VLAN. To delete the forbidden router ports,

Syntax

use no ipv6 mld snooping multi-vlan-config replace-sourceip command.

ipv6 mld snooping multi-vlan-config [ vlan-id ] replace-sourceip ip
no ipv6 mld snooping multi-vlan-config replace-sourceip

Parameter
vlan-id—— The ID of the multicast VLAN.
ip —— Specify the IP address. The switch will use this IP address to replace
the source IP address of the MLD packets.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.
442

Example
Replace the source IP address of the MLD packets in multicast VLAN 1 as
fe80::02ff:ffff:fe00:0001:

T2600G-28TS(config)# ipv6 mld snooping multi-vlan-config 1
replace-sourceip fe80::02ff:ffff:fe00:0001

40.15 ipv6 mld snooping querier vlan
Description
The ipv6 mld snooping querier vlan command is used to enable the MLD
Querier function. To disable this function, use no ipv6 mld snooping querier
vlan command.

Syntax
ipv6 mld snooping querier vlan vlan-id
no ipv6 mld snooping querier vlan vlan-id

Parameter
vlan-id —— The VLAN that enables the MLD querier function, ranging from 1
to 4094.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Enable MLD Querier function on VLAN 2:
T2600G-28TS(config)# ipv6 mld snooping querier vlan 2

443

40.16 ipv6 mld snooping querier vlan (general
query)

Description
The ipv6 mld snooping querier vlan command is used to configure the

parameters for MLD Snooping Querier to send a general query frame. To

return to the default configuration, use no ipv6 mld snooping querier vlan
command.

Syntax
ipv6 mld snooping querier vlan vlan-id { query-interval interval |

max-response-time response-time | general-query source-ip ip-addr }
no ipv6 mld snooping querier vlan vlan-id { query-interval |

max-response-time | general-query source-ip }

Parameter
vlan-id —— VLAN ID, ranging from 1 to 4094.
interval —— The time interval to send a general query frame by MLD

Snooping Querier, ranging from 10 to 300 (Seconds). By default, it is 60
seconds.

response-time —— The maximal time for the host to respond to a general
query frame, ranging from 1 to 25 (Seconds). By default, it is 10 Seconds.

ip-addr —— The source IP of the general query frame sent by MLD Snooping
Querier. It should not be a multicast IP or a broadcast IP. By default, it is
fe80::02ff:ffff:fe00:0001.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

444

Example
For VLAN 2, specify its query-interval as 200 seconds, and the response-time
as 20 seconds:

T2600G-28TS(config)#ipv6 mld snooping querier vlan 2 query-interval
200
T2600G-28TS(config)#ipv6 mld snooping querier vlan 2
max-response-time 20

40.17 ipv6 mld snooping max-groups
Description
The ipv6 mld snooping max-groups command is used to configure the

maximum number of groups that a port can join in. The ipv6 mld snooping

max-groups action is used to configure the action that the port takes when it

receives an MLD report message and the maximum number of entries is in
the forwarding table. To remove the maximum group limitation and return to
the default of no limitation on the specified port, use the no ipv6 mld

snooping max-groups command. To return to the default action of dropping
the report, use the no ipv6 mld snooping max-groups action command.
These commands only apply to the dynamic multicast groups.

Syntax
ipv6 mld snooping max-groups [ maxgroup ]
ipv6 mld snooping max-groups action { drop | replace }
no ipv6 mld snooping max-groups
no ipv6 mld snooping max-groups action

Parameter
maxgroup —— Specify the maximum numbers of groups that the port can
join. It ranges from 0 to 1000 and the default value is 1000.

445

drop —— When the number of the dynamic multicast groups that a port joins
has exceeded the max-group, the port will not join any new multicast group.

replace —— When the number of the dynamic multicast groups that a port

joins has exceeded the max-group, the newly joined multicast group will

replace an existing multicast group with the lowest multicast group address.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range

gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the maximum numbers of groups that ports 1/0/2-5 can join as 10,
and configure the throttling action as replace:

T2600G-28TS(config)#interface range gigabitEthernet 1/0/2-5
T2600G-28TS(config-if-range)#ipv6 mld snooping max-groups 10
T2600G-28TS(config-if-range)#ipv6 mld snooping max-groups action
replace

40.18 ipv6 mld profile
Description
The ipv6 mld profile command is used to create the configuration profile. To

delete the corresponding profile, use no ipv6 mld profile command.

Syntax
ipv6 mld profile id
no ipv6 mld profile id

Parameter
id —— Specify the id of the configuration profile, ranging from 1 to 999.
446

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Create the profile 1:
T2600G-28TS(config)# ipv6 mld profile 1

40.19 deny
Description
The deny command is used to configure the filtering mode of profile as deny.

Syntax
deny

Command Mode
Profile Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the filtering mode of profile 1 as deny:
T2600G-28TS(config)# ipv6 mld profile 1

T2600G-28TS(config-igmp-profile)#deny

40.20 permit
Description
The permit command is used to configure the filtering mode of profile as
permit.

447

Syntax
permit

Command Mode
Profile Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure the filtering mode of profile 1 as permit:
T2600G-28TS(config)# ipv6 mld profile 1

T2600G-28TS(config-igmp-profile)#permit

40.21 range
Description
The range command is used to configure the range of the profile’s filtering

multicast address. To delete the corresponding filtering multicast address,

use no range command. A profile contains 16 filtering IP-range entries at

most.

Syntax
range start-ip end-ip
no range start-ip end-ip

Parameter
start-ip —— Start IPv6 multicast address of the filter entry..
end-ip —— End IPv6 multicast address of the filter entry.

Command Mode
Profile Configuration Mode

448

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Configure one of the filter multicast address entry as range ff80::1234 to
ff80::1235 in profile 1:

T2600G-28TS(config)# ipv6 mld profile 1

T2600G-28TS(config-igmp-profile)#range ff80::1234 ff80::1235

40.22 ipv6 mld filter
Description
The ipv6 mld filter command is used to bind the specified profile to the
interface. To delete the binding, use no ipv6 mld filter command.

Syntax
ipv6 mld filter profile-id
no ipv6 mld filter

Parameter
profile-id —— Specify the profile ID, ranging from 1 to 999.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Bind profile 1 to interface gigabitEthernet 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ipv6 mld filter 1

449

40.23 clear ipv6 mld snooping statistics
Description
The clear ipv6 mld snooping statistics command is used to clear the
statistics of the MLD packets.

Syntax
clear ipv6 mld snooping statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear the statistics of the MLD packets:
T2600G-28TS(config)# clear ipv6 mld snooping statistics

40.24 show ipv6 mld snooping
Description
The show ipv6 mld snooping command is used to display the global
configuration of MLD Snooping.

Syntax
show ipv6 mld snooping

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of MLD Snooping:
450

T2600G-28TS(config)# show ipv6 mld snooping

40.25 show ipv6 mld snooping interface
Description
The show ipv6 mld snooping interface command is used to display the port
configuration of MLD snooping.

Syntax
show ipv6 mld snooping interface [ gigabitEthernet [ port | port-list ] ]
{ basic-config | max-groups | packet-stat }

show ipv6 mld snooping interface [ port-channel [ port-channel-id ] ]
{ basic-config | max-groups }

Parameter
port —— The Ethernet port number.
port-list —— The list of Ethernet ports.
basic-config | max-groups | packet-stat —— The related configuration

information selected to display.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the MLD baisic configuration configuration of all ports and port
channels:

T2600G-28TS# show ipv6 mld snooping interface basic-config
Display the MLD basic configuration of port 1/0/2:

451

T2600G-28TS# show ipv6 mld snooping interface gigabitEthernet 1/0/2
basic-config
Display the MLD packet statistics of ports 1/0/1-4:
T2600G-28TS# show ipv6 mld snooping interface gigabitEthernet 1/0/1-4
packet-stat

40.26 show ipv6 mld snooping vlan
Description
The show ipv6 mld snooping vlan command is used to display VLAN
information of MLD Snooping.

Syntax
show ipv6 mld snooping vlan [ vlan-id ]

Parameter
vlan-id —— The VLAN ID selected to display, ranging from 1 to 4094.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display all of the VLAN information:
T2600G-28TS(config)# show ipv6 mld snooping vlan

40.27 show ipv6 mld snooping multi-vlan
Description
The show ipv6 mld snooping multi-vlan command is used to display the

Multicast VLAN configuration.

452

Syntax
show ipv6 mld snooping multi-vlan

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the Multicast VLAN configuration:
T2600G-28TS# show ipv6 mld snooping multi-vlan

40.28 show ipv6 mld snooping groups
Description
The show ipv6 mld snooping groups command is used to display multicast
groups.

Syntax
show ipv6 mld snooping groups [ vlan { vlan-id } ] [ ipv6_multicast_addr |
count | dynamic | dynamic count | static | static count ]

Parameter
vlan-id ——The VLAN ID selected to display the information of all multicast
items.

ipv6_multicast_addr —— IPv6 address of the multicast group.
count—— The numbers of all multicast groups.
dynamic—— Display dynamic multicast groups.
dynamic count—— The numbers of all dynamic multicast groups.
static—— Display static multicast groups.
static count—— The numbers of all static multicast groups.
453

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display all of the multicast groups:
T2600G-28TS(config)# show ipv6 mld snooping groups

40.29 show ipv6 mld snooping querier
Description
The show ipv6 mld snooping querier command is used to display the
Querier configuration of VLAN.

Syntax
show ipv6 mld snooping querier [ vlan vlan-id ]

Parameter
vlan-id ——The VLAN ID selected to display, ranging from 1 to 4094.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display all Querier information:
T2600G-28TS(config)# show ipv6 mld snooping querier

454

40.30 show ipv6 mld profile
Description
The show ipv6 mld profile command is used to display the configuration
information of all the profiles or a specific profile.

Syntax
show ipv6 mld profile [ id ]

Parameter
id —— Specify the ID of the profile, ranging from 1 to 999.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration information of all profiles:
T2600G-28TS(config)# show ipv6 mld profile

455

Chapter 41 SNMP Commands
SNMP (Simple Network Management Protocol) functions are used to manage the network
devices for a smooth communication, which can facilitate the network administrators to
monitor the network nodes and implement the proper operation.

41.1

snmp-server
Description
The snmp-server command is used to enable the SNMP function. By default,

it is disabled. To return to the default configuration, use no snmp-server
command.

Syntax
snmp-server
no snmp-server

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the SNMP function:
T2600G-28TS(config)# snmp-server

41.2

snmp-server view
Description
The snmp-server view command is used to add View. To delete the

corresponding View, use no snmp-server view command. The OID (Object

Identifier) of the SNMP packets is used to describe the managed objects of
456

the switch, and the MIB (Management Information Base) is the set of the OIDs.

The SNMP View is created for the SNMP management station to manage MIB
objects.

Syntax
snmp-server view name mib-oid { include | exclude }
no snmp-server view name mib-oid

Parameter
name —— The entry name of View, ranging from 1 to 16 characters. Each
View includes several entries with the same name.

mib-oid —— MIB Object ID. It is the Object Identifier (OID) for the entry of

View, ranging from 1 to 61 characters.

include | exclude —— View Type, with include and exclude options. They

represent the view entry can/cannot be managed by the SNMP management
station individually.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Add a View named view1, configuring the OID as 1.3.6.1.6.3.20, and this OID
can be managed by the SNMP management station:

T2600G-28TS(config)# snmp-server view view1 1.3.6.1.6.3.20 include

41.3

snmp-server group
Description
The snmp-server group command is used to manage and configure the

SNMP group. To delete the corresponding SNMP group, use no snmp-server
457

group command. SNMP v3 provides the VACM (View-based Access Control

Model) and USM (User-Based Security Model) mechanisms for authentication.
The users in the SNMP Group can manage the device via the Read View, Write

View and Notify View. And the authentication mode and the privacy mode
guarantee the high security for the communication between the management
station and the managed device.

Syntax
snmp-server group name [ smode { v1 | v2c | v3 }] [ slev { noAuthNoPriv |
authNoPriv | authPriv }] [ read read-view ] [ write write-view ] [ notify
notify-view ]
no snmp-server group name smode { v1 | v2c | v3 } slev { noAuthNoPriv |
authNoPriv | authPriv }

Parameter
name ——The SNMP Group name, ranging from 1 to 16 characters. The
Group Name, Security Model and Security Level compose the identifier of the

SNMP Group. These three items of the Users in one group should be the
same.

smode —— Security Model, with v1, v2c and v3 options. They represent
SNMP v1, SNMP v2c and SNMP v3.
slev —— The Security Level of SNMP v3 Group. There are three options,
including noAuthNoPriv (no authorization and no encryption), authNoPriv
(authorization and no encryption) and authPriv (authorization and encryption).
By default, the Security Level is noAuthNoPriv. There is no need to configure
this in SNMP v1 Mode and SNMP v2c Mode.

read-view —— Select the View to be the Read View. The management access

is restricted to read-only, and changes cannot be made to the assigned
SNMP View.

write-view —— Select the View to be the Write View. The management

access is writing only and changes can be made to the assigned SNMP View.
The View defined both as the Read View and the Write View can be read and
modified.

notify-view —— Select the View to be the Notify View. The management
station can receive notification messages of the assigned SNMP view
generated by the switch's SNMP agent.
458

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Add a group, and configure the name as group 1, the Security Model as SNMP
v3, the security level as authNoPriv, the management access to the assigned
View viewDefault as read-write, besides the notification messages sent by
View viewDefault can be received by Management station:
T2600G-28TS(config)# snmp-server group group1 smode v3 slev
authNoPriv read viewDefault write viewDefault notify viewDefault
Delete group 1:
T2600G-28TS(config)# no snmp-server group group1 smode v3 slev
authNoPriv

41.4

snmp-server user
Description
The snmp-server user command is used to add User. To delete the

corresponding User, use no snmp-server user command. The User in an

SNMP Group can manage the switch via the management station software.
The User and its Group have the same security level and access right.

Syntax
snmp-server user name { local | remote } group-name [ smode { v1 | v2c | v3 }]
[ slev { noAuthNoPriv | authNoPriv | authPriv }] [ cmode { none | MD5 | SHA }]
[ cpwd confirm-pwd ] [ emode { none | DES }] [ epwd encrypt-pwd ]
no snmp-server user name

Parameter
name —— User Name, ranging from 1 to 16 characters.
459

local | remote —— User Type, with local and remote options. Local indicates
that the user is connected to a local SNMP engine, while remote means that
the user is connected to a remote SNMP engine.

group-name —— The Group Name of the User. The User is classified to the
corresponding Group according to its Group Name, Security Model and
Security Level.

smode —— The Security Model of the User, with v1, v2c and v3 options. By
default, the option is v1. The Security Model of the User must be the same
with that of the Group which the User belongs to.

slev —— The Security Level of SNMP v3 Group. There are three options,

including noAuthNoPriv (no authorization and no encryption), authNoPriv

(authorization and no encryption) and authPriv (authorization and encryption).
By default, the option is “noAuthNoPriv”. The Security Level of the User must
be the same with that of the Group which the User belongs to.

cmode —— The Authentication Mode of the SNMP v3 User, with none, MD5
and SHA options. None indicates no authentication method is used, MD5

indicates the port authentication is performed via HMAC-MD5 algorithm and
SHA indicates the port authentication is performed via SHA (Secure Hash

Algorithm). SHA authentication mode has a higher security than MD5 mode.
By default, the Authentication Mode is “none”.

confirm-pwd —— Authentication Password, ranging from 1 to 16 characters.

The question marks and spaces are not allowed. This password in the
configuration file will be displayed in the symmetric encrypted form.

emode —— The Privacy Mode of the SNMP v3 User, with none and DES

options. None indicates no privacy method is used, and DES indicates DES
encryption method is used. By default, the Privacy Mode is “none”.

encrypt-pwd —— Privacy Password, ranging from 1 to 16 characters. The
question marks and spaces are not allowed. This password in the

configuration file will be displayed in the symmetric encrypted form.

Command Mode
Global Configuration Mode
460

Privilege Requirement
Only Admin level users have access to these commands.

Example
Add Local User admin to Group group2, and configure the Security Model of

the user as v3, the Security Level of the group as authPriv, the Authentication

Mode of the user as MD5, the Authentication Password as 11111, the Privacy
Mode as DES, and the Privacy Password as 22222:

T2600G-28TS(config)# snmp-server user admin local group2 smode v3
slev authPriv cmode MD5 cpwd 11111 emode DES epwd 22222

41.5

snmp-server community
Description
The snmp-server community command is used to add Community. To

delete the corresponding Community, use no snmp-server community

command. SNMP v1 and SNMP v2c adopt community name authentication.
The community name can limit access to the SNMP agent from SNMP
network management station, functioning as a password.

Syntax
snmp-server community name { read-only | read-write } mib-view
no snmp-server community name

Parameter
name —— Community Name, ranging from 1 to 16 characters.
read-only | read-write —— The access rights of the community, with
read-only and read-write options.

mib-view —— The MIB View for the community to access.

Command Mode
Global Configuration Mode
461

Privilege Requirement
Only Admin level users have access to these commands.

Example
Add community public, and the community has read-write management right

to View viewDefault:

T2600G-28TS(config)# snmp-server community public read-write
viewDefault

41.6

snmp-server host
Description
The snmp-server host command is used to add Notification. To delete the
corresponding Notification, use no snmp-server host command.

Syntax
snmp-server host ip udp-port user-name [ smode { v1 | v2c | v3 }] [ slev

{ noAuthNoPriv | authNoPriv | authPriv }] [ type { trap | inform }] [ retries retries ]
[ timeout timeout ]

no snmp-server host ip user-name

Parameter
ip —— The IP Address of the management Host. Both IPv4 and IPv6
addresses are supported, for example 192.168.0.100 or fe80::1234.

udp-port —— UDP port, which is used to send notifications. The UDP port
functions with the IP address for the notification sending. It ranges from 1 to

65535.

user-name —— The User name of the management station.
smode —— The Security Model of the management station, with v1, v2c and
v3 options. By default, the option is v1.

462

slev —— The Security Level of SNMP v3 Group. There are three options,
including noAuthNoPriv (no authorization and no encryption), authNoPriv
(authorization and no encryption) and authPriv (authorization and encryption).
By default, the option is “noAuthNoPriv”.

type —— The type of the notifications, with trap and inform options. Trap
indicates traps are sent, while inform indicates informs are sent. The inform
type has a higher security than the trap type and resend and timeout need to

be configured if you select this option. You can only select the trap type in
Security Model v1. By default, the type of the notifications is “trap”.

retries —— The amount of times the switch retries an inform request, ranging
from 1 to 255. The switch will resend the inform request if it doesn’t get the

response from the management station during the Timeout interval, and it will
terminate resending the inform request if the resending times reach the
specified Retry times.

timeout —— The maximum time for the switch to wait for the response from

the management station before resending a request, ranging from 1 to 3600
in seconds.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Add a Notification entry, and configure the IP address of the management

Host as 192.168.0.146, the UDP port as 162, the User name of the

management station as admin, the Security Model of the management station

as v2c, the type of the notifications as inform, the maximum time for the
switch to wait as 1000 seconds, and the retries time as 100:

T2600G-28TS(config)# snmp-server host 192.168.0.146 162 admin smode
v2c type inform retries 100 timeout 1000

463

Add a Notification entry, and configure the IP Address of the management
Host as fe80::1234, the UDP port as 162, the User name of the management

station as admin, the Security Model of the management station as v2c, the
type of the notifications as inform, the maximum time for the switch to wait as
1000 seconds, and the retries time as 100:

T2600G-28TS(config)# snmp-server host fe80::1234 162 admin smode v2c
type inform retries 100 timeout 1000

41.7

snmp-server engineID
Description
The snmp-server engineID command is used to configure the local and

remote engineID of the switch. To restore to the default setting, use no
snmp-server engineID command.

Syntax
snmp-server engineID { [ local local-engineID ] [ remote remote-engineID ] }
no snmp-server engineID

Parameter
local-engineID —— Local Engine ID for local clients. The Engine ID is a unique

alphanumeric string used to identify the SNMP engine on the switch. Its
length ranges from 10 to 64 hexadecimal characters, which must be even
number meanwhile.

remote-engineID —— Remote Engine ID for the switch. The Engine ID is a

unique alphanumeric string used to identify the SNMP engine on the remote
device which receives informs from the switch. Its length ranges from 10 to

64 hexadecimal characters, which must be even number meanwhile. The

snmp-server engineID will be disabled if the local and remote are both not

configured.

Command Mode
Global Configuration Mode
464

Privilege Requirement
Only Admin level users have access to these commands.

Example
Specify the local engineID as 1234567890, and the remote engineID as
abcdef123456:

T2600G-28TS(config)# snmp-server engineID local 1234567890 remote
abcdef123456

41.8

snmp-server traps snmp
Description
The snmp-server traps snmp command is used to enable SNMP standard

traps which include four types: linkup, linkdown, warmstart and coldstart. To

disable the sending of SNMP standard traps, use no snmp-server traps

snmp command.

Syntax
snmp-server traps snmp [ linkup | linkdown | warmstart | coldstart |

auth-failure ]

no snmp-server traps snmp [ linkup | linkdown | warmstart | coldstart |
auth-failure ]

Parameter
linkup —— Enable linkup trap. It is sent when port status changes from
linkdown to linkup. By default, it is enabled.

linkdown ——Enable linkdown trap. It is sent when port status changes from
linkup to linkdown. By default, it is enabled.

warmstart —— Enable warmstart trap. It is sent upon SNMP function reboot.
By default, it is enabled.

coldstart —— Enable coldstart trap. It is sent upon switch reboot. By default,
it is enabled.

465

auth-failure —— Enable the auth-failure trap. It is sent when a received SNMP

request fails the authentication. By default, it is enabled.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable SNMP standard linkup trap for the switch:
T2600G-28TS(config)# snmp-server traps snmp linkup

41.9

snmp-server traps link-status
Description
The snmp-server traps link-status command is used to enable SNMP link

status trap for the specified port. To disable the sending of SNMP link status
trap, use no snmp-server traps link-status command.

Syntax
snmp-server traps link-status
no snmp-server traps link-status

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable SNMP link status trap for port 3:
T2600G-28TS(config)# interface gigabitEthernet 1/0/3
466

T2600G-28TS(config-if)# snmp-server traps link-status

41.10 snmp-server traps
Description
The snmp-server traps command is used to enable SNMP extended traps.

To disable the sending of SNMP extended traps, use no snmp-server traps

command.

Syntax
snmp-server traps { bandwidth-control | cpu | flash | lldp remtableschange |

lldp topologychange | loopback-detection | storm-control | spanning-tree |

memory }
no

snmp-server

traps

{

bandwidth-control

|

cpu

|

flash

|

lldp

remtableschange | lldp topologychange | loopback-detection | storm-control

| spanning-tree | memory }

Parameter
bandwidth-control —— Enable bandwidth-control trap. It is sent when the

rate limit function is enabled and the bandwidth exceeds the predefined
value.

cpu —— Allow CPU-related trap. It is sent when CPU usage exceeds the

predefined threshold. By default, the CPU usage threshold of the switch is
80%.

flash —— Enable flash trap. It is sent when flash is modified during operations
such as backup, reset, firmware upgrade, configuration import, etc.

lldp remtableschange ——A lldp RemTablesChange notification is sent when
the value of lldp StatsRemTableLastChangeTime changes. It can be utilized
by an NMS to trigger LLDP remote systems table maintenance polls.

lldp topologychange —— a notification generated by the local device to
sense the change in the topology that indicates a new remote device

attached to a local port, or a remote device disconnected or moved from one
port to another.

467

loopback-detection —— Enable loopback-detection trap. It is sent when the

switch detects loopback or loopback is cleared.

storm-control —— Enable storm-control trap. It is sent when the multicast or

broadcast rate exceeds the predefined value.

spanning-tree —— Enable spanning-tree trap. It is sent when the port

forwarding status changes or the port receives TCN packet or packet with TC
fport-channel-.

memory —— Enable memory trap. It is sent when memory usage exceeds
80%.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable SNMP extended bandwidth-control trap for the switch:
T2600G-28TS(config)# snmp-server traps bandwidth-control

41.11 snmp-server traps ddm
Description
The snmp-server traps ddm command is used to enable SNMP DDM traps.

DDM function is used to monitor the status of the SFP modules inserted into
the SFP ports on the switch.

To disable the sending of SNMP DDM traps, use no snmp-server traps ddm

command.

Syntax
snmp-server traps ddm [ temperature | voltage | bias_current | tx_power |
rx_power ]

468

no snmp-server traps ddm [ temperature | voltage | bias_current | tx_power |
rx_power ]

Parameter
temperature —— Enable DDM Temperature trap. It is sent when the DDM

temperature value exceeds the alarm threshold or warning threshold.

voltage —— Enable DDM Voltage trap. It is sent when the DDM voltage value
exceeds the alarm threshold or warning threshold.

bias_current —— Enable DDM Bias Current trap. It is sent when the DDM bias
current value exceeds the alarm threshold or warning threshold.

tx_power —— Enable DDM Tx Power trap. It is sent when the DDM Tx power
value exceeds the alarm threshold or warning threshold.

rx_power —— Enable DDM Rx Power trap. It is sent when the DDM Rx power

value exceeds the alarm threshold or warning threshold.

User guidelines
The snmp-server traps ddm command without any parameter is used to

enable all the types of DDM traps. And the no snmp-server traps ddm
command without any parameter is used to disable all the types of DDM
traps.

For more instructions about the alarm threshold or warning threshold, refer to
Chapter 34 DDM Commands.

Command Mode
Global Configuration Mode

Example
Enable all the SNMP DDM traps for the switch:
T2500-28TC(config)# snmp-server traps ddm

469

41.12 snmp-server traps vlan
Description
The snmp-server traps vlan command is used to enable SNMP extended
VLAN-related traps which include two types: create and delete. To disable

this function, use no snmp-server traps vlan command.

Syntax
snmp-server traps vlan [ create | delete ]
no snmp-server traps vlan [create | delete ]

Parameter
create —— Enable VLAN-created trap. It is sent when new VLAN is created
successfully.

delete —— Enable VLAN-deleted traps. It is sent when VLAN is deleted

successfully.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable all SNMP extended VLAN-related traps for the switch:
T2600G-28TS(config)# snmp-server traps vlan
Enable VLAN-created trap only for the switch:
T2600G-28TS(config)# snmp-server traps vlan create

470

41.13 snmp-server traps security dhcp-snoop
Description
The snmp-server traps security dhcp-snoop command is used to enable
the illegal DHCP server trap feature. The switch will send an SNMP trap

message when untrusted port receives DHCP Server packets. To disable this
feature, use no snmp-server traps security dhcp-snoop command.

Syntax
snmp-server traps security dhcp-snoop
no snmp-server traps security dhcp-snoop

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the illegal DHCP server trap feature for the switch:
T2600G-28TS(config)# snmp-server traps security dhcp-snoop

41.14 rmon history
Description
The rmon history command is used to configure the history sample entry. To
return to the default configuration, use no rmon history command. RMON
(Remote Monitoring), basing on SNMP architecture, functions to monitor the

network. History Group is one of the commonly used RMON Groups. After a
history group is configured, the switch collects network statistics information
periodically, based on which the management station can monitor network
effectively.

471

Syntax
rmon history index interface gigabitEthernet port [ interval seconds ]

[ owner owner-name ]

[ buckets number ]

no rmon history index

Parameter
index —— The index number of the entry, ranging from 1 to 12, in the format
of 1-3,5.

port ——The Ethernet port number.
seconds —— The interval to take samplings from the port, ranging from 10 to
3600 in seconds. By default, it is 1800.

owner-name —— The owner of the history sample entry, ranging from 1 to 16
characters. By default, it is “monitor”.

number —— The maximum number of buckets desired for the RMON history
group of statistics, ranging from 1 to 130. The default is 50 buckets.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the sample port as Gi1/0/2 and the sample interval as 100 seconds
for the entry 1-3:

T2600G-28TS(config)# rmon history 1-3 interface gigabitEthernet 1/0/2
interval 100 owner owner1

472

41.15 rmon event
Description
The rmon event command is used to configure the entries of SNMP-RMON

Event. To return to the default configuration, use no rmon event command.

Event Group, as one of the commonly used RMON Groups, is used to define
RMON events. Alarms occur when an event is detected.

Syntax
rmon event index [ user user-name ] [ description descript ] [ type { none |

log | notify | log-notify }] [ owner owner-name ]
no rmon event index

Parameter
index —— The index number of the event entry, ranging from 1 to 12. You can

only select one entry for each command.

user-name —— The name of the User to which the event belongs, ranging

from 1 to 16 characters. By default, it is “public”.

descript —— The description of the event, ranging from 1 to 16 characters.
By default, it is empty.

type —— The event type, with none, log, notify and both options. None
indicates no processing, log indicates logging the event, notify indicates

sending trap messages to the management station, and both indicates
logging the event and sending trap messages to the management station.

owner-name —— The owner of the event entry, ranging from 1 to 16
characters. By default, it is “monitor”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.
473

Example
Configure the user name of entry 1, 2, 3 and 4 as user1, the description of the
event as description1, the type of event as log and the owner of the event as
owner1:

T2600G-28TS(config)# rmon event 1-4 user user1 description description1
type log owner owner1

41.16 rmon alarm
Description
The rmon alarm command is used to configure SNMP-RMON Alarm
Management. To return to the default configuration, use no rmon alarm

command. Alarm Group is one of the commonly used RMON Groups. RMON
alarm management allows monitoring the specific alarm variables. When the

value of a monitored variable exceeds the threshold, an alarm event is
generated, which triggers the switch to act in the set way.

Syntax
rmon alarm index { stats-index sindex } [ alarm-variable { revbyte | revpkt |

bpkt | mpkt | crc-lign | undersize | oversize | jabber | collision | 64 | 65-127 |

128-511 | 512-1023 | 1024-10240 }] [ s-type { absolute | delta} ]

[ rising-threshold r-hold ] [ rising-event-index r-event] [ falling-threshold

f-hold] [ falling-event-index f-event] [ a-type {rise | fall | all} ] [ owner
owner-name ] [ interval interval]
no rmon alarm index

Parameter
index —— The index number of the Alarm Management entry, ranging from 1

to 12, in the format of 1-3,5.

sindex —— Specify the statistics index.
alarm-variable —— The alarm variable. By default, the option is revbyte.

474

s-type —— Sample Type, which is the sampling method for the selected

variable and comparing the value against the thresholds. There are two
options, absolute and delta. Absolute indicates comparing the values directly
with the thresholds at the end of the sampling interval. Delta indicates
subtracting the last sampled value from the current value, and then

comparing the difference in the values with the threshold. By default, the
Sample Type is absolute.

r-hold —— The rising counter value that triggers the Rising Threshold alarm,

ranging from 1 to 2147483647. By default, it is 100.

r-event —— Rise Event, which is the index of the corresponding event which

will be triggered if the sampled value is larger than the Rising Threshold. It
ranges from 1 to 12.

f-hold —— The falling counter value that triggers the Falling Threshold alarm,

ranging from 1 to 2147483647. By default, it is 100.

f-event —— Fall Event, which is the index of the corresponding event which
will be triggered if the sampled value is lower than the Falling Threshold. It
ranges from 1 to 12.

a-type —— Alarm Type, with rise, fall and all options. Rise indicates that the

alarm event will be triggered when the sampled value exceeds the Rising

Threshold, fall indicates that the alarm event will be triggered when the

sampled value is under the Falling Threshold, and all indicates that the alarm
event will be triggered either the sampled value exceeds the Rising Threshold

or is under the Falling Threshold. By default, the Alarm Type is all.

owner-name —— The owner of the entry, ranging from 1 to 16 characters. By

default, it is monitor.

interval —— The alarm interval time, ranging from 10 to 3600 in seconds. By

default, it is 1800.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.
475

Example
Configure rmon alarm entries 1-3 binding with statistics entry 2, the owners

as owner1 and the alarm intervals as 100 seconds:

T2600G-28TS(config)#rmon alarm 1-3 stats-index 2 owner owner1 interval
100

41.17 rmon statistics
Description
The rmon statistics command is used to configure the entries of
SNMP-RMON statistics. To delete the corresponding entry, use no rmon
statistics command. The maximum supported entries are 1000.

Syntax
rmon statistics index interface gigabitEthernet port [ owner owner-name]

[ status { underCreation | valid }]
no rmon statistics index

Parameter
index —— The index number of the statistics entry, ranging from 1 to 65535,
in the format of 1-3,5.

port —— The statistics port number, in the format of 1/0/1.
owner-name —— The creator of the event entry, ranging from 1 to 16
characters. By default, it is “monitor”.
status

—— The status of the statistics entry, either “underCreation” or

“valid”. “underCreation” means this entry won’t take effect until it is modified
to “valid”; “valid” means this entry takes effect immediately after it is created.

Command Mode
Global Configuration Mode

476

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the statistics entries 1-3 with the statistics port as 1/0/1, owner as

owner1 and status as valid:

T2600G-28TS(config)#rmon statistics 1-3 interface gigabitEthernet 1/0/1
owner owner1 status valid

41.18 show snmp-server
Description
The show snmp-server command is used to display SNMP configuration

globally.

Syntax
show snmp-server

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display SNMP configuration globally:
T2600G-28TS# show snmp-server

41.19 show snmp-server view
Description
The show snmp-server view command is used to display the View table.
477

Syntax
show snmp-server view

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the View table:
T2600G-28TS# show snmp-server view

41.20 show snmp-server group
Description
The show snmp-server group command is used to display the Group table.

Syntax
show snmp-server group

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the Group table:
T2600G-28TS# show snmp-server group

478

41.21 show snmp-server user
Description
The show snmp-server user command is used to display the User table.

Syntax
show snmp-server user

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the User table:
T2600G-28TS# show snmp-server user

41.22 show snmp-server community
Description
The show snmp-server community command is used to display the
Community table.

Syntax
show snmp-server community

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

479

Example
Display the Community table:
T2600G-28TS# show snmp-server community

41.23 show snmp-server host
Description
The show snmp-server host command is used to display the Host table.

Syntax
show snmp-server host

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the Host table:
T2600G-28TS# show snmp-server host

41.24 show snmp-server engineID
Description
The show snmp-server engineID command is used to display the engineID

of the SNMP.

Syntax
show snmp-server engineID

Command Mode
Privileged EXEC Mode and Any Configuration Mode
480

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the engineID:
T2600G-28TS# show snmp-server engineID

41.25 show rmon history
Description
The show rmon history command is used to display the configuration of the

history sample entry.

Syntax
show rmon history [ index ]

Parameter
index —— The index number of the entry selected to display the

configuration, ranging from 1 to 12, in the format of 1-3, 5. You can select
more than one entry for each command. By default, the configuration of all
history sample entries is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the configuration of all history sample entries:
T2600G-28TS# show rmon history

481

41.26 show rmon event
Description
The show rmon event command is used to display the configuration of
SNMP-RMON Event.

Syntax
show rmon event [ index ]

Parameter
index —— The index number of the entry selected to display the

configuration, ranging from 1 to 12, in the format of 1-3, 5. You can select
more than one entry for each command. By default, the configuration of all
SNMP-RMON enabled entries is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the Event configuration of entry1-4:
T2600G-28TS# show rmon event 1-4

41.27 show rmon alarm
Description
The show rmon alarm command is used to display the configuration of the
Alarm Management entry.

Syntax
show rmon alarm [ index ]
482

Parameter
index —— The index number of the entry selected to display the

configuration, ranging from 1 to 12, in the format of 1-3, 5. You can select
more than one entry for each command. By default, the configuration of all
Alarm Management entries is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the configuration of the Alarm Management entry 1-2:
T2600G-28TS# show rmon alarm 1-2

41.28 show rmon statistics
Description
The show rmon statistics command is used to display the configuration of
the specified statistics entry.

Syntax
show rmon statistics [ index ]

Parameter
index —— The index number of the statistics entry selected to display the
configuration, ranging from 1 to 65535. By default, the configuration of all
statistics entries is displayed.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

483

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the configuration of the statistics entry 1:
T2600G-28TS#show rmon statistics 1

484

Chapter 42 LLDP Commands
LLDP function enables network devices to advertise their own device information periodically

to neighbors on the same LAN. The information of the LLDP devices in the LAN can be stored
by its neighbor in a standard MIB, so it is possible for the information to be accessed by a

Network Management System (NMS) using SNMP.

42.1

lldp
Description
The lldp command is used to enable LLDP function. To disable the LLDP
function, use no lldp command.

Syntax
lldp
no lldp

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable LLDP function globally:
T2600G-28TS(config)#lldp

42.2

lldp forward_message

Note: T2600G-18TS doesn’t support this command.

485

Description
The lldp forward_message command is used to enable the switch to forward
LLDP messages when LLDP function is disabled. To disable the LLDP
messages forwarding function, use no lldp forward_message command.

Syntax
lldp forward_message
no lldp forward_message

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the switch to forward LLDP messages when LLDP function is disabled
globally:

T2600G-28TS(config)#lldp forward_message

42.3

lldp hold-multiplier
Description
The lldp hold-multiplier command is used to configure the Hold Multiplier

parameter. The aging time of the local information in the neighbor device is

determined by the actual TTL value used in the sending LLDPDU. TTL = Hold

Multiplier * Transmit Interval. To return to the default configuration, use no
lldp hold-multiplier command.

Syntax
lldp hold-multiplier multiplier
no lldp hold-multiplier

486

Parameter
multiplier —— Configure the Hold Multiplier parameter. It ranges from 2 to 10.
By default, it is 4.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify Hold Multiplier as 5:
T2600G-28TS(config)#lldp hold-multiplier 5

42.4

lldp timer
Description
The lldp timer command is used to configure the parameters about

transmission. To return to the default configuration, use no lldp timer
command.

Syntax
lldp timer { tx-interval tx-interval | tx-delay tx-delay | reinit-delay reinit-delay

| notify-interval notify-interval | fast-count fast-count }

no lldp timer { tx-interval | tx-delay | reinit-delay | notify-interval | fast-count }

Parameter
tx-interval —— Configure the interval for the local device to transmit LLDPDU
to its neighbors. The value ranges from 5 to 32768 and the default value is 30
seconds.

tx-delay —— Configure a value from 1 to 8192 in seconds to specify the time

for the local device to transmit LLDPDU to its neighbors after changes occur
so as to prevent LLDPDU being sent frequently. By default, it is 2 seconds.
487

reinit-delay —— This parameter indicates the amount of delay from when

LLDP status becomes "disable" until re-initialization will be attempted. The
value ranges from 1 to 10 and the default value is 3.

notify-interval —— Specify the interval of Trap message which will be sent

from local device to network management system. The value ranges from 5
to 3600 and the default value is 5 seconds.

fast-count —— When the port's LLDP state transforms from Disable (or
Rx_Only) to Tx&Rx (or Tx_Only), the fast start mechanism will be enabled, that

is, the transmit interval will be shorten to a second, and several LLDPDUs will

be sent out (the number of LLDPDUs equals this parameter). The value ranges

from 1 to 10 and the default value is 3.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the Transmit Interval of LLDPDU as 45 seconds and Trap message to
NMS as 120 seconds:

T2600G-28TS(config)#lldp timer tx-interval 45
T2600G-28TS(config)#lldp timer notify-interval 120

42.5

lldp receive
Description
The lldp receive command is used to enable the designated port to receive
LLDPDU. To disable the function, use no lldp receive command.

Syntax
lldp receive
no lldp receive
488

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable Gigabit Ethernet port 1/0/1 to receive LLDPDU:
T2600G-28TS(config)#interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#lldp receive

42.6

lldp transmit
Description
The lldp transmit command is used to enable the designated port to transmit
LLDPDU. To disable the function, use no lldp transmit command.

Syntax
lldp transmit
no lldp transmit

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable Gigabit Ethernet port 1/0/1 to transmit LLDPDU:
T2600G-28TS(config)# interface gigabitEthernet 1/0/1
489

T2600G-28TS(config-if)#lldp transmit

42.7

lldp snmp-trap
Description
The lldp snmp-trap command is used to enable the port’s SNMP notification.
If enabled, the port will notify the trap event to network management system.
To disable the ports' SNMP notification, use no lldp snmp-trap command.

Syntax
lldp snmp-trap
no lldp snmp-trap

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the SNMP notification for Gigabit Ethernet port 1/0/1:
T2600G-28TS(config)#interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#lldp snmp-trap

42.8

lldp tlv-select
Description
The lldp tlv-select command is used to configure TLVs to be included in

outgoing LLDPDU. To exclude TLVs, use no lldp tlv-select command. By
default, All TLVs are included in outgoing LLDPDU.

490

Syntax
lldp tlv-select { [ port-description ] [ system-capability ] [ system-description ]

[ system-name ] [ management-address ] [ port-vlan ] [ protocol-vlan ]

[ vlan-name ] [ link-aggregation ] [ mac-phy-cfg ] [ max-frame-size ] [ power ]

[ all ] }
no

lldp

tlv-select

{

[

port-description

]

[

system-capability

]

[ system-description ] [ system-name ] [ management-address ] [ port-vlan ]

[ protocol-vlan ] [ vlan-name ] [ link-aggregation ] [ mac-phy-cfg ]

[ max-frame-size ] [ power ] [ all ] }

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Exclude “management-address” and “port-vlan-id” TLVs in LLDPDU outgoing

from Gigabit Ethernet port 1/0/1:

T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# no lldp tlv-select management-address port-vlan

42.9

lldp management address
Description
The lldp management address command is used to configure the port‘s

management address to be included in management address TLV. The NMS

uses management addresses to identify the devices. To delete the port‘s
management address, use no lldp management address command.

Syntax
lldp management address { ip-address }
491

no lldp management address

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the port‘s management address as 192.168.1.100 for Gigabit
Ethernet port 1/0/1:

T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# lldp management address 192.168.0.100

42.10 lldp med-fast-count
Description
The lldp med-fast-count command is used to configure the number of the

LLDP-MED frames that will be sent out. When LLDP-MED fast start

mechanism is activated, multiple LLDP-MED frames will be transmitted based

on this parameter. The default value is 4. To return to the default
configuration, use no lldp med-fast-count command.

Syntax
lldp med-fast-count count
no lldp med-fast-count

Parameter
count —— Configure the Fast Start Count parameter. It ranges from 1 to 10.
By default, it is 4.

Command Mode
Global Configuration Mode
492

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify Fast Start Count as 5:
T2600G-28TS(config)# lldp med-fast-count 5

42.11 lldp med-status
Description
The lldp med-status command is used to enable the LLDP-MED feature for

the corresponding port. After the LLDP-MED feature is enabled, the port's
Admin Status will be changed to Tx&Rx. To disable the LLDP-MED feature for

the corresponding port, use no lldp med-status command.

Syntax
lldp med-status
no lldp med-status

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the LLDP-MED feature for port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# lldp med-status

493

42.12 lldp med-tlv-select
Description
The lldp med-tlv-select command is used to configure LLDP-MED TLVs to

be included in outgoing LLDPDU for the corresponding port. To exclude

LLDP-MED TLVs, use no lldp med-tlv-select command. By default, All TLVs

are included in outgoing LLDPDU.

Syntax
lldp med-tlv-select { [inventory-management] [location] [network-policy]
[power-management] [all] }

no lldp med-tlv-select { [inventory-management] [location] [network-policy]
[power-management] [all] }

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Exclude “network policy” and “inventory” TLVs in LLDPDU outgoing from port
1/0/2:

T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# no lldp med-tlv-select network-policy inventorymanagement

494

42.13 lldp med-location
Description
The lldp med-location command is used to configure the Location

Identification TLV's content in outgoing LLDPDU of the port.

Syntax
lldp

med-location

{

emergency-number

identifier

|

civic-address

[ [ language language ] [ province-state province-state ] [ county county] [city

city ] [ street street ] [ house-number house-number ] [name name ]

[

postal-zipcode

postal-zipcode

]

[

room-number

room-number

]

[ post-office-box post-office-box ] [ additional additional ] [ country-code

country-code ] [ what { dhcp-server | endpoint | switch } ] ] }

Parameter
emergency-number —— Emergency Call Service ELIN identifier, which is
used during emergency call setup to a traditional CAMA or ISDN trunk-based

PSAP. The length of this field ranges from 10 to 25 characters.

civic-address —— The civic address is defined to reuse the relevant

sub-fields of the DHCP option for civic Address based Location Configuration

Information as specified by IETF.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Configure the civic address in the Location Identification TLV's content in
outgoing LLDPDU of port 1/0/2. Configure the language as English and city as
London:

T2700-28TQ (config)# interface gigabitEthernet 1/0/2
495

T2700-28TQ(config-if)# lldp med-location civic-address language English
city London

42.14 show lldp
Description
The show lldp command is used to display the global configuration of LLDP.

Syntax
show lldp

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of LLDP:
T2600G-28TS#show lldp

42.15 show lldp interface
Description
The show lldp interface command is used to display LLDP configuration of

the corresponding port. By default, the LLDP configuration of all the ports will
be displayed.

Syntax
show lldp interface [ gigabitEthernet port ]

Parameters
port —— The Ethernet port number.
496

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the LLDP configuration of Gigabit Ethernet port 1/0/1:
T2600G-28TS#show lldp interface gigabitEthernet 1/0/1

42.16 show lldp local-information interface
Description
The show lldp local-information interface command is used to display the

LLDP information of the corresponding port. By default, the LLDP information
of all the ports will be displayed.

Syntax
show lldp local-information interface [ gigabitEthernet port ]

Parameters
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the LLDP information of Gigabit Ethernet port 1/0/1:
T2600G-28TS#show lldp local-information interface gigabitEthernet 1/0/1

497

42.17 show lldp neighbor-information interface
Description
The show lldp neighbor-information interface command is used to display

the neighbor information of the corresponding port. By default, the neighbor
information of all the ports will be displayed.

Syntax
show lldp neighbor-information interface [ gigabitEthernet port ]

Parameters
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the neighbor information of Gigabit Ethernet port 1/0/1:
T2600G-28TS#show lldp neighbor-information interface gigabitEthernet
1/0/1

42.18 show lldp traffic interface
Description
The show lldp traffic interface command is used to display the LLDP

statistic information between the local device and neighbor device of the
corresponding port. By default, the LLDP statistic information of all the ports
will be displayed.

Syntax
show lldp traffic interface [ gigabitEthernet port ]
498

Parameters
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the LLDP statistic information of Gigabit Ethernet port 1/0/1:
T2600G-28TS#show lldp traffic interface gigabitEthernet 1/0/1

499

Chapter 43 sFlow Commands
Note: T2600G-18TS doesn’t support sFlow feature.
sFlow (Sampled Flow) is a technology for accurately monitoring network traffic at high speeds.

The sFlow monitoring system consists of an sFlow agent (embedded in a switch or router or in
a standalone probe) and a central sFlow collector. The sFlow agent is a virtual entity using
sampling technology to capture traffic statistics from the device it is monitoring. The sFlow
collector can be a host receiving sFlow datagrams from the sFlow agent.

The sFlow feature is implemented as follows: the sFlow sampler take samples of traffic
statistics and send sFlow datagrams to the sFlow agent for processing. The sFlow agent will
forward sFlow datagrams to the sFlow collector for analysis. The analytic results can be
displayed on the sFlow collector.

43.1

sflow address
Description
The sflow address command is used to configure the sFlow agent’s IP

address. To delete the configured address, use no sflow address command.

Syntax
sflow address { ipv4-addr }
no sflow address { ipv4-addr }

Parameter
ipv4-addr ——The IP address of the sFlow agent. The type of the IP address

should be IPv4. For example, you can set the switch’s management IP as the
IP address of the sFlow agent.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.
500

Example
Configure the sFlow agent with the IP address as 192.168.0.1:
T2600G-28TS(config)#sflow address 192.168.0.1

43.2

sflow enable
Description
The sflow enable command is used to enable sFlow function. To disable the
sFlow function, use no sflow enable command.

Syntax
sflow enable
no sflow enable

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

User Guidelines
A valid agent address should be assigned to the sFlow agent embedded in
the switch before you enable the sFlow function.

Example

Enable sFlow function globally:
T2600G-28TS(config)#sflow enable

43.3

sflow collector collector-ID
Description
The sflow collector collector-ID command is used to configure the

parameters about the sFlow collector.
501

Syntax
sflow collector collector-ID value { [descript descript ] | [ ip ip ] | [ port port ] |

[ maxData maxData ] | [ timeout timeout ] }

Parameter
value —— The ID of the sFlow collector you desire to configure. The value
ranges from 1 to 4.

descript ——Give a description to the sFlow collector, which contains 16

characters at most.

ip ——The IP address of the sFlow collector. The type of the IP address
should be IPv4, for example 192.168.0.100.

port ——The number of the udp port which is selected for the sFlow

collector.

maxData ——Specify the maximum number of data bytes that can be sent in

a single sample datagram. The value ranges from 300 to 1400 and the default
value is 300 bytes.

timeout ——Specify the aging time of the sFlow collector, ranging from 0 to
2000000 seconds. When the timeout is set to 0, it means the life cycle of the
collector is infinite.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin and Operator level users have access to these commands.

Example
Specify the ip of the sFlow collector 1 as 192.168.0.100, the port as 3000:
T2600G-28TS(config)# sflow collector collector-ID 1 ip 192.168.0.100
T2600G-28TS(config)# sflow collector collector-ID 1 port 3000

502

43.4

sflow sampler
Description
The sflow sampler command is used to configure the parameters about the
sFlow sampler.

Syntax
sflow sampler { [ collector-ID value ] | [ ingRate ingress-rate ] [ egRate
egress-rate ] | [ maxHeader maxHeader ] }

Parameter
value —— The ID of the sFlow collector which the sFlow sampler will send
sFlow datagrams to. The value ranges from 0 to 4. When the value is zero, it
means no collector is selected.

ingress-rate ——Specify the ingress sampling frequency of the sFlow

sampler. When a sample is taken, the value indicates how many packets to
skip before the next sample is taken. The value ranges from 1024 to 65535
and the default value is 0 which means no packets will be sampled.

egress-rate ——Specify the egress sampling frequency of the sFlow sampler.
When a sample is taken, the value indicates how many packets to skip before

the next sample is taken. The value ranges from 1024 to 65535 and the
default value is 0 which means no packets will be sampled.

maxHeader ——Specify the maximum number of bytes that should be copied

from a sampled packet. The value ranges from 18 to 256 and the default
value is 128 bytes.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
Only Admin and Operator level users have access to these commands.

503

Example
Configure Gigabit Ethernet port 1 as the sFlow sampler: specify the
Collector-ID as 1, the ingress rate as 1024:

T2600G-28TS(config)#interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)#sflow sampler collector-ID 1
T2600G-28TS(config-if)#sflow sampler ingRate 1024

43.5

show sflow global
Description
The show sflow global command is used to display the global configuration
of sFlow.

Syntax
show sflow global

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of sFlow:
T2600G-28TS#show sflow global

43.6

show sflow collector
Description
The show sflow collector command is used to display the global

configuration of the sFlow collector.

504

Syntax
show sflow collector

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of the sFlow collector:
T2600G-28TS#show sflow collector

43.7

show sflow sampler
Description
The show sflow sampler command is used to display the global
configuration of the sFlow sampler.

Syntax
show sflow sampler

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the global configuration of the sFlow sampler:
T2600G-28TS#show sflow sampler

505

Chapter 44 Static Routes Commands
44.1

interface vlan
Description
This interface vlan command is used to create the VLAN interface. To delete

the specified VLAN interface, use the no interface vlan command.

Syntax
interface vlan { vid }
no interface vlan { vid }

Parameter
vid —— The ID of the VLAN.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the VLAN interface 2:
T2600G-28TS(config)# interface vlan 2

44.2

interface loopback
Description
This interface loopback command is used to create the loopback interface.
To delete the specified loopback interface, use the no interface loopback
command.

506

Syntax
interface loopback { id }
no interface loopback { id }

Parameter
id —— The ID of the loopback interface, ranging from 1 to 64.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the loopback interface 1:
T2600G-28TS(config)# interface loopback 1

44.3

switchport
Description
This switchport command is used to switch the Layer 3 interface into the
Layer 2 port. To switch the Layer 2 port into the Layer 3 routed port, use the
no switchport command.

Syntax
switchport
no switchport

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

507

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Switch the gigabitEthernet port 1/0/9 into the routed port:
T2600G-28TS(config)# interface gigabitEthernet 1/0/9
T2600G-28TS(config-if)# no switchport

44.4

interface range port-channel
Description
This interface range port-channel command is used to create multiple
port-channel interfaces.

Syntax
interface range port-channel port-channel-list

Parameter
port-channel-list —— The list of the port-channel interface, ranging from 1 to
14, in the format of 1-3, 5.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the port-channel interfaces 1,3,4 and 5:
T2600G-28TS(config)# interface port-channel 1,3-5

508

44.5

description
Description
This description command is used to add a description to the Layer 3
interface, including routed port, port-channel interface, loopback interface

and VLAN interface. To clear the description of the corresponding interface,
use the no description command.

Syntax
description string
no description

Parameter
string —— Content of an interface description, ranging from 1 to 32
characters.

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a description system-if to the routed port 1/0/9 :
T2600G-28TS(config)# interface gigabitEthernet 1/0/9
T2600G-28TS(config-if)# no switchport

T2600G-28TS(config-if)# description system-if

44.6

shutdown
Description
This shutdown command is used to shut down the specified interface. The

interface type include: routed port, port-channel interface, loopback interface
509

and VLAN interface. To enable the specified interface, use the no shutdown
command.

Syntax
shutdown
no shutdown

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Shut down the routed port 1/0/9 :
T2600G-28TS(config)# interface gigabitEthernet 1/0/9
T2600G-28TS(config-if)# no switchport
T2600G-28TS(config-if)# shutdown

44.7

interface port-channel
Description
This interface port-channel command is used to create the port-channel

interface. To delete the specified port-channel interface, use the no interface
port-channel command.

Syntax
interface port-channel { port-channel-id }
no interface port-channel { port-channel-id }

Parameter
port-channel-id —— The ID of the port-channel interface, ranging from 1 to
14.

510

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the port-channel interface 1:
T2600G-28TS(config)# interface port-channel 1

44.8

ip route
Description
This ip route command is configure the static route. To clear the
corresponding entry, use the no ip route command.

Syntax
ip route { dest-address } { mask } { next-hop-address } [ distance ]
no ip route { dest-address } { mask } { next-hop-address }

Parameter
dest-address —— The destination IP address.
mask —— The subnet mask.
next-hop-address —— The address of the next-hop.
distance —— The distance metric of this route, ranging from 1 to 255. The

smaller the distance is, the higher the priority is.

Command Mode
Global Configuration Mode

511

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a static route with the destination IP address as 192.168.2.0, the
subnet mask as 255.255.255.0 and the next-hop address as 192.168.0.2:
T2600G-28TS(config)# ip route 192.168.2.0 255.255.255.0 192.168.0.2

44.9

ipv6 routing
Description
This ipv6 routing command is enale the IPv6 routing feature globally. To
diable IPv6 routing, use the no ipv6 routing command.

Syntax
ipv6 routing
no ipv6 routing

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

User Guidelines
For T2600G-18TS, before enable the IPv6 routing feature, you should
configure the SDM template as "enterpriseV6" and save your configurations.
For more information about SDM configuration, refer to sdm prefer.

Example
Enable IPv6 routing globally:
T2600G-28TS(config)# ipv6 routing

512

44.10 ipv6 route
Description
This ipv6 route command is configure the IPv6 static route. To clear the
corresponding entry, use the no ipv6 route command.

Syntax
ipv6 route { ipv6-dest-address } { next-hop-address } [ distance ]
no ipv6 route { ipv6-dest-address } { next-hop-address }

Parameter
ipv6-dest-address—— The IPv6 address of the destination network.
next-hop-address —— The IPv6 address of the next-hop.
distance —— The distance metric of this route, ranging from 1 to 255. The

smaller the distance is, the higher the priority is.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create a static route with the destination network IP address as 3200::/64 and
the next-hop address as 3100::1234:

T2600G-28TS(config)# ipv6 route 3200::/64 3100::1234

44.11 show interface vlan
Description
The show interface vlan command is used to display the information of the

specified interface VLAN.

513

Syntax
show interface vlan vid

Parameter
vid —— The VLAN ID.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the information of VLAN 2:
T2600G-28TS(config)#show interface vlan 2

44.12 show ip interface
Description
This show ip interface command is used to display the detailed information

of the specified Layer 3 interface.

Syntax
show ip interface [ gigabitEthernet port | port-channel port-channel-id |

loopback id | vlan vlan-id ]

Parameter
port —— The port number.
port-channel-id —— The ID of the port channel. Member ports in this port
channel should all be routed ports.

id —— The loopback interface ID.
vlan-id —— The VLAN interface ID.

514

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the detailed information of the VLAN interface 2:
T2600G-28TS(config)# show ip interface vlan 2

44.13 show ip interface brief
Description
This show ip interface brief command is used to display the summary
information of the Layer 3 interfaces.

Syntax
show ip interface brief

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the summary information of the Layer 3 interfaces:
T2600G-28TS(config)# show ip interface brief

44.14 show ip route
Description
This show ip route command is used to display the route entries of the
specified type.

515

Syntax
show ip route [ static | connected ]

Parameter
static | connected —— Specify the route type. If not specified, all types of
route entries will be displayed.
static: The static routes.
connected: The connected routes.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the static routes:
T2600G-28TS(config)# show ip route static

44.15 show ip route specify
Description
This show ip route specify command is used to display the valid routing

information to the specified IP address or network segments.

Syntax
show ip route specify { ip } [ mask ] [ longer-prefixes ]

Parameter
ip —— Specify the destination IP address.
mask —— Specify the destination IP address together with the parameter ip.
longer-prefixes —— Specify the destination subnets that match the network
segment determined by the ip and mask parameters.
516

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the shortest route to 192.168.0.100:
T2600G-28TS(config)# show ip route specify 192.168.0.100
Look up the route entry with the destination as 192.168.0.0/24:
T2600G-28TS(config)# show ip route specify 192.168.0.0 255.255.255.0
Display the routes to all the subnets that belongs to 192.168.0.0/16:
T2600G-28TS(config)# show ip route specify 192.168.0.0 255.255.0.0
longer-prefixes

44.16 show ip route summary
Description
This show ip route summary command is used to display the summary
information of the route entries classified by their sources.

Syntax
show ip route summary

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the summary information of route entries:
T2600G-28TS(config)# show ip route summary
517

44.17 show ipv6 interface
Description
This command is used to display the configured IPv6 information of the
management interface, including ipv6 function status, link-local address and

global address, IPv6 multicast groups etc.

Syntax
show ipv6 interface

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IPv6 information of the management interface:
T2600G-28TS(config)# show ipv6 interface

44.18 show ipv6 route
Description
This show ipv6 route command is used to display the IPv6 route entries of

the specified type.

Syntax
show ipv6 route [ static | connected ]

Parameter
static | connected —— Specify the route type. If not specified, all types of
route entries will be displayed.
static: The static routes.
connected: The connected routes.
518

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the IPv6 static routes:
T2600G-28TS(config)# show ipv6 route static

44.19 show ipv6 route summary
Description
This show ipv6 route summary command is used to display the summary
information of the IPv6 route entries classified by their sources.

Syntax
show ipv6 route summary

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the summary information of IPv6 route entries:
T2600G-28TS(config)# show ipv6 route summary

519

Chapter 45 SDM Template Commands
This chapter describes how to configure the Switch Database Management (SDM) templates to
allocate hardware resources on the switch for different uses.

45.1

sdm prefer
Description
The sdm prefer command is used to configure the SDM template. The SDM

template is used to allocate system resources to best support the features

being used in your application. To return to use the default template, use the

sdm prefer default command. The template change will takes effect after a
reboot.

Syntax
sdm prefer { default | enterpriseV4 | enterpriseV6 }

Parameter
default —— Specify the SDM template used in the switch as “default”.
enterpriseV4 —— Specify the SDM template used in the switch as
“enterpriseV4”.

enterpriseV6 —— Specify the SDM template used in the switch as

“enterpriseV6”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Specify the SDM template as enterpriseV4:
T2600G-28TS(config)# sdm prefer enterpriseV4
520

45.2

show sdm prefer
Description
The show sdm prefer command is used to display resource allocation of the
current SDM template in use, or the SDM templates that can be used.

Syntax
show sdm prefer { used | default | enterpriseV4 | enterpriseV6 }

Parameter
used —— Display the resource allocation of the template currently in use, and

the template that will become active after a reboot.

default —— Display the resource allocation of the default template.
enterpriseV4 —— Display the resource allocation of the enterpriseV4

template. enterpriseV6 —— Display the resource allocation of the

enterpriseV6 template.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the resource allocation of the template currently in use, and the
template that will become active after a reboot:
T2600G-28TS(config)#show sdm prefer used

521

Chapter 46 AAA Commands
AAA stands for authentication, authorization and accounting. This feature is used to
authenticate users trying to log in to the switch or trying to access the administrative level
privilege.


Applicable Access Application

The authentication can be applied on the following access applications: Console, Telnet, SSH
and HTTP.


Authentication Method List

A method list describes the authentication methods and their sequence to authenticate a user.
The switch supports Login List for users to gain access to the switch, and Enable List for
normal users to gain administrative privileges.


RADIUS/TACACS+ Server

User can configure the RADIUS/TACACS+ servers for the connection between the switch and
the server.


Server Group

User can define the authentication server group with up to several servers running the same
secure protocols, either RADIUS or TACACS+. Users can set these servers in a preferable
order, which is called the server group list. When a user tries to access the switch, the switch
will ask the first server in the server group list for authentication. If no response is received, the
second server will be queried, and so on.

46.1

aaa enable
Description
The aaa enable command is used to enable the AAA function globally. To

disable the AAA function globally, use the no aaa enable command. The

global AAA function is disabled by default.

Syntax
aaa enable
no aaa enable

522

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enable the AAA function globally:
T2600G-28TS(config)# aaa enable

46.2

tacacas-server host
Description
The tacacs-server host command is used to configure a new TACACS+

server. To delete the specified TACACS+ server, use no tacacs-server host

command.

Syntax
tacacs-server host ip-address [ port port-id ] [ timeout time ] [ key { [ 0 ]

string | 7 encryped-string } ]

no tacacs-server host ip-address

Parameter
ip-address —— Specify the IP address of the TACACS+ server.
port-id —— Specify the server’s port number for AAA. By default it is 49.
time —— Specify the time in seconds the switch waits for the server’s

response before it times out. The time ranges from 1 to 9 seconds. The
default is 5 seconds.

[ 0 ] string | 7 encrypted-string —— 0 and 7 are the encryption type. 0

indicates that an unencrypted key will follow. 7 indicates that a symmetric

encrypted key with a fixed length will follow. By default, the encryption type is
0. “string” is the shared key for the switch and the authentication servers to
523

exchange messages which contains 31 characters at most. The question

marks and spaces are not allowed. “encrypted-string” is a symmetric

encrypted key with a fixed length, which you can copy from another switch’s
configuration file. The key or encrypted-key you configured here will be

displayed in the encrypted form. Always configure the key as the last item of
this command.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
The TACACS+ servers you configured are added in the server group “tacacs”
by default.

Example
Configure a TACACS+ server with the IP address as 1.1.1.1, TCP port as 1500,
timeout as 6 seconds, and the unencrypted key string as 12345.

T2600G-28TS(config)# tacacs-server host 1.1.1.1 port 1500 timeout 6 key
12345

46.3

show tacacs-server
Description
This show tacacs-server command is used to display the summary

information of the TACACS+ servers.

Syntax
show tacacs-server

Command Mode
Privileged EXEC Mode and Any Configuration Mode
524

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of all the TACACS+ servers:
T2600G-28TS(config)# show tacacs-server

46.4

radius-server host
Description
The radius-server host command is used to configure a new RADIUS server.

To delete the specified RADIUS server, use no radius-server host command.

Syntax
radius-server host ip-address [ auth-port port-id ] [ acct-port port-id ]

[ timeout time ] [ retransmit number ] [ nas-id nas-id ] [ key { [ 0 ] string | 7

encrypted-string } ]

no radius-server host ip-address

Parameter
ip-address —— Specify the IP address of the RADIUS server.
auth-port port-id —— Specify the UDP destination port for authentication
requests. By default it is 1812.

acct-port port-id —— Specify the UDP destination port for accouting
requests. By deault it is 1813.

time —— Specify the time in seconds the switch waits for the server’s

response before it times out. The time ranges from 1 to 9 seconds. The
default is 5 seconds.

number —— Specify the number of times a RADIUS request is resent to a
server if the server is not responding in time. By default it is 2 times.

nas-id —— Specify the name of the NAS (Network Access Server) to be

contained in RADIUS packets for identification. It ranges from 1 to 31
525

characters. The default value is the MAC address of the switch. Generally, the
NAS indicates the switch itself.

[ 0 ] string | 7 encrypted-string —— 0 and 7 are the encryption type. 0

indicates that an unencrypted key will follow. 7 indicates that a symmetric

encrypted key with a fixed length will follow. By default, the encryption type is
0. “string” is the shared key for the switch and the authentication servers to

exchange messages which contains 31 characters at most. The question

marks and spaces are not allowed. “encrypted-string” is a symmetric
encrypted key with a fixed length, which you can copy from another switch’s
configuration file. The key or encrypted-key you configured here will be

displayed in the encrypted form. Always configure the key as the last item of

this command.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
The RADIUS servers you configured are added in the server group “radius” by
default.

Example
Configure a RADIUS server with the IP address as 1.1.1.1, authentication port
as 1200, timeout as 6 seconds, retransmit times as 3, and the unencrypted

key string as 12345.

T2600G-28TS(config)# radius-server host 1.1.1.1 auth-port 1200 timeout
6 retransmit 3 key 12345

526

46.5

show radius-server
Description
This show radius-server command is used to display the summary

information of the RADIUS servers.

Syntax
show radius-server

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of all the RADIUS servers:
T2600G-28TS(config)# show radius-server

46.6

aaa group
Description
This aaa group command is used to create AAA server groups to group

existing TACACS+/RADIUS servers for authentication. This command puts
the switch in the server group subconfiguration mode.

To delete the corresponding AAA group, use the no aaa group command.

Syntax
aaa group { radius | tacacs } group-name
no aaa group { radius | tacacs } group-name

Parameter
radius | tacacs —— Specify the server group type as RADIUS or TACACS+.
527

group-name —— Specify the server group name.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Create a RADIUS server group with the name radius1:
T2600G-28TS(config)# aaa group radius radius1

46.7

server
Description
This server command is used to add the existing server in the defined server

group. To remove the specified server from the server group, use the no
server command.

Syntax
server ip-address
no server ip-address

Parameter
ip-address —— Specify the server’s IP address.

Command Mode
Server Group Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Create the RADIUS server 1.1.1.1 to RADIUS server group “radius1”:
T2600G-28TS(config)# aaa group radius radius1
528

T2600G-28TS(aaa-group)# server 1.1.1.1

46.8

show aaa group
Description
This show aaa group command is used to display the summary information

of the AAA groups. All the servers in this group will be listed if you specify the
group name.

Syntax
show aaa group [ group-name ]

Parameter
group-name —— Specify the server group name.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of all the server groups:
T2600G-28TS(config)# show aaa group

46.9

aaa authentication login
Description
This aaa authentication login command is used to configure a login
authentication method list. A method list describes the authentication
methods and their sequence to authenticate a user. To delete the specified
authentication method list, use the no aaa authentication login command.

529

Syntax
aaa authentication login { method-list } { method1 } [ method2 ] [ method3 ]
[ method4 ]

no authentication login method-list

Parameter
method-list —— Specify the method list name.
method1, method2, method3, method4 —— Specify the authentication

methods in order. The next authentication method is tried only if the previous
method does not respond, not if it fails.

The preset methods include radius, tacacs, local and none. “radius” means
the RADIUS server group “radius”; “tacacs” means the RACACS+ server

group “tacacs”; “local” means local username database are used; “none”
means no authentication is used for login.

Users can aslo define new method with the aaa group command.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

User Guidelines
By default the login authentication method list is “default” with “local” as

method1.

Example
Configure a login authentication method list “list1” with the priority1 method
as radius and priority2 method as local:

T2600G-28TS(config)# aaa authenticaiton login list1 radius local

530

46.10 aaa authentication enable
Description
This aaa authentication enable command is used to configure a privilege

authentication method list. A method list describes the authentication
methods and their sequence to elevate a user’s privilege. To delete the

specified authentication method list, use the no aaa authentication enable

command.

Syntax
aaa authentication enable { method-list } { method1 } [ method2 ] [ method3 ]
[ method4 ]

no authentication enable method-list

Parameter
method-list —— Specify the method list name.
method1, method2, method3, method4 —— Specify the authentication
methods in order. The next authentication method is tried only if the previous
method does not respond, not if it fails.

The preset methods include radius, tacacs, local and none. “radius” means
the RADIUS server group “radius”; “tacacs” means the RACACS+ server

group “tacacs”; “local” means local username database are used; “none”
means no authentication is used for privilege elevation.

Users can aslo define new method with the aaa group command.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

531

User Guidelines
By default the enable authentication method is “default” with “none” as
method1.

Example
Configure a privilege authentication method list “list2” with the priority1
method as radius and priority2 method as local:

T2600G-28TS(config)# aaa authenticaiton enable list2 radius local

46.11 aaa authentication dot1x default
Description
This aaa authentication dot1x default command is used to configure an
802.1X authentication method list. A method list describes the authentication

methods for users’ login in 802.1X. To delete the default authentication
method list, use the no aaa authentication dot1x default command.

Syntax
aaa authentication dot1x default { method }
no aaa authentication dot1x default

Parameter
method —— Specify the method name. Only RADIUS server group is
supported, and the default method is server group “radius”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the default 802.1X authentication method as “radius1”:
T2600G-28TS(config)# aaa authentication dot1x default radius1
532

46.12 aaa accounting dot1x default
Description
This aaa accounting dot1x default command is used to configure an 802.1X

accounting method list. To delete the default accounting method list, use the

no aaa accounting dot1x default command.

Syntax
aaa accounting dot1x default { method }
no aaa accounting dot1x default

Parameter
method —— Sp+ecify the method name. Only RADIUS server group is
supported, and the default method is server group “radius”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the default 802.1X accounting method as “radius1”:
T2600G-28TS(config)# aaa accounting dot1x default radius1

46.13 show aaa authentication
Description
This show aaa authentication command is used to display the summary
information of the authentication login, enable and dot1x metheod list.

Syntax
show aaa authentication [ login | enable | dot1x ]

533

Parameter
login | enable | dot1x —— Specify the method list type.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of all the authentication method lists:
T2600G-28TS(config)# show aaa authentication

46.14 show aaa accounting
Description
This show aaa accounting command is used to display the summary
information of the accounting metheod list.

Syntax
show aaa accounting [ dot1x ]

Parameter
dot1x —— Specify the method list type.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the information of the default 802.1X accounting method list:
T2600G-28TS(config)# show aaa accounting
534

46.15 line console
Description
The line console command is used to enter the Line Configuration Mode
configure the console port to which you want to apply the authentication list.

Syntax
line console { linenum }

Parameter
linenum —— The number of users allowed to login through console port. Its
value is 0 in general, for the reason that console input is only active on one
console port at a time.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enter the Console port configuration mode and configure the console port 0:
T2600G-28TS(config)#line console 0

46.16 login authentication (console)
Description
The login authentication command is used to apply the login authentication

method list to the console port. To restore to the default authentication
method list, use the no login authentication command.

Syntax
login authentication { method-list }
no login authentication
535

Parameter
method-list —— Specify the login method list on the console port. It is
“default” by default, which contains the method “local”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the login authentication method list on the console port as “list1”:
T2600G-28TS(config)# line console 0
T2600G-28TS(config-line)# login authentication list1

46.17 enable authentication (console)
Description
The enable authentication command is used to apply the privilege

authentication method list to the console port. To restore to the default
authentication method list, use the no enable authentication command.

Syntax
enable authentication { method-list }
no enable authentication

Parameter
method-list —— Specify the enable method list on the console port. It is
“default” by default, which contains the method “none”.

Command Mode
Line Configuration Mode

536

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the enable authentication method list on the console port as “list2”:
T2600G-28TS(config)# line console 0
T2600G-28TS(config-line)# enable authentication list2

46.18 line telnet
Description
The line telnet command is used to enter the Line Configuration Mode to
configure the telnet terminal line to which you want to apply the

authentication list.

Syntax
line telnet

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enter the telnet terminal line configuration mode:
T2600G-28TS(config)#line telnet

537

46.19 login authentication (telnet)
Description
The login authentication command is used to apply the login authentication

method list to the telnet terminal line. To restore to the default authentication
method list, use the no login authentication command.

Syntax
login authentication { method-list }
no login authentication

Parameter
method-list —— Specify the login method list on the telnet terminal line. It is
“default” by default, which contains the method “local”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the login authentication method list on the telnet terminal line as
“list1”:

T2600G-28TS(config)#line telnet
T2600G-28TS(config-line)# login authentication list1

46.20 line ssh
Description
The line ssh command is used to enter the Line Configuration Mode to

configure the ssh terminal line to which you want to apply the authentication
list.

538

Syntax
line ssh

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Enter the ssh terminal line configuration mode:
T2600G-28TS(config)#line ssh

46.21 login authentication (ssh)
Description
The login authentication command is used to apply the login authentication

method list to the ssh terminal line. To restore to the default authentication
method list, use the no login authentication command.

Syntax
login authentication { method-list }
no login authentication

Parameter
method-list —— Specify the login method list on the ssh terminal line. It is
“default” by default, which contains the method “local”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

539

Example
Configure the login authentication method list on the ssh terminal line as
“list1”:

T2600G-28TS(config)# line ssh
T2600G-28TS(config-line)# login authentication list1

46.22 enable authentication (telnet)
Description
The enable authentication command is used to apply the privilege
authentication method list to the telnet terminal line. To restore to the default
authentication method list, use the no enable authentication command.

Syntax
enable authentication { method-list }
no enable authentication

Parameter
method-list —— Specify the enable method list on the telnet terminal line. It is
“default” by default, which contains the method “none”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the enable authentication method list on the telnet terminal line as
“list2”:

T2600G-28TS(config)#line telnet
T2600G-28TS(config-line)# enable authentication list2
540

46.23 enable authentication (ssh)
Description
The enable authentication command is used to apply the privilege
authentication method list to the ssh terminal line. To restore to the default
authentication method list, use the no enable authentication command.

Syntax
enable authentication { method-list }
no enable authentication

Parameter
method-list —— Specify the enable method list on the ssh terminal line. It is
“default” by default, which contains the method “none”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the enable authentication method list on the ssh terminal line as
“list2”:

T2600G-28TS(config)# line ssh
T2600G-28TS(config-line)# enable authentication list2

46.24 ip http login authentication
Description
The ip http login authentication command is used to apply the login

authentication method list to users accessing through HTTP. To restore to

541

the default authentication method list, use the no ip http login
authentication command.

Syntax
ip http login authentication { method-list }
no ip http login authentication

Parameter
method-list —— Specify the login method list on the HTTP access. It is

“default” by default, which contains the method “local”.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the login authentication method list on the HTTP access as “list1”:
T2600G-28TS(config)# ip http login authentication list1

46.25 ip http enable authentication
Description
The ip http enable authentication command is used to apply the privilege

authentication method list to users accessing through HTTP. To restore to
the default authentication method list, use the no ip http enable

authentication command.

Syntax
ip http enable authentication { method-list }
no ip http enable authentication

542

Parameter
method-list —— Specify the enable method list on the HTTP access. It is

“default” by default, which contains the method “none”.

Command Mode
Line Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Configure the enable authentication method list on the HTTP access as
“list2”:

T2600G-28TS(config)# ip http enable authentication list2

46.26 show aaa global
Description
This show aaa global command is used to display global status of AAA

function and the login/enable method lists of different application modules:
console, telnet, ssh and HTTP.

Syntax
show aaa global

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin level users have access to these commands.

Example
Display the AAA function’s global status and each application’s method list:
T2600G-28TS(config)# show aaa global
543

Chapter 47 DHCP Server Commands
DHCP (Dynamic Host Configuration Protocol) is a network configuration protocol for hosts on

TCP/IP networks, and it provides a framework for distributing configuration information to

hosts. DHCP server assigns IP addresses from specified address pools on a switch or router to
DHCP clients and manages them.

47.1

service dhcp server
Description
The service dhcp server command is used to enable DHCP service globally.
To disable DHCP server service, use no service dhcp server command.

Syntax
service dhcp server
no service dhcp server

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP server service globally:
T2600G-28TS(config)# service dhcp server

47.2

ip dhcp server extend-option capwap-ac-ip
Description
The ip dhcp server extend-option capwap-ac-ip command is used to
configure the IP address of the remote DHCP server. To delete the remote
DHCP server’s IP address, use no ip dhcp server extend-option
capwap-ac-ip command.
544

Syntax
ip dhcp server extend-option capwap-ac-ip ip-address
no ip dhcp server extend-option capwap-ac-ip

Parameter
ip-address —— Specify the IP address of the remote server.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the remote DHCP server’s IP address as 192.168.3.1:
T2600G-28TS(config)# ip dhcp server extend-option capwap-ac-ip
192.168.3.1

47.3

ip dhcp server extend-option vendor-class-id
Description
The ip dhcp server extend-option vendor-class-id command is used to
configure the class ID of the packets from DHCP server in a different network
segment. To delete the class ID settings, use no ip dhcp server
extend-option vendor-class-id command.

Syntax
ip dhcp server extend-option vendor-class-id class-id
no ip dhcp server extend-option vendor-class-id

Parameter
class-id —— Specify the class ID of the DHCP packets from another network
segment.

545

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the class ID of the DHCP packets from another network segment as 34:
T2600G-28TS(config)# ip dhcp server extend-option vendor-class-id 34

47.4

ip dhcp server exclude-address
Description
The ip dhcp server exclude-address command is used to specify the
reserved IP addresses which are forbidden to allocate, such as the gateway
address, the network segment broadcast address, the server address etc. To
delete the reserved IP addresses, use no ip dhcp server exclude-address
command.

Syntax
ip dhcp server exclude-address start-ip-address end-ip-address
no ip dhcp server exclude-address start-ip-addr end-ip-address

Parameter
start-ip-address —— Specify the start IP address of the reserved IP pool.
end-ip-address —— Specify the end IP address of the reserved IP pool. Only

one IP address will be reserved if the end IP address and the start IP address
are the same.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
546

Example
Set the reserved IP addresses from 192.168.1.1 to 192.168.1.9:
T2600G-28TS(config)# ip dhcp server exclude-address 192.168.1.1
192.168.1.9

47.5

ip dhcp server pool
Description
The ip dhcp server pool command is used to create the address pool of
DHCP Server and enter the dhcp configuration mode. To delete the address
pool, use no ip dhcp server pool command.

Syntax
ip dhcp server pool pool-name
no ip dhcp server pool pool-name

Parameter
pool-name —— Specify the address pool name, ranging from 1 to 8

characters.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Create the address pool of name POOL1:
T2600G-28TS(config)# ip dhcp server pool POOL1

547

47.6

ip dhcp server ping timeout
Description
The ip dhcp server ping timeout command is used to specify the timeout of
PING process. To resume the default value, use no ip dhcp server ping
timeout command.

Syntax
ip dhcp server ping timeout value
no ip dhcp server ping timeout

Parameter
value —— Specify the timeout value, ranging from 100 to 10000ms. The
default value is 100ms.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Set the timeout of PING as 200ms:
T2600G-28TS(config)# ip dhcp server ping timeout 200

47.7

ip dhcp server ping packets
Description
The ip dhcp server ping packets command is used to specify the number of
PING packets sent. If this value is set to 0, the PING process will be disabled.
To resume the default value, use no ip dhcp server ping packets command.

Syntax
ip dhcp server ping packets num

548

Parameter
num —— Specify the PING packets’ number, ranging from 0 to 10. By default

it’s 1.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the PING packets’ number as 2:
T2600G-28TS(config)# ip dhcp server ping packets 2

47.8

network
Description
The network command is used to specify the address and subnet of the
network pool.

Syntax
network network-address subnet-mask

Parameter
network-address —— Specify the network address of the pool, with the

format A.B.C.D. All the IP addresses in the same subnet are allocatable except
the reserved addresses and specific addresses.

subnet-mask —— Specify the subnet mask of the pool, with the format

A.B.C.D.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
549

Example
Specify the address pool “product” as 192.168.1.0 255.255.255.0:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# network 192.168.1.0 255.255.255.0

47.9

lease
Description
The lease command is used to specify the lease time of the address pool.

Syntax
lease lease-time

Parameter
lease-time —— Specify the lease time of the pool, ranging from 1 to 2880

minutes. The default value is 120 minutes.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the lease time of address pool “product” as 10 minutes:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# lease 10

47.10 address hardware-address
Description
The address hardware-address command is used to reserve the static
address bound with hardware address in the address pool. To delete the
binding, use no address hardware-address.
550

Syntax
address ip-address hardware-address hardware-address hardware-type
{ ethernet | ieee802 }
no address ip-address

Parameter
ip-address —— Specify the static binding IP address.
hardware-address —— Specify the hardware address, in the format
XX:XX:XX:XX:XX:XX.

ethernet | ieee802 —— Specify the hardware type.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Reserve the IP address 192.168.0.10 in the address pool “product” for the
device with the MAC address as 5e:4c:a6:31:24:01 and the hardware type as
ethernet:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# address 192.168.0.10 hardware-address
5e:4c:a6:31:24:01 hardware-type ethernet

47.11 address client-identifier
Description
The address client-identifier command is used to specify the static address
bound with client ID in the address pool. To delete the binding, use no
address command.

Syntax
address ip-address client-identifier client-id [ascii]
551

no address ip-address

Parameter
ip-address —— Specify the static binding IP address.
client-id —— Specify the client ID, in the format of hex value.
ascii —— The client ID is entered with ascii characters.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Reserve the IP address 192.168.0.10 in the address pool “product” for the
device with the client ID as abc in ascii:
T2600G-28TS(config)# ip dhcp pool product
T2600G-28TS(dhcp-config)# address 192.168.0.10 client-identifier abc
ascii

47.12 default-gateway
Description
The default-gateway command is used to specify the default gateway of the
address pool. To delete the configuration, use no default-gateway.

Syntax
default-gateway gateway-list
no default-gateway

Parameter
gateway-list —— Specify the gateway list, with the format of A.B.C.D,E.F.G.H.
At most 8 gateways can be configured, separated by comma.

552

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the address pool product’s default gateways as 192.168.0.1 and
192.168.1.1:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(dhcp-config)# default-gateway 192.168.0.1,192.168.1.1

47.13 dns-server
Description
The dns-server command is used to specify the DNS server of the address
pool. To delete this configuration, use no dns-server command.

Syntax
dns-server dns-list
no dns-server

Parameter
dns-list —— Specify the DNS server list, with the format of A.B.C.D,E.F.G.H. At
most 8 DNS servers can be configured, separated by comma.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the address pool’s DNS servers as 192.168.0.1 and 192.168.1.1:
553

T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# dns-server 192.168.0.1,192.168.1.1

47.14 netbios-name-server
Description
The netbios-name-server command is used to specify the Netbios server’s
IP address. To delete the Netbios servers, use no netbios-name-server
command.

Syntax
netbios-name-server NBNS-list
no netbios-name-server

Parameter
NBNS-list —— Specify the Netbios server list, with the format of

A.B.C.D,E.F.G.H. At most 8 Netbios servers can be configured, separated by
comma.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the address pool’s Netbios servers as 192.168.0.1 and 192.168.1.1:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# netbios-name-server 192.168.0.1,192.168.1.1

554

47.15 netbios-node-type
Description
The netbios-node-type command is used to specify the Netbios server’s
node type. To delete the node type setttings, use no netbios-node-type
command.

Syntax
netbios-node-type type
no netbios-node-type

Parameter
type —— Specify the node type as b-node, h-node, m-node or p-node.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the address pool’s Netbios server type as b-node:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# netbios-node-type b-node

47.16 next-server
Description
The next-server command is used to specify the next DHCP server’s
address during the DHCP boot process. To delete the next server, use no
next-server command.

Syntax
next-server ip-address
555

next-server

Parameter
ip-address —— Specify the IP address of the next server.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the next server’s IP address as 192.168.2.1:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# next-server 192.168.2.1

47.17 domain-name
Description
The domain-name command is used to specify the domain name for the
DHCP client. To delete the domain name, use no domain-name command.

Syntax
domain-name domainname
no domain-name

Parameter
domainname —— Specify the domain name for the DHCP client.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
556

Example
Specify the DHCP client’s domain name as edu:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# domain-name edu

47.18 bootfile
Description
The bootfilecommand is used to specify the name of the DHCP client’s
bootfile. To delete the bootfile, use no bootfile command.

Syntax
bootfile file-name
no bootfile

Parameter
file-name —— Specify the name of the DHCP client’s bootfile.

Command Mode
DHCP Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the name of the DHCP client’s bootfile as boot1:
T2600G-28TS(config)# ip dhcp server pool product
T2600G-28TS(config-dhcp)# bootfile boot1

557

47.19 show ip dhcp server status
Description
The show ip dhcp server status command is used to display the status of
the DHCP service.

Syntax
show ip dhcp server status

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the status of DHCP service:
T2600G-28TS(config)# show ip dhcp server status

47.20 show ip dhcp server statistics
Description
The show ip dhcp server statistics command is used to display the DHCP
packets received and sent by DHCP server.

Syntax
show ip dhcp server statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the statistics of DHCP packets received and sent by the DHCP server:
558

T2600G-28TS(config)# show ip dhcp server statistics

47.21 show ip dhcp server extend-option
Description
The show ip dhcp server extend-option command is used to display the
configuration of the remote DCHP servers.

Syntax
show ip dhcp server extend-option

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configurations of the remote DCHP servers:
T2600G-28TS(config)# show ip dhcp server extend-option

47.22 show ip dhcp server pool
Description
The show ip dhcp server pool command is used to display the configuration
of the address pool.

Syntax
show ip dhcp server pool

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
559

Example
Display the configured address pool:
T2600G-28TS(config)# show ip dhcp server pool

47.23 show ip dhcp server excluded-address
Description
The show ip dhcp server excluded-address command is used to display the
configuration of reserved addresses.

Syntax
show ip dhcp server excluded-address

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configured reserved addresses:
T2600G-28TS(config)# show ip dhcp server excluded-address

47.24 show ip dhcp server manual-binding
Description
The show ip dhcp server manual-binding command is used to display the
configuration of static binding address.

Syntax
show ip dhcp server manual-binding

Command Mode
Privileged EXEC Mode and Any Configuration Mode

560

Privilege Requirement
None.

Example
Display the configured static binding address:
T2600G-28TS(config)# show ip dhcp server manual-binding

47.25 show ip dhcp server binding
Description
The show ip dhcp server binding command is used to display the binding
entries.

Syntax
show ip dhcp server binding [ ip ip-address ]

Parameter
ip-address —— Specify the binding IP address.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the address binding entries:
T2600G-28TS(config)# show ip dhcp server binding

47.26 clear ip dhcp server statistics
Description
The clear ip dhcp server statistics command is used to clear the statistics
information of DHCP packets.

561

Syntax
clear ip dhcp server statistics

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear the packet statistics:
T2600G-28TS(config)# clear ip dhcp server statistics

47.27 clear ip dhcp server binding
Description
The clear ip dhcp server binding command is used to clear the binding
information.

Syntax
clear ip dhcp server binding [ ip-address ]

Parameter
ip-address —— Specify the binding IP address.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Clear all the binding addresses:
T2600G-28TS(config)# clear ip dhcp server binding
562

Chapter 48 DHCP Server Filter Commands
Note: Only T2600G-28TS and T2600G-28MPS support DHCP Server Filter.

48.1

ip dhcp filter (global)
Description
The ip dhcp filter command is used to enable DHCP Server Filter function
globally. To disable the DHCP Server Filter function globally, use no ip dhcp
filter command.

Syntax
ip dhcp filter
no ip dhcp filter

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP Server Filter function globally:
T2600G-28TS(config)# ip dhcp filter

48.2

ip dhcp filter (interface)
Description
The ip dhcp filter command is used to enable DHCP Server Filter function for
a specified interface. To disable the DHCP Server Filter function for a
specified interface, use no ip dhcp filter command.

563

Syntax
ip dhcp filter
no ip dhcp filter

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP Server Filter function on port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip dhcp filter

48.3

ip dhcp filter server permit-entry
Description
The ip dhcp filter server permit-entry command is used to add a dhcp
server permit entry. To delete a DHCP server permit entry, use no ip dhcp
filter server permit-entry command.

Syntax
ip dhcp filter server permit-entry server-ip ipAddr client-mac macAddr

interface { gigabitEthernet port-list | port-channel port-channel-id }

no ip dhcp filter server permit-entry server-ip ipAddr client-mac macAddr
interface { gigabitEthernet port-list | port-channel port-channel-id }

Parameter
ipAddr —— DHCP Server IP address.

macAddr ——DHCP Client MAC address, the value “all” specify all client mac
address.

port-list —— The list of Ethernet ports.
564

port-channel-id —— The ID of the port channels

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add a dhcp server permit entry. In this entry, the server IP is 192.168.1.1, the
client –mac is aa:aa:aa:aa:aa:aa, and the port is 1/0/2:
T2600G-28TS(config)# ip dhcp filter server permit-entry server-ip
192.168.1.1 client-mac aa:aa:aa:aa:aa:aa interface gigabitEthernet 1/0/2

48.4

show ip dhcp filter
Description
The show ip dhcp filter command is used to display the DHCP Filter global
configuration.

Syntax
show ip dhcp filter

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DHCP Filter global configuration:
T2600G-28TS(config)# show ip dhcp filter

565

48.5

show ip dhcp filter interface
Description
The show ip dhcp filter interface command is used to display the DHCP

Filter configuration of a desired Gigabit Ethernet port/port channel or of all
Ethernet ports/port channels.

Syntax
show ip dhcp filter interface [ gigabitEthernet port | port-channel

port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the ip dhcp filter configuration on port 1/0/2:
T2600G-28TS(config)# show ip dhcp filter interface gigabitEthernet 1/0/2

48.6

show ip dhcp filter server permit-entry
Description
The show ip dhcp filter server permit-entry command is used to display the

DHCP Filter Server permit entries configuration.

Syntax
show ip dhcp filter server permit-entry

566

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the DHCP Filter server permit entries configuration:
T2600G-28TS(config)# show ip dhcp filter server permit-entry

567

Chapter 49 DHCP Relay Commands
A DHCP Relay is a Layer 3 device that forwards DHCP packets between clients and servers.

DHCP Relay forward requests and replies between clients and servers when they are not on the
same physical subnet.

49.1

service dhcp relay
Description
The service dhcp relay command is used to enable DHCP Relay function
globally. To disable DHCP Relay function, use no service dhcp relay
command.

Syntax
service dhcp relay
no service dhcp relay

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP Relay function globally:
T2600G-28TS(config)# service dhcp relay

49.2

ip dhcp relay enable

Note: Only T2600G-28TS and T2600G-28MPS support this command.

568

Description
The ip dhcp relay enable command is used to enable DHCP Relay fuction on
specified interface. To disable DHCP Relay function on specified intrerface,
use no ip dhcp relay enable command.

Syntax
ip dhcp relay enable
no ip dhcp relay enable

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable dhcp relay function on port 1/0/1:
T2600G-28TS(config)# interface gigabitEthernet 1/0/1
T2600G-28TS(config-if)# ip dhcp relay enable

49.3

ip helper-address
Description
The ip helper-address command is used to add DHCP Server address to the
Layer 3 interface. To delete the server address, use no ip helper-address
command.

Syntax
ip helper-address ip-address
no ip helper-address [ ip-address ]

Parameter
ip-address —— DHCP Server address.
569

Command Mode
Interface Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add DHCP Server address 192.168.2.1 to interface VLAN 1:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ip helper-address 192.168.2.1

49.4

ip dhcp relay information
Description
The ip dhcp relay information command is used to enable option 82 support
in DHCP Relay. To disable this function, use no ip dhcp relay information
command.

Syntax
ip dhcp relay information
no ip dhcp relay information

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable option 82 support in DHCP Relay:
T2600G-28TS(config)# ip dhcp relay information

570

49.5

ip dhcp relay information policy
Description
The ip dhcp relay information policy command is used to specify the
operation for the Option 82 field of the DHCP request packets from the Host.
To restore to the default option, use no ip dhcp relay information policy
command.

Syntax
ip dhcp relay information policy { drop | keep | replace }
no ip dhcp relay information policy

Parameter
drop | keep | replace ——The operations for Option 82 field of the DHCP
request packets from the Host. The default operation is keep.
drop: Discard the packet with the Option 82 field.
keep: Keep the Option 82 field in the packet.
replace: Replace the option 82 field with the system option defined by the
switch.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the option 82 policy as replace to replace the Option 82 field with the
local parameter on receiving the DHCP request packet:
T2600G-28TS(config)# ip dhcp relay information policy replace

571

49.6

ip dhcp relay information format
Description
The ip dhcp relay information format command is used to select the format

of option 82 sub-option value field. To restore to the default option, use no ip

dhcp relay information format command.

Syntax
ip dhcp relay information format { normal | private }
no ip dhcp relay information format

Parameter
normal | private —— The format type of option 82 sub-option value field.
normal: Indicates that the format of sub-option value field is TLV

(type-length-value).

private: Indicates that the format of sub-option value field is the value you

configure for the related sub-option.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Select the format of option 82 sub-option value field as TLV
(type-length-value):

T2600G-28TS(config)#ip dhcp relay information format normal

572

49.7

ip dhcp relay information custom
Description
The ip dhcp relay information custom command is used to enable the
switch to customize the option 82 field. To disable this function, use no ip
dhcp relay information custom command.

Syntax
ip dhcp relay information custom
no ip dhcp relay information custom

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable the switch to customize the option 82 field:
T2600G-28TS(config)# ip dhcp relay information custom

49.8

ip dhcp relay information circuit-id
Description
The ip dhcp relay information circuit-id command is used to specify the
custom circuit ID when option 82 customization is enabled. To clear the
circuit ID, use no ip dhcp relay information circuit-id command.

Syntax
ip dhcp relay information circuit-id circuitID
no ip dhcp relay information circuit-id

Parameter
circuitID —— Specify the circuit ID, ranging from 1 to 64 characters.
573

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the circuit ID as “TP-Link”:
T2600G-28TS(config)# ip dhcp relay information circuit-id TP-Link

49.9

ip dhcp relay information remote-id
Description
The ip dhcp relay information remote-id command is used to specify the
custom remote ID when option 82 customization is enabled. To clear the
remote ID, use no ip dhcp relay information remote-id command.

Syntax
ip dhcp relay information remote-id remoteID
no ip dhcp relay information remote-id

Parameter
remoteID —— Specify the remote ID, ranging from 1 to 64 characters.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the remote ID as “TP-Link”:
T2600G-28TS(config)# ip dhcp relay information remote-id TP-Link
574

49.10 ip dhcp relay default-interface
Description
The ip dhcp relay default-interface command is used to configure default
relay agent interface. When the switch works at DHCP VLAN Relay mode and
there is no IP interface in the VLAN, the switch uses the IP of default relay
agent interface to fill in the relay agent IP address field of DHCP packets. To
delete the default relay agent interface use no ip dhcp relay
default-interface.

Syntax
ip dhcp relay default-interface
no ip dhcp relay default-interface

Command mode
Interface Configuration Mode
Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
Example
Configure interface VLAN 1 as the default relay agent interface:
T2600G-28TS(config)# interface vlan 1
T2600G-28TS(config-if)# ip dhcp relay default-interface

49.11 ip dhcp relay vlan
Description
The ip dhcp relay vlan command is used to add DHCP server address to
specified VLAN. If there is an IP interface in the VLAN and it has configured a
DHCP server address at the interface level, then the configuration at the
interface level has higher priority. In this case, the DHCP server configured on
the VLAN will not be used to forward the DHCP packets. To delete the DHCP
server address use no ip dhcp relay vlan.

575

Syntax
ip dhcp relay vlan vid helper-address ip-address
no ip dhcp relay vlan vid helper-address [ ip-address ]

Parameter
vid —— VLAN ID.
ip-address —— DHCP Server address.

Command mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Add DHCP server address 192.168.2.1 to VLAN 1:
T2600G-28TS(config)# ip dhcp relay vlan 1 helper-address 192.168.2.1

49.12 show ip dhcp relay
Description
The show ip dhcp relay command is used to display the global status and
Option 82 configuration of DHCP Relay.

Syntax
show ip dhcp relay

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of DHCP Relay:
576

T2600G-28TS(config)# show ip dhcp relay

49.13 show ip dhcp relay interface
Note: Only T2600G-28TS and T2600G-28MPS support this command.

Description
The show ip dhcp relay interface command is used to display the DHCP
Relay configuration of a desired Gigabit Ethernet port/port channel or of all
Ethernet ports/port channels.

Syntax
show ip dhcp relay interface [gigabitEthernet port | port-channel
port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id ——The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of DHCP Relay on port 1/0/2:
T2600G-28TS(config)# show ip dhcp relay interface gigabitEthernet 1/0/2

577

Chapter 50 DHCP L2 Relay Commands
Note: Only T2600G-28TS and T2600G-28MPS support DHCP L2 Relay.

50.1

ip dhcp l2relay
Description
The ip dhcp l2relay command is used to enable DHCP L2 Relay function
globally. To disable DHCP L2 Relay function, use no ip dhcp l2relay
command.

Syntax
ip dhcp l2relay

no ip dhcp l2relay

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP L2 Relay function globally:
T2600G-28TS(config)# ip dhcp l2relay

50.2

ip dhcp l2relay vlan
Description
The ip dhcp l2relay vlan command is used to enable DHCP L2 relay in the
specified VLAN. To disable DHCP L2 Relay in the specific vlan, use no ip dhcp
l2relay vlan command.

Syntax

ip dhcp l2relay vlan vlan-range

no ip dhcp l2relay vlan vlan-range
578

Parameter

vlan-range —— Specify the vlan to be enabled with DHCP L2 relay.

Command Mode
Global Configuration Mode

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable DHCP L2 Relay for VLAN 2:
T2600G-28TS(config)# ip dhcp l2relay vlan 2

50.3

ip dhcp l2relay information option

Note: Only T2600G-28TS and T2600G-28MPS support this command. To enable the

option 82 function on a specified port/port channel for T2600G-18TS and T2600G-52TS, refer
to 15.4 ip dhcp snooping information option.

Description
The ip dhcp l2relay information option command is used to enable the
option 82 function in DHCP l2relay on a specified port/port channel. To
disable this function, use no ip dhcp l2relay information option command.

Syntax
ip dhcp l2relay information option

no ip dhcp l2relay information option

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable option 82 support in DHCP l2relay for port 1/0/2:
579

T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip dhcp l2relay information option

50.4

ip dhcp l2relay information strategy

Note: Only T2600G-28TS and T2600G-28MPS support this command. To specify the

operation for the Option 82 field of the DHCP request packets from the host on a specified

port/port channel for T2600G-18TS and T2600G-52TS, refer to 15.5 ip dhcp snooping
information strategy.

Description
The ip dhcp l2relay information strategy command is used to specify the
operation for the Option 82 field of the DHCP request packets from the host
on a specified port/port channel. To restore to the default option, use no ip
dhcp l2relay information strategy command.

Syntax
ip dhcp l2relay information strategy { drop | keep | replace }

no ip dhcp l2relay information strategy

Parameter
drop | keep | replace ——The operations for Option 82 field of the DHCP
request packets from the Host. The default operation is keep.
drop: Discard the packet with the Option 82 field.
keep: Keep the Option 82 field in the packet.

replace: Replace the option 82 field with the system option defined by the
switch.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

580

Example
Specify the option 82 strategy as replace to replace the Option 82 field with
the local parameter on receiving the DHCP request packet for port 2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip dhcp l2relay information strategy replace

50.5

ip dhcp l2relay information format

Note: Only T2600G-28TS and T2600G-28MPS support this command. To select the

format of option 82 sub-option value field on a specified port/port channel for T2600G-18TS
and T2600G-52TS, refer to 15.6 ip dhcp snooping information format.

Description
The ip dhcp l2relay information format command is used to select the

format of option 82 sub-option value field on a specified port/port channel.
To restore to the default option, use no ip dhcp l2relay information format

command.

Syntax
ip dhcp l2relay information format { normal | private }
no ip dhcp l2relay information format

Parameter
normal | private —— The format type of option 82 sub-option value field.
normal: Indicates that the format of sub-option value field is TLV

(type-length-value).

private: Indicates that the format of sub-option value field is the value you

configure for the related sub-option.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.
581

Example
Select the format of option 82 sub-option value field as TLV
(type-length-value) for port 2:

T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)#ip dhcp l2relay information format normal

50.6

ip dhcp l2relay information circuit-id

Note: Only T2600G-28TS and T2600G-28MPS support this command. To specify the

customized Circuit ID for the Option 82 on a specified port/port channel for T2600G-18TS and
T2600G-52TS, refer to 15.7 ip dhcp snooping information circuit-id.

Description
The ip dhcp l2relay information circuit-id command is used to specify the
customized Circuit ID for the Option 82 on a specified port/port channel. To
clear the Circuit ID, use no ip dhcp l2relay information circuit-id command.

Syntax

ip dhcp l2relay information circuit-id circuitID

no ip dhcp l2relay information circuit-id

Parameter

circuitID —— Specify the circuit ID, ranging from 1 to 64 characters.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the circuit ID as “TP-Link” for port 2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip dhcp l2relay information circuit-id TP-Link
582

50.7

ip dhcp l2relay information remote-id

Note: Only T2600G-28TS and T2600G-28MPS support this command. To specify the

customized Remote ID for Option 82 on a specified port/port channel for T2600G-18TS and
T2600G-52TS, refer to 15.8 ip dhcp snooping information remote-id.

Description
The ip dhcp l2relay information remote-id command is used to specify the
customized Remote ID for Option 82 on a specified port/port channel. To
clear the Remote ID, use no ip dhcp l2relay information remote-id
command.

Syntax

ip dhcp l2relay information remote-id remoteID

no ip dhcp l2relay information remote-id

Parameter

remoteID —— Specify the remote ID, ranging from 1 to 64 characters.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Specify the remote ID as “TP-Link” for port 2:
T2600G-28TS(config)#interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# ip dhcp l2relay information remote-id TP-Link

50.8

show ip dhcp l2relay
Description
The show ip dhcp l2relay command is used to display the global status of
DHCP l2relay.
583

Syntax
show ip dhcp l2relay

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of DHCP l2relay:e
T2600G-28TS(config)# show ip dhcp l2relay

50.9

show ip dhcp l2relay interface

Note: Only T2600G-28TS and T2600G-28MPS support this command. To display the

DHCP snooping option 82 configuration of a desired port/port channel or of all ports/port
channels, refer to 15.17 show ip dhcp snooping information interface.

Description
The show ip dhcp l2relay interface command is used to display the DHCP
l2relay configuration of a desired port/port channel or of all ports/port
channels.

Syntax
show ip dhcp l2relay interface [gigabitEthernet port | port-channel
port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id ——The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.
584

Example
Display the configuration of DHCP l2Relay on port 1/0/2:
T2600G-28TS(config)# show ip dhcp l2relay interface gigabitEthernet
1/0/2

585

Chapter 51 NetBIOS Filter Commands
Note: Only T2600G-28TS and T2600G-28MPS support NetBIOS Filter.

51.1

netbios filter
Description
The netbios filter command is used to enable netbios filter function on the
specified interface. To disable netbios filter function on the specified
interface, use no netbios filter command.

Syntax
netbios filter
no netbios filter

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet / interface port-channel / interface range port-channel)

Privilege Requirement
Only Admin, Operator and Power User level users have access to these
commands.

Example
Enable netbios filter function on port 1/0/2:
T2600G-28TS(config)# interface gigabitEthernet 1/0/2
T2600G-28TS(config-if)# netbios filter

586

51.2

show netbios filter
Description
The show netbios filter command is used to display the NetBIOS Filter
configuration of a desired Gigabit Ethernet port/port channel or of all
Ethernet ports/port channels.

Syntax
show netbios filter [interface gigabitEthernet port | interface port-channel

port-channel-id ]

Parameters
port —— The Ethernet port number.
port-channel-id —— The ID of the port channel.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the NetBIOS Filter configuration on port 1/0/2:
T2600G-28TS(config)# show netbios filter interface gigabitEthernet 1/0/2

587

Chapter 52 PoE Commands
Note: Only T2600G-28MPS supports PoE.
PoE (Power over Ethernet) technology describes a system to transmit electrical power along
with data to remote devices over standard twisted-pair cable in an Ethernet network. It is

especially useful for supplying power to IP telephones, wireless LAN access points, cameras
and so on.

52.1

power inline consumption (global)
Description
The power inline consumption command is used to configure the max
power the PoE switch can supply globally.

Syntax
power inline consumption power-limit

Parameter
power-limit ——The max power the PoE switch can supply, ranging from 1 to
384w. By default, the value is 384.

Command Mode
Global Configuration Mode

Privilege Requirement
None.

Example
Configure the max power the PoE switch can supply as 160w:
T2600G-28MPS(config)# power inline consumption 160

588

52.2

power inline disconnect-method
Description
The power inline disconnect-method command is used to offset the power

limit being exceeded and keep the switch system using power at a usable
level.

Syntax
power inline disconnect-method {deny-next-port|deny-low-priority}

Parameter
deny-next-port —— When the supply power exceeds the power limit, the PD
linked to the next port will be disconnected.

deny-low priority —— When the supply power exceeds the power limit, the
PD linked to the port with lower priority will be disconnected.

Command Mode
Global Configuration Mode

Privilege Requirement
None.

Example
Configure the power disconnect method as deny-next-port:
T2600G-28MPS(config)# power inline disconnect-method deny-next-port

52.3

power profile
Description
The power profile command is used to create a PoE profile for the switch. To

delete the configured PoE profile configuration, use no power profile

command. PoE Profile is a short cut for the configuration of the PoE port. In a

PoE profile, the PoE status, PoE priority and power limit are configured. You
can specify a PoE profile for each PoE port individually.
589

Syntax
power profile name [supply {enable | disable} [priority {low | middle | high}

[consumption { power-limit | auto | class1 | class2 | class3 | class4 } ] ] ]
no power profile name

Parameter
name —— The PoE profile name, ranging from 1 to 16 characters. If the name
being assigned contains spaces then put it inside double quotes.

supply —— The PoE status of the port in the profile. By default, the PoE
status is “enable”.

priority —— The PoE priority of the port in the profile. The priority levels

include “high”, “middle” and “low” in descending order. When the supply

power exceeds the system power limit, the PD linked to the port with lower
priority will be disconnected. By default, the PoE priority is “low”.

consumption —— The max power the port in the profile can supply, with five

options: “power-limit”, “auto”, ”class1”, “class2”, “class3” and “class4”.

“Power-limit” indicates you can manually enter a value ranging from 1 to 300.
The value is in the unit of 0.1 watt. For instance, if you want to configure the

max power as 5w, you should enter 50. “Auto” indicates the value is assigned

automatically by the PoE switch. “Class1” represents 4w. “Class2” represents
7w. “Class3” represents 15.4w. “Class4” represents 30w.

Command Mode
Global Configuration Mode

Privilege Requirement
None.

Example
Create a PoE profile named “IP Camera” whose PoE status is “enable”, PoE
priority is “low” and the power limit is “5w”:

T2600G-28MPS(config)# power profile
priority low consumption 50
590

“IP Camera” supply enable

52.4

power time-range
Description
The power time-range command is used to create PoE time-range for the

switch and enter Power Time-range Create Configuration Mode. After a PoE
time-range is created, you need to specify the date and time which has three
mode options available: absolute, periodic and holiday. A PoE time-range can

implement multiple time-ranges simultaneously as long as they do not

conflict with each other. To delete the corresponding PoE time-range

configuration, use no power time-range command. The PoE time-range

determines the power supply time of the switch. You can specify a PoE
time-range for each PoE port individually.

Syntax
power time-range name
no power time-range name

Parameter
name —— The PoE time-range name, ranging from 1 to 16 characters.

Command Mode
Global Configuration Mode

Privilege Requirement
None.

Example
Create a PoE time-range named “tRange1” for the switch:
T2600G-28MPS(config)# power time-range tRange1

591

52.5

power holiday
Description
The power holiday command is used to create PoE holiday for the switch. To

delete the corresponding PoE holiday configuration, use no power holiday

command.

Syntax
power holiday name start-date start-date end-date end-date
no power holiday name

Parameter
name —— The PoE holiday name, ranging from 1 to 16 characters.
start-date —— The start date of the PoE holiday, in the format of MM/DD, for
instance, 05/01.

end-date ——The end date of the PoE holiday, in the format of MM/DD, for
instance, 05/01.

Command Mode
Global Configuration Mode

Privilege Requirement
None.

Example
Create a PoE holiday named “National Day”, and configure the start date as
October 1st and the end date as October 3rd:

T2600G-28MPS(config)# power holiday NationalDay start-date 10/01
end-date 10/03

592

52.6

absolute
Description
The absolute command is used to create an absolute mode time-range for
the PoE time-range of the switch. The switch will supply power when the

specified absolute time occurs. To delete the corresponding absolute mode
time-range configuration, use no absolute command.

Syntax
absolute start start-date end end-date
no absolute

Parameter
start-date —— The start date in Absoluteness Mode, in the format of
MM/DD/YYYY.

end-date —— The end date in Absoluteness Mode, in the format of
MM/DD/YYYY.

Command Mode
Power Time-range Create Configuration Mode

Privilege Requirement
None.

Example
Create an absolute mode time-range for the PoE of the switch and specify
the date extending from May 5, 2012 through Oct. 5, 2012:
T2600G-28MPS(config)# power time-range tRange1
T2600G-28MPS(config-pwr-time-range)# absolute start 05/05/2012 end
10/05/2012

593

52.7

periodic
Description
The periodic command is used to create a periodic mode time-range for the

PoE time-range of the switch. The switch will supply power when the
specified periodic time occurs. To delete the corresponding periodic mode
time-range configuration, use no periodic command.

Syntax
periodic { [ week-date week-day ] [ time-slice1 time-slice ] [ time-slice2

time-slice ] [ time-slice3 time-slice ] [ time-slice4 time-slice ] }
no periodic [ week-date | time-slice ]

Parameter
week-day —— Periodic Mode, with “1-7”, “daily”, “off-day” and “working-day”

options. “1-7” should be entered in the format of 1-3, 7 which represent

Monday, Tuesday, Wednesday and Sunday. “Daily” represents every day.
“Off-day” represents weekend. “Working-day” represents working day.

time-slice —— Create time-slice, in the format of HH:MM-HH:MM.

Command Mode
Power Time-range Create Configuration Mode

Privilege Requirement
None.

Example
Configure the PoE time-range named “tRange2” as a periodic time-range and
specify the date and time as 8:30 to 12:00 on weekends:
T2600G-28MPS(config)# power time-range tRange2
T2600G-28MPS(config-pwr-time-range)# periodic week-date off-day
time-slice1 08:30-12:00

594

52.8

holiday
Description
The holiday command is used to create holiday mode time-range for the PoE
time-range of the switch. When the PoE holiday which is excluded from PoE
time-range occurs, the switch will not supply power.

Syntax
holiday { exclude | include }

Parameter
exclude —— Indicates the PoE time-range of the switch excluding the PoE
holiday. When PoE holiday occurs, the switch will not supply power.

include —— Indicates the PoE time-range of the switch including the PoE
holiday. It is the default option. When PoE holiday occurs, the switch will
supply power.

Command Mode
Power Time-range Create Configuration Mode

Privilege Requirement
None.

Example
Create a holiday mode time-range for the PoE time-range named “tRange3”

and configure PoE time-range of the switch excludes the PoE holiday:
T2600G-28MPS(config)# power time-range tRange3
T2600G-28MPS(config-pwr-time-range)# holiday exclude

52.9

power inline consumption (interface)
Description
The power inline consumption command is used to configure the power limit
595

the corresponding port can supply.

Syntax
power inline consumption { power-limit | auto | class1 | class2 | class3 |

class4 }

Parameter
power-limit —— The max power the port in the profile can supply, with five
options: “power-limit”, “auto”, ”class1”, “class2”, “class3” and “class4”.

“Power-limit” indicates you can manually enter a value ranging from 1 to 300.
The value is in the unit of 0.1 watt. For instance, if you want to configure the

max power as 5w, you should enter 50. “Auto” indicates the value is assigned
automatically by the PoE switch. “Class1” represents 4w. “Class2” represents

7w. “Class3” represents 15.4w. “Class4” represents 30w.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
None.

Example
Configure the power limit as “5w” for port 2:
T2600G-28MPS(config)# interface gigabitEthernet 1/0/2
T2600G-28MPS(config-if)# power inline consumption 50

52.10 power inline priority
Description
The power inline priority command is used to configure the PoE priority for

the corresponding port

Syntax
596

power inline priority { low | middle | high }

Parameter
priority —— The PoE priority of the port. The priority levels include “high”,

“middle” and “low” in descending order. When the supply power exceeds the

system power limit, the PD linked to the port with lower priority will be
disconnected. By default, the priority level is “low”.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
None.

Example
Configure the PoE priority as “low” for port 2:
T2600G-28MPS(config)# interface gigabitEthernet 1/0/2
T2600G-28MPS(config-if)# power inline priority low

52.11 power inline supply
Description
The power inline supply command is used to configure the PoE status of the

corresponding port.

Syntax
power inline supply { enable | disable }

Parameter
enable | disable —— The PoE status of the port. By default, the PoE status is
“enable”.

597

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
None.

Example
Enable the PoE feature for port 2:
T2600G-28MPS(config)# interface gigabitEthernet 1/0/2
T2600G-28MPS(config-if)# power inline supply enable

52.12 power inline profile
Description
The power inline profile command is used to bind a PoE profile to the
corresponding port. To cancel the bind relation, use no power inline profile
command.

Syntax
power inline profile name
no power inline profile

Parameter
name —— The name of the PoE profile to be bound to the port. If the name
being assigned contains spaces then put it inside double quotes.

Command Mode
Interface Configuration Mode (interface gigabitEthernet / interface range
gigabitEthernet)

Privilege Requirement
None.
598

Example
Bind the PoE profile named “IP Camera” to port 2:
T2600G-28MPS(config)# interface gigabitEthernet 1/0/2
T2600G-28MPS(config-if)# power inline profile “IP Camera”

52.13 power inline time-range
Description
The power inline time-range command is used to bind a PoE time-range to

the corresponding port. To cancel the bind relation, use no power inline
time-range command.

Syntax
power inline time-range name
no power inline time-range

Parameter
name —— The name of the PoE time-range to be bound to the port.

Command Mode
Interface Configuration Mode

Privilege Requirement
None.

Example
Bind the PoE time-range named “tRange2" to port 2:
T2600G-28MPS(config)# interface gigabitEthernet 1/0/2
T2600G-28MPS(config-if)# power inline time-range tRange2

599

52.14 show power inline
Description
The show power inline command is used to display the global PoE

information of the system.

Syntax
show power inline

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the PoE information of the system:
T2600G-28MPS# show power inline

52.15 show power inline configuration interface
Description
The show power inline configuration interface command is used to display
the PoE configuration of the certain port.

Syntax
show power inline configuration interface [ gigabitEthernet port ]

Parameter
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode
600

Privilege Requirement
None.

Example
Display the PoE configuration of all ports:
T2600G-28MPS# show power inline configuration interface

52.16 show power inline information interface
Description
The show power inline information command is used to display the PoE
information of the certain port.

Syntax
show power inline information interface [ gigabitEthernet port ]

Parameter
port —— The Ethernet port number.

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the PoE information of all ports:
T2600G-28MPS# show power inline information interface

52.17 show power profile
Description
The show power profile command is used to display the defined PoE profile.
601

Syntax
show power profile

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the defined PoE profile:
T2600G-28MPS# show power profile

52.18 show power holiday
Description
The show power holiday command is used to display the defined PoE

holiday.

Syntax
show power holiday

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the defined PoE holiday:
T2600G-28MPS# show power holiday

602

52.19 show power time-range
Description
The show power time-range command is used to display the configuration

of PoE time-range.

Syntax
show power time-range

Command Mode
Privileged EXEC Mode and Any Configuration Mode

Privilege Requirement
None.

Example
Display the configuration of PoE time-range:
T2600G-28MPS# show power time-range

603



Source Exif Data:
File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Tagged PDF                      : Yes
XMP Toolkit                     : Adobe XMP Core 5.4-c005 78.147326, 2012/08/23-13:03:03
Modify Date                     : 2018:03:12 17:36:40+08:00
Create Date                     : 2018:03:12 17:32:34+08:00
Metadata Date                   : 2018:03:12 17:36:40+08:00
Creator Tool                    : Acrobat PDFMaker 11 for Word
Document ID                     : uuid:1dbd8e12-99f9-4dc3-8ab9-41269bd2d95e
Instance ID                     : uuid:e913ba43-5465-475c-aff6-ee6f6bd454ec
Subject                         : 72
Format                          : application/pdf
Title                           : 
Description                     : 
Creator                         : 
Producer                        : Adobe PDF Library 11.0
Source Modified                 : D:20180312093136
Company                         : 
Comments                        : 
Page Layout                     : OneColumn
Page Mode                       : UseOutlines
Page Count                      : 626
Warning                         : [Minor] Ignored duplicate Info dictionary
EXIF Metadata provided by EXIF.tools

Navigation menu