Dell Powerconnect 3524 Quick Reference Guide Command Line Interface

2014-11-13

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FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Ryan - old template\CLItp.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Template Last Updated -03/06/2010
Dell PowerConnect 3500 Series
CLI Reference Guide
Regulatory Model: 3524, 3524P, 3548,
3548P
FILE LOCATION: C:\Users\gina\Desktop\Checkout_new\CLI Folders\Ryan - old template\CLItp.fm
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
____________________
Information in this publication is subject to change without notice.
© 2011-2012 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.
Trademarks used in this text: Dell™, the DELL logo, Dell Precision™, OptiPlex™, Latitude™, PowerEdge™, PowerVault™,
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Other trademarks and trade names may be used in this publication to refer to either the entities claiming the marks and names or their products.
Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Regulatory Models: 3524, 3524P, 3548, 3548P
May 2012 Rev. A06
Contents 3
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Contents
1 Using the CLI
CLI Command Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Starting the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Editing Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2 Command Groups
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Command Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
AAA Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Address Table Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Clock Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Configuration and Image Files Commands . . . . . . . . . . . . . . . . . . 42
DHCP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . . 42
Ethernet Configuration Commands . . . . . . . . . . . . . . . . . . . . . . 43
GVRP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
IGMP Snooping Commands . . . . . . . . . . . . . . . . . . . . . . . . . 46
IP Addressing Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . 46
IPv6 Addressing Commands . . . . . . . . . . . . . . . . . . . . . . . . . 48
LACP Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Line Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
LLDP Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Login Banner Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4Contents
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
Management ACL Commands . . . . . . . . . . . . . . . . . . . . . . . . 53
PHY Diagnostics Commands . . . . . . . . . . . . . . . . . . . . . . . . . 53
Power-over-Ethernet Commands . . . . . . . . . . . . . . . . . . . . . . . 53
Port Channel Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Port Monitor Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
QoS Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
RADIUS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
RMON Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Spanning Tree Commands . . . . . . . . . . . . . . . . . . . . . . . . . . 58
SSH Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Syslog Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
System Management Commands . . . . . . . . . . . . . . . . . . . . . . . 61
TACACS Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
TIC Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Tunnel Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
User Interface Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . 64
VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Voice VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Web Server Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
802.1x Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
3 Command Modes
GC (Global Configuration) Mode . . . . . . . . . . . . . . . . . . . . . . . 71
IC (Interface Configuration) Mode . . . . . . . . . . . . . . . . . . . . . . 77
LC (Line Configuration) Mode . . . . . . . . . . . . . . . . . . . . . . . . 80
MA (Management Access-level) Mode . . . . . . . . . . . . . . . . . . . . 80
Contents 5
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
MC (MST Configuration) Mode . . . . . . . . . . . . . . . . . . . . . . . 81
ML (MAC Access-List) Mode . . . . . . . . . . . . . . . . . . . . . . . . 81
PE (Privileged EXEC) Mode . . . . . . . . . . . . . . . . . . . . . . . . . 81
SP (SSH Public Key) Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 84
UE (User EXEC) Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
VC (VLAN Configuration) Mode. . . . . . . . . . . . . . . . . . . . . . . 87
IPAL (IP-Access List Configuration) Mode . . . . . . . . . . . . . . . . . . 88
MAL (MAC-Access List Configuration) Mode . . . . . . . . . . . . . . . . 89
4 AAA Commands
aaa authentication login . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
aaa authentication enable . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
login authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
enable authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
ip http authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
ip https authentication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
show authentication methods . . . . . . . . . . . . . . . . . . . . . . . . . 97
password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
enable password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
username . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
service password-recovery . . . . . . . . . . . . . . . . . . . . . . . . . 100
5 ACL Commands
ip access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
permit (IP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
deny (IP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
mac access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
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DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
permit (MAC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
deny (MAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
service-acl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
show access-lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
show interfaces access-lists . . . . . . . . . . . . . . . . . . . . . . . . . 112
6 Address Table Commands
bridge address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
bridge multicast filtering . . . . . . . . . . . . . . . . . . . . . . . . . . 114
bridge multicast address. . . . . . . . . . . . . . . . . . . . . . . . . . . 115
bridge multicast forbidden address . . . . . . . . . . . . . . . . . . . . . 116
bridge multicast unregistered . . . . . . . . . . . . . . . . . . . . . . . . 117
bridge multicast forward-all. . . . . . . . . . . . . . . . . . . . . . . . . 118
bridge multicast forbidden forward-all . . . . . . . . . . . . . . . . . . . 119
bridge aging-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
clear bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
port security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
port security mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
port security max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
port security routed secure-address . . . . . . . . . . . . . . . . . . . . . 123
show bridge address-table. . . . . . . . . . . . . . . . . . . . . . . . . . 124
show bridge address-table static. . . . . . . . . . . . . . . . . . . . . . . 125
show bridge address-table count . . . . . . . . . . . . . . . . . . . . . . 126
show bridge multicast address-table. . . . . . . . . . . . . . . . . . . . . 127
show bridge multicast filtering . . . . . . . . . . . . . . . . . . . . . . . 129
show bridge multicast address-table static. . . . . . . . . . . . . . . . . . 129
show bridge multicast filtering . . . . . . . . . . . . . . . . . . . . . . . 132
Contents 7
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show ports security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
show ports security addresses . . . . . . . . . . . . . . . . . . . . . . . . 134
7Clock
clock set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
clock source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
clock timezone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
clock summer-time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
sntp authentication-key . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
sntp authenticate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
sntp trusted-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
sntp client poll timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
sntp broadcast client enable . . . . . . . . . . . . . . . . . . . . . . . . . 143
sntp anycast client enable . . . . . . . . . . . . . . . . . . . . . . . . . . 144
sntp client enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
sntp client enable (Interface) . . . . . . . . . . . . . . . . . . . . . . . . 145
sntp unicast client enable . . . . . . . . . . . . . . . . . . . . . . . . . . 146
sntp unicast client poll . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
sntp server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
show clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
show sntp configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . 151
show sntp status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
8 Configuration and Image Files
copy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
delete startup-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
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dir. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
more . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
rename . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
boot system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
show running-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
show startup-config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
show bootvar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
9 DHCP Snooping
ip dhcp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
ip dhcp snooping vlan. . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
ip dhcp snooping trust. . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
ip dhcp snooping information option allowed-untrusted. . . . . . . . . . . 171
ip dhcp snooping verify . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
ip dhcp snooping database . . . . . . . . . . . . . . . . . . . . . . . . . 172
ip dhcp snooping database update-freq . . . . . . . . . . . . . . . . . . . 173
ip dhcp snooping binding . . . . . . . . . . . . . . . . . . . . . . . . . . 173
clear ip dhcp snooping database. . . . . . . . . . . . . . . . . . . . . . . 174
show ip dhcp snooping . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
show ip dhcp snooping binding . . . . . . . . . . . . . . . . . . . . . . . 176
10 Ethernet Configuration Commands
interface ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
interface range ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Contents 9
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duplex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
negotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
flowcontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
mdix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
back-pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
clear counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
set interface active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
show interfaces advertise . . . . . . . . . . . . . . . . . . . . . . . . . . 187
show interfaces configuration . . . . . . . . . . . . . . . . . . . . . . . . 188
show interfaces status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
show interfaces description . . . . . . . . . . . . . . . . . . . . . . . . . 192
show interfaces counters . . . . . . . . . . . . . . . . . . . . . . . . . . 193
port storm-control include-multicast . . . . . . . . . . . . . . . . . . . . 195
port storm-control broadcast enable . . . . . . . . . . . . . . . . . . . . . 196
port storm-control broadcast rate . . . . . . . . . . . . . . . . . . . . . . 197
show ports storm-control . . . . . . . . . . . . . . . . . . . . . . . . . . 197
11 GVRP Commands
gvrp enable (Global) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
gvrp enable (Interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
garp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
gvrp vlan-creation-forbid . . . . . . . . . . . . . . . . . . . . . . . . . . 201
gvrp registration-forbid . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
clear gvrp statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
show gvrp configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 203
show gvrp statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
show gvrp error-statistics . . . . . . . . . . . . . . . . . . . . . . . . . . 205
10 Contents
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12 IGMP Snooping Commands
ip igmp snooping (Global) . . . . . . . . . . . . . . . . . . . . . . . . . 207
ip igmp snooping (Interface) . . . . . . . . . . . . . . . . . . . . . . . . 207
ip igmp snooping mrouter. . . . . . . . . . . . . . . . . . . . . . . . . . 208
ip igmp snooping host-time-out . . . . . . . . . . . . . . . . . . . . . . . 209
ip igmp snooping mrouter-time-out . . . . . . . . . . . . . . . . . . . . . 209
ip igmp snooping leave-time-out . . . . . . . . . . . . . . . . . . . . . . 210
ip igmp snooping querier enable . . . . . . . . . . . . . . . . . . . . . . 211
ip igmp snooping querier address . . . . . . . . . . . . . . . . . . . . . . 212
show ip igmp snooping mrouter. . . . . . . . . . . . . . . . . . . . . . . 213
show ip igmp snooping interface . . . . . . . . . . . . . . . . . . . . . . 214
show ip igmp snooping groups . . . . . . . . . . . . . . . . . . . . . . . 215
13 IP Addressing Commands
ip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
ip address dhcp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
ip default-gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
show ip interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
arp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
arp timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
clear arp-cache . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
show arp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
ip domain-lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
ip domain-name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
ip name-server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
ip host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
clear host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
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clear host dhcp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
show hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
14 IPv6 Addressing
ipv6 enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
ipv6 address autoconfig . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
ipv6 icmp error-interval. . . . . . . . . . . . . . . . . . . . . . . . . . . 230
show ipv6 icmp error-interval. . . . . . . . . . . . . . . . . . . . . . . . 231
ipv6 address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
ipv6 address link-local . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
ipv6 unreachables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
ipv6 default-gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
ipv6 mld join-group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
ipv6 mld version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
show ipv6 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
show IPv6 route. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
ipv6 nd dad attempts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
ipv6 host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
ipv6 neighbor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
ipv6 set mtu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
show ipv6 neighbors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
clear ipv6 neighbors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
15 LACP Commands
lacp system-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
lacp port-priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
lacp timeout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
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show lacp ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
show lacp port-channel . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
16 Line Commands
line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
autobaud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
exec-timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
history size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
terminal history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
terminal history size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
show line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
17 Management ACL
management access-list . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
permit (Management) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
deny (Management). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
management access-class . . . . . . . . . . . . . . . . . . . . . . . . . . 264
show management access-list . . . . . . . . . . . . . . . . . . . . . . . . 265
show management access-class . . . . . . . . . . . . . . . . . . . . . . . 266
18 LLDP Commands
lldp enable (global) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
lldp enable (interface) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
lldp timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
lldp hold-multiplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
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lldp reinit-delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
lldp tx-delay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
lldp optional-tlv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
lldp management-address . . . . . . . . . . . . . . . . . . . . . . . . . . 271
lldp med enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
lldp med network-policy (global) . . . . . . . . . . . . . . . . . . . . . . 273
lldp med network-policy (interface). . . . . . . . . . . . . . . . . . . . . 274
lldp med location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
clear lldp rx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
show lldp configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
show lldp med configuration . . . . . . . . . . . . . . . . . . . . . . . . 277
show lldp local . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
show lldp neighbors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
19 Login Banner
banner exec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
banner login. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
banner motd. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
exec-banner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
login-banner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
motd-banner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
show banner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
20 PHY Diagnostics Commands
test copper-port tdr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
show copper-ports tdr . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
show copper-ports cable-length . . . . . . . . . . . . . . . . . . . . . . . 292
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21 Power over Ethernet Commands
power inline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
power inline powered-device . . . . . . . . . . . . . . . . . . . . . . . . 295
power inline priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
power inline usage-threshold . . . . . . . . . . . . . . . . . . . . . . . . 297
power inline traps enable . . . . . . . . . . . . . . . . . . . . . . . . . . 298
show power inline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
22 Port Channel Commands
interface port-channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
interface range port-channel. . . . . . . . . . . . . . . . . . . . . . . . . 306
channel-group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
show interfaces port-channel . . . . . . . . . . . . . . . . . . . . . . . . 308
23 Port Monitor Commands
port monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
show ports monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
24 QoS Commands
qos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
show qos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
priority-queue out num-of-queues. . . . . . . . . . . . . . . . . . . . . . 314
traffic-shape. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
rate-limit (Ethernet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
wrr-queue cos-map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
show qos interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
qos map dscp-queue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
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qos trust (Global) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
qos cos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
show qos map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
25 RADIUS Commands
radius-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
radius-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
radius-server retransmit . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
radius-server source-ip . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
radius-server source-ipv6 . . . . . . . . . . . . . . . . . . . . . . . . . . 328
radius-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
radius-server deadtime . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
show radius-servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
26 RMON Commands
show rmon statistics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
rmon collection history . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
show rmon collection history . . . . . . . . . . . . . . . . . . . . . . . . 336
show rmon history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
rmon alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
show rmon alarm-table . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
show rmon alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
rmon event . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
show rmon events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345
show rmon log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346
rmon table-size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
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27 SNMP Commands
snmp-server community. . . . . . . . . . . . . . . . . . . . . . . . . . . 349
snmp-server view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
snmp-server group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
snmp-server user . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
snmp-server engineID local . . . . . . . . . . . . . . . . . . . . . . . . . 355
snmp-server enable traps . . . . . . . . . . . . . . . . . . . . . . . . . . 356
snmp-server filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
snmp-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
snmp-server v3-host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
snmp-server trap authentication . . . . . . . . . . . . . . . . . . . . . . . 361
snmp-server contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
snmp-server location . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
snmp-server set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362
show snmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
show snmp engineid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
show snmp views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
show snmp groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
show snmp filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
show snmp users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369
28 Spanning-Tree Commands
spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
spanning-tree mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
spanning-tree forward-time . . . . . . . . . . . . . . . . . . . . . . . . . 372
spanning-tree hello-time . . . . . . . . . . . . . . . . . . . . . . . . . . 373
spanning-tree max-age . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
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spanning-tree priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
spanning-tree disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
spanning-tree cost. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
spanning-tree port-priority . . . . . . . . . . . . . . . . . . . . . . . . . 376
spanning-tree portfast . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
spanning-tree link-type . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
spanning-tree pathcost method . . . . . . . . . . . . . . . . . . . . . . . 378
spanning-tree bpdu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379
clear spanning-tree detected-protocols . . . . . . . . . . . . . . . . . . . 380
spanning-tree mst priority. . . . . . . . . . . . . . . . . . . . . . . . . . 380
spanning-tree mst max-hops . . . . . . . . . . . . . . . . . . . . . . . . 381
spanning-tree mst port-priority . . . . . . . . . . . . . . . . . . . . . . . 382
spanning-tree mst cost . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
spanning-tree mst configuration. . . . . . . . . . . . . . . . . . . . . . . 383
instance (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
name (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386
revision (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386
show (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
exit (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388
abort (mst) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
show spanning-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
spanning-tree guard root . . . . . . . . . . . . . . . . . . . . . . . . . . 405
29 SSH Commands
ip ssh port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
ip ssh server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
crypto key generate dsa . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
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crypto key generate rsa . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
ip ssh pubkey-auth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
crypto key pubkey-chain ssh . . . . . . . . . . . . . . . . . . . . . . . . 410
user-key. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
key-string . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412
show ip ssh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414
show crypto key mypubkey . . . . . . . . . . . . . . . . . . . . . . . . . 415
show crypto key pubkey-chain ssh . . . . . . . . . . . . . . . . . . . . . 416
30 Syslog Commands
logging on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
logging console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 419
logging buffered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
logging buffered size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
clear logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422
logging file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422
clear logging file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423
aaa logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423
file-system logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424
management logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425
show logging file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
show syslog-servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429
31 System Management
ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
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traceroute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433
telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
resume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
reload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
service cpu-utilization. . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
stack master. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
stack reload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
show stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
show users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444
show sessions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445
show system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446
show version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447
asset-tag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 448
show system id . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450
show cpu utilization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 451
32 TACACS+ Commands
tacacs-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453
tacacs-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 454
tacacs-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
tacacs-server source-ip . . . . . . . . . . . . . . . . . . . . . . . . . . . 455
show tacacs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456
33 TIC Commands
passwords min-length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459
password-aging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
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passwords aging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
passwords history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
passwords history hold-time . . . . . . . . . . . . . . . . . . . . . . . . 462
passwords lockout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
aaa login-history file . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464
set username active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464
set line active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
set enable-password active . . . . . . . . . . . . . . . . . . . . . . . . . 465
show passwords configuration . . . . . . . . . . . . . . . . . . . . . . . 466
show users login-history . . . . . . . . . . . . . . . . . . . . . . . . . . 468
show users accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 469
34 Tunnel
interface tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471
tunnel mode ipv6ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 471
tunnel isatap router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472
tunnel source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473
tunnel isatap query-interval . . . . . . . . . . . . . . . . . . . . . . . . . 474
tunnel isatap solicitation-interval . . . . . . . . . . . . . . . . . . . . . . 474
tunnel isatap robustness . . . . . . . . . . . . . . . . . . . . . . . . . . . 475
show ipv6 tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476
35 User Interface
enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
configure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
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exit (Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479
exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480
help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481
terminal datadump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
show history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 483
show privilege . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
36 VLAN Commands
vlan database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
interface vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486
interface range vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
switchport access vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
switchport trunk allowed vlan. . . . . . . . . . . . . . . . . . . . . . . . 489
switchport trunk native vlan. . . . . . . . . . . . . . . . . . . . . . . . . 490
switchport general allowed vlan. . . . . . . . . . . . . . . . . . . . . . . 490
switchport general pvid . . . . . . . . . . . . . . . . . . . . . . . . . . . 491
switchport general ingress-filtering disable . . . . . . . . . . . . . . . . . 492
switchport general acceptable-frame-type tagged-only . . . . . . . . . . . 492
switchport forbidden vlan . . . . . . . . . . . . . . . . . . . . . . . . . . 493
switchport mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494
switchport customer vlan . . . . . . . . . . . . . . . . . . . . . . . . . . 495
switchport protected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
map protocol protocols-group . . . . . . . . . . . . . . . . . . . . . . . . 496
switchport general map protocols-group vlan . . . . . . . . . . . . . . . . 497
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ip internal-usage-vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 498
show vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 499
show vlan protocols-groups . . . . . . . . . . . . . . . . . . . . . . . . . 499
show vlan internal usage . . . . . . . . . . . . . . . . . . . . . . . . . . 500
show interfaces switchport . . . . . . . . . . . . . . . . . . . . . . . . . 501
37 Voice VLAN
voice vlan id . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507
voice vlan oui-table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508
voice vlan cos. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510
voice vlan aging-timeout . . . . . . . . . . . . . . . . . . . . . . . . . . 510
voice vlan enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511
voice vlan secure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512
show voice vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512
38 Web Server
ip http server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515
ip http port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515
ip http exec-timeout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 516
ip https server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
ip https port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
ip https exec-timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . 518
crypto certificate generate. . . . . . . . . . . . . . . . . . . . . . . . . . 519
crypto certificate request . . . . . . . . . . . . . . . . . . . . . . . . . . 520
crypto certificate import. . . . . . . . . . . . . . . . . . . . . . . . . . . 521
ip https certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524
show crypto certificate mycertificate . . . . . . . . . . . . . . . . . . . . 524
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show ip http. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525
show ip https . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526
39 802.1x Commands
aaa authentication dot1x . . . . . . . . . . . . . . . . . . . . . . . . . . 529
dot1x system-auth-control. . . . . . . . . . . . . . . . . . . . . . . . . . 530
dot1x port-control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530
dot1x re-authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 531
dot1x timeout re-authperiod. . . . . . . . . . . . . . . . . . . . . . . . . 532
dot1x re-authenticate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533
dot1x timeout quiet-period . . . . . . . . . . . . . . . . . . . . . . . . . 533
dot1x timeout tx-period . . . . . . . . . . . . . . . . . . . . . . . . . . . 534
dot1x max-req. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
dot1x timeout supp-timeout . . . . . . . . . . . . . . . . . . . . . . . . . 536
dot1x timeout server-timeout . . . . . . . . . . . . . . . . . . . . . . . . 536
dot1x send-async-request-id. . . . . . . . . . . . . . . . . . . . . . . . . 537
show dot1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 538
show dot1x users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541
show dot1x statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542
ADVANCED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . 544
dot1x auth-not-req . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544
dot1x multiple-hosts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545
dot1x single-host-violation . . . . . . . . . . . . . . . . . . . . . . . . . 545
dot1x guest-vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546
dot1x guest-vlan enable . . . . . . . . . . . . . . . . . . . . . . . . . . . 547
dot1x mac-authentication . . . . . . . . . . . . . . . . . . . . . . . . . . 548
dot1x traps mac-authentication failure . . . . . . . . . . . . . . . . . . . 549
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dot1x radius-attributes vlan . . . . . . . . . . . . . . . . . . . . . . . . . 549
show dot1x advanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
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Using the CLI 25
1
Using the CLI
This chapter describes how to start using the CLI and describes the command editing features to
assist in using the CLI.
CLI Command Modes
Introduction
To assist in configuring the device, the Command Line Interface (CLI) is divided into different
command modes. Each command mode has its own set of specific commands. Entering a question
mark "?" at the system prompt (console prompt) displays a list of commands available for that
particular command mode.
From each mode a specific command is used to navigate from one command mode to another. The
standard order to access the modes is as follows: User EXEC mode, Privileged EXEC mode,
Global Configuration mode, and Interface Configuration mode. The following figure illustrates the
command mode access path.
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When starting a session, the initial mode is the User EXEC mode. Only a limited subset of
commands are available in the User EXEC mode. This level is reserved for tasks that do not change
the configuration. To enter the next level, the Privileged EXEC mode, a password is required.
The Privileged EXEC mode gives access to commands that are restricted on User EXEC mode and
provides access to the device Configuration mode.
The Global Configuration mode manages the device configuration on a global level.
The Interface Configuration mode configures specific interfaces in the device.
User EXEC Mode
After logging into the device, the user is automatically in the User EXEC command mode unless
the user is defined as a privileged user. In general, the User EXEC commands allow the user to
perform basic tests, and list system information.
The user-level prompt consists of the device host name followed by the angle bracket (>).
Console>
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The default host name is Console unless it was changed using the hostname command in the
Global Configuration mode.
Privileged EXEC Mode
Privileged access is password protected to prevent unauthorized use because, many of the
privileged commands set operating system parameters. The password is not displayed on the screen
and is case sensitive.
Privileged users enter directly into the Privileged EXEC mode. To enter the Privileged EXEC mode
from the User EXEC mode, perform the following steps:
1
At the prompt enter the
enable
command and press <Enter>. A password prompt appears.
2
Enter the password and press <Enter>. The password is displayed as *. The Privileged EXEC
mode prompt is displayed. The Privileged EXEC mode prompt consists of the device host name
followed by
#
.
To return from the Privileged EXEC mode to the User EXEC mode, use the disable command. The
following example illustrates how to access the Privileged EXEC mode and return to the User
EXEC mode:
The exit command is used to return from any mode to the previous mode except when returning to
the User EXEC mode from the Privileged EXEC mode. For example, the exit command is used to
return from the Interface Configuration mode to the Global Configuration mode.
Global Configuration Mode
Global Configuration mode commands apply to features that affect the system as a whole, rather
than just a specific interface. The configure Privileged EXEC mode command is used to enter the
Global Configuration mode.
Console#
Console> enable
Enter Password: ******
Console#
Console# disable
Console>
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To enter the Global Configuration mode, at the Privileged EXEC mode prompt enter the command
configure and press <Enter>. The Global Configuration mode prompt is displayed. The Global
Configuration mode prompt consists of the device host name followed by (config) and #.
To return from the Global Configuration mode to the Privileged EXEC mode, the user can use one
of the following commands:
•exit
•end
•Ctrl+Z
The following example illustrates how to access the Global Configuration mode and return to the
Privileged EXEC mode:
Interface Configuration Mode and Specific Configuration Modes
Interface Configuration mode commands modify specific interface operations. The following are
the Interface Configuration modes:
•
Line Interface
— Contains commands to configure the management connections. These include
commands such as line timeout settings, etc. The
line
Global Configuration mode command is
used to enter the Line Configuration command mode.
•
VLAN Database
— Contains commands to create a VLAN as a whole. The
vlan database
Global Configuration mode command is used to enter the VLAN Database Interface
Configuration mode.
•
Management Access List
— Contains commands to define management access-lists. The
management access-list
Global Configuration mode command is used to enter the Management
Access List Configuration mode.
•
Ethernet
— Contains commands to manage port configuration. The
interface ethernet
Global
Configuration mode command is used to enter
the Interface Configuration mode to configure an
Ethernet type interface.
Console(config)#
Console#
Console# configure
Console(config)# exit
Console#
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•
Port Channel
— Contains commands to configure port-channels, for example, assigning ports
to a port-channel. Most of these commands are the same as the commands in the Ethernet
interface mode, and are used to manage the member ports as a single entity. The
interface port-
channel
Global Configuration mode command is used to enter the Port Channel Interface
Configuration mode.
•
SSH Public Key-chain
— Contains commands to manually specify other device SSH public
keys. The
crypto key pubkey-chain ssh
Global Configuration mode command is used to enter
the SSH Public Key-chain Configuration mode.
•QoS — Contains commands related to service definitions. The qos Global Configuration
mode command is used to enter the QoS services configuration mode.
•MAC Access-List— Configures conditions required to allow traffic based on MAC
addresses. The ip access-list Global Configuration mode command is used to enter the MAC
access-list configuration mode.
Starting the CLI
The device can be managed over a direct connection to the device console port or via a Telnet
connection. The device is managed by entering command keywords and parameters at the prompt.
Using the device command-line interface (CLI) is very similar to entering commands on a UNIX
system.
If access is via a Telnet connection, ensure that the device has a defined IP address, corresponding
management access is granted, and the workstation used to access the device is connected to the
device prior to using CLI commands.
NOTE: The following steps are for use on the console line only.
To start using the CLI, perform the following steps:
1
Connect the DB9 null-modem or cross over cable to the RS-232 serial port of the device to the
RS-232 serial port of the terminal or computer running the terminal emulation application.
NOTE: The default data rate, for Ryan, is 115,200 (Console port on unit shows a default data rate of
9600).
a
Set the data format to 8 data bits, 1 stop bit, and no parity.
b
Set Flow Control to
none
.
c
Under
Properties
, select
VT100 for Emulation
mode.
d
Select
Terminal keys
for
Function, Arrow, and Ctrl keys
. Ensure that the setting is for
Terminal keys
(not
Windows keys
).
NOTICE: When using HyperTerminal with Microsoft® Windows 2000, ensure that Windows® 2000
Service Pack 2 or later is installed. With Windows 2000 Service Pack 2, the arrow keys function
properly in HyperTerminal’s VT100 emulation. Go to www.microsoft.com for information on Windows
2000 service packs.
For more information, see
Dell™ PowerConnect™ 3500 Series User's Guide
.
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2
Enter the following commands to begin the configuration procedure:
Console> enable
Console# configure
Console(config)#
3
Configure the device and enter the necessary commands to complete the required tasks.
4
When finished, exit the session with the
exit
command.
When a different user is required to log onto the system, use the login Privileged EXEC mode
command. This effectively logs off the current user and logs on the new user.
Editing Features
Entering Commands
A CLI command is a series of keywords and arguments. Keywords identify a command, and
arguments specify configuration parameters. For example, in the command show interfaces status
ethernet 1/e11, show, interfaces and status are keywords, ethernet is an argument that specifies
the interface type, and 1/e11 specifies the port.
To enter commands that require parameters, enter the required parameters after the command
keyword. For example, to set a password for the administrator, enter:
Console(config)# username admin password alansmith
When working with the CLI, the command options are not displayed. The command is not selected
from a menu, but is manually entered. To see what commands are available in each mode or within
an interface configuration, the CLI provides a method of displaying the available commands, the
command syntax requirements and in some instances, parameters required to complete the
command. The standard command to request help is the character ?.
There are two instances where help information can be displayed:
•
Keyword lookup
— The character
?
is entered in place of a command. A list of all valid
commands and corresponding help messages are is displayed.
•
Partial keyword lookup
— If a command is incomplete and or the character
?
is entered in
place of a parameter. The matched keyword or parameters for this command are displayed.
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To assist in using the CLI, there is an assortment of editing features. The following features are
described:
• Terminal Command Buffer
• Command Completion
• Keyboard Shortcuts
Copying and Pasting Text
Up to 100 lines of text (i.e., commands) can be copied and pasted into the device.
NOTE: This editing features are for Telnet only.
NOTE: It is the user’s responsibility to ensure that the text copied into the device consists of legal
commands only.
When copying and pasting commands from a configuration file, make sure that the following
conditions exist:
• A device Configuration mode has been accessed.
• The commands contain no encrypted data, like encrypted passwords or keys. Encrypted data
cannot be copied and pasted into the device.
Setup Wizard
The CLI supports a Setup Wizard. This is an easy-to-use user interface which quickly guides the
user in setting up basic device information, so that the device can be easily managed from a Web
Based Interface. Refer to the Getting Started Guide and User Guide for more information on the
Setup Wizard.
Terminal Command Buffer
Every time a command is entered in the CLI, it is recorded on an internally managed Command
History buffer. Commands stored in the buffer are maintained on a First In First Out (FIFO) basis.
These commands can be recalled, reviewed, modified, and reissued. This buffer is not preserved
across device resets.
By default, the history buffer system is enabled, but it can be disabled at any time. For information
about the command syntax to enable or disable the history buffer, see history.
Keyword Description
Up-arrow key
Ctrl+P Recalls commands in the history buffer, beginning with the most recent
command. Repeats the key sequence to recall successively older
commands.
Down-arrow key Returns to more recent commands in the history buffer after recalling
commands with the up-arrow key. Repeating the key sequence will recall
successively more recent commands.
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There is a standard default number of commands that are stored in the buffer. The standard number
of 10 commands can be increased to 216. By configuring 0, the effect is the same as disabling the
history buffer system. For information about the command syntax for configuring the command
history buffer, see history size.
To display the history buffer, see show history.
Negating the Effect of Commands
For many configuration commands, the prefix keyword no can be entered to cancel the effect of a
command or reset the configuration to the default value. This guide describes the negation effect
for all applicable commands.
Command Completion
An appropriate error message displays if the entered command is incomplete or invalid; or has
missing or invalid parameters. This assists in entering the correct command.
Keyboard Shortcuts
The CLI has a range of keyboard shortcuts to assist in editing the CLI commands. The following
table describes the CLI shortcuts.
Keyboard Key Description
Up-arrow key Recalls commands from the history buffer, beginning with the most recent command.
Repeat the key sequence to recall successively older commands.
Down-arrow key Returns the most recent commands from the history buffer after recalling commands
with the up arrow key. Repeating the key sequence will recall successively more
recent commands.
Ctrl+A Moves the cursor to the beginning of the command line.
Ctrl+E Moves the cursor to the end of the command line.
Ctrl+Z / End Returns back to the Privileged EXEC mode from any configuration mode.
Backspace key Deletes one character left to the cursor position.
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CLI Command Conventions
When entering commands there are certain command entry standards that apply to all commands.
The following table describes the command conventions.
Convention Description
[ ] In a command line, square brackets indicate an optional entry.
{ } In a command line, curly brackets indicate a selection of compulsory
parameters separated by the | character. One option must be selected. For
example, flowcontrol {auto|on|off} means that for the flowcontrol
command either auto, on or off must be selected.
Italic font Indicates a parameter.
<Enter> Indicates an individual key on the keyboard. For example, <Enter>
indicates the Enter key.
Ctrl+F4 Any combination of keys pressed simultaneously on the keyboard.
Screen
Display
Indicates system messages and prompts appearing on the console.
all
When a parameter is required to define a range of ports or parameters and
all
is an option, the default for the command is
all
when no parameters are
defined. For example, the command
interface range port-channel
has the
option of either entering a range of channels, or selecting
all
. When the
command is entered without a parameter, it automatically defaults to
all
.
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Command Groups 35
2
Command Groups
Introduction
The Command Language Interface (CLI) is a network management application operated through
an ASCII terminal without the use of a Graphical User Interface (GUI) driven software application.
By directly entering commands, you achieve greater configuration flexibility. The CLI is a basic
command-line interpreter similar to the UNIX C shell.
You can configure and maintain a device by entering commands from the CLI, which is based
solely on textual input and output; you enter commands using a terminal keyboard and the textual
output displays via a terminal monitor. You can access the CLI from a VT100 terminal connected to
the console port of the device or through a Telnet connection from a remote host.
The first time you use the CLI from the console a Setup Wizard is invoked. The Setup Wizard
guides you in setting up a minimum configuration, so that the device can be managed from the Web
Based Interface. Refer to the Getting Started Guide and User Guide for more information on the
Setup Wizard.
This guide describes how the Command Line Interface (CLI) is structured, describes the command
syntax, and describes the command functionality.
This guide also provides information for configuring the PowerConnect device, details the
procedures, and provides configuration examples. Basic installation configuration is described in
the User’s Guide and must be completed before using this document.
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Command Groups
The system commands can be broken down into functional groups as shown below.
Command Group Description
AAA Commands Configures connection security including authorization and
passwords.
ACL Commands Configures ACL on the device.
Address Table Commands Configures bridging Address Tables.
Clock Commands Configures clock commands on the device.
Configuration and Image Files
Commands Manages the device configuration files.
DHCP Snooping Commands Configuring DHCP snooping on the device.
Ethernet Configuration Configures all port configuration options for, example ports, storm
control, and auto-negotiation.
GVRP Commands Configures and displays GVRP configuration and information.
IGMP Snooping Commands Configures IGMP snooping and displays IGMP configuration and
IGMP information.
IP Addressing Commands Configures and manages IP addresses on the device.
IPv6 Addressing Commands Configures and manages IPv6 addresses on the device.
LACP Commands Configures and displays LACP information.
Line Commands Configures the console and remote Telnet connection.
LLDP Commands Configures and displays LLDP information.
Login Banner Commands Configures customizable login banners on the device.
Management ACL Commands Configures and displays management access-list information.
PHY Diagnostics Commands Diagnoses and displays the interface status.
Power-over-Ethernet Commands Configure Power over Ethernet settings on the device.
Port Channel Commands Configures and displays Port Channel information.
Port Monitor Commands Monitors activity on specific target ports.
QoS Commands Configures and displays QoS information.
RADIUS Commands Configures and displays RADIUS information.
RMON Commands Displays RMON statistics.
SNMP Commands Configures SNMP communities, traps and displays SNMP
information.
Spanning Tree Commands Configures and reports on Spanning Tree protocol.
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AAA Commands
SSH Commands Configures SSH authentication.
Syslog Commands Manages and displays syslog messages.
System Management Commands Configures the device clock, name and authorized users.
TACACS Commands Configures TACACS+ commands.
TIC Commands Configures and displays TIC information.
Tunnel Commands
Configures tunnel routing configurations.
User Interface Commands Describes user commands used for entering CLI commands.
VLAN Commands Configures VLANs and displays VLAN information.
Voice VLAN Commands Configures Voice VLANs and displays VLAN information.
Web Server Commands Configures Web based access to the device.
802.1x Commands Configures commands related to 802.1x security protocol.
Command Group Description Access Mode
aaa authentication login Defines login authentication. Global
Configuration
aaa authentication enable Defines authentication method lists for accessing higher
privilege levels. Global
Configuration
login authentication Specifies the login authentication method list for a remote
telnet or console. Line
Configuration
enable authentication Specifies the authentication method list when accessing a
higher privilege level from a remote telnet or console. Line
Configuration
ip http authentication Specifies authentication methods for HTTP server users. Global
Configuration
ip https authentication Specifies authentication methods for HTTPS server users. Global
Configuration
show authentication
methods Displays information about the authentication methods. Privileged EXEC
password Specifies a password on a line. Line
Configuration
enable password Sets a local password to control access to normal and
privilege levels. Global
Configuration
username Establishes a username-based authentication system. Global
Configuration
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ACL Commands
Address Table Commands
Command Group Description Access Mode
ip access-list Creates Layer 2 ACLs. Global
Configuration
permit (IP) Permits traffic if the conditions defined in the permit
statement match. IP Access-List
Configuration
deny (IP) Denies traffic if the conditions defined in the deny
statement match. IP Access-List
Configuration
mac access-list Creates Layer 2 ACLs. Global
Configuration
permit (MAC) Set permit conditions for a MAC access list MAC Access-List
Configuration
deny (MAC) Denies traffic if the conditions defined in the deny
statement match MAC Access-List
Configuration
service-acl Sets the default ace action to permit or deny. Interface
Configuration
show access-lists Applies an ACL to the input interface. Privileged EXEC
show interfaces access-
lists Displays ACLs defined on the device. Privileged EXEC
Command Group Description Access Mode
bridge address Adds a static MAC-layer station source address to the
bridge table. Interface (VLAN)
Configuration
bridge multicast filtering Enables filtering of Multicast addresses. Global
Configuration
bridge multicast address Registers MAC-layer Multicast addresses to the
bridge table, and adds static ports to the group. Interface (VLAN)
Configuration
bridge multicast forbidden
address Forbids adding a specific Multicast address to specific
ports. Interface (VLAN)
Configuration
bridge multicast
unregistered Configures the forwarding state of unregistered
multicast addresses. Interface
Configuration
bridge multicast forward-
all Enables forwarding all Multicast frames on a port. Interface (VLAN)
Configuration
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bridge multicast forbidden
forward-all Forbids a port from becoming a forward-all Multicast
port. Interface (VLAN)
Configuration
bridge aging-time Sets the Address Table aging time. Global
Configuration
clear bridge Removes any learned entries from the forwarding
database. Privileged EXEC
port security Disables new address learning/forwarding on an
interface. Interface
Configuration
port security mode Configures the port security learning mode. Interface
Configuration
port security max Configures the maximum number of addresses that
may be learned on the port while the port is in port
security mode.
Interface
Configuration
port security routed
secure-address Adds MAC-layer secure addresses to a routed port. Interface
Configuration
show bridge address-table Displays all entries in the bridge-forwarding database. Privileged EXEC
show bridge address-table
static
Displays statically created entries in the bridge-
forwarding database
.Privileged EXEC
show bridge address-table
count Displays the number of addresses present in the
bridge-forwarding database. Privileged EXEC
show bridge multicast
address-table Displays all entries in the bridge-forwarding database. Privileged EXEC
show bridge multicast
address-table static Displays the statically configured multicast addresses. Privileged EXEC
show bridge multicast
filtering Displays the Multicast filtering configuration. Privileged EXEC
show ports security Displays the port-lock status. Privileged EXEC
show ports security
addresses Displays current dynamic addresses in locked ports. Privileged EXEC
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Clock Commands
Command Group Description Access Mode
clock set Manually sets the system clock. Privileged EXEC
clock source Configures an external time source for the system
clock. Global Configuration
clock timezone Sets the time zone for display purposes. Global Configuration
clock summer-time Configures the system to automatically switch to
summer time (daylight saving time). Global Configuration
sntp authentication-key Defines an authentication key for Simple
Network Time Protocol (SNTP). Global Configuration
sntp authenticate Grants authentication for received Network Time
Protocol (NTP) traffic from servers. Global Configuration
sntp trusted-key Authenticates the identity of a system to which
Simple Network Time Protocol (SNTP) will
synchronize.
Global Configuration
sntp client poll timer Sets the polling time for the Simple Network
Time Protocol (SNTP) client. Global Configuration
sntp broadcast client
enable Enables the Simple Network Time Protocol
(SNTP) Broadcast clients. Global Configuration
sntp anycast client enable Enables Anycast clients. Global Configuration
sntp client enable
Enables the Simple Network Time Protocol
(SNTP) Broadcast and Anycast client on an
interface.
Global Configuration
sntp client enable
(Interface) Enables the Simple Network Time Protocol
(SNTP) client on an interface. Interface Configuration
sntp unicast client enable Enables the device to use the Simple Network
Time Protocol (SNTP) to request and accept
Simple Network Time Protocol (SNTP) traffic
from servers.
Global Configuration
sntp unicast client poll Enables polling for the Simple Network Time
Protocol (SNTP) predefined Unicast clients. Global Configuration
sntp server Configures the device to use the Simple Network
Time Protocol (SNTP) to request and accept
Simple Network Time Protocol (SNTP) traffic
from a server.
Global Configuration
show clock Displays the time and date from the system
clock. User EXEC
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show sntp configuration Shows the configuration of the Simple Network
Time Protocol (SNTP). Privileged EXEC
show sntp status Shows the status of the Simple Network Time
Protocol (SNTP). Privileged EXEC
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Configuration and Image Files Commands
DHCP Snooping Commands
Command Group Description Access Mode
copy Copies files from a source to a destination. Privileged EXEC
delete Deletes a file from a Flash memory device. Privileged EXEC
delete startup-config Deletes the startup-config file. Privileged EXEC
dir Displays a list of files on a flash file system. Privileged EXEC
more Displays a file. Privileged EXEC
rename Renames a file. Privileged EXEC
boot system Specifies the system image that the device loads at
startup. Privileged EXEC
show running-config Displays the contents of the currently running
configuration file. Privileged EXEC
show startup-config Displays the startup configuration file contents. Privileged EXEC
show bootvar Displays the active system image file that the device
loads at startup. Privileged EXEC
Command Group Description Access Mode
ip dhcp snooping Globally enables DHCP snooping Global
Configuration
ip dhcp snooping vlan Enables DHCP snooping on a VLAN. Global
Configuration
ip dhcp snooping trust Configures a port as trusted for DHCP snooping
purposes. Interface
Configuration
ip dhcp snooping
information option
allowed-untrusted
Configures a switch to accept DHCP packets with
option-82 information from an untrusted port. Global
Configuration
ip dhcp snooping verify Configures a switch to accept DHCP packets with
option-82 information from an untrusted port. Global
Configuration
ip dhcp snooping database Configures the DHCP snooping binding file. Global
Configuration
ip dhcp snooping database
update-freq Configures the update frequency of the DHCP
snooping binding file. Global
Configuration
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Ethernet Configuration Commands
ip dhcp snooping binding Configures the update frequency of the DHCP
snooping binding file. Privileged EXEC
clear ip dhcp snooping
database Clears the DHCP snooping binding database. Privileged EXEC
show ip dhcp snooping Displays the DHCP snooping configuration. EXEC
show ip dhcp snooping
binding
Displays the DHCP snooping binding database
and configuration information for all interfaces on
a switch.
User EXEC
Command Group Description Access Mode
interface ethernet Enters the interface configuration mode to configure
an Ethernet type interface. Global
Configuration
interface range ethernet Enters the interface configuration mode to configure
multiple Ethernet type interfaces. Global
Configuration
shutdown Disables interfaces. Interface
Configuration
description Adds a description to an interface. Interface
Configuration
speed Configures the speed of a given Ethernet interface
when not using auto-negotiation. Interface
Configuration
duplex Configures the full/half duplex operation of a given
Ethernet interface when not using auto-negotiation. Interface
Configuration
negotiation Enables auto-negotiation operation for the speed and
duplex parameters of a given interface. Interface
Configuration
flowcontrol Configures the Flow Control on a given interface. Interface
Configuration
mdix Enables automatic crossover on a given interface. Interface
Configuration
back-pressure Enables Back Pressure on a given interface. Interface
Configuration
clear counters Clears statistics on an interface. Privileged EXEC
set interface active Reactivates an interface that was suspended by the
system. Privileged EXEC
show interfaces advertise Displays auto negotiation advertisement data. Privileged EXEC
show interfaces
configuration Displays the configuration for all interfaces. Privileged EXEC
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show interfaces status Displays the status for all interfaces. Privileged EXEC
show interfaces
description Displays the description for all interfaces. Privileged EXEC
show interfaces counters Displays traffic seen by the physical interface. Privileged EXEC
port storm-control
include-multicast Enables the device to count Multicast packets with
Broadcast packets. Interface
Configuration
port storm-control
broadcast enable Enables Broadcast storm control. Interface
Configuration
port storm-control
broadcast rate Configures the maximum Broadcast rate. Interface
Configuration
show ports storm-control Displays the storm control configuration. Privileged User
EXEC
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GVRP Commands
Command Group Description Mode
gvrp enable (Global) Enables GVRP globally. Global
Configuration
gvrp enable (Interface) Enables GVRP on an interface. Interface
Configuration
garp timer Adjusts the GARP application join, leave, and leaveall
GARP timer values. Interface
Configuration
gvrp vlan-creation-forbid Enables or disables dynamic VLAN creation. Interface
Configuration
gvrp registration-forbid De-registers all VLANs, and prevents dynamic
VLAN registration on the port. Interface
Configuration
clear gvrp statistics Clears all the GVRP statistics information. Privileged EXEC
show gvrp configuration Displays GVRP configuration information. User EXEC
show gvrp statistics Displays GVRP statistics. User EXEC
show gvrp error-statistics Displays GVRP error statistics. User EXEC
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IGMP Snooping Commands
IP Addressing Commands
Command Group Description Access Mode
ip igmp snooping (Global) Enables Internet Group Management Protocol
(IGMP) snooping. Global
Configuration
ip igmp snooping
(Interface) Enables Internet Group Management Protocol
(IGMP) snooping on a specific VLAN. Interface (VLAN)
ip igmp snooping mrouter Enables automatic learning of Multicast router ports. Interface (VLAN)
ip igmp snooping host-
time-out Configures the host-time-out. Interface (VLAN)
ip igmp snooping mrouter-
time-out Configures the mrouter-time-out. Interface (VLAN)
ip igmp snooping leave-
time-out Configures the leave-time-out. Interface (VLAN)
ip igmp snooping querier
enable Enables Internet Group Management Protocol
(IGMP) querier on a specific VLAN Interface (VLAN)
ip igmp snooping querier
address Defines the source IP address that the IGMP Snooping
querier uses. Interface (VLAN)
show ip igmp snooping
mrouter Displays information on dynamically learned
Multicast router interfaces. User EXEC
show ip igmp snooping
interface Displays IGMP snooping configuration. User EXEC
show ip igmp snooping
groups Displays Multicast groups learned by IGMP
snooping. User EXEC
Command Group Description Access Mode
ip address
Sets an IP address.
Interface
Configuration
ip address dhcp Acquires an IP address on an interface from the
DHCP server. Interface
Configuration
ip default-gateway
Defines a default gateway (router).
Global
Configuration
show ip interface Displays the usability status of interfaces configured
for IP. Privileged EXEC
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arp Adds a permanent entry in the ARP cache. Global
Configuration
arp timeout Configures how long an entry remains in the ARP
cache. Global
Configuration
clear arp-cache Deletes all dynamic entries from the ARP cache. Privileged EXEC
show arp Displays entries in the ARP table. Privileged EXEC
ip domain-lookup
Enables the IP Domain Naming System (DNS)-based
host name-to-address translation.
Global
Configuration
ip domain-name
Defines a default domain name that the software uses to
complete unqualified host names.
Global
Configuration
ip name-server
Sets the available name servers.
Global
Configuration
ip host
Defines static host name-to-address mapping in the host
cache.
Global
Configuration
clear host
Deletes entries from the host name-to-address cache.
Privileged EXEC
clear host dhcp
Deletes entries from the host name-to-address mapping
received from Dynamic Host Configuration Protocol
(DHCP).
Privileged EXEC
show hosts
Displays the default domain name, a list of name server
hosts, the static and cached list of host names and
addresses.
Privileged EXEC
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IPv6 Addressing Commands
Command Group Description Access Mode
ipv6 enable Enables IPv6 processing on an interface. Interface Configu-
ration
ipv6 address autoconfig Enables automatic configuration of IPv6 addresses
using stateless autoconfiguration on an interface. Interface Configu-
ration
ipv6 icmp error-interval Configures the rate limit interval and bucket size
parameters for IPv6 ICMP error messages. Global Configura-
tion
show ipv6 icmp error-
interval
Displays
the IPv6 ICMP error interval setting Privileged EXEC
ipv6 address Configures an IPv6 address for an interface. Interface Configu-
ration
ipv6 address link-local Configures an IPv6 link-local address for an interface. Interface Configu-
ration
ipv6 unreachables Enables the generation of Internet Control Message
Protocol for IPv6 (ICMPv6) unreachable messages for
any packets arriving on a specified interface.
Interface Configu-
ration
ipv6 default-gateway Defines an IPv6 default gateway. Global Configura-
tion
ipv6 mld join-group Configures Multicast Listener Discovery (MLD)
reporting for a specified group. Interface Configu-
ration
ipv6 mld version Changes the Multicast Listener Discovery Protocol
(MLD) version. Interface Configu-
ration
show ipv6 interface Displays the usability status of interfaces configured
for IPv6. Privileged EXEC
show IPv6 route Displays the current state of the IPv6 routing table. Privileged EXEC
ipv6 nd dad attempts Configures the number of consecutive neighbor solici-
tation messages that are sent on an interface while
duplicate address detection is performed on the uni-
cast IPv6 addresses of the interface.
Interface Configu-
ration
ipv6 host Defines a static host name-to-address mapping in the
host name cache. Global Configura-
tion
ipv6 neighbor Configures a static entry in the IPv6 neighbor discov-
ery cache. Global Configura-
tion
ipv6 set mtu Sets the MTU size of IPv6 packets sent on an inter-
face. Privileged EXEC
show ipv6 neighbors Displays IPv6 neighbor discovery cache information. Privileged EXEC
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LACP Commands
Line Commands
Line Commands
clear ipv6 neighbors Deletes all entries in the IPv6 neighbor discovery
cache, except static entries. Privileged EXEC
Command Group Description Access Mode
lacp system-priority Configures the system LACP priority. Global
Configuration
lacp port-priority Configures the priority value for physical ports. Interface
Configuration
lacp timeout Assigns an administrative LACP timeout. Interface
Configuration
show lacp ethernet Displays LACP information for Ethernet ports. Privileged EXEC
show lacp port-channel
Displays LACP information for a port-channel.
Privileged EXEC
Command Group Description Access Mode
line Identifies a specific line for configuration and enters
the line configuration command mode. Global
Configuration
speed Configures the baud rate of the line. Line Configuration
autobaud Configures the line for automatic baud rate detection
(autobaud). Line Configuration
exec-timeout Configures the interval that the system waits until user
input is detected. Line Configuration
history Enables the command history function. Line Configuration
history size Configures the command history buffer size for a
particular line. Line Configuration
terminal history Enables the command history function for the current
terminal session. User EXEC
terminal history size Configures the command history buffer size for the
current terminal session. User EXEC
show line Displays line parameters. User EXEC
Command Group Description Access Mode
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line Identifies a specific line for configuration and enters
the Line Configuration command mode. Global Configura-
tion
speed Sets the line baud rate. Line Configuration
autobaud
Sets the line for automatic baud rate detection
Line Configuration
exec-timeout Configures the interval that the system waits until user
input is detected. Line Configuration
show line Displays line parameters. User EXEC
terminal history Enables the command history function for the current
terminal session. User EXEC
terminal history size Terminal history buffer size for the current terminal
session. User EXEC
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LLDP Commands
Command Group Description Access Mode
lldp enable (global) Enables Link Layer Discovery Protocol (LLDP). Global
configuration
lldp enable (interface) Enables LLDP on an interface. Interface
configuration
(Ethernet)
lldp timer Specifies how often the software sends LLDP updates. Global
configuration
lldp hold-multiplier Specifies the amount of time the receiving device should
hold a LLDP packet before discarding it. Global
configuration
lldp reinit-delay Specifies the minimum time an LLDP port will wait before
reinitializing LLDP transmission. Global
configuration
lldp tx-delay Specifies the delay between successive LLDP frame
transmissions initiated by value/status changes in the
LLDP local systems MIB.
Global
configuration
lldp optional-tlv Specifies which optional TLVs from the basic set should be
transmitted. Interface
configuration
(Ethernet)
lldp management-
address Specifies the management address that would be advertised
from an interface. Interface
configuration
(Ethernet)
lldp med enable Enables LLDP Media Endpoint Discovery (MED) on an
interface. Interface
configuration
(Ethernet)
lldp med network-
policy (global) Defines LLDP MED network policy. Global
configuration
lldp med network-
policy (interface) Attaches a LLDP MED network policy to a port. Interface
configuration
(Ethernet)
lldp med location Interface
configuration
(Ethernet)
clear lldp rx Restarts the LLDP RX state machine and clears the
neighbors table. Privileged
EXEC
show lldp configuration Displays the LLDP configuration. Privileged
EXEC
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Login Banner Commands
show lldp med
configuration Displays the Link Layer Discovery Protocol (LLDP)
Media Endpoint Discovery (MED) configuration. Privileged
EXEC
show lldp local Displays the Link Layer Discovery Protocol (LLDP)
information that is advertised from a specific port. Privileged
EXEC
show lldp neighbors Displays information about discovered neighboring
devices using Link Layer Discovery Protocol (LLDP) Privileged
EXEC
Command Group Description Access Mode
banner exec Specifies and enables a message to be displayed when
an EXEC process is created. Global Configura-
tion
banner login Enables a message to be displayed before the user-
name and password login prompts. Global Configura-
tion
banner motd Specifies and enables a message-of-the-day banner. Global Configura-
tion
exec-banner Enables the display of exec banners. Line Configuration
login-banner Enables the display of login banners. Line Configuration
motd-banner Enables the display of message-of-the-day banners. Line Configuration
show banner Displays the banners configuration. Privileged EXEC
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Management ACL Commands
PHY Diagnostics Commands
Power-over-Ethernet Commands
Command Group Description Access Mode
management access-list Defines a management access-list, and enters the
access-list for configuration. Global
Configuration
permit (Management) Defines a permit rule. Management
Access-level
deny (Management) Defines a deny rule. Management
Access-level
management access-class Defines which management access-list is used. Global
Configuration
show management access-
list Displays management access-lists. Privileged EXEC
show management access-
class Displays the active management access-list. Privileged EXEC
Command Group Description Access Mode
test copper-port tdr Diagnoses with TDR (Time Domain Reflectometry)
technology the quality and characteristics of a copper
cable attached to a port.
Privileged EXEC
show copper-ports tdr Displays the last TDR (Time Domain Reflectometry)
tests on specified ports. User EXEC
show copper-ports
cable-length Displays the estimated copper cable length attached to
a port. User EXEC
Command Group Description Access Mode
power inline Configures the administrative mode of the inline
power on an interface. Interface
Configuration
power inline powered-
device
Adds a description of the powered device type attached
to the interface.
Interface
Configuration
power inline priority Displays port monitoring status. Interface
Configuration
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Port Channel Commands
Port Monitor Commands
QoS Commands
power inline usage-
threshold Configures the administrative mode of the inline
power on an interface. Global Configuration
power inline traps
enable
Adds a description of the powered device type attached
to the interface.
Global Configuration
show power inline Displays port monitoring status. User EXEC
Command Group Description Access Mode
interface port-channel Enters the interface configuration mode of a specific
port-channel. Global
Configuration
interface range port-
channel Enters the interface configuration mode to configure
multiple port-channels. Global
Configuration
channel-group Associates a port with a port-channel. Interface
Configuration
show interfaces port-
channel Displays port-channel information. Privileged EXEC
Command Group Description Access Mode
port monitor Starts a port monitoring session. Interface
Configuration
show ports monitor Displays port monitoring status. User EXEC
Command Group Description Access Mode
qos Enables quality of service (QoS) on the device and
enters QoS basic mode. Global Configuration
show qos Displays the QoS status. User EXEC
priority-queue out num-
of-queues Configures the number of expedite queues. Global Configuration
traffic-shape Sets the shaper on an egress port. Interface
Configuration
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rate-limit (Ethernet) Limits the rate of the incoming traffic. Interface
Configuration
wrr-queue cos-map Maps assigned CoS values to select one of the egress
queues.
Global Configuration
show qos interface Displays interface QoS information. User EXEC
qos map dscp-queue Modifies the DSCP to CoS map. Global Configuration
qos trust (Global) Configures the system to basic mode and the "trust"
state. Global Configuration
qos cos Configures the default port CoS value. Interface
Configuration
show qos map Displays all the maps for QoS. User EXEC
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RADIUS Commands
RMON Commands
Command Group Description Access Mode
radius-server host Specifies a RADIUS server host. Global Configuration
radius-server key Sets the authentication and encryption key for all
RADIUS communications between the device and the
RADIUS daemon.
Global Configuration
radius-server retransmit Specifies the number of times the software searches
the list of RADIUS server hosts. Global Configuration
radius-server source-ip Specifies the source IP address used for
communication with RADIUS servers. Global Configuration
radius-server source-
ipv6 Specifies the source IPv6 address used for the IPv6
communication with RADIUS servers. Global Configuration
radius-server timeout Sets the interval for which a device waits for a server
host to reply. Global Configuration
radius-server deadtime Improves RADIUS response times when servers are
unavailable. Global Configuration
show radius-servers Displays the RADIUS server settings. Privileged EXEC
Command Group Description Mode
show rmon statistics Displays RMON Ethernet Statistics. User EXEC
rmon collection history Enables a Remote Monitoring (RMON) MIB history
statistics group on an interface. Interface
Configuration
show rmon collection
history Displays the requested history group configuration. User EXEC
show rmon history Displays RMON Ethernet statistics history. User EXEC
rmon alarm Configures alarm conditions. Global Configuration
show rmon alarm-table Displays the alarms table. User EXEC
show rmon alarm Displays alarm configurations. User EXEC
rmon event Configures a RMON event. Global Configuration
show rmon events Displays the RMON event table. User EXEC
show rmon log Displays the RMON logging table. User EXEC
rmon table-size Configures the maximum RMON tables sizes. Global Configuration
Command Groups 57
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SNMP Commands
Command Group Description Access Mode
snmp-server
community Sets up the community access string to permit access
to SNMP protocol. Global Configuration
snmp-server view Creates and modifies view entries. Global Configuration
snmp-server group Configures a new SNMP group or a table that maps
SNMP users to SNMP views. Global Configuration
snmp-server user Configures a new SNMP v3 user. Global Configuration
snmp-server engineID
local Specifies an SNMP EngineID on the local device. Global Configuration
snmp-server enable
traps Enables the device to send SNMP traps or SNMP
notifications. Global Configuration
snmp-server filter Creates and modifies filter entries. Global Configuration
snmp-server host Specifies an SNMP notification recipient. Global Configuration
snmp-server v3-host Specifies an SNMP v3 notification recipient. Global Configuration
snmp-server trap
authentication Enables the device to send Simple Network
Management Protocol traps when authentication
failed.
Global Configuration
snmp-server contact Sets up a system contact. Global Configuration
snmp-server location Sets up the information on where the device is
located. Global Configuration
snmp-server set Sets SNMP MIB value by the CLI. Global Configuration
show snmp Displays the SNMP status. Privileged EXEC
show snmp engineid Displays the local SNMP EngineID. Privileged EXEC
show snmp views Displays the configuration of SNMP views. Privileged EXEC
show snmp groups Displays the configuration of SNMP groups. Privileged EXEC
show snmp filters Displays the configuration of SNMP filters. Privileged EXEC
show snmp users Displays the configuration of SNMP users. Privileged EXEC
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Spanning Tree Commands
Command Group Description Access Mode
spanning-tree Enables Spanning Tree functionality. Global
Configuration
spanning-tree mode Configures the Spanning Tree protocol. Global
Configuration
spanning-tree forward-
time Configures the Spanning Tree bridge forward time. Global
Configuration
spanning-tree hello-
time Configures the Spanning Tree bridge Hello Time. Global
Configuration
spanning-tree max-age Configures the Spanning Tree bridge maximum age. Global
Configuration
spanning-tree priority Configures the Spanning Tree priority. Global
Configuration
spanning-tree disable Disables Spanning Tree on a specific port. Interface
Configuration
spanning-tree cost Configures the Spanning Tree path cost for a port. Interface
Configuration
spanning-tree port-
priority Configures port priority. Interface
Configuration
spanning-tree portfast Enables PortFast mode. Interface
Configuration
spanning-tree link-type
Overrides the default link-type setting
. Interface
Configuration
spanning-tree pathcost
method Sets the default path cost method. Global
Configuration
spanning-tree bpdu Defines bridge protocol data unit (BPDU) handling
when Spanning Tree is disabled on an interface. Global
Configuration
clear spanning-tree
detected-protocols Shutdowns an interface when it receives a BPDU. Interface
Configuration
clear spanning-tree
detected-protocols Restarts the protocol migration process on all
interfaces or on the specified interface. Privileged EXEC
spanning-tree mst
priority Configures the device priority for the specified
spanning-tree instance. Global
Configuration
spanning-tree mst max-
hops Configures the number of hops in an MST region
before the BDPU is discarded and the port information
is aged out.
Global
Configuration
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SSH Commands
spanning-tree mst port-
priority Configures the priority of a port. Interface
Configuration
spanning-tree mst cost Configures the path cost for multiple Spanning Tree
(MST) calculations. Interface
Configuration
spanning-tree mst
configuration Enables configuring an MST region by entering the
Multiple Spanning Tree (MST) mode. Global
Configuration
instance (mst) Maps VLANs to the MST instance. MST Configuration
name (mst) Defines the configuration name. MST Configuration
revision (mst) Defines the configuration revision number. MST Configuration
show (mst) Displays the current or pending MST region
configuration. MST Configuration
exit (mst) Exits the MST region configuration mode and applies
all configuration changes. MST Configuration
abort (mst) Exits the MST region configuration mode without
applying configuration changes. MST Configuration
show spanning-tree Displays Spanning Tree configuration. Privileged EXEC
spanning-tree guard
root Enables root guard on all the Spanning Tree instances
in the interface. Interface
Configuration
Command Group Description Access Mode
ip ssh port Specifies the port to be used by the SSH server. Global Configuration
ip ssh server Enables the device to be configured from a SSH
server. Global Configuration
crypto key generate dsa Generates DSA key pairs. Global Configuration
crypto key generate rsa Generates RSA key pairs. Global Configuration
ip ssh pubkey-auth Enables public key authentication for incoming SSH
sessions. Global Configuration
crypto key pubkey-
chain ssh Enters SSH Public Key-chain configuration mode. Global Configuration
user-key Specifies which SSH public key is manually
configured and enters the SSH public key-string
configuration command.
SSH Public Key
key-string Manually specifies a SSH public key. SSH Public Key
show ip ssh Displays the SSH server configuration. Privileged EXEC
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Syslog Commands
show crypto key
mypubkey Displays the SSH public keys stored on the device. Privileged EXEC
show crypto key
pubkey-chain ssh Displays SSH public keys stored on the device. Privileged EXEC
Command Group Description Access Mode
logging on Controls error messages logging. Global Configuration
logging Logs messages to a syslog server. Global Configuration
logging console Limits messages logged to the console based on
severity. Global Configuration
logging buffered Limits syslog messages displayed from an internal
buffer based on severity. Global Configuration
logging buffered size Changes the number of syslog messages stored in the
internal buffer. Global Configuration
clear logging Clears messages from the internal logging buffer. Privileged EXEC
logging file Limits syslog messages sent to the logging file based
on severity. Global Configuration
clear logging file Clears messages from the logging file. Privileged EXEC
aaa logging Enables logging AAA login events. Global Configuration
file-system logging Enables logging file system events. Global Configuration
management logging Enables logging management access list events. Global Configuration
show logging Displays the state of logging and the syslog messages
stored in the internal buffer. Privileged EXEC
show logging file Displays the state of logging and the syslog messages
stored in the logging file. Privileged EXEC
show syslog-servers Displays the syslog servers settings. Privileged EXEC
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System Management Commands
Command Group Description Access Mode
ping Sends ICMP echo request packets to another node on
the network. User EXEC
traceroute
Discovers the routes that packets will actually take
when traveling to their destination.
User EXEC
telnet
Logs in to a host that supports Telnet.
User EXEC
resume
Switches to another open Telnet session.
User EXEC
reload Reloads the operating system. Privileged EXEC
hostname Specifies or modifies the device host name. Global Configuration
stack master Forces selection of a stack master. Global Configuration
stack reload Reloads stack members. Privileged EXEC
show stack Displays information about stack status. User EXEC
show users Displays information about the active users. User EXEC
show sessions
Lists the open Telnet sessions.
User EXEC
show system Displays system information. User EXEC
show version Displays the system version information. User EXEC
asset-tag Specifies the device asset-tag. Global Configuration
show system id Displays the service ID information. User EXEC
show cpu utilization Displays information about the CPU utilization of
active processes. Privileged EXEC
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TACACS Commands
Command Group Description Mode
tacacs-server host Specifies a TACACS+ host. Global
Configuration
tacacs-server key Sets the authentication encryption key used for all
TACACS+ communications between the device and the
TACACS+ daemon.
Global
Configuration
tacacs-server source-ip Specifies the source IP address that will be used for the
communication with TACACS+ servers. Global
Configuration
tacacs-server timeout Sets the timeout value. Global
Configuration
show tacacs Displays configuration and statistics for a TACACS+
servers. Privileged EXEC
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TIC Commands
Command Group Description Access Mode
passwords min-length Sets the minimum length required for passwords in
the local database. Global
Configuration
password-aging Sets the expiration time of username and enables
passwords. Global
Configuration
passwords aging Configures the expiration time of line passwords in
the local database. Line Configuration
passwords history Sets the number of required password changes before
a password in the local database can be reused. Global
Configuration
passwords history hold-
time Configures the number of days a password is relevant
for tracking its password history. Global
Configuration
passwords lockout Sets the number of failed login attempts before a user
account is locked. Global
Configuration
aaa login-history file Enables writing to the login history file. Global
Configuration
set username active Reactivates a locked user account. Privileged EXEC
set line active Reactivates a locked line. Privileged EXEC
set enable-password active Reactivates a locked enable password. Privileged EXEC
show passwords
configuration Displays information about password management. Privileged EXEC
show users login-history Displays information about the login history of users. Privileged EXEC
show users accounts Displays information about the local user database. Privileged EXEC
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Tunnel Commands
User Interface Commands
Command Group Description Access Mode
interface tunnel enters tunnel interface configuration mode. Global Configura-
tion
tunnel mode ipv6ip configures an IPv6 transition mechanism global sup-
port mode. Interface Tunnel
Configuration
tunnel isatap router configures a global string that represents a specific
automatic tunnel router domain name. Interface Tunnel
Configuration
tunnel source sets the local (source) tunnel interface IPv4 address. Interface Tunnel
Configuration
tunnel isatap query-inter-
val configures the interval between DNS Queries (before
the IP address of the ISATAP router is known) for the
automatic tunnel router domain name.
Global Configura-
tion
tunnel isatap solicitation-
interval configures the interval between ISATAP router solici-
tations messages (when there is no active ISATAP
router).
Global Configura-
tion
tunnel isatap robustness configures the number of DNS Query/Router Solicita-
tion refresh messages that the device sends. Global Configura-
tion
show ipv6 tunnel displays information on the ISATAP tunnel. Privileged EXEC
Command Group Description Access Mode
enable Enters the privileged EXEC mode. User EXEC
disable Returns to User EXEC mode. Privileged EXEC
login Changes a login username. Priv/User EXEC
configure
Enables the global configuration mode.
Privileged EXEC
exit (Configuration) Exits any configuration mode to the next highest mode
in the CLI mode hierarchy. All
exit Closes an active terminal session by logging off the
device. Priv/User EXEC
end Ends the current configuration session and returns to
the Privileged EXEC mode. After Privileged
EXEC
help Displays a brief description of the help system. All
terminal datadump Enables dumping all output of a show command without
prompting. User EXEC
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VLAN Commands
show history Lists the commands entered in the current session. Privileged EXEC
show privilege Displays the current privilege level. User EXEC
Command Group Description Access Mode
vlan database Enters the VLAN database configuration mode. Global
Configuration
vlan Creates a VLAN. VLAN Database
interface vlan Enters the interface configuration (VLAN) mode. Global
Configuration
interface range vlan Enters the interface configuration mode to configure
multiple VLANs. Global
Configuration
name Configures a name to a VLAN. Interface (VLAN)
Configuration
switchport access vlan Configures the VLAN ID when the interface is in access
mode. Interface
Configuration
switchport trunk
allowed vlan Adds or removes VLANs from a port in general mode. Interface
Configuration
switchport trunk native
vlan Defines the port as a member of the specified VLAN,
and the VLAN ID is the "port default VLAN ID
(PVID)".
Interface
Configuration
switchport general
allowed vlan Adds or removes VLANs from a general port. Interface
Configuration
switchport general pvid Configures the PVID when the interface is in general
mode. Interface
Configuration
switchport general
ingress-filtering disable Disables port ingress filtering. Interface
Configuration
switchport general
acceptable-frame-type
tagged-only
Discards untagged frames at ingress. Interface
Configuration
switchport forbidden
vlan Forbids adding specific VLANs to a port. Interface
Configuration
switchport mode Configures the VLAN membership mode of a port Interface
Configuration
switchport customer
vlan
Set the port’s VLAN when the interface is in
customer mode.
Interface
Configuration
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Voice VLAN Commands
switchport protected Overrides the FDB (Forwarding Database) decision, and
sends all the Unicast, Multicast and Broadcast traffic to
an uplink port.
Interface
Configuration
map protocol protocols-
group Maps a protocol to a protocol group. Protocol groups are
used for protocol-based VLAN assignment. VLAN
Configuration
switchport general map
protocols-group vlan Sets a protocol-based classification rule. Interface
Configuration
ip internal-usage-vlan Reserves a VLAN as the internal usage VLAN of
an interface. Interface
Configuration
mac-to-vlan Adds MAC addresses to the MAC-to-VLAN database. VLAN
configuration
show vlan Displays the MAC-to-VLAN database. Privileged EXEC
show vlan Displays VLAN information. Privileged EXEC
show vlan protocols-
groups Displays protocols-groups information. Privileged EXEC
show vlan internal
usage Displays a list of VLANs used internally by the device. Privileged EXEC
show interfaces
switchport Displays switchport configuration. Privileged EXEC
Command Group Description Access Mode
voice vlan id Enables voice VLAN and configures voice VLAN ID. Global
Configuration
voice vlan oui-table Configures the voice OUI table. Global
Configuration
voice vlan cos Global
Configuration
voice vlan aging-timeout Sets the voice VLAN aging timeout. Global
Configuration
voice vlan enable Enables automatic voice VLAN configuration for a
port. Interface
configuration
(Ethernet, port-
channel)
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Web Server Commands
voice vlan secure Configures the secure mode for the voice VLAN. Interface
configuration
(Ethernet, port-
channel
show voice vlan Displays the voice VLAN status. EXEC mode
Command Group Description Access Mode
ip http server Enables the device to be configured from a browser. Global
Configuration
ip http port Specifies the TCP port for use by a web browser to
configure the device. Global
Configuration
ip http exec-timeout Sets the interval the system waits for user input before
automatically logging off. Global
Configuration
ip https server Enables configuring the device from a secured browser. Global
Configuration
ip https port Specifies the TCP port used by the server to configure
the device through the Web browser. Global
Configuration
ip https exec-timeout Sets the interval the system waits for user input before
automatically logging off. Global
Configuration
crypto certificate
generate Generates a self-signed HTTPS certificate. Global
Configuration
crypto certificate
request Generates and displays certificate requests for HTTPS. Privileged EXEC
crypto certificate import Imports a certificate signed by Certification Authority for
HTTPS. Global
Configuration
ip https certificate Configures the active certificate for HTTPS. Global
Configuration
show crypto certificate
mycertificate Displays the SSH certificates of the device. Privileged EXEC
show ip http Displays the HTTP server configuration. Privileged EXEC
show ip https Displays the HTTPS server configuration. Privileged EXEC
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802.1x Commands
Command Description Access Mode
aaa authentication
dot1x Specifies one or more authentication, authorization, and
accounting (AAA) methods for use on interfaces
running IEEE 802.1x.
Global
Configuration
dot1x system-auth-
control Enables 802.1x globally. Global
Configuration
dot1x port-control Enables manual control of the authorization state of the
port Interface
Configuration
dot1x re-authentication Enables periodic re-authentication of the client. Interface
Configuration
dot1x timeout re-
authperiod Sets the number of seconds between re-authentication
attempts. Interface
Configuration
dot1x re-authentication Manually initiates a re-authentication of all 802.1x-
enabled ports or the specified 802.1x-enabled port. Interface
Configuration
dot1x timeout quiet-
period Sets the number of seconds that the device remains in
the quiet state following a failed authentication
exchange.
Interface
Configuration
dot1x timeout tx-period Sets the number of seconds that the device waits for a
response to an Extensible Authentication Protocol
(EAP) - request/identity frame from the client, before
resending the request.
Interface
Configuration
dot1x max-req Sets the maximum number of times that the device sends
an EAP - request/identity frame to the client, before
restarting the authentication process.
Interface
Configuration
dot1x timeout supp-
timeout Sets the time for the retransmission of an Extensible
Authentication Protocol (EAP)-request frame to the
client.
Interface
Configuration
dot1x timeout server-
timeout Sets the time for the retransmission of packets to the
authentication server. Interface
Configuration
show dot1x Allows multiple hosts on an 802.1x-authorized port that
has the dot1x port-control interface configuration com-
mand set to auto.
Privileged EXEC
show dot1x users Displays active 802.1x authenticated users.
Privileged EXEC
show dot1x statistics Displays 802.1x statistics for the specified interface. Privileged EXEC
dot1x auth-not-req Enables unauthorized users access to that VLAN. Interface (VLAN)
Configuration
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dot1x multiple-hosts Allows multiple hosts (clients) on an 802.1x-authorized
port that has the dot1x port-control Interface
Configuration mode command set to auto.
Interface
Configuration
dot1x single-host-
violation Configures the action to be taken, when a station whose
MAC address is not the supplicant MAC address,
attempts to access the interface.
Interface
Configuration
dot1x guest-vlan Defines a guest VLAN. Interface
Configuration
dot1x guest-vlan enable Enables unauthorized users on the interface to access the
guest VLAN. Interface
Configuration
dot1x mac-
authentication Enables authentication based on the station’s MAC
address. Interface
Configuration
dot1x traps mac-
authentication failure Enables sending traps when a MAC address was failed
in authentication of the 802.1X MAC authentication
access control.
Global
Configuration
dot1x radius-attributes
vlan Enables user-based VLAN assignment. Interface
Configuration
show dot1x advanced Displays 802.1x advanced features for the device or for
the specified interface. Privileged EXEC
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Command Modes 71
3
Command Modes
GC (Global Configuration) Mode
Command Group Description
aaa authentication dot1x Specifies one or more authentication, authorization, and accounting
(AAA) methods for use on interfaces running IEEE 802.1x.
aaa authentication enable Defines authentication method lists for accessing higher privilege
levels.
aaa authentication login Defines login authentication.
aaa logging Enables logging AAA login events.
aaa login-history file Enables writing to the login history file.
arp Adds a permanent entry in the ARP cache.
arp timeout Configures how long an entry remains in the ARP cache.
asset-tag Specifies the device asset-tag.
bridge aging-time Sets the Address Table aging time.
bridge multicast filtering Enables filtering of Multicast addresses.
clock source Configures an external time source for the system clock.
clock summer-time Configures the system to automatically switch to summer time (daylight
saving time).
clock timezone Sets the time zone for display purposes
crypto certificate generate Generates a self-signed HTTPS certificate.
crypto certificate import Imports a certificate signed by Certification Authority for HTTPS.
crypto certificate request Generates and displays certificate requests for HTTPS.
crypto key generate dsa Generates DSA key pairs.
crypto key generate rsa Generates RSA key pairs.
crypto key pubkey-chain ssh Enters SSH Public Key-chain configuration mode.
dot1x system-auth-control Enables 802.1x globally.
dot1x traps mac-authentication
failure Enables sending traps when a MAC address was failed in authentication
of the 802.1X MAC authentication access control.
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enable password Sets a local password to control access to normal and privilege levels.
end Ends the current configuration session and returns to the previous
command mode.
file-system logging Enables logging file system events.
gvrp enable (Global) Enables GVRP globally.
hostname Specifies or modifies the device host name.
interface ethernet Enters the interface configuration mode to configure an Ethernet type
interface.
interface port-channel Enters the interface configuration mode of a specific port-channel.
interface range ethernet Enters the interface configuration mode to configure multiple ethernet
type interfaces.
interface range port-channel Enters the interface configuration mode to configure multiple port-
channels.
interface range vlan Enters the interface configuration mode to configure multiple VLANs.
interface vlan Enters the interface configuration (VLAN) mode.
ip access-list Creates Layer 2 ACLs.
ip access-list Creates Layer 2 ACLs.
ip address
Sets an IP address.
ip default-gateway Defines a default gateway.
ip dhcp snooping Globally enables DHCP snooping.
ip dhcp snooping database Configures the DHCP snooping binding file.
ip dhcp snooping database
update-freq Configures the update frequency of the DHCP snooping binding file.
ip dhcp snooping information
option allowed-untrusted Configures a switch to accept DHCP packets with option-82
information from an untrusted port.
ip dhcp snooping trust Configures a port as trusted for DHCP snooping purposes.
ip dhcp snooping verify Configures a switch to accept DHCP packets with option-82
information from an untrusted port.
ip dhcp snooping vlan Enables DHCP snooping on a VLAN.
ip domain-lookup Enables the IP Domain Naming System (DNS)-based host name-to-
address translation.
ip domain-name Defines a default domain name, that the software uses to complete
unqualified host names.
ip host Defines static host name-to-address mapping in the host cache.
ip http authentication Specifies authentication methods for HTTP server users.
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ip http exec-timeout Enables the device to be configured from a secured browser.
ip http port Specifies the TCP port for use by a web browser to configure the
device.
ip http server Enables the device to be configured from a browser.
ip https authentication Specifies authentication methods for HTTPS server users.
ip https certificate Configures the active certificate for HTTPS.
ip https exec-timeout Sets the interval the system waits for user input before automatically
logging off.
ip https port Configures a TCP port for use by a secure web browser to configure the
device.
ip https server Enables configuring the device from a secured browser.
ip igmp snooping (Global) Enables Internet Group Management Protocol (IGMP) snooping.
ip name-server Sets the available name servers.
ip ssh port Specifies the port to be used by the SSH server.
ip ssh pubkey-auth Enables public key authentication for incoming SSH sessions.
ip ssh server Enables the device to be configured from a SSH server.
lacp system-priority Configures the system LACP priority.
line Identifies a specific line for configuration and enters the line
configuration command mode.
logging Logs messages to a syslog server.
logging buffered Limits syslog messages displayed from an internal buffer based on
severity.
logging buffered size Changes the number of syslog messages stored in the internal buffer.
logging console Limits messages logged to the console based on severity.
logging file Limits syslog messages sent to the logging file based on severity.
logging on Controls error messages logging.
mac access-list Creates Layer 2 ACLs.
management access-class Defines which management access-list is used.
management access-list Defines a management access-list, and enters the access-list for
configuration.
management logging Enables logging management access list events.
password min-length Sets the minimum required length for passwords in the local database.
password-aging Sets the expiration time for passwords in the local database.
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passwords history
Sets the number of required password changes before a password in the
local database can be reused.
passwords history hold-time Sets the number of days a password is relevant for tracking its password
history.
passwords lockout
Sets the number of failed login attempts before a user account is locked.
power inline traps enable
Adds a description of the powered device type attached to the interface.
power inline usage-threshold Configures the administrative mode of the inline power on an interface.
priority-queue out num-of-
queues Enables the egress queues to be SP queues.
qos Enables Quality of Service (QoS) on the device and enters QoS basic or
advance mode.
qos map dscp-queue Modifies the DSCP to CoS map.
qos trust (Global) Configure the system to "trust" state.
radius-server deadtime Improves RADIUS response times when servers are unavailable.
radius-server host Specifies a RADIUS server host.
radius-server key Sets the authentication and encryption key for all RADIUS
communications between the device and the RADIUS daemon.
radius-server retransmit Specifies the number of times the software searches the list of RADIUS
server hosts.
radius-server source-ip Specifies the source IP address used for communication with RADIUS
servers.
radius-server source-ipv6 Specifies the source IPv6 address used for the IPv6 communication
with RADIUS servers.
radius-server timeout Sets the interval for which a device waits for a server host to reply.
rmon alarm Configures alarm conditions.
rmon event Configures a RMON event.
rmon table-size Configures the maximum RMON tables sizes.
rmon table-size Configures the maximum RMON tables sizes.
show cpu utilization Enables measuring CPU utilization.
show users Changes the unit ID of a specific unit.
snmp-server community Sets up the community access string to permit access to SNMP
protocol.
snmp-server contact Sets up a system contact.
snmp-server enable traps Enables the device to send SNMP traps or SNMP notifications.
snmp-server engineID local Specifies an SNMP EngineID on the local device.
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snmp-server filter Creates and modifies filter entries.
snmp-server group Configures a new SNMP group or a table that maps SNMP users to
SNMP views.
snmp-server host Specifies the recipient of Simple Network Management Protocol
notification operation.
snmp-server location Sets up the information on where the device is located.
snmp-server set Sets SNMP MIB value by the CLI.
snmp-server trap authentication Enables the device to send Simple Network Management Protocol traps
when authentication failed.
snmp-server user Configures a new SNMP v3 user.
snmp-server v3-host Specifies an SNMP v3 notification recipient.
snmp-server view Creates and modifies view entries.
sntp anycast client enable Enables Anycast clients.
sntp authenticate
Grants authentication for received Simple Network Time Protocol (SNTP)
traffic from servers.
sntp authentication-key
Defines an authentication key for Simple Network Time Protocol (SNTP).
sntp broadcast client enable Enables the Simple Network Time Protocol (SNTP) Broadcast clients.
sntp client enable
Enables the Simple Network Time Protocol (SNTP) Broadcast and
Anycast client on an interface.
sntp client poll timer Sets the polling time for the Simple Network Time Protocol (SNTP)
client.
sntp server Configures the device to use the Simple Network Time Protocol
(SNTP) to request and accept Simple Network Time Protocol (SNTP)
traffic from a server.
sntp trusted-key Authenticates the identity of a system to which Simple Network Time
Protocol (SNTP) will synchronize.
sntp unicast client enable Enables the device to use the Simple Network Time Protocol (SNTP) to
request and accept Simple Network Time Protocol (SNTP) traffic from
servers.
sntp unicast client poll Enables polling for the Simple Network Time Protocol (SNTP)
predefined Unicast clients.
spanning-tree Enables Spanning Tree functionality.
spanning-tree bpdu Defines BPDU handling when Spanning Tree is disabled on an
interface.
spanning-tree forward-time Configures the Spanning Tree bridge forward time.
spanning-tree hello-time Configures the Spanning Tree bridge Hello Time.
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spanning-tree max-age Configures the Spanning Tree bridge maximum age.
spanning-tree mode Configures the Spanning Tree protocol.
spanning-tree mst
configuration Enables configuring an MST region by entering the Multiple Spanning
Tree (MST) mode.
spanning-tree mst max-hops Configures the number of hops in an MST region before the BDPU is
discarded and the port information is aged out.
spanning-tree mst priority Configures the device priority for the specified spanning-tree instance.
spanning-tree pathcost method Sets the default pathcost method.
spanning-tree priority Configures the Spanning Tree priority.
stack master Forces selection of a stack master.
tacacs-server host Specifies a TACACS+ host.
tacacs-server key Sets the authentication encryption key used for all TACACS+
communications between the device and the TACACS+ daemon.
tacacs-server source-ip Specifies the source IP address that will be used for the communication
with TACACS+ servers.
tacacs-server timeout Sets the timeout value.
username Establishes a username-based authentication system.
vlan database Enters the VLAN database configuration mode.
wrr-queue cos-map Maps CoS values to a specific egress queue.
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IC (Interface Configuration) Mode
Command Group Description
back-pressure Enables Back Pressure on a given interface.
bridge multicast forbidden
forward-all Forbids a port from becoming a forward-all Multicast port.
bridge multicast forward-all Enables forwarding all Multicast frames on a port.
bridge multicast unregistered Configures the forwarding state of unregistered multicast addresses.
channel-group Associates a port with a Port-channel.
description Adds a description to an interface.
dot1x guest-vlan Defines a guest VLAN.
dot1x guest-vlan enable Enables unauthorized users on the interface to access the guest VLAN.
dot1x mac-authentication Enables authentication based on the station’s MAC address.
dot1x max-req Sets the maximum number of times that the device sends an EAP -
request/identity frame to the client, before restarting the authentication
process.
dot1x multiple-hosts Allows multiple hosts (clients) on an 802.1x-authorized port, that has
the dot1x port-control Interface Configuration mode command set to
auto.
dot1x port-control Enables manual control of the authorization state of the port
dot1x radius-attributes vlan Enables user-based VLAN assignment.
dot1x re-authentication Enables periodic re-authentication of the client.
dot1x single-host-violation Configures the action to be taken, when a station whose MAC address is
not the supplicant MAC address, attempts to access the interface.
dot1x timeout quiet-period Sets the number of seconds that the device remains in the quiet state
following a failed authentication exchange.
dot1x timeout re-authperiod Sets the number of seconds between re-authentication attempts.
dot1x timeout server-timeout Sets the time for the retransmission of packets to the authentication
server.
dot1x timeout supp-timeout Sets the time for the retransmission of an EAP-request frame to the
client.
dot1x timeout tx-period Sets the number of seconds that the device waits for a response to an
Extensible Authentication Protocol (EAP) - request/identity frame, from
the client, before resending the request.
duplex Configures the full/half duplex operation of a given ethernet interface
when not using auto-negotiation.
flowcontrol Configures the Flow Control on a given interface.
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garp timer Adjusts the GARP application join, leave, and leaveall GARP timer
values.
gvrp enable (Interface) Enables GVRP on an interface.
gvrp registration-forbid De-registers all VLANs, and prevents dynamic VLAN registration on
the port.
gvrp vlan-creation-forbid Enables or disables dynamic VLAN creation.
ip address Sets an IP address.
ip address dhcp Acquires an IP address on an interface from the DHCP server.
ip internal-usage-vlan Reserves a VLAN as the internal usage VLAN of an interface.
ipv6 default-gateway Defines an IPv6 default gateway.
ipv6 mld join-group Configures Multicast Listener Discovery (MLD) reporting for a
specified group.
ipv6 mld version Changes the Multicast Listener Discovery Protocol (MLD) version.
lacp port-priority Configures the priority value for physical ports.
lacp timeout Assigns an administrative LACP timeout.
mdix Enables automatic crossover on a given interface.
name Configures a name to a VLAN.
negotiation Enables auto-negotiation operation for the speed and duplex parameters
of a given interface.
port monitor Starts a port monitoring session.
port security Disables new address learning/forwarding on an interface.
port security max Configures the maximum number of addresses that may be learned on
the port while the port is in port security mode.
port security mode Configures the port security learning mode.
port security routed secure-
address Adds MAC-layer secure addresses to a routed port.
port storm-control broadcast
enable Enables Broadcast storm control.
port storm-control broadcast
rate Configures the maximum Broadcast rate.
port storm-control include-
multicast Enables the device to count Multicast packets.
power inline Configures the administrative mode of the inline power on an interface.
power inline powered-device
Adds a description of the powered device type attached to the interface.
power inline priority Displays port monitoring status
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qos cos Configures the default port CoS value.
qos cos Configures the default port CoS value.
qos cos Enables each port trust state.
qos cos Enables each port trust state while the system is in basic mode.
rate-limit (Ethernet) Limits the rate of the incoming traffic.
rmon collection history Enables a Remote Monitoring (RMON) MIB history statistics group on
an interface.
rmon collection history Enables a Remote Monitoring (RMON) MIB history statistics group on
an interface.
service-acl Sets the default ace action to permit or deny.
show ports monitor Transmits tagged ingress mirrored packets.
shutdown Disables interfaces.
sntp client enable (Interface) Enables the Simple Network Time Protocol (SNTP) client on an
interface.
clear spanning-tree detected-
protocols Shutsdown an interface when it receives a bridge protocol data unit
(BPDU).
spanning-tree cost Configures the Spanning Tree path cost for a port.
spanning-tree disable Disables Spanning Tree on a specific port.
spanning-tree guard root Enables root guard on all the Spanning Tree instances in the interface.
spanning-tree link-type Overrides the default link-type setting.
spanning-tree mst cost Configures the path cost for multiple Spanning Tree (MST) calculations.
spanning-tree mst port-priority Configures the priority of a port.
spanning-tree portfast Enables PortFast mode.
spanning-tree port-priority Configures port priority.
speed Configures the speed of a given Ethernet interface when not using auto-
negotiation.
switchport access vlan Configures the VLAN ID when the interface is in access mode.
switchport access vlan Defines the primary PVLAN.
switchport customer vlan
Set the port’s VLAN when the interface is in customer mode.
switchport forbidden vlan Forbids adding specific VLANs to a port.
switchport general acceptable-
frame-type tagged-only Discards untagged frames at ingress.
switchport general allowed
vlan Adds or removes VLANs from a general port.
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LC (Line Configuration) Mode
MA (Management Access-level) Mode
switchport general ingress-
filtering disable Disables port ingress filtering.
switchport general map
protocols-group vlan Sets a protocol-based classification rule.
switchport general pvid Configures the PVID when the interface is in general mode.
switchport mode Configures the VLAN membership mode of a port
switchport protected Overrides the FDB (Forwarding Database) decision, and sends all the
Unicast, Multicast and Broadcast traffic to an uplink port.
switchport trunk allowed vlan Adds or removes VLANs from a port in general mode.
switchport trunk native vlan Defines the port as a member of the specified VLAN, and the VLAN ID
is the "port default VLAN ID (PVID)".
traffic-shape Sets the shaper on an egress port.
Command Group Description
autobaud Configures the line for automatic baud rate detection (autobaud)
enable authentication Specifies the authentication method list when accessing a higher
privilege level from a remote telnet or console.
exec-timeout Configures the interval that the system waits until user input is detected.
history Enables the command history function.
history size Configures the command history buffer size for a particular line.
login authentication Specifies the login authentication method list for a remote telnet or
console.
password Specifies a password on a line.
password-aging Sets the expiration time of line passwords in the local database.
speed Configures the baud rate of the line.
Command Group Description
deny (Management) Defines a deny rule.
permit (Management) Defines a permit rule.
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MC (MST Configuration) Mode
ML (MAC Access-List) Mode
PE (Privileged EXEC) Mode
Command Group Description
abort (mst) Exits the MST region configuration mode without applying
configuration changes.
exit (mst) Exits the MST region configuration mode and applies all configuration
changes.
instance (mst) Maps VLANs to the MST instance.
name (mst) Defines the configuration name.
revision (mst) Defines the configuration revision number.
show (mst) Displays the current or pending MST region configuration.
Command Group Description
permit (MAC) Denies traffic if the conditions defined in the permit statement match.
Command Group Description
boot system Specifies the system image that the device loads at startup.
clear arp-cache Deletes all dynamic entries from the ARP cache.
clear bridge Removes any learned entries from the forwarding database.
clear counters Clears statistics on an interface.
clear gvrp statistics Clears all the GVRP statistics information.
clear host Deletes entries from the host name-to-address cache.
clear host dhcp Deletes entries from the host name-to-address mapping received from
Dynamic Host Configuration Protocol (DHCP).
clear ip dhcp snooping
database Clears the DHCP snooping binding database.
clear logging Clears messages from the internal logging buffer.
clear logging file Clears messages from the logging file.
clear spanning-tree detected-
protocols Restarts the protocol migration process on all interfaces or on the
specified interface.
clock set Manually sets the system clock.
configure Enters the Global Configuration mode.
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copy Copies files from a source to a destination.
crypto certificate request Generates and displays certificate requests for HTTPS.
delete Deletes a file from a Flash memory device.
delete startup-config Deletes the startup-config file.
dir Displays a list of files on a flash file system.
disable Returns to User EXEC mode.
dot1x re-authentication Manually initiates a re-authentication of all 802.1x-enabled ports or the
specified 802.1x-enabled port.
exit Closes an active terminal session by logging off the device.
ip dhcp snooping binding Configures the update frequency of the DHCP snooping binding file.
login Changes a login username.
more Displays a file.
reload Reloads the operating system.
rename Renames a file.
set enable-password active Reactivates a locked local password.
set interface active Reactivates an interface that was suspended by the system.
set line active Reactivates a locked line.
set username active
Reactivates a locked user account.
show access-lists Displays ACLs defined on the device.
show arp Displays entries in the ARP table.
show authentication methods Displays information about the authentication methods.
show bootvar Displays the active system image file that the device loads at startup
show bridge address-table Displays all entries in the bridge-forwarding database.
show bridge address-table
count Displays the number of addresses present in all VLANs or at specific
VLAN.
show bridge address-table
static
Displays statically created entries in the bridge-forwarding database
.
show bridge multicast address-
table Displays Multicast MAC or IP Address Table information.
show bridge multicast address-
table static Displays the statically configured multicast addresses.
show bridge multicast filtering Displays the Multicast filtering configuration.
show cpu utilization Enables measuring CPU utilization.
show cpu utilization Displays information about the CPU utilization of active processes.
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show crypto certificate
mycertificate Displays the SSH certificates of the device.
show crypto key mypubkey Displays the SSH public keys stored on the device.
show crypto key pubkey-chain
ssh Displays SSH public keys stored on the device.
show dot1x Displays 802.1x status for the device or for the specified interface.
show dot1x advanced Displays 802.1x enhanced features for the device or for the specified
interface.
show dot1x statistics Displays 802.1x statistics for the specified interface.
show dot1x users Displays 802.1x users for the device.
show history Lists the commands entered in the current session.
show hosts Displays the default domain name, a list of name server hosts, the static
and the cached list of host names and addresses.
show interfaces access-lists Displays access lists applied on interfaces.
show interfaces advertise Displays auto negotiation advertisement data.
show interfaces configuration Displays the configuration for all interfaces.
show interfaces counters Displays traffic seen by the physical interface.
show interfaces description Displays the description for all interfaces.
show interfaces port-channel Displays Port-channel information.
show interfaces status Displays the status for all interfaces.
show interfaces switchport Displays switchport configuration.
show ip http Displays the HTTP server configuration.
show ip https Displays the HTTPS server configuration.
show ip interface Displays the usability status of interfaces configured for IP.
show ip ssh Displays the SSH server configuration.
show logging Displays the state of logging and the syslog messages stored in the
internal buffer.
show logging file Displays the state of logging and the syslog messages stored in the
logging file.
show management access-
class Displays the active management access-list.
show management access-list Displays management access-lists.
show passwords configuration Displays information about password management.
show ports security Displays the port-lock status.
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SP (SSH Public Key) Mode
show ports security addresses Displays current dynamic addresses in locked ports.
show ports storm-control Displays the storm control configuration.
show radius-servers Displays the RADIUS server settings.
show running-config Displays the contents of the currently running configuration file.
show snmp Displays the SNMP status.
show snmp engineid Displays the local SNMP EngineID.
show snmp filters Displays the configuration of SNMP filters.
show snmp groups Displays the configuration of SNMP groups.
show snmp users Displays the configuration of SNMP users.
show snmp views Displays the configuration of SNMP views.
show sntp configuration Shows the configuration of the Simple Network Time Protocol (SNTP).
show sntp status Shows the status of the Simple Network Time Protocol (SNTP).
show spanning-tree Displays Spanning Tree configuration.
show startup-config Displays the startup configuration file contents.
show syslog-servers Displays the syslog servers settings.
show tacacs Displays configuration and statistics for a TACACS+ servers.
show users accounts Displays information about the local user database.
show users login-history Displays information about the login history of users.
show vlan Displays VLAN information.
show vlan internal usage Displays a list of VLANs used internally by the device.
show vlan Displays the MAC-to-VLAN database.
show vlan protocols-groups Displays protocols-groups information.
stack reload Reloads stack members.
test copper-port tdr Diagnoses with TDR (Time Domain Reflectometry) technology the
quality and characteristics of a copper cable attached to a port.
Command Group Description
key-string Manually specifies a SSH public key.
user-key Specifies which SSH public key is manually configured and enters the
SSH public key-string configuration command.
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UE (User EXEC) Mode
Command Group Description
enable Enters the Privileged EXEC mode.
exit Closes an active terminal session by logging off the device.
login Changes a login username.
ping Sends ICMP echo request packets to another node on the network.
resume
Switches to another open Telnet session.
show clock Displays the time and date from the system clock.
show copper-ports cable-
length Displays the estimated copper cable length attached to a port.
show copper-ports tdr Displays the last TDR (Time Domain Reflectometry) tests on specified
ports.
show gvrp configuration Displays GVRP configuration information.
show gvrp error-statistics Displays GVRP error statistics.
show gvrp statistics Displays GVRP statistics.
show history Lists the commands entered in the current session.
show ip dhcp snooping Displays the DHCP snooping configuration.
show ip dhcp snooping
binding
Displays the DHCP snooping binding database and configuration
information for all interfaces on a switch.
show ip igmp snooping
groups Displays Multicast groups learned by IGMP snooping.
show ip igmp snooping
interface Displays IGMP snooping configuration.
show ip igmp snooping
mrouter Enables automatic learning of Multicast switch ports in the context of a
specific VLAN.
show ip igmp snooping
mrouter Displays information on dynamically learned Multicast router
interfaces.
show lacp ethernet Displays LACP information for Ethernet ports.
show lacp port-channel Displays LACP information for a port-channel.
show line Displays line parameters.
show ports monitor Displays port monitoring status
show power inline Displays information about inline power.
show privilege Displays the current privilege level.
show qos Displays the QoS status.
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show qos interface Displays interface QoS information.
show qos map Displays all the maps for QoS.
show rmon alarm Displays alarm configurations.
show rmon alarm-table Displays the alarms table.
show rmon collection history Displays the requested history group configuration.
show rmon events Displays the RMON event table.
show rmon history Displays RMON Ethernet Statistics history.
show rmon log Displays the RMON logging table.
show rmon statistics Displays RMON Ethernet Statistics.
show sessions
Lists the open Telnet sessions.
show stack Displays information about stack status.
show system Displays system information.
show system id Displays the service id information.
show users Displays information about the active users.
show version Displays the system version information.
telnet Sends ICMP echo request packets to another node on the network.
terminal datadump Enables dumping all output of a show command without prompting.
terminal history Enables the command history function for the current terminal session.
terminal history size Configures the command history buffer size for the current
terminal session.
traceroute
Discovers the routes that packets will actually take when traveling to their
destination.
traffic-shape Assigns CoS values to select one of the egress queues.
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VC (VLAN Configuration) Mode
Command Group Description
bridge address Adds a static MAC-layer station source address to the bridge table.
bridge multicast address Registers MAC-layer Multicast addresses to the bridge table, and adds
static ports to the group.
bridge multicast forbidden
address Forbids adding a specific Multicast address to specific ports.
bridge multicast forbidden
forward-all Forbids a port from becoming a forward-all Multicast port.
bridge multicast forward-all Enables forwarding of all Multicast frames on a port.
dot1x auth-not-req Enables unauthorized users access to that VLAN.
ip igmp snooping (Interface) Enables Internet Group Management Protocol (IGMP) snooping on a
specific VLAN.
ip igmp snooping host-time-out Configures the host-time-out.
ip igmp snooping leave-time-
out Configures the leave-time-out.
ip igmp snooping mrouter Enables automatic learning of Multicast router ports.
ip igmp snooping mrouter-
time-out Configures the mrouter-time-out.
ip igmp snooping querier
address Defines the source IP address that the IGMP Snooping querier uses.
ip igmp snooping querier
enable Enables Internet Group Management Protocol (IGMP) querier on a
specific VLAN.
ip internal-usage-vlan Reserves a VLAN as the internal usage VLAN of an interface.
mac-to-vlan Adds MAC addresses to the MAC-to-VLAN database.
name Configures a name to a VLAN.
vlan Creates a VLAN.
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IPAL (IP-Access List Configuration) Mode
Command Group Description
deny (IP) Denies traffic if the conditions defined in the deny statement match.
permit (IP) Permits traffic if the conditions defined in the permit statement match.
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MAL (MAC-Access List Configuration) Mode
Command Group Description
deny (MAC) Denies traffic if the conditions defined in the deny statement match.
permit (MAC) Set permit conditions for a MAC access list.
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AAA Commands 91
4
AAA Commands
aaa authentication login
The aaa authentication login Global Configuration mode command defines login authentication.
Use the no form of this command to return to the default configuration.
Syntax
•
aaa authentication login
{
default
|
list-name
}
method1
[
method2
...]
•
no aaa authentication login
{
default
|
list-name
}
•
default
— Uses the listed authentication methods that follow this argument as the default
list of methods when a user logs in.
•
list-name
— Character string used to name the list of authentication methods activated when
a user logs in. (Range: 1 - 12 characters)
•
method1
[
method2
...] — Specify at least one from the following table:
Default Configuration
The local user database is checked. This has the same effect as the command
aaa authentication
login default local
.
NOTE: On the console, login succeeds without any authentication check if the authentication method is
not defined.
Command Mode
Global Configuration mode.
Keyword Description
enable Uses the enable password for authentication.
line Uses the line password for authentication.
local Uses the local username database for authentication.
none Uses no authentication.
radius Uses the list of all RADIUS servers for authentication.
tacacs Uses the list of all TACACS+ servers for authentication.
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User Guidelines
• The default and optional list names created with the
aaa authentication login
command are
used with the
login authentication
command.
• Create a list by entering the
aaa authentication login
list-name method
command for a
particular protocol, where
list-name
is any character string used to name this list. The
method
argument identifies the list of methods that the authentication algorithm tries, in the given
sequence.
• The additional methods of authentication are used only if the previous method returns an error,
not if it fails. To ensure that the authentication succeeds even if all methods return an error,
specify
none
as the final method in the command line.
Example
The following example configures the authentication login, so that user authentication is performed
as follows: Authentication is attempted at the RADIUS server. If the RADIUS server is not
available, authentication is attempted at the local user database. If there is no database, then no
authentication is performed.
aaa authentication enable
The aaa authentication enable Global Configuration mode command defines authentication
method lists for accessing higher privilege levels. Use the no form of this command to return to the
default configuration.
Syntax
•
aaa authentication enable
{
default
|
list-name
}
method1
[
method2
...]
•
no aaa authentication enable
{
default
|
list-name
}
•
default
— Uses the listed authentication methods that follow this argument as the default
list of methods, when using higher privilege levels.
•
list-name
— Character string used to name the list of authentication methods activated,
when using access higher privilege levels. (Range: 1 - 12 characters)
•
method1
[
method2
...] — Specify at least one from the following table:
Console(config)# aaa authentication login radius local none
Keyword Description
enable Uses the enable password for authentication.
line Uses the line password for authentication.
none Uses no authentication.
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Default Configuration
If the
default
list is not set, only the enable password is checked. This has the same effect as the
command
aaa authentication enable default enable
.
On the console, the enable password is used if it exists. If no password is set, the process still
succeeds. This has the same effect as using the command
aaa authentication enable default
enable none
.
Command Mode
Global Configuration mode.
User Guidelines
• The default and optional list names created with the
aaa authentication enable
command are
used with the
enable authentication
command.
• The additional methods of authentication are used only if the previous method returns an error,
not if it fails. To ensure that the authentication succeeds even if all methods return an error,
specify
none
as the final method in the command line.
• All
aaa authentication enable default
requests sent by the device to a RADIUS or TACACS+
server include the username $enabx$., where x is the requested privilege level.
Example
The following example sets the enable password for authentication when accessing higher privilege
levels.
login authentication
The login authentication Line Configuration mode command specifies the login authentication
method list for a remote telnet or console. Use the no form of this command to return to the default
configuration specified by the aaa authentication login command.
radius Uses the list of all RADIUS servers for authentication. Uses username
$enabx$., where x is the privilege level.
tacacs Uses the list of all TACACS+ servers for authentication. Uses username
"$enabx$." where x is the privilege level.
Console(config)# aaa authentication enable default enable
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Syntax
•
login authentication
{
default
|
list-name
}
•
no login authentication
•
default
— Uses the default list created with the
aaa authentication login
command.
•
list-name
— Uses the indicated list created with the
aaa authentication login
command.
Default Configuration
Uses the default set with the command
aaa authentication login
.
Command Mode
Line Configuration mode.
User Guidelines
• Changing login authentication from default to another value may disconnect the telnet session.
Example
The following example specifies the default authentication method for a console.
enable authentication
The enable authentication Line Configuration mode command specifies the authentication
method list when accessing a higher privilege level from a remote telnet or console. Use the no
form of this command to return to the default configuration specified by the aaa authentication
enable command.
Syntax
•
enable authentication
{
default
|
list-name
}
•
no enable authentication
•
default
— Uses the default list created with the
aaa authentication enable
command.
•
list-name
— Uses the indicated list created with the
aaa authentication enable
command.
Default Configuration
Uses the default set with the
aaa authentication enable
command.
Command Mode
Line Configuration mode.
Console(config)# line console
Console(config-line)# login authentication default
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User Guidelines
There are no user guidelines for this command.
Example
The following example specifies the default authentication method when accessing a higher
privilege level from a console.
ip http authentication
The ip http authentication Global Configuration mode command specifies authentication
methods for HTTP server users. Use the no form of this command to return to the default
configuration.
Syntax
•
ip http authentication
method1
[
method2
...]
•
no ip http authentication
•
method1
[
method2
...] — Specify at least one from the following table:
Default Configuration
The local user database is checked. This has the same effect as the command
ip http
authentication local
.
Command Mode
Global Configuration mode.
User Guidelines
• The additional methods of authentication are used only if the previous method returns an error,
not if it fails. To ensure that the authentication succeeds even if all methods return an error,
specify
none
as the final method in the command line.
Console(config)# line console
Console(config-line)# enable authentication default
Keyword Description
local Uses the local username database for authentication.
none Uses no authentication.
radius Uses the list of all RADIUS servers for authentication.
tacacs Uses the list of all TACACS+ servers for authentication.
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Example
The following example configures the HTTP authentication.
ip https authentication
The ip https authentication Global Configuration mode command specifies authentication
methods for HTTPS server users. Use the no form of this command to return to the default
configuration.
Syntax
•
ip https authentication
method1
[
method2
...]
•
no ip https authentication
•
method1
[
method2
...] — Specify at least one from the following table:
Default Configuration
The local user database is checked. This has the same effect as the command
ip https
authentication local
.
Command Mode
Global Configuration mode.
User Guidelines
• The additional methods of authentication are used only if the previous method returns an error,
not if it fails. To ensure that the authentication succeeds even if all methods return an error,
specify
none
as the final method in the command line.
Example
The following example configures HTTPS authentication.
Console(config)# ip http authentication radius local
Keyword Source or destination
local Uses the local username database for authentication.
none Uses no authentication.
radius Uses the list of all RADIUS servers for authentication.
tacacs Uses the list of all TACACS+ servers for authentication.
Console(config)# ip https authentication radius local
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show authentication methods
The show authentication methods Privileged EXEC mode command displays information about
the authentication methods.
Syntax
•
show authentication methods
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the authentication configuration.
Console# sh authentication methods
Login Authentication Method Lists
---------------------------------
Console_Default: None
Network_Default:
Local
Enable Authentication Method Lists
----------------------------------
Console_Default:
Enable, None
Network_Default:
Enable
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password
The password Line Configuration mode command specifies a password on a line. Use the no form
of this command to remove the password.
Syntax
•
password
password
[
encrypted
]
•
no password
•
password
— Password for this level. (Range: 1 - 159 characters)
•
encrypted
— Encrypted password to be entered, copied from another device configuration.
Default Configuration
No password is defined.
Command Mode
Line Configuration mode.
User Guidelines
If a password is defined as encrypted, the required password length is 32 characters.
Example
The following example specifies password secret on a console.
Line Login Method List Enable Method List
-------------- ----------------- ------------------
Console Default Default
Telnet Default Default
SSH Default Default
http : Local
https : Local
dot1x :
console#
Console(config)# line console
Console(config-line)# password secret
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enable password
The enable password Global Configuration mode command sets a local password to control access
to user and privilege levels. Use the no form of this command to remove the password requirement.
Syntax
•
enable password
[
level
level
]
password
[
encrypted
]
•
no enable password
[
level
level
]
•
password
— Password for this level. (Range: 8 - 64 characters)
•
level
— Level for which the password applies. If not specified the level is 15. (Range: 1 or
15)
•
encrypted
— Encrypted password entered, copied from another device configuration.
Default Configuration
No enable password is defined.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example sets local level 15 password secret to control access to privilege levels.
Console(config)# enable password level 15 secret
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username
The username Global Configuration mode command creates a user account in the local database.
Use the no form of this command to remove a user name.
Syntax
•
username
name
[
password
password
] [
level
level
] [
encrypted
]
•
no username
name
•
name
— The name of the user. (Range: 1 - 20 characters)
•
password
— The authentication password for the user. (Range: 8 - 64 characters)
•
level
— The user level. (Range: 1 or 15)
•
encrypted
— Encrypted password entered, copied from another device configuration.
Default Configuration
No user is defined.
Command Mode
• Global Configuration mode
User Guidelines
• User account can be created without a password.
Example
The following example configures user bob with password lee and user level 15 to the system.
service password-recovery
Use the service password-recovery Global Configuration mode command to enable the password-
recovery mechanism. This mechanism enables an end user, with physical access to the console port
of the device, to enter the boot menu and trigger the password recovery process. Use the no service
password-recovery command to disable the password-recovery mechanism. When the password-
recovery mechanism is disabled, accessing the boot menu is still allowed and the user can trigger
the password recovery process. The difference is, that in this case, all the configuration files and all
the user files are removed.
Syntax
• service password-recovery
• no service password-recovery
Console(config)# username bob password lee level 15
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Parameters
•N/A
Default Configuration
• The service password recovery is enabled by default.
Command Mode
• Global Configuration mode
User Guidelines
• If password recovery is enabled, the user can access the boot menu and trigger the password
recovery in the boot menu. All configuration files and user files are kept.
• If password recovery is disabled, the user can access the boot menu and trigger the password
recovery in the boot menu. The configuration files and user files are removed.
Example
The following command disables password recovery:
Console(config)# no service password recovery
Note that choosing to use Password recovery option in the Boot
Menu during the boot process will remove the configuration files
and the user files. Would you like to continue ? Y/N.
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ACL Commands 103
5
ACL Commands
ip access-list
The ip access-list global configuration mode command defines an IPv4 access list and places the
device in IPv4 access list configuration mode. Use the no form of this command to remove the
access list.
Syntax
•
ip access-list
access-list-name
•
no ip access-list
access-list-name
•
access-list-name
— Specifies the name
of the IPv4 access list
.
Default Configuration
No IPv4 access list is defined.
Command Mode
Global Configuration mode.
User Guidelines
• IPv4 ACLs are defined by a unique name. An IPv4 ACL and MAC ACL cannot share the same
name.
Example
The following example shows how to define an IPv4 access list called dell-access-1 and to place
the device in IPv4 access list configuration mode.
Console(config)# ip access-list dell-access-1
Console(config-ip-al)#
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permit (IP)
The permit IP-Access List Configuration mode command permits traffic if the conditions defined
in the permit statement match.
Syntax
•
permit
{
any
|
protocol
} {
any
|{
source source-wildcard
}} {
any
|{
destination destination-
wildcard
}} [
dscp
number
|
ip-precedence
number
]
•
permit-icmp
{
any
|{
source source-wildcard
}} {
any
|{
destination destination-wildcard
}}
{
any
|
icmp-type
} {
any
|
icmp-code
} [
dscp
number
|
ip-precedence
number
]
•
permit-igmp
{
any
|{
source source-wildcard
}} {
any
|{
destination destination-wildcard
}}
{
any
|
igmp-type
} [
dscp
number
|
ip-precedence
number
]
•
permit-tcp
{
any
|{
source source-wildcard
}} {
any
|
source-port
} {
any
|{
destination
destination-
wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence
number
] [
flags
list-of-flags
]
[
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-wildcard
]
•
permit-udp
{
any
|{
source source-wildcard
}} {
any
|
source-port
} {
any
|{
destination destination-
wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence
number
] [
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-wildcard
]
•
source
— Specifies the source IP address of the packet.
•
source-wildcard
— Specifies wildcard bits to be applied to the sources IP address by placing
1s in bit positions to be ignored.
•
destination
— Specifies the destination IP address of the packet.
•
destination- wildcard
— Specifies wildcard bits to be applied to the destination IP address
by placing 1s in bit positions to be ignored.
•
protocol
— Specifies the name or the number of an IP protocol. Available protocol names:
icmp, igmp, ip, tcp, egp, igp, udp, hmp, rdp, idpr, idrp, rsvp, gre, esp, ah, eigrp, ospf,
ipip, pim, l2tp, isis
. (Range: 0 - 255)
•
dscp
number
— Specifies the DSCP value.
•
ip-precedence
number
— Specifies the IP precedence value.
•
icmp-type
— Specifies an ICMP message type for filtering ICMP packets. Enter a number or
one of the following values:
echo-reply, destination-unreachable, source-quench,
redirect, alternate-host-address, echo-request, router-advertisement, router-
solicitation, time-exceeded, parameter-problem, timestamp, timestamp-reply,
information-request, information-reply, address-mask-request, address-mask-reply,
traceroute, datagram-conversion-error, mobile-host-redirect, mobile-registration-
request, mobile-registration-reply, domain-name-request, domain-name-reply, skip,
photuris
. (Range: 0 - 255)
•
icmp-code
— Specifies an ICMP message code for filtering ICMP packets. (Range: 0 - 255)
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•
igmp-type
— Specifies IGMP packets filtered by IGMP message type. Enter a number or
one of the following values:
host-query, host-report, dvmrp, pim, cisco-trace, host-
report-v2, host-leave-v2, host-report-v3
. (Range: 0 - 255)
•
destination-port
— Specifies the UDP/TCP destination port. (Range: 1 - 65535)
•
destination-port-wildcard
— Specifies wildcard bits to be applied to the destination port by
placing 1s in bit positions to be ignored.
•
source-port
— Specifies the UDP/TCP source port. (Range: 1 - 65535)
•
source-port-wildcard
—Specifies wildcard bits to be applied to the source port by placing 1s
in bit positions to be ignored.
•
flags
list-of-flags
— Specifies the list of TCP flags. If a flag is set, it is prefixed by "+". If a
flag is not set, it is prefixed by "-". Available options are
+urg, +ack, +psh, +rst, +syn, +fin,
-urg, -ack, -psh, -rst, -syn
and
-fin
. The flags are concatenated to a one string. For example:
+fin-ack
.
Default Configuration
No IPv4 ACL is defined.
Command Mode
IP-Access List Configuration mode.
User Guidelines
•Use the
ip access-list
Global Configuration mode command to enable the IP-Access List
Configuration mode.
• Before an Access Control Element (ACE) is added to an ACL, all packets are permitted. After an
ACE is added, an implied
deny-any-any
condition exists at the end of the list and those packets
that do not match the conditions defined in the permit statement are denied.
Example
The following example shows how to define a permit statement for an IP ACL.
Console(config)# ip access-list ip-acl1
Console(config-ip-al)# permit rsvp 192.1.1.1 0.0.0.0 any dscp 56
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deny (IP)
The deny IP-Access List Configuration mode command denies traffic if the conditions defined in
the deny statement match.
Syntax
•
deny
[
disable-port
] {
any
|
protocol
} {
any
|{
source source-wildcard
}} {
any
|{
destination
destination-wildcard
}} [
dscp
number
|
ip-precedence
number
]
•
deny-icmp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|{
destination destination-
wildcard
}} {
any
|
icmp-type
} {
any
|
icmp-code
} [
dscp
number
|
ip-precedence
number
]
•
deny-igmp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|{
destination destination-
wildcard
}} {
any
|
igmp-type
} [
dscp
number
|
ip-precedence
number
]
•
deny-tcp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|
source-port
} {
any
|{
destination
destination-wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence number
] [
flags
list-of-flags
] [
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-
wildcard
]
•
deny-udp
[
disable-port
] {
any
|{
source source-wildcard
}} {
any
|
source-port
}
{
any
|{
destination destination-wildcard
}} {
any
|
destination-port
} [
dscp
number
|
ip-precedence
number
] [
src-port-wildcard
source-port-wildcard
] [
dst-port-wildcard
source-port-wildcard
]
•
disable-port
— Specifies that the Ethernet interface is disabled if the condition is matched.
•
source
— Specifies the Source IP address of the packet.
•
source-wildcard
— Specifies wildcard bits to be applied to the source IP address by placing
1s in bit positions to be ignored.
•
destination
— Specifies the destination IP address of the packet.
•
destination- wildcard
— Specifies wildcard bits to be applied to the destination IP address
by placing 1s in bit positions to be ignored.
•
protocol
— Specifies the name or the number of an IP protocol. Available protocol names:
icmp, igmp, ip, tcp, egp, igp, udp, hmp, rdp, idpr, idrp, rsvp, gre, esp, ah, eigrp, ospf,
ipip, pim, l2tp, isis
. (Range: 0 - 255)
•
dscp
number
— Specifies the DSCP value.
•
ip-precedence
number
— Specifies the IP precedence value.
•
icmp-type
— Specifies an ICMP message type for filtering ICMP packets. Enter a number or
one of the following values:
echo-reply, destination-unreachable, source-quench,
redirect, alternate-host-address, echo-request, router-advertisement, router-
solicitation, time-exceeded, parameter-problem, timestamp, timestamp-reply,
information-request, information-reply, address-mask-request, address-mask-reply,
traceroute, datagram-conversion-error, mobile-host-redirect, mobile-registration-
request, mobile-registration-reply, domain-name-request, domain-name-reply, skip,
photuris
.
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•
icmp-code
— Specifies an ICMP message code for filtering ICMP packets. (Range: 0 - 255)
•
igmp-type
— Specifies IGMP packets filtered by IGMP message type. Enter a number or
one of the following values:
host-query, host-report, dvmrp, pim, cisco-trace, host-
report-v2, host-leave-v2, host-report-v3
. (Range: 0 - 255)
•
destination-port
— Specifies the UDP/TCP destination port. (Range: 1 - 65535)
•
destination-port-wildcard
— Specifies wildcard bits to be applied to the destination port by
placing 1s in bit positions to be ignored.
•
source-port
— Specifies the UDP/TCP source port. (Range: 1 - 65535)
•
source-port-wildcard
— Specifies wildcard bits to be applied to the source port by placing
1s in bit positions to be ignored.
•
flags
list-of-flags
— Specifies the list of TCP flags. If a flag should be set it is prefixed by
"+". If a flag is not set, it is prefixed by "-". Available options are
+urg, +ack, +psh, +rst,
+syn, +fin, -urg, -ack, -psh, -rst, -syn
and
-fin
. The flags are concatenated to a one string.
For example:
+fin-ack
.
Default Configuration
No IPv4 access list is defined.
Command Mode
IP-Access List Configuration mode.
User Guidelines
•Use the
ip access-list
Global Configuration mode command to enable the IP-Access List
Configuration mode.
• Before an Access Control Element (ACE) is added to an ACL, all packets are permitted. After an
ACE is added, an implied
deny-any-any
condition exists at the end of the list and those packets
that do not match the defined conditions are denied.
Example
The following example shows how to define a permit statement for an IP ACL.
mac access-list
The mac access-list Global Configuration mode command creates Layer 2 ACLs. Use the no form
of this command to delete an ACL.
Console(config)# ip access-list ip-acl1
Console(config-ip-al)# deny rsvp 192.1.1.1 0.0.0.255 any
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Syntax
•
mac access-list
name
•
no mac access-list
name
•
name
— Specifies the name of the ACL.
Default Configuration
No MAC access list is defined.
Command Mode
Global Configuration mode.
User Guidelines
MAC ACLs are defined by a unique name. IP-based ACLs and MAC-based ACLs cannot share
the same name.
Example
The following example shows how to create a MAC ACL.
permit (MAC)
The permit MAC-Access List Configuration mode command sets permit conditions for a MAC
access list.
Syntax
•
permit
{
any
| {
source source-wildcard
}
any
| {
destination destination-wildcard
}} [
vlan
vlan-
id
] [
cos
cos cos-wildcard
] [
ethtype
eth-type
]
•
source
— Specifies the source MAC address of the packet.
•
source-wildcard
— Specifies wildcard bits to be applied to the source MAC address by
placing 1s in bit positions to be ignored.
•
any
— Specify a MAC address and mask. For example, to set 00:00:00:00:10:XX use the
Mac address 00:00:00:00:10:00 and mask 00:00:00:00:00:FF.
•
destination
— Specifies the MAC address of the host to which the packet is being sent.
•
destination-wildcard
— Specifies wildcard bits to be applied to the destination MAC
address by placing 1s in bit positions to be ignored.
•
vlan-id
— Specifies the ID of the packet vlan. (Range: 1 - 4093)
•
cos
— Specifies the Class of Service (CoS) for the packet. (Range: 0 - 7)
Console(config)# mac access-list macl-1
Console(config-mac-al)#
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•
cos-wildcard
— Specifies wildcard bits to be applied to the CoS.
•
eth-type
— Specifies the etherType of the packet in hexadecimal format. (Range: 0 - 05dd-
ffff {hex})
Default Configuration
No MAC ACL is defined.
Command Mode
MAC-Access List Configuration mode.
User Guidelines
• Before an Access Control Element (ACE) is added to an ACL, all packets are permitted. After an
ACE is added, an implied
deny-any-any
condition exists at the end of the list and those packets
that do not match the conditions defined in the permit statement are denied.
Example
The following example shows how to create a MAC ACL with permit rules.
deny (MAC)
The deny MAC-Access List Configuration mode command denies traffic if the conditions defined
in the deny statement match.
Syntax
•
deny [disable-port] {any|{
source source- wildcard
} {any|{
destination destination- wildcard
}}
[vlan
vlan-id
] [cos
cos cos-wildcard
] [ethtype
eth-type
]
•
disable-port —
Indicates that the port is disabled if the condition is matched.
•
source
— Specifies the MAC address of the host from which the packet was sent.
•
source-wildcard
— Specifies wildcard bits to the source MAC address by placing 1s in bit
positions to be ignored.
•
any
— Specify a MAC address and mask. For example, to set 00:00:00:00:10:XX use the
Mac address 00:00:00:00:10:00 and mask 00:00:00:00:00:FF.
•
destination
— Specifies the MAC address of the host to which the packet is being sent.
•
destination-wildcard
— Specifies wildcard bits to the destination MAC address by placing
1s in bit positions to be ignored.
•
vlan-id
— Specifies the vlan id of the packet. (Range: 1 - 4093)
Console(config)# mac access-list macl-acl1
Console(config-mac-al)# permit 06:a6 00:00:00:00:00:00 any vlan 6
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•
cos
— Specifies the packets’s Class of Service (CoS). (Range: 0 - 7)
•
cos-wildcard
— Specifies wildcard bits to be applied to the CoS.
•
eth-type
— Specifies the packet’s Ethernet type in hexadecimal format. (0 - 05dd-ffff {hex})
Default Configuration
No MAC access list is defined.
Command Mode
MAC-Access List Configuration mode.
User Guidelines
• MAC BPDU packets cannot be denied.
• Each MAC address in the ACL is a ACE (Access Control Element) and can only be removed by
deleting the ACL using the
no ip access-list
Global Configuration mode command or the Web-
based interface.
Example
The following example shows how to create a MAC ACL with rules.
service-acl
The service-acl Interface (VLAN) Configuration mode command applies an ACL to the input
interface. Use the no form of this command to detach an ACL from an input interface.
Syntax
•
service-acl input
acl-name
•
no
service-acl input
•
acl-name
— Specifies the ACL to be applied to the input interface.
Default Configuration
This command has no default configuration.
Command Mode
Interface (Ethernet, Port-Channel) Configuration mode.
Console(config)# mac access-list macl-1
Console (config-mac-acl)# deny 66:66:66:66:66:66
Console(config-mac-acl)# exit
Console(config)#
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User Guidelines
There are no user guidelines for this command.
Example
The following example, binds (services) an ACL to VLAN 2.
show access-lists
The show access-lists Privileged EXEC mode command displays access control lists (ACLs)
defined on the device.
Syntax
•
show access-lists
[
name
]
•
name
— Name of the ACL.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays the access lists.
console# config
console(config)# mac access-list macA
console(config-mac-al)# permit a1:a1:a1:a1:a1:a1
00:00:00:00:00:11 any
console(config-mac-al)# exit
console(config)# interface ethernet e10
console(config-if)# service-acl input macA
console(config-if)#
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show interfaces access-lists
The show interfaces access-lists Privileged EXEC mode command displays access lists applied on
interfaces.
Syntax
•
show interfaces access-lists
[
ethernet
interface
|
port-channel
port-channel-number
]
•
Interface
— Specifies the Valid Ethernet port. (Full syntax: unit/port)
•
port-channel-number
— Specifies the port-channel index.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays an ACLs applied on the device interfaces:
Console# show access-lists
MAC access list macl-1
deny host 66:66:66:66:66:66
console# show access-lists
MAC access list macA
permit any
console# show interfaces access-lists
Interface Input ACL
-------------- ---------------
e10 macA
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Address Table Commands 113
6
Address Table Commands
bridge address
The bridge address Interface Configuration (VLAN) mode command adds a MAC-layer station
source address to the bridge table. Use the no form of this command to delete the MAC address.
Syntax
•
bridge address
mac-address
{
ethernet
interface
|
port-channel
port-channel-number
}
[
permanent
|
delete-on-reset
|
delete-on-timeout
|
secure
]
•
no bridge address
[
mac-address
]
•
mac-address
— A valid MAC address.
•
interface —
A valid Ethernet port.
•
port-channel-number —
A valid port-channel number.
•
permanent —
The address can only be deleted by the
no bridge address
command.
•
delete-on-reset
— The address is deleted after reset.
•
delete-on-timeout —
The
address is deleted after "age out" time has expired.
•
secure
— The address is deleted after the port changes mode to unlock learning (
no port
security
command). This parameter is only available when the port is in the learning locked
mode.
Default Configuration
No static addresses are defined. The default mode for an added address is
permanent
.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• Using the
no
form of the command without specifying a MAC address deletes all static MAC
addresses belonging to this VLAN.
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Example
The following example adds a permanent static MAC-layer station source address 3aa2.64b3.a245
on port 1/e16 to the bridge table.
bridge multicast filtering
The bridge multicast filtering Global Configuration mode command enables filtering Multicast
addresses. Use the no form of this command to disable filtering Multicast addresses.
Syntax
•
bridge multicast filtering
•
no bridge multicast filtering
Default Configuration
Filtering Multicast addresses is disabled. All Multicast addresses are flooded to all ports.
Command Mode
Global Configuration mode.
User Guidelines
• If Multicast routers exist on the VLAN, do not change the unregistered Multicast addresses state
to drop on the switch ports.
• If Multicast routers exist on the VLAN and IGMP-snooping is not enabled, use the
bridge
multicast forward-all
command to enable forwarding all Multicast packets to the Multicast
switches.
Example
The following example enables bridge Multicast filtering.
Console(config)# interface vlan 2
Console(config-if)# bridge address 3aa2.64b3.a245 ethernet 1/e16
permanent
Console(config)# bridge multicast filtering
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bridge multicast address
The bridge multicast address Interface Configuration (VLAN) mode command registers a MAC-
layer Multicast address in the bridge table and statically adds ports to the group. Use the no form of
this command to unregister the MAC address.
Syntax
•
bridge multicast address
{
mac-multicast-address
|
ip-multicast-address
}
•
bridge multicast address
{
mac-multicast-address
|
ip-multicast-address
}
[
add
|
remove
]
{
ethernet
interface-list
|
port-channel
port-channel-number-list
}
•
no bridge multicast address
{
mac-multicast-address
|
ip-multicast-address
}
•
add
— Adds ports to the group. If no option is specified, this is the default option.
•
remove
— Removes ports from the group.
•
mac-multicast-address
— A valid MAC Multicast address.
•
ip- multicast-address
— A valid IP Multicast address.
•
interface-list
— Separate non-consecutive Ethernet ports with a comma and no spaces; a
hyphen is used to designate a range of ports.
•
port-channel-number-list
— Separate non-consecutive port-channels with a comma and no
spaces; a hyphen is used to designate a range of ports.
Default Configuration
No Multicast addresses are defined.
Command Mode
Interface configuration (VLAN) mode.
User Guidelines
• If the command is executed without
add
or
remove
, the command only registers the group in the
bridge database.
• Static Multicast addresses can only be defined on static VLANs.
Examples
The following example registers the MAC address:
Console(config)# interface vlan 8
Console(config-if)# bridge multicast address 01:00:5e:02:02:03
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The following example registers the MAC address and adds ports statically.
bridge multicast forbidden address
The bridge multicast forbidden address Interface Configuration (VLAN) mode command forbids
adding a specific Multicast address to specific ports. Use the no form of this command to return to
the default configuration.
Syntax
•
bridge multicast forbidden address
{
mac-multicast-address
|
ip-multicast-address
} {
add
|
remove
} {
ethernet
interface-list
|
port-channel
port-channel-number-list
}
•
no bridge multicast forbidden address
{
mac-multicast-address
|
ip-multicast-address
}
•
add
— Adds ports to the group.
•
remove
— Removes ports from the group.
•
mac-multicast-address
— A valid MAC Multicast address.
•
ip- multicast-address
— A valid IP Multicast address.
•
interface-list —
Separate non-consecutive Ethernet ports with a comma and no spaces;
hyphen is used to designate a range of ports.
•
port-channel-number-list —
Separate non-consecutive valid port-channels with a comma
and no spaces; a hyphen is used to designate a range of port-channels.
Default Configuration
No forbidden addresses are defined.
Command Modes
Interface Configuration (VLAN) mode.
User Guidelines
• Before defining forbidden ports, the Multicast group should be registered.
Console(config)# interface vlan 8
Console(config-if)# bridge multicast address 01:00:5e:02:02:03
add ethernet 1/e1-e9, 2/e2
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Examples
The following example forbids MAC address 0100.5e02.0203 on port 2/e9 within VLAN 8.
bridge multicast unregistered
The bridge multicast unregistered Interface Configuration mode command configures the
forwarding state of unregistered multicast addresses. Use the no form of this command to return to
default.
Syntax
•
bridge multicast unregistered
{
forwarding
|
filtering
}
• no bridge multicast unregistered
•
forwarding
— Forward unregistered multicast packets.
•
filtering
— Filter unregistered multicast packets. See usage guidelines for the case where
the port is a router port.
Default Configuration
Forwarding
Command Modes
Interface configuration (Ethernet, Port-Channel) mode
Default Configuration
• Unregistered multicast filtering should not be enabled on ports that are connected to routers,
because the 224.0.0.x address range should not be filtered. Routers would not necessarily send
IGMP reports for the 224.0.0.x range.
Examples
This example configures the forwarding state of unregistered multicast addresses to allow
forwarding.
Console(config)# interface vlan 8
Console(config-if)# bridge multicast address 0100.5e.02.0203
Console(config-if)# bridge multicast forbidden address
0100.5e02.0203 add ethernet 2/e9
Console (config)# bridge multicast unregistered forwarding
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bridge multicast forward-all
The bridge multicast forward-all Interface Configuration (VLAN) mode command enables
forwarding all Multicast packets on a port. Use the no form of this command to restore the default
configuration.
Syntax
•
bridge multicast forward-all
{
add
|
remove
}
{
ethernet
interface-list
|
port-channel
port-
channel-number-list
}
•
no bridge multicast forward-all
•
add
— Force forwarding all Multicast packets.
•
remove
— Do not force forwarding all Multicast packets.
•
interface-list
— Separate non-consecutive Ethernet ports with a comma and no spaces; a
hyphen is used to designate a range of ports.
•
port-channel-number-list
— Separate non-consecutive port-channels with a comma and no
spaces; a hyphen is used to designate a range of port-channels.
Default Configuration
This setting is disabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example forwards all Multicast packets on port 1/e8.
Console(config)# interface vlan 2
Console(config-if)# bridge multicast forward-all add
ethernet 1/e8
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bridge multicast forbidden forward-all
The bridge multicast forbidden forward-all Interface Configuration (VLAN) mode command
forbids a port to be a forward-all-Multicast port. Use the no form of this command to restore the
default configuration.
Syntax
•
bridge multicast forbidden forward-all
{
add
|
remove
}
{
ethernet
interface-list
|
port-
channel
port-channel-number-list
}
•
no bridge multicast forbidden forward-all
•
add
— Forbids forwarding all Multicast packets.
•
remove
— Does not forbid forwarding all Multicast packets.
•
interface-list
— Separates non-consecutive Ethernet ports with a comma and no spaces; a
hyphen is used to designate a range of ports.
•
port-channel-number-list
— Separates non-consecutive port-channels with a comma and no
spaces; a hyphen is used to designate a range of port-channels.
Default Configuration
This setting is disabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• IGMP snooping dynamically discovers Multicast router ports. When a Multicast router port is
discovered, all the Multicast packets are forwarded to it unconditionally.
• This command prevents a port from becoming a Multicast router port.
Example
The following example forbids forwarding all Multicast packets to 1/e1 with VLAN 2.
Console(config)# interface vlan 2
Console(config-if)# bridge multicast forbidden forward-all add
ethernet 1/e1
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bridge aging-time
The bridge aging-time Global Configuration mode command sets the Address Table aging time.
Use the no form of this command to restore the default configuration.
Syntax
•
bridge aging-time
seconds
•
no bridge aging-time
•
seconds
— Time in seconds. (Range: 10 - 630 seconds)
Default Configuration
The default setting is 300 seconds.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example sets the bridge aging time to 250.
clear bridge
The clear bridge Privileged EXEC mode command removes any learned entries from the
forwarding database.
Syntax
•
clear bridge
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# bridge aging-time 250
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Example
The following example clears the bridge tables.
port security
The port security Interface Configuration mode command locks the port, thereby, blocking
unknown traffic and preventing the port from learning new addresses. Use the no form of this
command to return to the default configuration.
Syntax
•
port security
[
forward
|
discard |
discard-shutdown
] [
trap
seconds
]
•
no port security
•
forward
— Forwards packets with unlearned source addresses, but does not learn the
address.
•
discard
— Discards packets with unlearned source addresses. This is the default if no option
is indicated.
•
discard-shutdown
— Discards packets with unlearned source addresses. The port is also
shut down.
•
seconds
— Sends SNMP traps and defines the minimum amount of time in seconds between
consecutive traps. (Range: 1 - 1000000)
Default Configuration
This setting is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command. 802.1x multiple host mode must be enabled.
Example
The following example enables port 1/e1 to forward all packets without learning addresses of
packets from unknown sources and sends traps every 100 seconds if a packet with an unknown
source address is received.
Console# clear bridge
Console(config)# interface ethernet 1/e1
Console(config-if)# port security forward trap 100
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port security mode
The port security mode Interface Configuration mode command configures the port security
mode. Use the no form of this command to return to the default configuration.
Syntax
•
port security mode
{
lock
|
max-addresses
}
•
no port security mode
•
lock
— Saves the current dynamic MAC addresses associated with the port and disables
learning, relearning and aging.
•
max-addresses
— Deletes the current dynamic MAC addresses associated with the port.
Learns up to the maximum addresses allowed on the port. Relearning and aging are enabled.
Default Configuration
This setting is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example sets port security mode to dynamic for Ethernet interface 1/e7.
port security max
The port security max Interface Configuration (Ethernet, port-channel) mode command
configures the maximum number of addresses that can be learned on the port while the port is in
port security mode. Use the no form of this command to return to the default configuration.
Syntax
•
port security max
max-addr
•
no port security max
•
max-addr
— Maximum number of addresses that can be learned by the port. (Range: 1 -
128)
Console(config)# interface ethernet 1/e7
Console(config-if)# port security mode dynamic
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Default Configuration
The default setting is 1 address.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
This command is only relevant in dynamic learning modes.
Example
The following example sets the maximum number of addresses that are learned on port 1/e7 before
it is locked to 20.
port security routed secure-address
The port security routed secure-address Interface Configuration (Ethernet, port-channel) mode
command adds a MAC-layer secure address to a routed port. Use the no form of this command to
delete a MAC address.
Syntax
•
port security routed secure-address
mac-address
•
no port security routed secure-address
mac-address
•
mac-address
— A valid MAC address.
Default Configuration
No addresses are defined.
Command Mode
Interface configuration (Ethernet, port-channel) mode; cannot be configured for a range of
interfaces (range context).
User Guidelines
• The command enables adding secure MAC addresses to a routed port in port security mode.
• The command is available when the port is a routed port and in port security mode. The address
is deleted if the port exits the security mode or is not a routed port.
Console(config)# interface ethernet 1/e7
Console(config-if)# port security mode dynamic
Console(config-if)# port security max 20
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Example
The following example adds the MAC-layer address 66:66:66:66:66:66 to port 1/e1.
show bridge address-table
The show bridge address-table Privileged EXEC mode command displays all entries in the
bridge-forwarding database.
Syntax
•
show bridge address-table
[
vlan
vlan
] [
ethernet
interface
|
port-channel
port-channel-
number
]
•
vlan
— Specifies a valid VLAN, such as VLAN 1.
•
interface —
A valid Ethernet port
.
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
Console(config)# interface ethernet 1/e1
Console(config-if)# port security routed secure-address
66:66:66:66:66:66
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User Guidelines
• Internal usage VLANs (VLANs that are automatically allocated on ports with a defined Layer 3
interface) are presented in the VLAN column by a port number and not by a VLAN ID.
• "Special" MAC addresses that were not statically defined or dynamically learned are displayed
in the MAC Address Table. This includes, for example, MAC addresses defined in ACLs.
Example
The following example displays all classes of entries in the bridge-forwarding database.
show bridge address-table static
The show bridge address-table static Privileged EXEC mode command displays statically created
entries in the bridge-forwarding database.
Syntax
•
show bridge address-table static
[
vlan
vlan
] [
ethernet
interface
|
port-channel
port-channel-
number
]
Parameters
•
vlan
— Specifies a valid VLAN, such as VLAN 1.
•
interface —
A valid Ethernet port
number
.
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
Console# show bridge address-table
Aging time is 300 sec
Vlan mac address Port Type
--------- -------------- ---- -------
1 00:60:70:4C:73:FF 5/e8 dynamic
1 00:60:70:8C:73:FF 5/e8 dynamic
200 00:10:0D:48:37:FF 5/e9 static
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User Guidelines
There are no user guidelines for this command.
Example
The following example displays all static entries in the bridge-forwarding database.
show bridge address-table count
The show bridge address-table count Privileged EXEC mode command displays the number of
addresses present in the Forwarding Database.
Syntax
•
show bridge address-table count
[
vlan
vlan
][
ethernet
interface-number
|
port-channel
port-
channel-number
]
•
vlan
— Specifies a valid VLAN, such as VLAN 1.
•
interface —
A valid Ethernet port
.
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show bridge address-table static
Aging time is 300 sec
vlan mac address port type
---- ----------------- ---- -----------------
1 00:60:70:4C:73:FF 1/e8 Permanent
1 00:60:70:8C:73:FF 1/e8 delete-on-timeout
200 00:10:0D:48:37:FF 1/e9 delete-on-reset
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Example
The following example displays the number of addresses present in all VLANs.
show bridge multicast address-table
The show bridge multicast address-table Privileged EXEC mode command displays Multicast
MAC address or IP Address Table information.
Syntax
•
show bridge multicast address-table
[
vlan
vlan-id
]
[
address
mac-multicast-address
|
ip-
multicast-address
] [
format
ip
|
format mac
]
•
vlan-id
— A valid VLAN ID value.
•
mac-multicast-address
— A valid MAC Multicast address.
•
ip-multicast-address —
A valid IP Multicast address.
•
format ip|mac
—
Multicast address format. Can be
ip
or
mac
. If the format is unspecified,
the default is
mac
.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• A MAC address can be displayed in IP format only if it is in the range of 0100.5e00.0000-
0100.5e7f.ffff.
Console# show bridge address-table count
Capacity: 8192
Free: 8083
Used: 109
Secure addresses: 2
Static addresses: 1
Dynamic addresses: 97
Internal addresses: 9
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Example
The following example displays Multicast MAC address and IP Address Table information.
NOTE: A Multicast MAC address maps to multiple IP addresses as shown above.
Console# show bridge multicast address-table
Vlan MAC Address Type Ports
---- -------------- ------- ----------
1 01:00:5e:02:02:03 static 1/e1, 2/e2
19 01:00:5e:02:02:08 static 1/e1-e8
19 00:00:5e:02:02:08 dynamic 1/e9-e11
Forbidden ports for Multicast addresses:
Vlan MAC Address Ports
---- -------------- -----
1 01:00:5e:02:02:03 2/e8
19 01:00:5e:02:02:08 2/e8
Console# show bridge multicast address-table format ip
Vlan IP/MAC Address Type Ports
---- ----------------- ------ ---------
1 224-239.130|2.2.3 static 1/e1,2/e2
19 224-239.130|2.2.8 static 1/e1-8
19 224-239.130|2.2.8 dynamic 1/e9-11
Forbidden ports for Multicast addresses:
Vlan IP/MAC Address Ports
---- ----------------- ------
1 224-239.130|2.2.3 2/e8
19 224-239.130|2.2.8 2/e8
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show bridge multicast filtering
The show bridge multicast filtering Privileged EXEC mode command displays the Multicast
filtering configuration.
Syntax
•
show bridge multicast filtering
vlan-id
•
vlan_id —
A valid VLAN ID value.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays the Multicast configuration for VLAN 1.
show bridge multicast address-table static
The show bridge multicast address-table static Privileged EXEC mode command displays the
statically configured multicast addresses.
Console # show bridge multicast filtering 1
Filtering: Enabled
VLAN: 1
Port Static Status
------- ----------------- -----------
1/e14 Forbidden Filter
1/e15 Forward Forward(s)
1/e16 - Forward(d)
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Syntax
•
show bridge multicast address-table static
[
vlan
vlan-id
]
[
address
mac-multicast-address
|
ip-
multicast-address
] [
source
ip-address
]
•
vlan-id
— Indicates the VLAN ID. This has to be a valid VLAN ID value.
•
mac-multicast-address
— A valid MAC multicast address.
•
ip-multicast-address —
A valid IP multicast address.
•
ip-address
— Source IP address.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
A MAC address can be displayed in IP format only if it's in the range 0100.5e00.0000 through
0100.5e7f.ffff.
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Example
Console#
show bridge multicast address-table static
MAC-GROUP table
Vlan MAC Address Type Ports
---- -------------- ------- ----------
1 0100.9923.8787 static 1/e1, 2/e2
Forbidden ports for multicast addresses:
Vlan MAC Address Ports
---- -------------- -----
IPv4-GROUP Table
Vlan IP/MAC Address Type Ports
---- ----------------- ------ ---------
1 231.2.2.3 dynamic 1/e1, 2/e2
19 231.2.2.8 static 1/e1-e8
19 231.2.2.8 dynamic 1-9-11
Forbidden ports for multicast addresses:
Vlan MAC Address Ports
---- -------------- -----
1 231.2.2.3 2/8
19 231.2.2.8 2/8
IPv4-SRC-GROUP Table:
Vlan Group Address Source Address Type Ports
---- -------------- ------- ----------
Forbidden ports for multicast addresses:
Vlan Group Address Source Address Ports
---- -------------- ------- ----------
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show bridge multicast filtering
The show bridge multicast filtering Privileged EXEC mode command displays the Multicast
filtering configuration.
Syntax
•
show bridge multicast filtering
vlan-id
•
vlan-id —
VLAN ID value.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the Multicast configuration for VLAN 1.
Console# show bridge multicast filtering 1
Filtering: Enabled
VLAN: 1
Port Forward-Unregistered Forward-All
Static Status Static Status
---- --------- --------- --------- ----------
1/e1 Forbidden Filter Forbidden Filter
1/e2 Forward Forward(s) Forward Forward(s)
1/e3 - Forward(d) - Forward(d)
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show ports security
The show ports security Privileged EXEC mode command displays the port-lock status.
Syntax
•
show ports security
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— A valid Ethernet port
.
•
port-channel-number —
A valid port-channel number
.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays all classes of entries in the port-lock status.
Console # show ports security
Port Status Learning Action Maximum Trap Frequenc
y
----- ------- ------- ------- -------- --------
1/e1 Disabled Lock - 1 - -
1/e2 Disabled Lock - 1 - -
1/e3 Disabled Lock - 1 - -
1/e4 Disabled Lock - 1 - -
1/e5 Disabled Lock - 1 - -
1/e6 Disabled Lock - 1 - -
1/e7 Disabled Lock - 1 - -
1/e8 Disabled Lock - 1 - -
1/e9 Disabled Lock - 1 - -
1/e10 Disabled Lock - 1 - -
1/e11 Disabled Lock - 1 - -
1/e12 Disabled Lock - 1 - -
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show ports security addresses
The show ports security addresses Privileged EXEC mode command displays the current
dynamic addresses in locked ports.
Syntax
•
show ports security addresses
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— A valid Ethernet port
.
•
port-channel-number —
A valid port-channel number
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
1/e13 Disabled Lock - 1 - -
1/e14 Disabled Lock - 1 - -
1/e15 Disabled Lock - 1 - -
1/e16 Disabled Lock - 1 - -
1/e17 Disabled Lock - 1 - -
1/e18 Disabled Lock - 1 - -
1/e19 Disabled Lock - 1 - -
1/e20 Disabled Lock - 1 - -
1/e21 Disabled Lock - 1 - -
1/e22 Disabled Lock - 1 - -
Frequency: Minimum time in seconds between consecutive traps
Counter: Number of actions since last trap
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Example
The following example displays dynamic addresses in currently locked ports.
The following example displays dynamic addresses in currently locked port 1/e1.
Console# show ports security addresses
Port Status Learning Current Maximum
---- -------- -------- ------- -------
1/e1 Disabled Lock - 1
1/e2 Disabled Lock - 1
1/e3 Enabled Max-addresses 0 1
1/e4 Port is a member in port-channel ch1
1/e5 Disabled Lock - 1
1/e6 Enabled Max-addresses 0 10
ch1 Enabled Max-addresses 0 50
ch2 Enabled Max-addresses 0 128
Console# show ports security addresses ethernet 1/e1
Port Status Learning Current Maximum
---- -------- -------- ------- -------
1/e1 Disabled Lock - 1
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Clock 137
7
Clock
clock set
The clock set Privileged EXEC mode command manually sets the system clock.
Syntax
•
clock set
hh:mm:ss day month year
or
•
clock set
hh:mm:ss month day year
•
hh:mm:ss
— Current time in hours (military format), minutes, and seconds (hh: 0 - 23, mm:
0 - 59, ss: 0 - 59)
.
•
day
— Current day (by date) in the month (1 - 31)
.
•
month
— Current month using the first three letters by name (Jan, …, Dec).
•
year
— Current year (2000 - 2097).
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example sets the system time to 13:32:00 on the 7th March 2002.
clock source
The clock source Global Configuration mode command configures an external time source for the
system clock. Use no form of this command to disable external time source.
Console# clock set 13:32:00 7 Mar 2002
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Syntax
•
clock source
{
sntp
}
•
no clock source
•
sntp
— SNTP servers
Default Configuration
No external clock source.
Command Mode
Global Configuration mode
User Guidelines
There are no user guidelines for this command.
Examples
The following example configures an external time source for the system clock.
clock timezone
The clock timezone Global Configuration mode command sets the time zone for display purposes. Use
the no form of this command to set the time to the Coordinated Universal Time (UTC).
Syntax
•
clock timezone
hours-offset
[
minutes
minutes-offset
] [
zone
acronym
]
•
no clock timezone
•
hours-offset —
Hours difference from UTC. (Range: -12
– +
13)
•
minutes-offset —
Minutes difference from UTC. (Range: 0
–
59)
•
acronym —
The acronym of the time zone. (Range: Up to 4 characters)
Default Configuration
Clock set to UTC.
Command Mode
Global Configuration mode.
Console(config)# clock source sntp
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User Guidelines
• The system internally keeps time in UTC, so this command is used only for display purposes and
when the time is manually set.
Examples
The following example sets the timezone to 6 hours difference from UTC.
clock summer-time
The clock summer-time Global Configuration mode command configures the system to
automatically switch to summer time (daylight saving time). Use the no form of this command to
configure the software not to automatically switch to summer time.
Syntax
•
clock summer-time recurring
{
usa
|
eu
| {
week day month hh:mm week day month hh:mm
}}
[
offset
offset
] [
zone
acronym
]
•
clock summer-time date
date month year hh:mm date month year hh:mm
[
offset
offset
] [
zone
acronym
]
•
clock summer-time date
month date year hh:mm month date year hh:mm
[
offset
offset
] [
zone
acronym
]
•
no clock summer-time recurring
•
recurring
— Indicates that summer time should start and end on the corresponding
specified days every year.
•
date
— Indicates that summer time should start on the first specific date listed in the
command and end on the second specific date in the command.
•
usa
— The summer time rules are the United States rules.
•
eu
— The summer time rules are the European Union rules.
•
week —
Week of the month. (Range: 1 - 5,
first
,
last
)
•
day —
Day of the week (Range: first three letters by name, like
sun
)
•
date —
Date of the month. (Range: 1 - 31)
•
month —
Month. (Range: first three letters by name, like Jan)
•
year —
Year - no abbreviation (Range: 2000 - 2097)
•
hh:mm —
Time in military format, in hours and minutes. (Range: hh: 0 - 23, mm:0 - 59)
•
offset —
Number of minutes to add during summer time. (Range: 1 - 1440)
•
acronym
— The acronym of the time zone to be displayed when summer time is in effect.
(Range: Up to 4 characters)
Console(config)# clock timezone -6 zone CST
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Default Configuration
Summer time is disabled.
offset —
Default is 60 minutes.
acronym
— If unspecified default to the timezone acronym.
If the timezone has not been defined, the default is UTC.
Command Mode
Global Configuration mode.
User Guidelines
• In both the
date
and
recurring
forms of the command, the first part of the command specifies
when summer time begins, and the second part specifies when it ends. All times are relative to
the local time zone. The start time is relative to standard time. The end time is relative to summer
time. If the starting month is chronologically after the ending month, the system assumes that
you are in the southern hemisphere.
• USA rule for daylight saving time:
• Start: Second Sunday in March
• End: First Sunday in November
• Time: 2 am local time
• EU rule for daylight saving time:
• Start: Last Sunday in March
• End: Last Sunday in October
• Time: 1.00 am (01:00)
Examples
The following example sets summer time starting on the first Sunday in
March
at 2 am and
finishing on the first Sunday in
November
at 2 am.
Console(config)# clock summer-time recurring first sun mrch 2:00
first sun nov 2:00
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sntp authentication-key
The sntp authentication-key Global Configuration mode command defines an authentication key
for Simple Network Time Protocol (SNTP). Use the no form of this command to remove the
authentication key for SNTP.
Syntax
•
sntp authentication-key
number
md5
value
•
no sntp authentication-key
number
•
number —
Key number (Range: 1 - 4294967295)
•
value —
Key value (Range: up to 8 characters)
Default Configuration
No authentication key is defined.
Command Mode
Global Configuration mode.
User Guidelines
• Multiple keys can be generated.
Examples
The following example defines the authentication key for SNTP.
sntp authenticate
The sntp authenticate Global Configuration mode command allows authentication for received
Simple Network Time Protocol (SNTP) traffic from servers. Use the no form of this command to
disable the feature.
Syntax
•
sntp authenticate
•
no sntp authenticate
Default Configuration
No authentication
Command Mode
Global Configuration mode.
Console(config)# sntp authentication-key 8 md5 ClkKey
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User Guidelines
• The command is relevant for both Unicast and Broadcast.
Examples
The following example defines the authentication key for SNTP and allows authentication.
sntp trusted-key
The sntp trusted-key Global Configuration mode command authenticates the identity of a system
to which Simple Network Time Protocol (SNTP) will synchronize. Use the no form of this
command to disable authentication of the identity of the system.
Syntax
•
sntp trusted-key
key-number
•
no sntp trusted-key
key-number
•
key-number —
Key number of authentication key to be trusted. (Range: 1 - 4294967295)
Default Configuration
No keys are trusted.
Command Mode
Global Configuration mode.
User Guidelines
• The command is relevant for both received Unicast and Broadcast.
• If there is at least 1 trusted key, then unauthenticated messages will be ignored.
Examples
The following example authenticates the identity of system 8.
Console(config)# sntp authentication-key 8 md5 ClkKey
Console(config)# sntp trusted-key 8
Console(config)# sntp authenticate
Console(config)# sntp authentication-key 8 md5 ClkKey
Console(config)# sntp trusted-key 8
Console(config)# sntp authenticate
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sntp client poll timer
The sntp client poll timer Global Configuration mode command sets the polling time for the
Simple Network Time Protocol (SNTP) client. Use the no form of this command to return to
default configuration.
Syntax
•
sntp client poll timer
seconds
•
no sntp client poll timer
•
seconds —
Polling interval in seconds (Range: 60 - 86400)
Default Configuration
Polling interval is 1024 seconds.
Command Mode.
Global Configuration mode
User Guidelines
There are no user guidelines for this command.
Examples
The following example sets the polling time for the Simple Network Time Protocol (SNTP) client
to 120 seconds.
sntp broadcast client enable
The sntp broadcast client enable Global Configuration mode command enables Simple Network
Time Protocol (SNTP) Broadcast clients. Use the no form of this command to disable SNTP
Broadcast clients.
Syntax
•
sntp broadcast client enable
•
no sntp broadcast client enable
Default Configuration
The SNTP Broadcast client is disabled.
Command Mode
Global Configuration mode.
Console(config)# sntp client poll timer 120
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User Guidelines
•Use the
sntp client enable
Interface Configuration mode command to enable the SNTP client on
a specific interface.
Examples
The following example enables the SNTP Broadcast clients.
sntp anycast client enable
The sntp anycast client enable Global Configuration mode command enables SNTP Anycast
client. Use the no form of this command to disable the SNTP Anycast client.
Syntax
•
sntp anycast client enable
•
no sntp anycast client enable
Default Configuration
The SNTP Anycast client is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• Polling time is determined by the
sntp client poll timer
Global Configuration mode command.
•Use the
sntp client enable
Interface Configuration mode command to enable the SNTP client on
a specific interface.
Examples
The following example enables SNTP Anycast clients.
Console(config)# sntp broadcast client enable
console(config)# sntp anycast client enable
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sntp client enable
The
sntp client enable
Global Configuration mode command enables the Simple Network Time
Protocol (SNTP) Broadcast and Anycast client on an interface.
Use the no form of this command to
disable the SNTP client.
Syntax
•
sntp client enable
{
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
}
•
no sntp client enable
{
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
}
•
ethernet
interface-number
— Ethernet port number.
•
vlan
vlan-id
— VLAN number.
•
port-channel
number
— Port channel number.
Default Configuration
Disabled.
Command Mode
Global Configuration mode.
User Guidelines
•Use the
sntp Broadcast client enable
Global configuration command to enable Broadcast
clients globally.
•Use the
sntp Anycast client enable
Global configuration command to enable Anycast clients
globally.
Examples
The following example enables the SNTP client on the interface.
sntp client enable (Interface)
The sntp client enable Interface Configuration (Ethernet, port-channel, VLAN) mode command
enables the Simple Network Time Protocol (SNTP) client on an interface. This applies to both
receive Broadcast and Anycast updates. Use the no form of this command to disable the SNTP
client.
Syntax
•
sntp client enable
•
no sntp client enable
Console (config)# sntp client enable
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Default Configuration
The SNTP client is disabled on an interface.
Command Mode
Interface configuration (Ethernet, port-channel, VLAN) mode.
User Guidelines
•Use the
sntp broadcast client enable
Global Configuration mode command to enable Broadcast
clients globally.
•Use the
sntp anycast client enable
Global Configuration mode command to enable Anycast
clients globally.
Examples
The following example enables the SNTP client on Ethernet port 1/e3.
sntp unicast client enable
The sntp unicast client enable Global Configuration mode command enables the device to use the
Simple Network Time Protocol (SNTP) to request and accept SNTP traffic from servers. Use the
no form of this command to disable requesting and accepting SNTP traffic from servers.
Syntax
•
sntp unicast client enable
•
no sntp unicast client enable
Default Configuration
The SNTP Unicast client is disabled.
Command Mode
Global Configuration mode.
Console(config)# interface ethernet 1/e3
Console(config-if)# sntp client enable
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User Guidelines
•Use the
sntp server
Global Configuration mode command to define SNTP servers.
Examples
The following example enables the device to use the Simple Network Time Protocol (SNTP) to
request and accept SNTP traffic from servers.
sntp unicast client poll
The sntp unicast client poll Global Configuration mode command enables polling for the Simple
Network Time Protocol (SNTP) predefined Unicast servers. Use the no form of this command to
disable the polling for SNTP client.
Syntax
•
sntp unicast client poll
•
no sntp unicast client poll
Default Configuration
Polling is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• Polling time is determined by the
sntp client poll timer
Global Configuration mode command.
Examples
The following example enables polling for Simple Network Time Protocol (SNTP) predefined
Unicast clients.
Console(config)# sntp unicast client enable
Console(config)# sntp unicast client poll
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sntp server
The sntp server Global Configuration mode command configures the device to use the Simple
Network Time Protocol (SNTP) to request and accept SNTP traffic from a specified server. Use the
no form of this command to remove a server from the list of SNTP servers.
Syntax
•
sntp server
{
ip4-address
|
ip6-address
|
hostname
}
[
poll
] [
key
keyid
]
•
no sntp server
{
ip4-address
|
ip6-address
|
hostname
}
•
ip4-address
— IPv4 server address.
•
ipv6-address —
IPv6 server address. When the IPv6 address is a Link Local address (IPv6Z
address), the outgoing interface name must be specified. Refer to the usage guidelines for
the interface name syntax.
•
hostname —
Hostname of the server. (Range: 1 - 158 characters)
•
poll
—
Enable polling.
•
keyid —
Authentication key to use when sending packets to this peer.
(Range:1 - 4294967295)
Default Configuration
No servers are defined.
Command Mode
Global Configuration mode.
User Guidelines
• Up to 8 SNTP servers can be defined.
•Use the
sntp unicast client enable
Global Configuration mode command to enable predefined
Unicast clients globally.
• To enable polling you should also use the
sntp unicast client poll
Global Configuration mode
command for global enabling.
• Polling time is determined by the
sntp client poll timer
Global Configuration mode command.
• Polling time is determined by the
sntp client poll timer
Global Configuration mode command.
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> |
0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
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• If the egress interface is not specified, the default interface is selected. Specifying interface
zone=0 is the same as not defining an egress interface.
Examples
The following example configures the device to accept SNTP traffic from the server on 192.1.1.1.
Console(config)# sntp server 192.1.1.1
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show clock
The show clock User EXEC mode command displays the time and date from the system clock.
Syntax
•
show clock [detail]
•
detail
—
Shows timezone and summertime configuration.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
• The symbol that precedes the show clock display indicates the following:
Symbol Description
* Time is not authoritative.
(blank) Time is authoritative.
. Time is authoritative, but SNTP is not synchronized.
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Example
The following example displays the time and date from the system clock.
show sntp configuration
The show sntp configuration Privileged EXEC mode command shows the configuration of the
Simple Network Time Protocol (SNTP).
Syntax
•
show sntp configuration
Default Configuration
This command has no default configuration.
Console> show clock
15:29:03 PDT(UTC-7) Jun 17 2002
Time source is SNTP
Console> show clock detail
15:29:03 PDT(UTC-7) Jun 17 2002
Time source is SNTP
Time zone:
Acronym is PST
Offset is UTC-8
Summertime:
Acronym is PDT
Recurring every year.
Begins at first Sunday of April at 2:00.
Ends at last Sunday of October at 2:00.
Offset is 60 minutes.
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Command Mode
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays the current SNTP configuration of the device.
show sntp status
The show sntp status Privileged EXEC mode command shows the status of the Simple Network
Time Protocol (SNTP).
Syntax
•
show sntp status
Console# show sntp configuration
Polling interval: 7200 seconds
MD5 Authentication keys: 8, 9
Authentication is required for synchronization.
Trusted Keys: 8, 9
Unicast Clients: Enabled
Unicast Clients Polling: Enabled
Server Polling Encryption Key
----------- ------- --------------
176.1.1.8 Enabled 9
176.1.8.179 Disabled Disabled
Broadcast Clients: Enabled
Anycast Clients: Enabled
Broadcast and Anycast Interfaces: 1/e1, 1/e3
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Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example shows the status of the SNTP.
Console# show sntp status
Clock is synchronized, stratum 4, reference is 176.1.1.8, unicast
Reference time is AFE2525E.70597B34 (00:10:22.438 PDT Jul 5 1993)
Unicast servers:
Server Status Last response Offset
[mSec]
Delay
[mSec]
----------- ------- ---------------------------- ------ ------
176.1.1.8 Up 19:58:22.289 PDT Feb 19 2002 7.33 117.79
176.1.8.179 Unknown 12:17.17.987 PDT Feb 19 2002 8.98 189.19
Anycast server:
Server Interface Status Last response Offset Delay
[mSec] [mSec]
--------- ------- ----- ----------------------------- ------ -----
176.1.11.8 VLAN 118 Up
9:53:21.789 PDT Feb 19 2002
7.19 119.89
Broadcast:
Interface Interface Last response
--------- --------- ----------------------------
176.9.1.1 VLAN 119 19:17:59.792 PDT Feb 19 2002
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Configuration and Image Files 155
8
Configuration and Image Files
copy
The copy Privileged EXEC mode command copies any file from a source to a destination.
Syntax
•
copy
source-url destination-url
[
snmp
]
•
source-url
— The location URL or reserved keyword of the source file to be copied.
•
destination-url
— The destination file URL or reserved keyword of the destination file.
•
snmp —
Used only when copying from/to
startup-config
. Specifies that the
destination/source file is in SNMP format
The following table displays keywords and URL prefixes:
Keyword Source or destination
flash Source or destination URL for Flash memory. It’s the default in case a URL is spec-
ified without a prefix
running-config Represents the current running configuration file.
startup-config Represents the startup configuration file.
image If source file, represent the active image file. If destination file, represent the
non-active image file.
boot Boot file.
tftp: Source or destination URL for a TFTP network server. The syntax for this alias is
tftp://host/[directory]/filename. The host can be either IP address or hostname. An
out-of-band IP address can be specified as described in the usage guidelines.
xmodem: Source for the file from a serial connection that uses the Xmodem protocol.
unit://member/
startup-config Configuration file used during initialization (startup) on one of the units.
unit://member/
image Image file on one of the units. For copy from master to all units you can use "*" in
the member field.
null: Null destination for copies or files. A remote file can be copied to null to determine
its size.
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Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
• The location of a file system dictates the format of the source or destination URL.
• The entire copying process may take several minutes and differs from protocol to protocol
and from network to network.
Understanding Invalid Combinations of Source and Destination
Some invalid combinations of source and destination exist. Specifically, the following cannot be
copied:
• If the source file and destination file are the same file.
•
xmodem
cannot be a destination.
Can only be copied to
image
,
boot
and
null
.
•
tftp
cannot be the source and destination on the same copy.
• *.prv files can't be copied.
• Copy to or from the slave units is for image and boot files only.
The following table describes copy characters:
Copying image file from a Server to Flash Memory
Use the
copy source-url image
command to copy an image file from a server to Flash memory.
Copying boot file from a Server to Flash Memory
Use the
copy source-url boot
command to copy a boot file from a server to Flash memory.
Copying a Configuration File from a Server to the Running Configuration
backup-config Represents the backup configuration file.
unit://member/
backup-config Backup configuration file on one of the units.
logging Copy from a syslog file.
Character Description
!For network transfers, indicates that the copy process is taking place. Each
exclamation point indicates successful transfer of ten packets (512 bytes each).
.For network transfers, indicates that the copy process timed out. Generally, many
periods in a row means that the copy process may fail.
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Use the
copy source-url running-config
command to load a ’configuration file’ from a network
server to the device ’running configuration’. The configuration is added to the ’running
configuration’ as if the commands were typed in the command-line interface (CLI). The
resulting configuration file is a combination of the previous ’running configuration’ and the
loaded ’configuration file", with the loaded "configuration file’ having precedence.
Copying a Configuration File from a Server to the Startup Configuration
Use the
copy source-url startup-config
command to copy a "configuration file" from a network
server to the device ’startup configuration’. These commands replace the startup configuration
file with the copied configuration file.
Storing the Running or Startup Configuration on a Server
Use the copy
running-config
destination-url
command to copy the current configuration file to
a network server using TFTP. Use the copy
startup-config
destination-url
command to copy
the ’startup configuration’ file to a network server.
The configuration file copy can serve as a backup copy.
Saving the Running Configuration to the Startup Configuration
Use the copy
running-config
startup-config
command to copy the ’running configuration’ to
the ’startup configuration’.
Backup the Running Configuration or Startup Configuration to a Backup Configuration
file
Use the
copy
running-config flash: //FILE_NAME
to backup the running configuration to the
backup configuration file. Use the
copy
startup-config flash: //FILE_NAME
command to
backup the startup configuration to the backup configuration file.
Example
The following example copies a system image named file1 from the TFTP server with an IP
address of 172.16.101.101 to non active image file.
console# copy tftp://172.16.101.101/file1 image
Accessing file 'file1' on 172.16.101.101...
Loading file1 from 172.16.101.101:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!! [OK]
Copy took 0:01:11 [hh:mm:ss]
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delete
The delete Privileged EXEC mode command deletes a file from a flash memory device.
Syntax
•
delete
url
•
url
— The location URL or reserved keyword of the file to be deleted. (Range: 1 - 160
characters)
The following table displays keywords and URL prefixes:
Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
• *.sys, *.prv, image-1 and image-2 files cannot be deleted.
Examples
The following example deletes file test from flash memory.
Keyword Source or Destination
flash: Source or destination URL for flash memory. It is the default in case a URL is
specified without a prefix.
startup-config Represents the startup configuration file.
Console# delete flash:test
Delete flash:test? [confirm]
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delete startup-config
The delete startup-config Privileged EXEC mode command deletes the startup-config file.
Syntax
•
delete startup-config
Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example deletes the startup-config file.
dir
The dir Privileged EXEC mode command displays a list of files on a flash file system.
Syntax
•
dir
Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# delete startup-config
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Examples
The following example displays files in the flash directory
.
more
The more Privileged EXEC mode command displays a file.
Syntax
•
more
url
•
url
— The location URL or reserved keyword of the file to be displayed. (Range: 1 - 160
characters)
Console# dir
Directory of flash:
File Name Permission Size Modification Date Modification Time
--------- ---------- ---- ----------------- -----------------
Image-1 rw 4325376 01-Jun-2003 01:04:21
Image-2 rw 4325376 01-Jun-2003 21:28:10
aaafile.prv -- 131072 01-Jun-2003 01:01:19
sshkeys.prv -- 262144 01-Jun-2003 01:01:05
syslog1.sys r- 262144 01-Jun-2003 02:22:48
syslog2.sys r- 262144 01-Jun-2003 02:22:48
directry.prv -- 262144 01-Jun-2003 01:01:02
startup-config rw 1523 08-Feb-2005 09:02:31
Total size of flash: 15597568 bytes
Free size of flash: 5759287 bytes
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The following table displays keywords and URL prefixes:
Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
• Files are displayed in ASCII format, except for image files, which are displayed in hexadecimal
format.
• *.prv and *.sys files cannot be displayed.
Keyword Source or Destination
flash: Source or destination URL for flash memory. It is the default in case a URL is
specified without a prefix.
running-config Represents the current running configuration file.
startup-config Represents the startup configuration file.
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Example
The following example displays the contents of file configuration.bak.
rename
The rename Privileged EXEC mode command renames a file.
Syntax
•
rename
url new-url
•
url
— The location URL. (Range: 1 - 160 characters)
•
new-url
— New URL. (Range: 1 - 160 characters)
The following table displays keywords and URL prefixes:
Console# more configuration.bak
interface range ethernet 1/e(1-4)
duplex half
exit
interface range ethernet 2/g(1-4)
switchport mode general
exit
vlan database
vlan 2
exit
interface range ethernet 2/g(1-4)
switchport general allowed vlan add 2
exit
interface range ethernet 1/e(1-4)
no negotiation
exit
Keyword Source or Destination
flash: Source or destination URL for flash memory. It is the default in case a URL is
specified without a prefix.
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Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
• *.sys and *.prv files cannot be renamed.
Examples
The following example renames the configuration backup file.
boot system
The boot system Privileged EXEC mode command specifies the system image that the device
loads at startup.
Syntax
•
boot system
[
unit
unit
] {
image-1
|
image-2
}
•
unit
— Specifies the unit number.
•
image-1
— Specifies image 1 as the system startup image.
•
image-2
— Specifies image 2 as the system startup image.
Default Configuration
If the unit number is unspecified, the default setting is the master unit number.
Command Mode
Privileged EXEC mode.
User Guidelines
•Use the
show bootvar
command to find out which image is the active image.
Examples
The following example loads system image 1 at device startup.
Console# rename configuration.bak m-config.bak
Console# boot system image-1
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show running-config
The show running-config Privileged EXEC mode command displays the contents of the currently
running configuration file.
Syntax
•
show running-config
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• This command displays the factory default settings at the end of the running configuration file
contents.
Example
The following example displays the contents of the running configuration file.
console# show running-config
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
interface ethernet e2
port monitor e3
port monitor e4
port monitor e5
port monitor e6
exit
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Default settings:
Service tag: service tag 0
SW version 1.0.0.1 (date Aug 9 2007 time 10:06:42)
Fast Ethernet Ports
-------------------------------
no shutdown
speed 100
duplex full
negotiation
flow-control off
mdix auto
no back-pressure
Gigabit Ethernet Ports
----------------------------
no shutdown
speed 1000
duplex full
negotiation
flow-control off
mdix auto
no back-pressure
console#
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show startup-config
The show startup-config Privileged EXEC mode command displays the contents of the startup
configuration file.
Syntax
•
show startup-config
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays the contents of the running configuration file.
Console# show startup-config
software version 1.1
hostname device
interface ethernet 1/e1
ip address 176.242.100.100 255.255.255.0
duplex full
speed 100
interface ethernet 1/e2
ip address 176.243.100.100 255.255.255.0
duplex full
speed 100
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show bootvar
The show bootvar Privileged EXEC mode command displays the active system image file that is
loaded by the device at startup.
Syntax
•
show bootvar
[
unit
unit
]
•
unit
— Specifies the unit number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays the active system image file that is loaded by the device at startup.
Console# show bootvar
Image Filename Version Date Status
1 image-1 1.0.0.1 Active*
2 image-2 1.0.0.2 Not active
"*" designates that the image was selected for the next boot
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DHCP Snooping 169
9
DHCP Snooping
ip dhcp snooping
The ip dhcp snooping Global Configuration mode command globally enables DHCP snooping.
Use the no form of this command to return to the default settings.
Syntax
• ip dhcp snooping
• no ip dhcp snooping
Default Configuration
The default configuration is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• For any DHCP snooping configuration to take effect, you must globally enable DHCP snooping.
DHCP snooping is not active until you enable snooping on a VLAN by using the
ip dhcp
snooping vlan
global configuration command.
Example
The following example globally enables DHCP snooping:.
ip dhcp snooping vlan
The ip dhcp snooping vlan Global Configuration mode command enables DHCP snooping on a
VLAN. Use the no form of this command to disable DHCP snooping on a VLAN.
Syntax
•
ip dhcp snooping vlan
vlan-id
•
no ip dhcp snooping vlan
vlan-id
•
vlan-id
— Specifies the VLAN ID.
console(config)# ip dhcp snooping
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Default Configuration
The default configuration is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• You must first globally enable DHCP snooping before enabling DHCP snooping on a VLAN.
Example
The following example enables DHCP snooping on VLAN 1000:
ip dhcp snooping trust
The ip dhcp snooping trust Interface Configuration (Ethernet, Port-channel) mode command
configures a port as trusted for DHCP snooping purposes. Use the no form of this command to
return to the default settings.
Syntax
• ip dhcp snooping trust
• no ip dhcp snooping trust
Default Configuration
The default configuration is that the interface is not trusted.
Command Mode
Interface Configuration (Ethernet, Port-channel) mode.
User Guidelines
• Configure as trusted ports those that are connected to a DHCP server or to other switches or
routers. Configure as untrusted ports those that are connected to DHCP clients.
Example
The following example configures Ethernet port 1/e15 as trusted for DHCP snooping purposes.
console(config)# ip dhcp snooping vlan 1000
console(config)# interface ethernet 1/e15
console(config-if)# ip dhcp snooping trust
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ip dhcp snooping information option allowed-untrusted
The ip dhcp snooping information option allowed-untrusted Global Configuration mode
command configures a switch to accept DHCP packets with option-82 information from an
untrusted port. Use the no form of this command to configure the switch to drop these packets from
an untrusted port.
Syntax
•
ip dhcp snooping information option allowed-untrusted
•
no ip dhcp snooping information option allowed-untrusted
Default Configuration
The default configuration is to discard DHCP packets with option-82 information from an
untrusted port.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures a switch to accept DHCP packets with option-82 information
from an untrusted port:.
ip dhcp snooping verify
The ip dhcp snooping verify Global Configuration mode command configures a switch to verify
on an untrusted port that the source MAC address in a DHCP packet matches the client hardware
address. Use the no form of this command to not verify the MAC addresses.
Syntax
• ip dhcp snooping verify
• no ip dhcp snooping verify
Default Configuration
The default configuration is that the switch verifies the source MAC address in a DHCP packet
that is received on untrusted ports matches the client hardware address in the packet.
console(config)#ip dhcp snooping information option allowed-
untrusted
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Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures a switch to verify on an untrusted port that the source MAC
address in a DHCP packet matches the client hardware address.
ip dhcp snooping database
The ip dhcp snooping database Global Configuration mode command configures the DHCP
snooping binding file. Use the no form of this command to delete the binding file.
Syntax
• ip dhcp snooping database
• no ip dhcp snooping database
Default Configuration
The URL is not defined.
Command Mode
Global Configuration mode.
User Guidelines
• To ensure that the lease time in the database is accurate, Simple Network Time Protocol (SNTP)
is enabled and configured.
• The switch writes binding changes to the binding file only when the switch system clock is
synchronized with SNTP.
Example
The following example configures the DHCP snooping binding file.
console(config)#ip dhcp snooping verify
console(config)#ip dhcp snooping database
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ip dhcp snooping database update-freq
The ip dhcp snooping database update-freq Global Configuration mode command configures the
update frequency of the DHCP snooping binding file. Use the no form of this command to return to
default.
Syntax
•
ip dhcp snooping database update-freq
seconds
• no ip dhcp snooping database update-freq
•
seconds
— Specifies the update frequency in seconds. (Range 600 – 86400)
Default Configuration
The default configuration is 1200.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the update frequency of the DHCP snooping binding file to be
24000 seconds.
ip dhcp snooping binding
The ip dhcp snooping binding Privileged EXEC mode command configures the DHCP snooping
binding database and adds binding entries to the database. Use the no form of this command to
delete entries from the binding database.
Syntax
•
ip dhcp snooping binding
mac-address vlan-id ip-address
{
ethernet
interface
|
port-channel
port-channel-number
}
expiry
seconds
•
no ip dhcp snooping database binding
mac-address vlan-id
•
mac-address
— Specifies a MAC address.
•
vlan-id
— Specifies a VLAN number.
•
ip-address
— Specifies an IP address.
•
interface
— Specifies an Ethernet port.
console(config)# ip dhcp snooping database update-freq 24000
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•
port-channel-number
— Specifies a Port-channel number.
•
expiry seconds
— Specifies the interval, in seconds, after which the binding entry is no
longer valid. (Range 10 – 4294967295 seconds)
Default Configuration
The default configuration is that no static binding exists.
Command Mode
Privileged EXEC mode.
User Guidelines
• After entering this command an entry is added to the DHCP snooping database. If a DHCP
snooping binding file exists, the entry is also added to that file.
• The entry is displayed in the show commands as a “DHCP Snooping entry”.
Example
The following example configures the DHCP snooping binding database and adds binding entries
to the database.
clear ip dhcp snooping database
The clear ip dhcp snooping database Privileged EXEC mode command clears the DHCP
snooping binding database.
Syntax
• clear ip dhcp snooping database
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# ip dhcp snooping binding 3aa2.64b3.a245 1000
131.108.1.27 ethernet 1/e16 expiry 3000
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Example
The following example clears the DHCP binding database:
show ip dhcp snooping
The show ip dhcp snooping User EXEC mode command displays the DHCP snooping
configuration.
Syntax
•
show ip dhcp
snooping [
ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— Specifies an Ethernet port.
•
port-channel-number
— Specifies a Port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# clear ip dhcp snooping database
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Example
The following example displays the DHCP snooping configuration.
show ip dhcp snooping binding
The show ip dhcp snooping binding User EXEC mode command displays the DHCP snooping
binding database and configuration information for all interfaces on a switch.
Syntax
•
show ip dhcp snooping binding
[
mac-address
mac-address
] [
ip-address
ip-address
] [
vlan
vlan-id
] [
ethernet
interface
|
port-channel
port-channel-number
]
•
mac-address
— Specifies a MAC address.
•
ip-address
— Specifies an IP address.
•
vlan-id
— Specifies a VLAN number.
•
interface
— Specifies an Ethernet port.
•
port-channel-number
— Specifies a Port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
console> show ip dhcp snooping
DHCP snooping is Enabled
DHCP snooping is configured on following VLANs: 2
DHCP snooping database is Disabled
Verification of hwaddr field is Enabled
DHCP snooping file update frequency is configured to: 1200
seconds
Interface
Trusted
----
-----------
e15
yes
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User Guidelines
There are no user guidelines for this command.
Example
The following example displays the DHCP snooping configuration.
Console# show ip dhcp snooping binding
Total number of binding: 2
MAC
Adreess
IP
Address
Lease
(sec)
Type VLAN
Interface
--------- -------- --------- --------- ---------
--------
console#
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Ethernet Configuration Commands 179
10
Ethernet Configuration Commands
interface ethernet
The interface ethernet Global Configuration mode command enters the interface configuration
mode to configure an Ethernet type interface.
Syntax
•
interface ethernet
interface
•
interface —
Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables configuring Ethernet port 5/e18.
interface range ethernet
The interface range ethernet Global Configuration mode command configures multiple Ethernet
type interfaces at the same time.
Syntax
•
interface range ethernet
{
port-range
|
all
}
•
port-range —
List of valid ports. Where more than one port is listed, separate non-
consecutive ports with a comma and no spaces, use a hyphen to designate a range of ports.
•
all
— All Ethernet ports.
Console(config)# interface ethernet 5/e18
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Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Commands under the interface range context are executed independently on each active interface
in the range. If the command returns an error on one of the active interfaces, it does not stop
executing commands on other active interfaces.
Example
The following example shows how ports 5/e18 to 5/e20 and 3/e1 to 3/24 are grouped to receive the
same command.
shutdown
The shutdown Interface Configuration (Ethernet, port-channel) mode command disables an
interface. Use the no form of this command to restart a disabled interface.
Syntax
•
shutdown
•
no shutdown
Default Configuration
The interface is enabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example disables Ethernet port 1/e5 operations.
Console(config)# interface range ethernet 5/e18-5/e20,3/e1-3/e24
Console(config-if)#
Console(config)# interface ethernet 1/e5
Console(config-if)# shutdown
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The following example restarts the disabled Ethernet port.
description
The description Interface Configuration (Ethernet, port-channel) mode command adds a
description to an interface. Use the no form of this command to remove the description.
Syntax
•
description
string
•
no description
•
string
— Comment or a description of the port to enable the user to remember what is
attached to the port. (Range: 1 - 64 characters)
Default Configuration
The interface does not have a description.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example adds a description to Ethernet port 1/e5.
speed
The speed Interface Configuration (Ethernet, port-channel) mode command configures the speed
of a given Ethernet interface when not using auto-negotiation. Use the no form of this command to
restore the default configuration.
Console(config)# interface ethernet 1/e5
Console(config-if)# no shutdown
Console(config)# interface ethernet 1/e5
Console(config-if)# description "RD SW#3"
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Syntax
•
speed
{
10
|
100
|
1000
}
•
10
— Forces 10 Mbps operation.
•
100
— Forces 100 Mbps operation.
•
1000
— Forces 1000 Mbps operation.
Default Configuration
Maximum port capability.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example configures the speed operation of Ethernet port 1/e5 to 100 Mbps operation.
duplex
The duplex Interface Configuration (Ethernet) mode command configures the full/half duplex
operation of a given Ethernet interface when not using auto-negotiation. Use the no form of this
command to restore the default configuration.
Syntax
•
duplex
{
half
|
full
}
•
no duplex
•
half
— Forces half-duplex operation
•
full
— Forces full-duplex operation
Default Configuration
The interface is set to full duplex.
Command Mode
Interface Configuration (Ethernet) mode.
Console(config)# interface ethernet 1/e5
Console(config-if)# speed 100
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User Guidelines
• When configuring a particular duplex mode on the port operating at 10/100 Mbps, disable the
auto-negotiation on that port.
• Half duplex mode can be set only for ports operating at 10 Mbps or 100 Mbps.
Example
The following example configures the duplex operation of Ethernet port 1/e5 to full duplex
operation.
negotiation
The negotiation command enables auto negotiation operation for the speed and duplex parameters
of a given interface. Use the no form of this command to disable it.
Syntax
•
negotiation
[capability1 [capability2…capability5]]
•
no negotiation
•
capability
— Specifies the capabilities to advertise. (Possible values: 10h, 10f, 100h,100f,
1000f)
Default Configuration
Auto-negotiation is enabled.
User Guidelines
• There are no user guidelines for this command.
Example
The following example enables auto negotiation of Ethernet port 5.
Console(config)# interface ethernet 1/e5
Console(config-if)# duplex full
(config)# interface ethernet 1/e5
(config-if)# negotiation
(config-if)#
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flowcontrol
The flowcontrol Interface Configuration (Ethernet, port-channel) mode command configures flow
control on a given interface. Use the no form of this command to disable flow control.
Syntax
•
flowcontrol
{
auto | on
|
off
}
•
no flowcontrol
•
auto
— Indicates auto-negotiation
•
on
— Enables flow control.
•
off
— Disables flow control.
Default Configuration
Flow control is off.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• Negotiation should be enabled for
flow control auto
.
Example
The following example enables flow control on port 1/e5.
mdix
The mdix Interface Configuration (Ethernet) mode command enables cable crossover on a given
interface. Use the no form of this command to disable cable crossover.
Syntax
•
mdix {on | auto}
•
no mdix
•
on
— Manual mdix
•
auto
— Automatic mdi/mdix
Console(config)# interface ethernet 1/e5
Console(config-if)# flowcontrol on
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Default Configuration
The default setting is
on
.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
•
Auto:
All possibilities to connect a PC with cross or normal cables are supported and are
automatically detected.
•
On
: It is possible to connect to a PC only with a normal cable and to connect to another device
only with a cross cable.
•
No
: It is possible to connect to a PC only with a cross cable and to connect to another device only
with a normal cable.
Example
The following example enables automatic crossover on port 1/e5.
back-pressure
The back-pressure Interface Configuration (Ethernet) mode command enables back pressure on a
given interface. Use the no form of this command to disable back pressure.
Syntax
•
back-pressure
•
no back-pressure
Default Configuration
Back pressure is enabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• Back pressure cannot be configured on trunks.
Console(config)# interface ethernet 1/e5
Console(config-if)# mdix auto
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Example
The following example enables back pressure on port 1/e5.
clear counters
The clear counters User EXEC mode command clears statistics on an interface.
Syntax
•
clear counters
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
Valid Ethernet port.
(Full syntax:
unit/port
)
•
port-channel-number —
Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example clears the counters for interface 1/e1.
set interface active
The set interface active Privileged EXEC mode command reactivates an interface that was
shutdown.
Syntax
•
set interface active
{
ethernet
interface
|
port-channel
port-channel-number
}
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number —
Valid port-channel number.
Default Configuration
This command has no default configuration.
Console(config)# interface ethernet 1/e5
Console(config-if)# back-pressure
Console> clear counters ethernet 1/e1
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Command Mode
Privileged EXEC mode.
User Guidelines
• This command is used to activate interfaces that were configured to be active, but were shutdown
by the system for some reason (for example
port security
.
Example
The following example reactivates interface 1/e5.
show interfaces advertise
The show interfaces advertise Privileged EXEC mode command displays autonegotiation data.
Syntax
•
show interfaces advertise [ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Modes
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# set interface active ethernet 1/e5
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Examples
The following examples display autonegotiation information.
show interfaces configuration
The show interfaces configuration Privileged EXEC mode command displays the configuration
for all configured interfaces.
Console# show interfaces advertise
Port Type Neg Operational Link Advertisement
---- ----------- ------- ------------------------------
1/e1 100M-Copper Enabled --
1/e2 100M-Copper Enabled --
1/e3 100M-Copper Enabled --
1/e4 100M-Copper Enabled --
1/e5 100M-Copper Enabled 100f, 100h, 10f, 10h
1/e6 100M-Copper Enabled --
1/e7 100M-Copper Enabled --
1/e8 100M-Copper Enabled --
1/e9 100M-Copper Enabled --
1/e10 100M-Copper Enabled --
1/e11 100M-Copper Enabled --
1/e12 100M-Copper Enabled --
1/e13 100M-Copper Enabled --
1/e14 100M-Copper Enabled --
1/e15 100M-Copper Enabled --
1/e16 100M-Copper Enabled --
1/e17 100M-Copper Enabled --
1/e18 100M-Copper Enabled --
1/e19 100M-Copper Enabled --
1/e20 100M-Copper Enabled --
Ethernet Configuration Commands 189
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Syntax
•
show interfaces configuration [ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Modes
Privileged
EXEC mode.
User Guidelines
• To view information on autonegotiation capabilities, use the
show interfaces advertise
Privileged EXEC mode command.
Example
The following example displays the configuration of all configured interfaces.
Console# show interfaces configuration
Port Type Duplex Speed Neg Flow
Ctrl
Link
State
Back
Pressure
Mdix
Mode
---- -------
----
------ ----- ------- ---- ----- -------- ----
1/e1 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e2 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e3 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e4 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e5 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e6 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e7 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
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show interfaces status
The show interfaces status Privileged EXEC mode command displays the status of all configured
interfaces.
Syntax
•
show interfaces status [ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number —
A valid port-channel number.
Default Configuration
This command has no default configuration.
1/e8 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e9 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e10 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e11 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e12 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e13 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e14 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e15 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e16 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e17 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e18 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
1/e19 100M-
Copper
Full 100 Enabled Off Up Disabled Auto
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Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the status of all configured interface.
Console# show interfaces status
Port Type Duplex Speed Neg Flow
Ctrl
Link
State
Back
Pressure
Mdix
Mode
---- ----------- ------ ----- ------- ---- ----- -------- ----
1/e1 100M-Copper -- -- -- -- Down -- --
1/e2 100M-Copper -- -- -- -- Down -- --
1/e3 100M-Copper -- -- -- -- Down -- --
1/e4 100M-Copper -- -- -- -- Down -- --
1/e5 100M-Copper Full 100 Enabled Off Up Disabled On
1/e6 100M-Copper -- -- -- -- Down -- --
1/e7 100M-Copper -- -- -- -- Down -- --
1/e8 100M-Copper -- -- -- -- Down -- --
1/e9 100M-Copper -- -- -- -- Down -- --
1/e10 100M-Copper -- -- -- -- Down -- --
1/e11 100M-Copper -- -- -- -- Down -- --
1/e12 100M-Copper -- -- -- -- Down -- --
1/e13 100M-Copper -- -- -- -- Down -- --
1/e14 100M-Copper -- -- -- -- Down -- --
1/e15 100M-Copper -- -- -- -- Down -- --
1/e16 100M-Copper -- -- -- -- Down -- --
1/e17 100M-Copper -- -- -- -- Down -- --
1/e18 100M-Copper -- -- -- -- Down -- --
1/e19 100M-Copper -- -- -- -- Down -- --
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show interfaces description
The show interfaces description Privileged EXEC mode command displays the description for all
configured interfaces.
Syntax
•
show interfaces description [ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
Valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Modes
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays descriptions of configured interfaces.
Console# show interfaces description
Port
Description
----
-----------
1/e1
lab
1/e2
1/e3
1/e4
1/e5
1/e6
ch1
ch2
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show interfaces counters
The show interfaces counters User EXEC mode command displays traffic seen by the physical
interface.
Syntax
•
show interfaces counters
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number —
A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Modes
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays traffic seen by the physical interface.
Console# show interfaces counters
Port InOctets InUcastPkts InMcastPkts InBcastPkts
---- -------- ----------- ----------- -----------
1/e1 183892 0 0 0
2/e1 0 0 0 0
3/e1 123899 0 0 0
Port OutOctets OutUcastPkts OutMcastPkts OutBcastPkts
----- ---------- ------------ ------------ ------------
1/e1 9188 0 0 0
2/e1 0 0 0 0
3/e1 8789 0 0 0
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The following example displays counters for Ethernet port 1/e1.
Ch InOctets InUcastPkts InMcastPkts InBcastPkts
--- -------- ---------- ----------- -----------
1 27889 0 0 0
Ch OutOctets OutUcastPkts OutMcastPkts OutBcastPkts
--- --------- ------------ ------------ ------------
1 23739 0 0 0
Console# show interfaces counters ethernet 1/e1
Port InOctets InUcastPkts InMcastPkts InBcastPkts
------ ----------- -------------- ----------- -----------
1/e1 183892 0 0 0
Port OutOctets OutUcastPkts OutMcastPkts OutBcastPkts
------ ----------- -------------- ------------ ------------
1/e1 9188 0 0 0
FCS Errors: 8
Single Collision Frames: 0
Late Collisions: 0
Oversize Packets: 0
Internal MAC Rx Errors: 0
Symbol Errors: 0
Received Pause Frames: 0
Transmitted Pause Frames: 0
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The following table describes the fields shown in the display.
port storm-control include-multicast
The port storm-control include-multicast Interface Configuration (Ethernet) mode command
counts Multicast packets in Broadcast storm control. Use the no form of this command to disable
counting Multicast packets.
Syntax
•
port storm-control include-multicast
•
no port storm-control include-multicast
Count unknown Unicast packets.
Default Configuration
Multicast packets are not counted.
Field Description
InOctets Counted received octets.
InUcastPkts Counted received Unicast packets.
InMcastPkts Counted received Multicast packets.
InBcastPkts Counted received Broadcast packets.
OutOctets Counted transmitted octets.
OutUcastPkts Counted transmitted Unicast packets.
OutMcastPkts Counted transmitted Multicast packets.
OutBcastPkts Counted transmitted Broadcast packets.
FCS Errors Counted received frames that are an integral number of octets in length but do
not pass the FCS check.
Single Collision Frames Counted frames that are involved in a single collision, and are subsequently
transmitted successfully.
Late Collisions Number of times that a collision is detected later than one slotTime into the
transmission of a packet.
Oversize Packets Counted frames received that exceed the maximum permitted frame size.
Internal MAC Rx Errors Counted frames for which reception fails due to an internal MAC sublayer
receive error.
Received Pause Frames Counted MAC Control frames received with an opcode indicating the PAUSE
operation.
Transmitted Pause Frames Counted MAC Control frames transmitted on this interface with an opcode
indicating the PAUSE operation.
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Command Modes
Interface Configuration (Ethernet) mode.
User Guidelines
• To control Multicasts storms, use the
port storm-control broadcast enable
and
port storm-
control broadcast rate
commands.
Example
The following example enables counting Broadcast and Multicast packets on Ethernet port 2/e3.
port storm-control broadcast enable
The port storm-control broadcast enable Interface Configuration (Ethernet) mode command
enables Broadcast storm control. Use the no form of this command to disable Broadcast storm
control.
Syntax
•
port storm-control broadcast enable
•
no port storm-control broadcast enable
Default Configuration
Broadcast storm control is disabled.
Command Modes
Interface Configuration (Ethernet) mode.
User Guidelines
•Use the
port storm-control broadcast rate
Interface Configuration (Ethernet) mode command,
to set the maximum allowable Broadcast rate.
•Use the
port storm-control include-multicast
Interface Configuration (Ethernet) mode
command to count Multicast packets in the storm control calculation.
• The command can be enabled on specific port only if
rate-limit
interface configuration
command is not enabled on that port.
Console(config)# interface ethernet 2/e3
Console(config-if)# port storm-control include-multicast
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Example
The following example enables storm control on Ethernet port 1/e5.
port storm-control broadcast rate
The port storm-control broadcast rate Interface Configuration (Ethernet) mode command
configures the maximum Broadcast rate. Use the no form of this command to return to the default
configuration.
Syntax
•
port storm-control broadcast rate
rate
•
no port storm-control broadcast rate
•
rate
—Maximum kilobytes per second of Broadcast and Multicast traffic on a port. (Range:
70 - 1000000)
Default Configuration
The default configuration is disabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
•Use the
port storm-control broadcast enable
Interface Configuration mode command to
enable Broadcast storm control.
Example
The following example configures the maximum storm control Broadcast rate at 900 Kbits/Sec on
Ethernet port 1/e5.
show ports storm-control
The show ports storm-control Privileged EXEC mode command displays the storm
control configuration.
Console(config)# interface ethernet 1/e5
Console(config-if)# port storm-control broadcast enable
Console(config)# interface ethernet 1/e5
Console(config-if)# port storm-control broadcast rate 900
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Syntax
•
show ports storm-control
[
interface
]
•
interface —
A valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Modes
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the storm control configuration.
Console# show ports storm-control
Port State Rate
[Kbits/
Sec]
Included
---- -------- --------- ------------------------------.
1/e1 Disabled 3500 Broadcast
1/e2 Disabled 3500 Broadcast
1/e3 Disabled 3500 Broadcast
1/e4 Disabled 3500 Broadcast, Multicast
1/e5 Disabled 3500 Broadcast
1/e6 Disabled 3500 Broadcast
1/e7 Disabled 3500 Broadcast
1/e8 Disabled 3500 Broadcast
1/e9 Disabled 3500 Broadcast
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GVRP Commands 199
11
GVRP Commands
gvrp enable (Global)
GARP VLAN Registration Protocol (GVRP) is an industry-standard protocol designed to
propagate VLAN information from device to device. With GVRP, a single device is manually
configured with all desired VLANs for the network, and all other devices on the network learn
these VLANs dynamically.
The gvrp enable Global Configuration mode command enables GVRP globally. Use the no form
of this command to disable GVRP on the device.
Syntax
•
gvrp enable
no gvrp enable
Default Configuration
GVRP is globally disabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables GVRP globally on the device.
gvrp enable (Interface)
The gvrp enable Interface Configuration (Ethernet, port-channel) mode command enables GVRP
on an interface. Use the no form of this command to disable GVRP on an interface.
Console(config)# gvrp enable
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Syntax
•
gvrp enable
•
no gvrp enable
Default Configuration
GVRP is disabled on all interfaces.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• An access port does not dynamically join a VLAN because it is always a member in only one
VLAN.
• Membership in an untagged VLAN is propagated in the same way as in a tagged VLAN. That is,
the PVID is manually defined as the untagged VLAN VID.
Example
The following example enables GVRP on Ethernet port 1/e6.
garp timer
The garp timer Interface Configuration (Ethernet, Port channel) mode command adjusts the values
of the join, leave and leaveall timers of GARP applications. Use the no form of this command to
return to the default configuration.
Syntax
•
garp timer
{
join
|
leave
|
leaveall
}
timer_value
•
no garp timer
•{
join
|
leave
|
leaveall
} — Indicates the type of timer.
•
timer_value —
Timer values in milliseconds in multiples of 10. (Range: 10 - 2147483647)
Default Configuration
Following are the default timer values:
• Join timer — 200 milliseconds
• Leave timer — 600 milliseconds
• Leavall timer — 10000 milliseconds
Console(config)# interface ethernet 1/e6
Console(config-if)# gvrp enable
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Command Mode
Interface configuration (Ethernet, port-channel) mode.
User Guidelines
• The following relationship must be maintained between the timers:
– Leave time must be greater than or equal to three times the join time.
– Leave-all time must be greater than the leave time.
• Set the same GARP timer values on all Layer 2-connected devices. If the GARP timers are set
differently on Layer 2-connected devices, the GARP application will not operate successfully.
Example
The following example sets the leave timer for Ethernet port 1/e6 to 900 milliseconds.
gvrp vlan-creation-forbid
The gvrp vlan-creation-forbid Interface Configuration (Ethernet, port-channel) mode command
disables dynamic VLAN creation or modification. Use the no form of this command to enable
dynamic VLAN creation or modification.
Syntax
•
gvrp vlan-creation-forbid
•
no gvrp vlan-creation-forbid
Default Configuration
Dynamic VLAN creation or modification is enabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• This command forbids dynamic VLAN creation from the interface. The creation or modification
of dynamic VLAN registration entries as a result of the GVRP exchanges on an interface are
restricted only to those VLANs for which static VLAN registration exists.
Console(config)# interface ethernet 1/e6
Console(config-if)# garp timer leave 900
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Example
The following example disables dynamic VLAN creation on Ethernet port 1/e6.
gvrp registration-forbid
The gvrp registration-forbid Interface Configuration (Ethernet, port-channel) mode command
deregisters all dynamic VLANs on a port and prevents VLAN creation or registration on the port.
Use the no form of this command to allow dynamic registration of VLANs on a port.
Syntax
•
gvrp registration-forbid
•
no gvrp registration-forbid
Default Configuration
Dynamic registration of VLANs on the port is allowed.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example forbids dynamic registration of VLANs on Ethernet port 1/e6.
clear gvrp statistics
The clear gvrp statistics Privileged EXEC mode command clears all GVRP statistical
information.
Syntax
•
clear gvrp statistics
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number —
A valid port-channel
number.
console(config)# interface ethernet 1/e6
console(config-if)# gvrp vlan-creation-forbid
Console(config)# interface ethernet 1/e6
Console(config-if)# gvrp registration-forbid
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example clears all GVRP statistical information on Ethernet port 1/e6.
show gvrp configuration
The show gvrp configuration User EXEC mode command displays GVRP configuration
information, including timer values, whether GVRP and dynamic VLAN creation is enabled, and
which ports are running GVRP.
Syntax
•
show gvrp configuration
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— A valid
port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
console# clear gvrp statistics ethernet 1/e6
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Example
The following example displays GVRP configuration information:
show gvrp statistics
The show gvrp statistics User EXEC mode command displays GVRP statistics.
Syntax
•
show gvrp statistics
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console> show gvrp configuration
GVRP Feature is currently enabled on the device.
Timers (milliseconds)
Port(s) Status Registration Dynamic VLAN
Creation
Join Leave Leave All
------ ------- ------------ ----------- ---- ----- ---------
2/e1 Enabled Normal Enabled 200 600 10000
4/e4 Enabled Normal Enabled 200 600 10000
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Example
The following example shows GVRP statistical information.
show gvrp error-statistics
The show gvrp error-statistics User EXEC mode command displays GVRP error statistics.
Syntax
•
show gvrp error-statistics
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
A valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— A valid
port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console> show gvrp statistics
GVRP Statistics:
Legend:
rJE : Join Empty Received rJIn: Join In Received
rEmp : Empty Received rLIn: Leave In Received
rLE : Leave Empty Received rLA : Leave All Received
sJE : Join Empty Sent sJIn: Join In Sent
sEmp : Empty Sent sLIn: Leave In Sent
sLE : Leave Empty Sent sLA : Leave All Sent
Port rJE rJIn rEmp rLIn rLE rLA sJE sJIn sEmp sLIn
sLE sLA
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Example
The following example displays GVRP statistical information.
Console> show gvrp error-statistics
GVRP Error Statistics:
Legend:
INVPROT : Invalid Protocol
Id
INVALEN : Invalid Attribute
Length
INVATYP : Invalid Attribute
Type
INVEVENT: Invalid Event
INVAVAL : Invalid Attribute
Value
Port INVPROT INVATYP INVAVAL INVALEN INVEVENT
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IGMP Snooping Commands 207
12
IGMP Snooping Commands
ip igmp snooping (Global)
The ip igmp snooping Global Configuration mode command enables Internet Group Management
Protocol (IGMP) snooping. Use the no form of this command to disable IGMP snooping.
Syntax
•
ip igmp snooping
•
no ip igmp snooping
Default Configuration
IGMP snooping is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• IGMP snooping can only be enabled on static VLANs. It must not be enabled on Private VLANs
or their community VLANs.
Example
The following example enables IGMP snooping.
ip igmp snooping (Interface)
The ip igmp snooping Interface Configuration (VLAN) mode command enables Internet Group
Management Protocol (IGMP) snooping on a specific VLAN. Use the no form of this command to
disable IGMP snooping on a VLAN interface.
Syntax
•
ip igmp snooping
•
no ip igmp snooping
Console(config)# ip igmp snooping
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Default Configuration
IGMP snooping is disabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• IGMP snooping can only be enabled on static VLANs. It must not be enabled on Private VLANs
or their community VLANs.
Example
The following example enables IGMP snooping on VLAN 2.
ip igmp snooping mrouter
The ip igmp snooping mrouter Interface Configuration (VLAN) mode command enables
automatic learning of Multicast router ports in the context of a specific VLAN. Use the no form of
this command to remove automatic learning of Multicast router ports.
Syntax
•
ip igmp snooping mrouter learn-pim-dvmrp
•
no ip igmp snooping mrouter learn-pim-dvmrp
Default Configuration
Automatic learning of Multicast router ports is enabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• Multicast router ports can be configured statically using the
bridge multicast forward-all
Interface Configuration (VLAN) mode command.
Example
The following example enables automatic learning of Multicast router ports on VLAN 2.
Console(config)# interface vlan 2
Console(config-if)# ip igmp snooping
Console(config) # interface vlan 2
Console(config-if)# ip igmp snooping mrouter learn-pim-dvmrp
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ip igmp snooping host-time-out
The ip igmp snooping host-time-out Interface Configuration (VLAN) mode command configures
the host-time-out. If an IGMP report for a Multicast group was not received for a host-time-out
period from a specific port, this port is deleted from the member list of that Multicast group. Use
the no form of this command to return to the default configuration.
Syntax
•
ip igmp snooping host-time-out
time-out
•
no ip igmp snooping host-time-out
•
time-out
— Host timeout in seconds. (Range: 1 - 2147483647)
Default Configuration
The default host-time-out is 260 seconds.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
The timeout should be at least greater than 2*query_interval+max_response_time of the IGMP
router.
Example
The following example configures the host timeout to 300 seconds.
ip igmp snooping mrouter-time-out
The ip igmp snooping mrouter-time-out Interface Configuration (VLAN) mode command
configures the mrouter-time-out. The ip igmp snooping mrouter-time-out Interface Configuration
(VLAN) mode command is used for setting the aging-out time after Multicast router ports are
automatically learned. Use the no form of this command to return to the default configuration.
Syntax
•
ip igmp snooping mrouter-time-out
time-out
•
no ip igmp snooping mrouter-time-out
•
time-out
— Multicast router timeout in seconds (Range: 1 - 2147483647)
Console(config)# interface vlan 2
Console(config-if)# ip igmp snooping host-time-out 300
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Default Configuration
The default value is 300 seconds.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the Multicast router timeout to 200 seconds.
ip igmp snooping leave-time-out
The ip igmp snooping leave-time-out Interface Configuration (VLAN) mode command
configures the leave-time-out. If an IGMP report for a Multicast group was not received for a leave-
time-out period after an IGMP Leave was received from a specific port, this port is deleted from the
member list of that Multicast group. Use the no form of this command to return to the default
configuration.
Syntax
•
ip igmp snooping leave-time-out
{
time-out
|
immediate-leave
}
•
no ip igmp snooping leave-time-out
•
time-out
— Specifies the leave-time-out in seconds for IGMP queries.
(Range: 0 - 2147483647)
•
immediate-leave
— Indicates that the port should be immediately removed from the
members list after receiving IGMP Leave.
Default Configuration
The default leave-time-out configuration is 10 seconds.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• The leave timeout should be set greater than the maximum time that a host is allowed to respond
to an IGMP query.
•Use
immediate leave
only where there is just one host connected to a port.
Console(config)# interface vlan 2
Console(config-if)# ip igmp snooping mrouter-time-out 200
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Example
The following example configures the host leave-time-out to 60 seconds.
ip igmp snooping querier enable
The ip igmp snooping querier enable Interface Configuration mode command enables Internet
Group Management Protocol (IGMP) querier on a specific VLAN. Use the no form of this
command to disable IGMP querier on a VLAN interface.
Syntax
• ip igmp snooping querier enable
• no ip igmp snooping querier enable
Default Configuration
Disabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• IGMP snooping querier can be enabled on a VLAN only if IGMP snooping is enabled for that
VLAN.
• No more than one switch can be configured as an IGMP Querier for a VLAN.
• When IGMP Snooping Querier is enabled, it starts after host-time-out/2 with no IGMP traffic
detected from a Multicast router.
• The IGMP Snooping Querier would disable itself if it detects IGMP traffic from a Multicast
router. It would restart itself after host-time-out/2.
• Following are the IGMP Snooping Querier parameters as function of the IGMP Snooping
parameters:
• QueryMaxResponseTime: host-time-out/15.
• QueryInterval: host-time-out/ 3.
Console(config)# interface vlan 2
Console(config-if)# ip igmp snooping leave-time-out 60
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Example
The following example enables IGMP querier on VLAN 2.
ip igmp snooping querier address
The ip igmp snooping querier address Interface Configuration mode command defines the source
IP address used by the IGMP Snooping querier. Use the no form of this command to return to
default.
Syntax
• ip igmp snooping querier address ip-address
• no ip igmp snooping querier address
Default Configuration
If an IP address is configured for the VLAN, it is used as the source address of the IGMP
snooping querier.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• If an IP address is not configured by this command, and no IP address is configured for the
IGMP querier VLAN interface, the qurier is disabled.
console# config
console(config)# interface vlan 2
VLAN 2 does not exist.
All settings will be applied to VLAN 2 when it is created.
console(config-if-ghost-vlan)# ip igmp snooping querier enable
console(config-if-ghost-vlan)#
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Example
The following example enables IGMP querier on a specific VLAN.
show ip igmp snooping mrouter
The show ip igmp snooping mrouter User EXEC mode command displays information on
dynamically learned Multicast router interfaces.
Syntax
•
show ip igmp snooping mrouter
[
interface
vlan-id
]
•
vlan-id —
VLAN number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
console(config)# interface vlan 2
VLAN 2 does not exist.
All settings will be applied to VLAN 2 when it is created.
console(config-if-ghost-vlan)# ip igmp snooping querier enable
console(config-if-ghost-vlan)# ip igmp snooping querier address
% missing mandatory parameter
console(config-if-ghost-vlan)# ip igmp snooping querier address
1.1.1.1
console(config-if-ghost-vlan)#
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Example
The following example displays Multicast router interfaces in VLAN 1000.
show ip igmp snooping interface
The show ip igmp snooping interface User EXEC mode command displays IGMP snooping
configuration.
Syntax
•
show ip igmp snooping interface
vlan-id
•
vlan-id —
VLAN number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console> Stack# show ip igmp snooping mrouter interface 1
VLAN Ports Static Forbidden
------ ------- ---------- ------------
1 3/e41
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Example
The example displays IGMP snooping information.
show ip igmp snooping groups
The show ip igmp snooping groups User EXEC mode command displays Multicast groups
learned by IGMP snooping.
Syntax
•
show ip igmp snooping groups
[
vlan
vlan-id
]
[
address
ip-multicast-address
]
•
vlan-id —
VLAN number.
•
ip-multicast-address —
IP Multicast address.
Default Configuration
This command has no default configuration.
Console # show ip igmp snooping interface 1000
IGMP Snooping is globally enabled
IGMP Snooping admin: Enabled
Hosts and routers IGMP version: 2
IGMP snooping oper mode: Enabled
IGMP snooping querier admin: Enabled
IGMP snooping querier oper: Enabled
IGMP snooping querier address admin:
IGMP snooping querier address oper: 172.16.1.1
IGMP host timeout is 300 sec
IGMP Immediate leave is disabled. IGMP leave timeout is 10 sec
IGMP mrouter timeout is 300 sec
Automatic learning of multicast router ports is enabled
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Command Mode
User EXEC mode.
User Guidelines
• To see the full Multicast Address Table (including static addresses) use the
show bridge
multicast address-table
Privileged EXEC command.
Example
The following example shows IGMP snooping information on Multicast groups.
Console> show ip igmp snooping groups
Vlan IP Address Querier Ports
---- ------------------ -------- ------------
1 224-239.130|2.2.3 Yes 1/e1, 2/e2
19 224-239.130|2.2.8 Yes 1/e9-e11
IGMP Reporters that are forbidden statically:
---------------------------------------------
Vlan IP Address Ports
---- ------------------ ------------
1 224-239.130|2.2.3 1/e19
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IP Addressing Commands 217
13
IP Addressing Commands
ip address
The ip address Interface Configuration (Ethernet, VLAN, port-channel) mode command sets an IP
address. Use the no form of this command to remove an IP address.
Syntax
ip address
ip-address
{
mask
|
prefix-length
}
no ip address
[
ip-address
]
•
ip-address
— Valid IP address
•
mask
— Valid network mask of the IP address.
•
prefix-length
— Specifies the number of bits that comprise the IP address prefix. The prefix
length must be preceded by a forward slash (/). (Range: 8 - 30)
Default Configuration
No IP address is defined for interfaces.
Command Mode
Interface Configuration (Ethernet, VLAN, port-channel) mode.
User Guidelines
• An IP address cannot be configured for a range of interfaces (range context).
Example
The following example configures VLAN 1 with IP address 131.108.1.27 and subnet mask
255.255.255.0.
Console(config)# interface vlan 1
Console(config-if)# ip address 131.108.1.27 255.255.255.0
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ip address dhcp
The ip address dhcp Interface Configuration (Ethernet, VLAN, port-channel) mode command
acquires an IP address for an Ethernet interface from the Dynamic Host Configuration Protocol
(DHCP) server. Use the no form of this command to deconfigure an acquired IP address.
Syntax
•
ip address dhcp
[
hostname
host-name
]
• no ip address dhcp
•
host-name
— Specifies the name of the host to be placed in the DHCP option 12 field. This
name does not have to be the same as the host name specified in the
hostname
Global
Configuration mode command. (Range: 1-20 characters)
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet, VLAN, port-channel) mode.
User Guidelines
•The
ip address dhcp
command allows any interface to dynamically learn its IP address by using
the DHCP protocol.
• Some DHCP servers require that the DHCPDISCOVER message have a specific host name. The
ip address dhcp
hostname
host-name
command is most typically used when the host name is
provided by the system administrator.
• If the device is configured to obtain its IP address from a DHCP server, it sends a
DHCPDISCOVER message to provide information about itself to the DHCP server on the
network.
•If the
ip address dhcp
command is used with or without the optional keyword, the DHCP option
12 field (host name option) is included in the DISCOVER message. By default, the specified
DHCP host name is the globally configured host name of the device. However, the
ip address
dhcp hostname
host-name
command can be used to place a different host name in the DHCP
option 12 field.
•The
no ip address dhcp
command deconfigures any IP address that was acquired, thus sending a
DHCPRELEASE message.
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Example
The following example acquires an IP address for Ethernet port 1/e16 from DHCP.
ip default-gateway
The ip default-gateway Global Configuration mode command defines a default gateway (router).
Use the no form of this command to return to the default configuration.
Syntax
•
ip default-gateway
ip-address
• no ip default-gateway
•
ip-address
— Valid IP address of the default gateway.
Default Configuration
No default gateway is defined.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example defines default gateway 192.168.1.1.
show ip interface
The show ip interface User EXEC mode command displays the usability status of configured
IP interfaces.
Syntax
•
show ip interface
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
port-channel
number.
]
•
interface-number
— Valid Ethernet port.
•
vlan-id
— Valid VLAN number.
•
port-channel number.
— Valid Port-channel number.
Console(config)# interface ethernet 1/e16
Console(config-if)# ip address dhcp
Console(config)# ip default-gateway 192.168.1.1
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Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example the displays the configured IP interfaces and their types.
arp
The arp Global Configuration mode command adds a permanent entry in the Address Resolution
Protocol (ARP) cache. Use the no form of this command to remove an entry from the ARP cache.
Syntax
•
arp
ip_addr hw_addr
{
ethernet
i
nterface-number
|
vlan
vlan-id
|
port-channel
port-channel
number.
}
•
no arp
ip_addr
{
ethernet
i
nterface-number
|
vlan
vlan-id
|
port-channel
port-channel number.
}
•
ip_addr
— Valid IP address or IP alias to map to the specified MAC address.
•
hw_addr
— Valid MAC address to map to the specified IP address or IP alias.
•
interface-number
— Valid Ethernet port.
•
vlan-id
— Valid VLAN number
.
•
port-channel number
— Valid
Port-channel number.
Console# show ip interface
Gateway IP Address Type Activity status
------------------ ------ ---------------
10.7.1.1 Static Active
IP address Interface Type
------------- --------- -------
10.7.1.192/24 VLAN 1 Static
10.7.2.192/24 VLAN 2 DHCP
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Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• The software uses ARP cache entries to translate 32-bit IP addresses into 48-bit hardware
addresses. Because most hosts support dynamic resolution, static ARP cache entries do not
generally have to be specified.
Example
The following example adds IP address 198.133.219.232 and MAC address 00:00:0c:40:0f:bc to
the ARP table.
arp timeout
The arp timeout Global Configuration mode command configures how long an entry remains in
the ARP cache. Use the no form of this command to return to the default configuration.
Syntax
•
arp timeout
seconds
• no arp timeout
•
seconds
— Time (in seconds) that an entry remains in the ARP cache. (Range: 1 -
40000000)
Default Configuration
The default timeout is 60000 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• It is recommended not to set the timeout value to less than 3600.
Console(config)# arp 198.133.219.232 00:00:0c:40:0f:bc ethernet
1/e6
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Example
The following example configures the ARP timeout to 12000 seconds.
clear arp-cache
The clear arp-cache Privileged EXEC mode command deletes all dynamic entries from the
ARP cache.
Syntax
• clear arp-cache
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example deletes all dynamic entries from the ARP cache.
show arp
The show arp Privileged EXEC mode command displays entries in the ARP table.
Syntax
•
show arp
[
ip-address
ip-address
] [
mac-address
mac-address
] [
ethernet
interface
| port-
channel
port-channel-number
]
•
ip-address
— Displays the ARP entry of a specific IP address.
•
mac-address
— Displays the ARP entry of a specific MAC address.
•
interface
— Displays the ARP entry of a specific Ethernet port interface.
•
port-channel-number
— Displays the ARP entry of a specific Port-channel number
interface.
Console(config)# arp timeout 12000
Console# clear arp-cache
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays entries in the ARP table.
ip domain-lookup
The ip domain-lookup Global Configuration mode command enables the IP Domain Naming
System (DNS)-based host name-to-address translation. Use the no form of this command to disable
DNS-based host name-to-address translation.
Syntax
•
ip domain-lookup
• no ip domain-lookup
Default Configuration
IP Domain Naming System (DNS)-based host name-to-address translation is enabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Console# show arp
ARP timeout: 80000 Seconds
Interface IP address HW address Status
--------- ---------- ----------------- -------
1/e1 10.7.1.102 00:10:B5:04:DB:4B Dynamic
2/e2 10.7.1.135 00:50:22:00:2A:A4 Static
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Examples
The following example enables IP Domain Naming System (DNS)-based host name-to-address
translation.
ip domain-name
The ip domain-name Global Configuration mode command defines a default domain name used
by the software to complete unqualified host names (names without a dotted-decimal domain
name). Use the no form of this command to remove the default domain name.
Syntax
•
ip domain-name
name
• no ip domain-name
•
name —
Specifies the default domain name used to complete unqualified host names. Do not
include the initial period that separates an unqualified name from the domain name. (Range:
1 - 158 characters)
Default Configuration
A default domain name is not defined.
Command Mode
Global Configuration mode.
User Guidelines
• This command enables host name-to-address translation. The preference in name-to-address
resolution is determined by the type of host name-to-address entry. Static entries are read first,
followed by DHCP entries and DNS-protocol entries.
Examples
The following example defines default domain name dell.com.
ip name-server
The ip name-server Global Configuration mode command defines the available name servers. Use
the no form of this command to remove a name server.
Console(config)# ip domain-lookup
Console(config)# ip domain-name dell.com
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Syntax
•
ip name-server
server-address
[
server-address2 … server-address8
]
•
no ip name-server
[
server-address1 … server-address8
]
•
server-address —
Specifies IP addresses of the name server.
Default Configuration
No name server addresses are specified.
Command Mode
Global Configuration mode.
User Guidelines
• The preference of the servers is determined by the order in which they were entered.
• Up to 8 servers can be defined using one command or using multiple commands.
Examples
The following example sets the available name server.
ip host
The ip host Global Configuration mode command defines static host name-to-address mapping in
the host cache. Use the no form of this command to remove the host name-to-address mapping.
Syntax
•
ip host
name address
•
no ip host
name
•
name —
Name of the host (Range: 1 - 158 characters)
•
address —
Associated IP address.
Default Configuration
No host is defined.
Command Mode
Global Configuration mode.
User Guidelines
• Up to 64 host name-to address mapping entries are permitted in the host cache.
Console(config)# ip name-server 176.16.1.18
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Examples
The following example defines a static host name-to-address mapping in the host cache.
clear host
The clear host Privileged EXEC mode command deletes entries from the host name-to-address
cache.
Syntax
•
clear host
{
name
|
*
}
•
name —
Specifies the host entry to be removed. (Range: 1 - 158 characters
)
•
*
— Removes all entries.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example deletes all entries from the host name-to-address cache.
clear host dhcp
The clear host dhcp Privileged EXEC mode command deletes entries from the host name-to-address
mapping received from Dynamic Host Configuration Protocol (DHCP).
Syntax
•
clear host dhcp
{
name
|
*
}
•
name —
Specifies the host entry to be removed. (Range: 1 - 158 characters
)
•
*
— Removes all entries.
Console(config)# ip host accounting.dell.com 176.10.23.1
Console# clear host *
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• This command deletes the host name-to-address mapping temporarily until the next renewal of
the IP address.
Examples
The following example deletes all entries from the host name-to-address mapping.
show hosts
The show hosts Privileged EXEC mode command displays the default domain name; a list of name
server hosts; the static and the cached list of host names and addresses.
Syntax
•
show hosts
[
name
]
•
name —
Specifies the host name. (Range: 1 - 158 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# clear host dhcp *
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Examples
The following example displays host information.
Console# show hosts
Host name: Device
Default domain is gm.com, sales.gm.com, usa.sales.gm.com(DHCP)
Name/address lookup is enabled
Name servers (Preference order): 176.16.1.18 176.16.1.19
Configured host name-to-address mapping:
Host Addresses
---- ---------
accounting.gm.com 176.16.8.8 176.16.8.9 (DHCP)
Cache: TTL(Hours)
Host Total Elapsed Type Addresses
---- ----- ------- ------ ---------
www.stanford.edu 72 3 IP 171.64.14.203
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IPv6 Addressing
ipv6 enable
The ipv6 enable Interface Configuration mode command enables IPv6 processing on an interface. Use the
no form of this command to disable IPv6 processing on an interface.
Syntax
•
ipv6 enable
[
no-autoconfig
]
• no ipv6 enable
–
no-autoconfig
— Enables IPv6 processing on an interface without a stateless address
autoconfiguration procedure.
Default Configuration
IPv6 is disabled. When the interface is enabled unless using the no-autoconfig parameter, stateless address
autoconfiguration procedure is enabled.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode. This command cannot be configured for a
range of interfaces (range context).
User Guidelines
•The
ipv6 enable
command automatically configures an IPv6 link-local unicast address on the interface
while also enabling the interface for IPv6 processing. The
no ipv6
enable command removes the entire
IPv6 interface configuration.
• To enable stateless address autoconfiguration on an enabled IPv6 interface, use the
ipv6 address
autoconfig
command.
Example
The following example enables IPv6 processing onVLAN 1.
ipv6 address autoconfig
The ipv6 address autoconfig Interface Configuration mode command enables automatic configuration of
IPv6 addresses using stateless autoconfiguration on an interface. Addresses are configured depending on the
prefixes received in Router Advertisement messages. , Use the no form of this command to disable address
autoconfiguration on the interface.
Console (config)# interface vlan 1
Console (config-if)# ipv6 enable
14
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Syntax
•
ipv6 address autoconfig
• no ipv6 address autoconfig
Default Configuration
Address autoconfiguration is enabled on the interface, no addresses are assigned by default.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode.
User Guidelines
• When address autoconfig is enabled, router solicitation ND procedure is initiated to discover a router and
assign IP addresses to the interface, based on the advertised on-link prefixes.
• When disabling address autoconfig, automatically generated addresses assigned to the interface are
removed.
• The default state of the address autoconfig is 'enabled'. To enable an IPv6 interface without address
autoconfig, use the
enable ipv6 no-autoconfig
command.
Example
The following example enables automatic configuration of IPv6 addresses using stateless autoconfiguration
on VLAN 1.
ipv6 icmp error-interval
The ipv6 icmp error-interval Global Configuration mode command configures the rate limit interval and
bucket size parameters for IPv6 Internet Control Message Protocol (ICMP) error messages. Use the no form
of this command to return the interval to its default setting.
Syntax
•
ipv6 icmp error-interval
milliseconds
[
bucketsize
]
• no ipv6 icmp error-interval
•
milliseconds
— The time interval between tokens being placed in the bucket, each token represents a
single ICMP error message. (Range: 0 - 2147483647)
•
bucketsize
— The maximum number of tokens stored in the bucket. (Range: 1 - 200)
Default Configuration
The default interval is 100ms and the default bucketsize is 10 tokens.
Console (config)# interface vlan 1
Console (config-if)# ipv6 address autoconfig
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Command Mode
Global Configuration mode.
User Guidelines
• To set the average icmp error rate limit, calculate the interval by the following formula:
Average Packets Per Second = (1/ interval) * bucket size
Example
The following example configures the rate limit interval to 200ms and bucket size to 20 tokens for IPv6
Internet Control Message Protocol (ICMP) error messages.
show ipv6 icmp error-interval
The show ipv6 error-interval command
Privileged EXEC
mode
command displays
the IPv6 ICMP error
interval setting.
Syntax
• show ipv6 icmp error-interval
Default Configuration
This command has no default setting.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example
displays
the IPv6 ICMP error interval setting..
ipv6 address
The ipv6 address Interface Configuration mode command configures an IPv6 address for an interface. use
the no form of this command to remove the address from the interface.
Console (config)# ipv6 icmp error-interval 200 10
Console> show ipv6 icmp error-interval
Rate limit interval: 100 ms
Bucket size: 10 tokens
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Syntax
•
ipv6 address
ipv6-address/prefix-length
[
eui-64
] [
anycast
]
•
no ipv6 address
[
ipv6-address/prefix-length
] [
eui-64
]
•
ipv6-address
— The IPv6 network assigned to the interface. The address is specified in hexadecimal
using 16-bit values between colons.
•
prefix-length
— The length of the IPv6 prefix. A decimal value that indicates how many of the high-
order contiguous bits of the address comprise the prefix (the network portion of the address). A slash
mark must precede the decimal. (Range:
3-128 only 64 when the eui-64 parameter is used)
•
eui-64
— Specifies to build an interface ID in the low order 64 bits of the IPv6 address based on the
interface MAC address.
•
anycast
— Indicates that this address is an anycast address.
Default Configuration
No IP address is defined for the interface.
Command Mode
Interface Configuration (Ethernet, VLAN, Port-channel) mode. Cannot be configured for a range of
interfaces (range context).
User Guidelines
• If the value specified for the
/prefix-length
argument is greater than 64 bits, the prefix bits have precedence
over the interface ID.
• Using the
no ipv6 address
command without arguments removes all manually configured IPv6 addresses
from an interface, including link local manually configured addresses.
Example
The following example configures an IPv6 address FE80::260:3EFF:FE11:6770 for interface g1.
ipv6 address link-local
The ipv6 address link-local Interface Configuration mode command configures an IPv6 link-local address
for an interface. Use the no form of this command to return to the default link local address on the interface.
Syntax
•
ipv6 address
ipv6-address
link-local
• no ipv6 address link-local
Console# Console (config)# interface g1
Console (config-if)# ipv6 address FE80::260:3EFF:FE11:6770
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•
ipv6-address
— The IPv6 network address assigned to the interface. The address is specified in
hexadecimal using 16-bit values between colons.
Default Configuration
IPv6 is enabled on the interface. Link local address of the interface is FE80::EUI64 (interface MAC
address).
Command Mode
Interface configuration (Ethernet, VLAN, Port-channel). Cannot be configured for a range of interfaces
(range context).
User Guidelines
• Using the
no ipv6 link-local address
command removes the manually configured link local IPv6 address
from an interface. Multiple IPv6 addresses can be configured per interface, but only one link-local
address. When the
no ipv6 link-local address
command is used, the interface is reconfigured with the
standard link local address (the same IPv6 link-local address that is set automatically when the
enable
ipv6
command is used). The system automatically generates a link-local address for an interface when
IPv6 processing is enabled on the interface. To manually specify a link-local address to be used by an
interface, use the
ipv6 link-local address
command. The system supports only 64 bits prefix length for
link-local addresses.
Example
The following example assigns FE80::260:3EFF:FE11:6770 as the link-local address.
ipv6 unreachables
The ipv6 unreachables Interface Configuration mode command enables the generation of Internet Control
Message Protocol for IPv6 (ICMPv6) unreachable messages for any packets arriving on a specified
interface. Use the no form of this command to prevent the generation of unreachable messages.
Syntax
• ipv6 unreachables
• no ipv6 unreachables
Default Configuration
ICMP unreachable messages are sent by default.
Console# Console (config)# interface g1
Console (config-if)# ipv6 address FE80::260:3EFF:FE11:6770 link-
local
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Command Mode
Interface configuration mode (Ethernet, VLAN, Port-channel).
User Guidelines
• If a packet addressed to one of the interface's IP address with TCP/UDP port not assigned is received, and
ICMP unreachable messages is enabled, the device sends an ICMP unreachable message. To disable
sending ICMP unreachable messages on the interface, use the
no ipv6 unreachables
command
Example
The following example enables the generation of Internet Control Message Protocol for IPv6 (ICMPv6)
unreachable messages for any packets arriving on interface g1.
ipv6 default-gateway
The ipv6 default-gateway Global Configuration mode command defines an IPv6 default gateway. Use the
no form of this command to remove the default gateway.
Syntax
•
ipv6 default-gateway
ipv6-address
• no ipv6 default-gateway
•
ipv6-address
— IPv6 address of the next hop that can be used to reach that network. When the IPv6
address is a Link Local address (IPv6Z address), the outgoing interface name must be specified. Refer
to the usage guidelines for the interface name syntax.
Default Configuration
No default gateway is defined.
Command Mode
Global Configuration mode.
User Guidelines
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> | 0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
Console# Console (config)# interface g1
Console (config-if)# ipv6 unreachables
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• Configuring a new default GW without deleting the previous configured information overwrites the
previous configuration.
• A configured default GW has a higher precedence over automatically advertised (via router
advertisement message).
• If the egress interface is not specified, the default interface will be selected. Specifying interface
zone=0 is equal to not defining an egress interface.
Example
The following example defines an IPv6 default gateway.
ipv6 mld join-group
The ipv6 mld join-group interface configuration command configures Multicast Listener Discovery (MLD)
reporting for a specified group. To cancel reporting and leave the group, use the no form of this command.
Syntax
•
ipv6 mld join-group
group-address
•
no ipv6 mld join-group
group-address
• group-address — The multicast group IPv6 address.
Default Configuration
This command has no default setting.
Command Mode
Interface configuration (Ethernet, VLAN, Port-channel).
User Guidelines
•The
ipv6 mld join-group
command configures MLD reporting for a specified group. The packets that are
addressed to a specified group address will be passed up to the client process in the device.
Example
The following example configures MLD reporting for specific groups.
ipv6 mld version
The ipv6 mld version interface configuration command changes the Multicast Listener Discovery Protocol
(MLD) version. To change to the default version, use the no form of this command.
Console(config)# ipv6 default-gateway fe80::11
Console(config-if)# ipv6 mld join-group ff02::10
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Syntax
•
ipv6 mld version
{
1
|
2
}
• no ipv6 mld version
– 1 — Specifies MLD version 1.
– 2 — Specifies MLD version 2.
Default Configuration
MLD version 2.
Command Mode
Interface configuration (Ethernet, VLAN, Port-channel).
User Guidelines
• There are no user guidelines for this command.
Example
The following example defines an IPv6 default gateway.
show ipv6 interface
The show ipv6 interface
Privileged EXEC
mode command displays the usability status of interfaces
configured for IPv6.
Syntax
•
show ipv6 interface
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
]
•
ethernet
interface-number
— Ethernet port number
•
vlan
vlan-id
— VLAN number
•
port-channel
number
— Port channel number
Default Configuration
Displays all IPv6 interfaces.
Command Mode
Privileged EXEC mode.
User Guidelines
• To display IPv6 neighbor discovery cache information, use the
show ipv6 neighbors
command in the
privileged EXEC mode.
Console(config-if)# ipv6 mld version 1
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Examples
The following examples displays the usability status of interfaces configured for IPv6.
Console# show ipv6 interface
Interface IP addresses Type
---------- ----------------- -----
1/e1 7001::5668/64 [ANY] manual
1/e2 6001::1234/64 manual
1/e3 fe80::22/64 manual
1/e4 ff02::1 linklayer
1/e5 ff02::78 manual
1/e6 ff02::1:ff00:22 manual
1/e7 ff02::1:ff00:1234 manual
1/e8 ff02::1:ff00:5668 manual
VLAN 1 2002:1:1:1:200:b0ff:fe00:: other
VLAN 1 3001::1/64 manual
VLAN 1 4004::55/64 [ANY] manual
VLAN 1 fe80::200:b0ff:fe00:0 linklayer
VLAN 1 ff02::1 linklayer
VLAN 1 ff02::77 manual
VLAN 1 ff02::1:ff00:0 manual
VLAN 1 ff02::1:ff00:1 manual
VLAN 1 ff02::1:ff00:55 manual
Default Gateway IP
address
Type Interface State
------------------- ------- -------- -------
fe80::77 Static VLAN 1 unreachable
fe80::200:cff:fe4a:dfa8 Dynamic VLAN 1 stale
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show IPv6 route
The show ipv6 route
Privileged EXEC
mode command displays the current state of the IPv6 routing table.
Syntax
•
show ipv6 route
Console# show ipv6 interface vlan 15
IPv6 is disabled
Console# show ipv6 interface vlan 1
Number of ND DAD attempts: 1
MTU size: 1500
Stateless Address Autoconfiguration state: enabled
ICMP unreachable message state: enabled
MLD version: 2
IP addresses Type DAD State
---------------- ------ ---------
2002:1:1:1:200:b0ff:fe00
::
other Active
3001::1/64 manual Active
4004::55/64 [ANY] manual Active
fe80::200:b0ff:fe00:0 linklayer Active
ff02::1 linklayer Active
ff02::77 manual ------
ff02::1:ff00:0 manual ------
ff02::1:ff00:1 manual ------
ff02::1:ff00:55 manual ------
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Default Configuration
This command has no default setting.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays the current state of the IPv6 routing table.
ipv6 nd dad attempts
The ipv6 nd dad attempts Interface Configuration mode command configures the number of consecutive
neighbor solicitation messages that are sent on an interface while duplicate address detection is performed
on the unicast IPv6 addresses of the interface. Use the no form of this command to return the number of
messages to the default value.
Syntax
•
ipv6 nd dad attempts
attempts-number
•
no ipv6 nd dad attempts
Console> show ipv6 route
Codes: L - Local, S - Static, I - ICMP, ND - Router Advertisment
The number in the brackets is the metric.
S ::/0 via fe80::77 [0] VLAN 1 Lifetime Infinite
ND ::/0 via fe80::200:cff:fe4a:dfa8 [0] VLAN 1 Lifetime 1784 sec
L 2001::/64 is directly connected, g2 Lifetime Infinite
L 2002:1:1:1::/64 is directly connected, VLAN 1 Lifetime 2147467
sec
L 3001::/64 is directly connected, VLAN 1 Lifetime Infinite
L 4004::/64 is directly connected, VLAN 1 Lifetime Infinite
L 6001::/64 is directly connected, g2 Lifetime Infinite
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•
attempts-number
— The number of neighbor solicitation messages. Configuring a value of 0 disables
duplicate address detection processing on the specified interface; a value of 1 configures a single
transmission without follow-up transmissions. (Range: 0 - 600)
Default Configuration
Duplicate address detection on unicast IPv6 addresses with the sending of one (1) neighbor solicitation
message is enabled.
Command Mode
Interface configuration (Ethernet, VLAN, Port-channel). Cannot be configured for a range of interfaces
(range context).
User Guidelines
• Duplicate address detection verifies the uniqueness of new unicast IPv6 addresses before the addresses are
assigned to interfaces (the new addresses remain in a tentative state while duplicate address detection is
performed). Duplicate address detection uses neighbor solicitation messages to verify the uniqueness of
unicast IPv6 addresses.
• An interface returning to administratively “up” restarts duplicate address detection for all of the unicast
IPv6 addresses on the interface. While duplicate address detection is performed on the link-local address
of an interface, the state for the other IPv6 addresses is still set to TENTATIVE. When duplicate address
detection is completed on the link-local address, duplicate address detection is performed on the
remaining IPv6 addresses.
• When duplicate address detection identifies a duplicate address, the state of the address is set to
DUPLICATE and the address is not used. If the duplicate address is the link-local address of the interface,
the processing of IPv6 packets is disabled on the interface and an error message is displayed.
• All configuration commands associated with the duplicate address remain as configured while the state of
the address is set to DUPLICATE.
• If the link-local address for an interface changes, duplicate address detection is performed on the new link-
local address and all of the other IPv6 address associated with the interface are regenerated (duplicate
address detection is performed only on the new link-local address).
• Until DAD process is completed, an IPv6 address is in tentative state and can not be used for data transfer.
It is recommended to limit the configured value.
Example
The following example configures the number of consecutive neighbor solicitation messages that are sent on
an interface while duplicate address detection is performed on the unicast IPv6 addresses of the interface to
10.
Console# Console (config)# interface g1
Console (config-if)# ipv6 nd dad attempts 10
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ipv6 host
The ipv6 host Global Configuration mode command defines a static host name-to-address mapping in the
host name cache. Use the no form of this command to remove the host name-to-address mapping.
Syntax
•
ipv6 host
name ipv6-address1
[
ipv6-address2
...
ipv6-address4
]
•no
ipv6 host name
•
name
— Name of the host. (Range: 1 - 158 characters)
•
ipv6-address1
— Associated IPv6 address. The address is specified in hexadecimal using 16-bit
values between colons. When the IPv6 address is a Link Local address (IPv6Z address), the outgoing
interface name must be specified. Refer to the usage guidelines for the interface name syntax.
•
ipv6-address2-4
(optional) — Addition IPv6 addresses that may be associated with the host’s name
Default Configuration
No host is defined.
Command Mode
Global Configuration mode.
User Guidelines
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> | 0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
Example
The following example defines a static host name-to-address mapping in the host name cache.
ipv6 neighbor
The ipv6 neighbor Global Configuration mode command configures a static entry in the IPv6 neighbor
discovery cache. Use the no form of this command to remove a static IPv6 entry from the IPv6 neighbor
discovery cache.
Syntax
•
ipv6 neighbor
ipv6_addr hw_addr
{
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
}
Console (config)# ipv6 host ABC fe80::11 fe80::22
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•
no ipv6 neighbor
ipv6_addr
{
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
}
–
ipv6_addr
— IPv6 address to map to the specified MAC address.
–
hw_addr
— MAC address to map to the specified IPv6 address.
–
ethernet
interface-number
— Valid port number.
–
vlan
vlan-id
— VLAN number.
–
port-channel
number
— Port channel number.
Default Configuration
This command has no default setting.
Command Mode
Global Configuration mode.
User Guidelines
•The
ipv6 neighbor
command is similar to the
arp
(global) command.
• If an entry for the specified IPv6 address already exists in the neighbor discovery cache, learned through
the IPv6 neighbor discovery process, the entry is automatically converted to a static entry.
•Use the
show ipv6 neighbors
command to view static entries in the IPv6 neighbor discovery cache.
Example
The following example configures a static entry in the IPv6 neighbor discovery cache.
ipv6 set mtu
The ipv6 mtu
Privileged EXEC
mode command sets the Maximum Transmission Unit (MTU) size of IPv6
packets sent on an interface. Use the default parameter to restore the default MTU size.
Syntax
•
ipv6 set mtu
{
ethernet
interface
|
vlan
vlan-id
|
port-channel
port-channel-number
} {
bytes
|
default
}
•
ethernet
interface
— Valid interface number.
•
vlan
vlan-id
— VLAN number.
•
port-channel
port-channel-number
— Valid Port Channel index.
•
bytes
— MTU in bytes with a minimum is 1280 bytes.
•
default
— Sets the default MTU size to 1500 bytes.
Console (config)# ipv6 neighbor ff02::78 00:02:85:0E:1C:00
ethernet 1/e16 vlan 1 port-channel 1
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Default Configuration
1500 bytes.
Command Mode
Privileged EXEC mode.
User Guidelines
This command is intended for debugging and testing purposes and should be used only by technical
support personnel.
Example
The following example sets the Maximum Transmission Unit (MTU) size of IPv6 packets sent on an
interface to 1700.
show ipv6 neighbors
The show ipv6 neighbors Privileged EXEC mode command displays IPv6 neighbor discovery cache
information.
Syntax
•
show ipv6 neighbors
{
static
|
dynamic
}[
ipv6-address
ipv6-address
] [
mac-address
mac-address
]
•
static
— Display static neighbor discovery cash entries.
•
dynamic
— Display dynamic neighbor discovery cash entries.
•
ipv6-address
— Display the neighbor discovery cache information entry of a specific IPv6 address.
•
mac-address
— Display the neighbor discovery cache information entry of a specific MAC address.
Command Mode
Privileged EXEC mode.
User Guidelines
• The associated interface of a MAC address can be aged out from the FDB table, so the Interface field can
be empty.
• When an ARP entry is associated with an IP interface that is defined on a port or port-channel, the VLAN
field is empty.
• The possible neighbor cash states are:
INCMP
(Incomplete) — Address resolution is being performed on the entry. Specifically, a Neighbor
Solicitation has been sent to the solicited-node multicast address of the target, but the corresponding
Neighbor Advertisement has not yet been received.
Console> ipv6 set mtu ethernet 1/e16 1700
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REACH
(Reachable) — Positive confirmation was received within the last ReachableTime milliseconds
that the forward path to the neighbor was functioning properly. While REACHABLE, no special action
takes place as packets are sent.
STALE
— More than ReachableTime milliseconds have elapsed since the last positive confirmation was
received that the forward path was functioning properly. While stale, no action takes place until a packet is
sent.
DELAY
— More than ReachableTime milliseconds have elapsed since the last positive confirmation was
received that the forward path was functioning properly, and a packet was sent within the last
DELAY_FIRST_PROBE_TIME seconds. If no reachability confirmation is received within
DELAY_FIRST_PROBE_TIME seconds of entering the DELAY state, a Neighbor Solicitation is sent and
the state is changed to PROBE.
PROBE
— A reachability confirmation is actively sought by retransmitting Neighbor Solicitations every
RetransTimer milliseconds until a reachability confirmation is received.
Example
The following example displays IPv6 neighbor discovery cache information.
clear ipv6 neighbors
The clear ipv6 neighbors
Privileged EXEC
mode command deletes all entries in the IPv6 neighbor
discovery cache, except static entries.
Syntax
• clear ipv6 neighbors
Default Configuration
This command has no default setting.
Command Mode
Privileged EXEC mode.
Console# show ipv6 neighbors dynamic
Interface IPv6 address HW address State
------- ---------- --------- -------
VLAN 1 2031:0:130F::010:B504:DBB4 00:10:B5:04:DB:4B REACH
VLAN 1 2031:0:130F::050:2200:2AA4 00:50:22:00:2A:A4 REACH
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User Guidelines
• There are no user guidelines for this command.
Example
The following example deletes all entries in the IPv6 neighbor discovery cache, except static entries.
Console> clear ipv6 neighbors
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LACP Commands 247
15
LACP Commands
lacp system-priority
The lacp system-priority Global Configuration mode command configures the system priority.
Use the no form of this command to return to the default configuration.
Syntax
•
lacp system-priority
value
•
no lacp system-priority
•
value
— Specifies system priority value. (Range: 1 - 65535)
Default Configuration
The default system priority is 1.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the system priority to 120.
lacp port-priority
The lacp port-priority Interface Configuration (Ethernet) mode command configures physical
port priority. Use the no form of this command to return to the default configuration.
Syntax
•
lacp port-priority
value
•
no lacp port-priority
•
value
— Specifies port priority. (Range: 1 - 65535)
Console(config)# lacp system-priority 120
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Default Configuration
The default port priority is 1.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example defines the priority of Ethernet port 1/e6 as 247.
lacp timeout
The lacp timeout Interface Configuration (Ethernet) mode command assigns an administrative
LACP timeout. Use the no form of this command to return to the default configuration.
Syntax
•
lacp timeout
{
long | short
}
•
no lacp timeout
•
long
— Specifies the long timeout value.
•
short
— Specifies the short timeout value.
Default Configuration
The default port timeout value is
long
.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example assigns a long administrative LACP timeout to Ethernet port 1/e6 .
Console(config)# interface ethernet 1/e6
Console(config-if)# lacp port-priority 247
Console(config)# interface ethernet 1/e6
Console(config-if)# lacp timeout long
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show lacp ethernet
The show lacp ethernet Privileged EXEC mode command displays LACP information for
Ethernet ports.
Syntax
•
show lacp ethernet
interface
[
parameters
|
statistics
|
protocol-state
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
•
parameters
— Link aggregation parameter information.
•
statistics
— Link aggregation statistics information.
•
protocol-state
— Link aggregation protocol-state information.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example display LACP information for Ethernet port 1/e1.
Console# show lacp ethernet 1/e1
Port 1/e1 LACP parameters:
Actor
system priority: 1
system mac addr: 00:00:12:34:56:78
port Admin key: 30
port Oper key: 30
port Oper number: 21
port Admin priority: 1
port Oper priority: 1
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port Admin timeout: LONG
port Oper timeout: LONG
LACP Activity: ACTIVE
Aggregation: AGGREGATABLE
synchronization: FALSE
collecting: FALSE
distributing: FALSE
expired: FALSE
Partner
system priority: 0
system mac addr: 00:00:00:00:00:00
port Admin key: 0
port Oper key: 0
port Oper number: 0
port Admin priority: 0
port Oper priority: 0
port Oper timeout: LONG
LACP Activity: PASSIVE
Aggregation: AGGREGATABLE
synchronization: FALSE
collecting: FALSE
distributing: FALSE
expired: FALSE
Port 1/e1 LACP Statistics:
LACP PDUs sent: 2
LACP PDUs received: 2
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show lacp port-channel
The show lacp port-channel Privileged EXEC mode command displays LACP information for a
port-channel.
Syntax
•
show lacp port-channel
[
port_channel_number
]
•
port_channel_number
— Valid
port-channel number.
Default Configuration
This command has no default configuration.
Port 1/e1 LACP Protocol State:
LACP State Machines:
Receive FSM: Port Disabled State
Mux FSM: Detached State
Periodic Tx FSM: No Periodic State
Control Variables:
BEGIN: FALSE
LACP_Enabled: TRUE
Ready_N: FALSE
Selected: UNSELECTED
Port_moved: FALSE
NNT: FALSE
Port_enabled: FALSE
Timer counters:
periodic tx timer: 0
current while timer: 0
wait while timer: 0
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Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays LACP information about port-channel 1.
Console# show lacp port-channel 1
Port-Channel 1: Port Type 1000 Ethernet
Actor
System Priority: 1
MAC Address: 00:02:85:0E:1C:00
Admin Key: 29
Oper Key: 29
Partner
System Priority: 0
MAC Address: 00:00:00:00:00:00
Oper Key: 14
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Line Commands 253
16
Line Commands
line
The line Global Configuration mode command identifies a specific line for configuration and
enters the Line Configuration command mode.
Syntax
•
line
{
console
|
telnet
|
ssh
}
•
console
— Console terminal line.
•
telnet
— Virtual terminal for remote console access (Telnet).
•
ssh
— Virtual terminal for secured remote console access (SSH).
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example configures the device as a virtual terminal for remote console access.
speed
The speed Line Configuration mode command sets the line baud rate.
Console(config)# line telnet
Console(config-line)#
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Syntax
•
speed
bps
•
bps
— Baud rate in bits per second (bps). Possible values are 2400, 4800, 9600, 19200,
38400, 57600 and 115200.
Default Configuration
The default speed is 9600 bps.
Command Mode
Line Configuration (console) mode.
User Guidelines
• This command is available only on the line console.
• The configured speed is applied when Autobaud is disabled. This configuration applies only to
the current session.
Examples
The following example configures the line baud rate to 115200.
autobaud
The autobaud Line Configuration mode command sets the line for automatic baud rate detection
(autobaud). To disable automatic baud rate detection, use the no form of the command.
Syntax
•
autobaud
•
no autobaud
Default Configuration
Autobaud is disabled.
Command Mode
Line Configuration (console) mode.
Console(config)# line console
Console(config-line)# speed 115200
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User Guidelines
• This command is available only on the line console.
• To start communication using Autobaud, press
<Enter>
twice. This configuration applies only
to the current session.
Examples
The following example enables autobaud.
exec-timeout
The exec-timeout Line Configuration mode command sets the interval that the system waits until
user input is detected. Use the no form of this command to return to the default configuration.
Syntax
•
exec-timeout
minutes
[
seconds
]
•
no exec-timeout
•
minutes
— Specifies the number of minutes. (Range: 0 - 65535)
•
seconds
— Specifies additional time intervals in seconds. (Range: 0 - 59)
Default Configuration
The default configuration is 10 minutes.
Command Mode
Line Configuration mode.
User Guidelines
• To specify no timeout, enter the
exec-timeout
0 command.
Examples
The following example configures the interval that the system waits until user input is detected to
20 minutes.
Console(config)# line console
Console(config-line)# autobaud
Console(config)# line console
Console(config-line)# exec-timeout 20
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history
The history Line Configuration mode command enables the command history function. Use the no
form of this command to disable the command history function.
Syntax
•
history
•
no history
Default Configuration
The command history function is enabled.
Command Mode
Line Configuration mode.
User Guidelines
• This command enables the command history function for a specified line. To enable or disable
the command history function for the current terminal session, use the
terminal history
user
EXEC mode command.
Example
The following example enables the command history function for telnet.
history size
The history size Line Configuration mode command configures the command history buffer size
for a particular line. Use the no form of this command to reset the command history buffer size to
the default configuration.
Syntax
•
history size
number-of-commands
•
no history size
•
number-of-commands —
Number of commands that the system records in its history buffer.
(Range: 10 - 256)
Default Configuration
The default history buffer size is 10.
Console(config)# line telnet
Console(config-line)# history
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Command Mode
Line Configuration mode.
User Guidelines
This command configures the command history buffer size for a particular line. To configure the
command history buffer size for the current terminal session, use the
terminal history size
User
EXEC mode command.
Example
The following example changes the command history buffer size to 100 entries for a particular line.
terminal history
The terminal history User EXEC command enables the command history function for the current
terminal session. Use the no form of this command to disable the command history function.
Syntax
•
terminal history
•
no terminal history
Default Configuration
The default configuration for all terminal sessions is defined by the
history
line configuration
command.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example disables the command history function for the current terminal session.
terminal history size
The terminal history size User EXEC command configures the command history buffer size for
the current terminal session. Use the no form of this command to reset the command history buffer
size to the default setting.
Console(config-line)# history size 100
Console# no terminal history
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Syntax
•
terminal history size
number-of-commands
•
no
terminal history size
•
number-of-commands
— Specifies the number of commands the system may record in its
command history buffer. (Range: 10 - 256)
Default Configuration
The default command history buffer size is 10.
Command Mode
User EXEC mode.
User Guidelines
•The
terminal history size
User EXEC command configures the size of the command history
buffer for the current terminal session. To change the default size of the command history buffer,
use the
history
line configuration command.
• The maximum number of commands in all buffers is 256.
Examples
The following example configures the command history buffer size to 20 commands for the current
terminal session.
show line
The show line User EXEC mode command displays line parameters.
Syntax
•
show line
[console
|
telnet
|
ssh
]
•
console
— Console terminal line.
•
telnet
— Virtual terminal for remote console access (Telnet).
•
ssh
— Virtual terminal for secured remote console access (SSH).
Default Configuration
If the line is not specified, the default value is console.
Command Mode
User EXEC mode.
Console> terminal history size 20
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User Guidelines
There are no user guidelines for this command.
Examples
The following example displays the line configuration.
Console> show line
Console configuration:
Interactive timeout: Disabled
History: 10
Baudrate: 9600
Databits: 8
Parity: none
Stopbits: 1
Telnet configuration:
Interactive timeout: 10 minutes 10 seconds
History: 10
SSH configuration:
Interactive timeout: 10 minutes 10 seconds
History: 10
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Management ACL 261
17
Management ACL
management access-list
The management access-list Global Configuration mode command configures a management
access list and enters the Management Access-list Configuration command mode. Use the no form
of this command to delete an access list.
Syntax
•
management access-list
name
•
no management access-list
name
•
name
— Access list name. (Range: 1-32 characters)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Use this command to configure a management access list. The command enters the Access-list
Configuration mode, where permit and deny access rules are defined using the
permit
(Management)
and
deny (Management)
commands.
• If no match criteria are defined, the default is deny.
• If you re-enter an access list context, the new rules are entered at the end of the access list.
•Use the
management access-class
command to select the active access list.
• The active management list cannot be updated or removed.
• Management ACL requires a valid management interface, which is a port, VLAN, or port
channel with an IP address or console interface. Management ACL only restricts access to the
device for management configuration or viewing.
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Examples
The following example creates a management access list called mlist, configures management
Ethernet interfaces 1/e1 and 2/e9 and makes the new access list the active list.
The following example creates a management access list called mlist, configures all interfaces to be
management interfaces except Ethernet interfaces 1/e1 and 2/e9 and makes the new access list the
active list.
permit (Management)
The permit Management Access-List Configuration mode command defines a permit rule.
Syntax
•
permit
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
port-channel-number
] [
service
service
]
•
permit ip-source
{
ipv4-address | ipv6-address/prefix-length
}
[
mask
mask
|
prefix-length
]
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
] [
service
service
]
•
ethernet
interface-number
— A valid Ethernet port number.
•
vlan
vlan-id
— A valid VLAN number.
•
port-channel
port-channel-number
— A valid port channel index.
•
ipv4-address
— Source IPv4 address.
•
ipv6-address/prefix-length
— Source IPv6 address and prefix length. The prefix length is
optional.
Console(config)# management access-list mlist
Console(config-macl)# permit ethernet 1/e1
Console(config-macl)# permit ethernet 2/e9
Console(config-macl)# exit
Console(config)# management access-class mlist
Console(config)# management access-list mlist
Console(config-macl)# deny ethernet 1/e1
Console(config-macl)# deny ethernet 2/e9
Console(config-macl)# permit
Console(config-macl)# exit
Console(config)# management access-class mlist
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•
mask
mask
— A valid network mask of the source IP address.
•
mask
prefix-length
— Number of bits that comprise the source IP address prefix. The prefix
length must be preceded by a forward slash (/). (Range: 0 - 32)
•
service
service
— Service type. Possible values:
telnet
,
ssh
,
http,
https
and
snmp
.
Default Configuration
If no permit rule is defined, the default is set to deny
.
Command Mode
Management Access-list Configuration mode.
User Guidelines
• Rules with Ethernet, VLAN and port-channel parameters are valid only if an IP address is
defined on the appropriate interface.
• The system supports up to 128 management access rules.
Example
The following example permits all ports in the mlist access list.
deny (Management)
The deny Management Access-List Configuration mode command defines a deny rule.
Syntax
•
deny
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
port-channel-number
] [
service
service
]
•
deny ip-source
{
ipv4-address | ipv6-address/prefix-length
}[
mask
mask
|
prefix-length
]
[
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number
] [
service
service
]
•
ethernet
interface-number
— A valid Ethernet port number.
•
vlan
vlan-id
— A valid VLAN number.
•
port-channel
number
— A valid port-channel number.
•
ipv4-address
— Source IPv4 address.
•
ipv6-address/prefix-length
— Source IPv6 address and prefix length. The prefix length is
optional.
•
mask
mask
— A valid network mask of the source IP address.
Console(config)# management access-list mlist
Console(config-macl)# permit
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•
mask
prefix-length
— Specifies the number of bits that comprise the source IP address
prefix. The prefix length must be preceded by a forward slash (/). (Range: 0-32)
•
service
service
— Service type. Possible values:
telnet
,
ssh
,
http,
https
and
snmp
.
Default Configuration
This command has no default configuration.
Command Mode
Management Access-list Configuration mode.
User Guidelines
• Rules with Ethernet, VLAN and port-channel parameters are valid only if an IP address is
defined on the appropriate interface.
• The system supports up to 128 management access rules.
Example
The following example denies all ports in the access list called mlist.
management access-class
The management access-class Global Configuration mode command restricts management
connections by defining the active management access list. Use the no form of this command to
disable this restriction.
Syntax
•
management access-class
{
console-only
|
name
}
•
no management access-class
•
name
— Specifies the name of the access list to be used. (Range: 1-32 characters)
•
console-only
— Indicates that the device can be managed only from the console.
Default Configuration
If no access list is specified, an empty access list is used.
Command Mode
Global Configuration mode.
Console(config)# management access-list mlist
Console(config-macl)# deny
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User Guidelines
There are no user guidelines for this command.
Example
The following example configures an access list called mlist as the management access list.
show management access-list
The show management access-list Privileged EXEC mode command displays management
access-lists.
Syntax
•
show management access-list
[
name
]
•
name
— Specifies the name of a management access list. (Range: 1 - 32 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the mlist management access list.
Console(config)# management access-class mlist
Console# show management access-list mlist
mlist
-----
permit ethernet 1/e1
permit ethernet 2/e2
! (Note: all other access implicitly denied)
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show management access-class
The show management access-class Privileged EXEC mode command displays the active
management access list.
Syntax
•
show management access-class
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays information about the active management access list.
Console# show management access-class
Management access-class is enabled, using access list mlist
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LLDP Commands 267
18
LLDP Commands
lldp enable (global)
The lldp enable Global Configuration mode command in enables Link Layer Discovery Protocol
(LLDP). Use the no form of this command to disable LLDP.
Syntax
• lldp enable
• no lldp enable
Default Configuration
The command is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• There are no guidelines for this command.
Example
The following example enables Link Layer Discovery Protocol (LLDP) .
lldp enable (interface)
The lldp enable Interface Configuration mode command enables Link Layer Discovery Protocol
(LLDP) on an interface. Use the no form of this command to disable LLDP on an interface.
Syntax
•
lldp enable
[rx | tx | both]
•
no
lldp enable
•
rx
— Receive only LLDP packets.
•
tx
— Transmit only LLDP packets.
•
both
—
Receive and transmit LLDP packets (default)
console (config)# lldp enable
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Default Configuration
Enabled in both modes.
Command Modes
Interface Configuration (Ethernet)mode.
User Guidelines
• LLDP manages LAG ports individually. LLDP sends separate advertisements on each port in a
LAG. LLDP data received through LAG ports is stored individually per port.
• LLDP operation on a port is not dependent on STP state of a port. I.e. LLDP frames are sent and
received on blocked ports. If a port is controlled by 802.1X, LLDP operates only if the port is
authorized.
Examples
The following example enables Link Layer Discovery Protocol (LLDP) on an interface.
ll
dp timer
The lldp timer command Global Configuration mode command specifies how often the software
sends Link Layer Discovery Protocol (LLDP) updates. Use the no form of this command to revert
to the default setting.
Syntax
•
lldp timer
seconds
•
no
lldp timer
•
seconds
—
Specifies in seconds how often the software sends LLDP update.
(Range: 5 - 32768 seconds) .
Default Configuration
Default — 30 seconds.
Command Modes
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Console(config)# interface ethernet 1/e5
Console(config-if)# lldp enable
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Examples
The following example specifies how often the software sends Link Layer Discovery Protocol (LLDP)
updates.
lldp hold-multiplier
The lldp hold-multiplier Global Configuration mode command specifies the amount of time the
receiving device holds a Link Layer Discovery Protocol (LLDP) packet before discarding it. Use
the no form of this command to revert to the default setting.
Syntax
•
lldp hold-multiplier
number
•
no
lldp hold-multiplier
•
number
—
Specifies the hold time to be sent in the LLDP update packets as a multiple of the
timer value. (Range: 2-10)
Default Configuration
The default configuration is 4.
Command Modes
Global Configuration mode.
User Guidelines
• The actual time-to-live value used in LLDP frames can be expressed by the following formula:
TTL = min(65535, LLDP-Timer * LLDP-HoldMultiplier). For example, if the value of LLDP
timer is '30', and the value of the LLDP hold multiplier is '4', then the value '120' is encoded in
the TTL field in the LLDP header.
Examples
The following example specifies how often the software sends Link Layer Discovery Protocol (LLDP)
updates.
lldp reinit-delay
The lldp reinit-delay Global Configuration mode command specifies the minimum time an LLDP
port waits before reinitializing LLDP transmission. Use the no form of this command to revert to
the default setting.
Console (config) # lldp timer
Console (config) # lldp hold-multiplier 6
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Syntax
•
lldp reinit-delay
seconds
• no lldp reinit-delay
• seconds —
Specifies the minimum time in seconds an LLDP port waits before reinitializing
LLDP transmission. (Range 1-10 seconds)
Default Configuration
2 seconds
Command Modes
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Examples
The following example specifies the minimum time an LLDP port will wait before reinitializing LLDP
transmission.
lldp tx-delay
The lldp tx-delay Global Configuration mode command specifies the delay between successive
LLDP frame transmissions initiated by value/status changes in the LLDP local systems MIB. Use
the no form of this command to revert to the default setting.
Syntax
•
lldp tx-delay
seconds
•
no
lldp tx-delay
Parameters
•
seconds
—
Specifies the delay in seconds between successive LLDP frame transmissions
initiated by value/status changes in the LLDP local systems MIB. Range 1-8192 second.
Default Configuration
The default value is 2 seconds
Command Modes
Global Configuration mode.
Console (config) # lldp reinit-delay 6
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Usage Guidelines
• It is recommended that the TxDelay be less than 0.25 of the LLDP timer interval.
Examples
The following example specifies the delay between successive LLDP frame transmissions initiated by
value/status changes in the LLDP local systems MIB.
lldp optional-tlv
To specify which optional TLVs from the basic set should be transmitted, use the
lldp optional-tlv
command in interface configuration mode. Use the
no
form of this command to revert to the default
setting.
Syntax
lldp optional-tlv tlv1 [tlv2 … tlv5]
no lldp optional-tlv
•
tlv
—
Specifies TLV that should be included. Available optional TLVs are: port-desc, sys-
name, sys-desc, sys-cap, 802.3-mac-phy.
Default Configuration
No optional TLV is transmitted.
Command Modes
Interface configuration (Ethernet)
User Guidelines
• There are no user guidelines for this command.
Example
The following example specifies which optional TLV (2)s from the basic set should be transmitted.
lldp management-address
The lldp management-address Interface Configuration mode command specifies the management
address advertised from an interface. Use the no form of this command to cease advertising
management address information.
Console (config) # lldp tx-delay 7
Console(config)# interface ethernet g1
Console(config-if)# lldp optional-tlv sys-name
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Syntax
•
lldp management-address ip
ip-address
•
no management-address ip
•
ip-address
—
Specifies the management address to advertise.
Default Configuration
No IP address is advertised.
Command Modes
Interface configuration (Ethernet) mode.
User Guidelines
• Each port can advertise one IP address.
• Only static IP addresses can be advertised.
Example
The following example specifies management address that would be advertised from an interface.
lldp med enable
The
lldp med enable
Interface Configuration mode command enables Link Layer Discovery Protocol
(LLDP) Media Endpoint Discovery (MED) on an interface. Use the
no
form of this command to
disable LLDP MED on an interface.
Syntax
•
lldp med enable
[
tlv1
…
tlv3
]
•
no lldp med enable
•
tlv
— Specifies TLV that should be included. Available TLVs are: network-policy, location,
poe-pse. The capabilities TLV is always included if LLDP–MED is enabled.
Default Configuration
LLDP is disabled.
Command Modes
Interface Configuration (Ethernet) mode.
Console(config)# interface ethernet g1
Console(config-if)# lldp management-address 192.168.0.1
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User Guidelines
There are no user guidelines for this command.
Example
The following example enables Link Layer Discovery Protocol (LLDP) Media Endpoint Discovery
(MED) on an interface as network-policy.
lldp med network-policy (global)
The
lldp med network-policy
Global Configuration mode command defines LLDP MED network
policy. Use the
no
form of this command to remove LLDP MED network policy.
Syntax
•
lldp med network-policy
number application
[
vlan
id
] [
vlan-type
{
tagged
|
untagged
}] [
up
priority
] [
dscp
value
]
•
no lldp med network-policy
number
•
number
— Network policy sequential number.
•
application
— The name or the number of the primary function of the application defined
for this network policy. Available application names are: voice, voice-signaling, guest-voice,
guest-voice-signaling, softphone-voice, video-conferencing, streaming-video, video-
signaling.
•
vlan
id
— VLAN identifier for the application.
•
vlan-type
— Specifies if the application is using a ‘tagged’ or an ‘untagged’ VLAN.
•
up
priority
— User Priority (Layer 2 priority) to be used for the specified application.
•
dscp
value
— DSCP value to be used for the specified application.
Default Configuration
No Network policy is defined.
Command Modes
Global configuration mode.
User Guidelines
•Use the
lldp med network-policy
interface configuration command to attach a network policy
to a port.
• Up to 32 network policies can be defined.
Console(config)# interface ethernet g1
Console(config-if)# lldp med enable network-policy
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Example
The following example defines the LLDP MED network policy. To remove LLDP MED network
policy.
lldp med network-policy (interface)
The
lldp med network-policy
Interface Configuration (Ethernet) mode command attaches a LLDP
MED network policy to a port. Use the
no
form of this command to remove an LLDP MED network
policy from a port.
Syntax
•
lldp med network-policy
{
add / remove
}
number
•
no
lldp med network-policy
number
•
number
— Network policy sequential number.
•add
— Specifies
attach
to a port.
•
remove
— Specifies
remove
from a porty.
Default Configuration
No network policy is attached.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no guidelines for this command.
Example
The following example attaches a LLDP MED network policy to a port.
lldp med location
The lldp med location Interface Configuration mode command configures location information for
the Link Layer Discovery Protocol (LLDP) Media Endpoint Discovery (MED) for an interface.
Use the no form of this command to delete location information for an interface.
Console(config)# lldp tx-delay
Console(config)# interface ethernet 1/e1
Console(config-if)# lldp med enable
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Syntax
• lldp med location coordinate
data
• no lldp med location coordinate
• lldp med location civic-address
data
• no lldp med location civic-address
• lldp med location ecs-elin
data
• no lldp med location ecs-elin
•
coordinate
— The location is specified as coordinates
•
civic-address
— The location is specified as civic address
•
ecs-elin
— The location is specified as ECS ELIN
•
data
— The data format is as defined in ANSI/TIA 1057. Specifies the location as dotted
hexadecimal data: Each byte in hexadecimal character strings is two hexadecimal digits.
Each byte can be separated by a period or colon.
Default Configuration
The location is not configured.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no guidelines for this command.
Example
The following example configures location information for the LLDP MED for an interface.
clear lldp rx
The
clear lldp rx
Privileged EXEC mode command restarts the LLDP RX state machine and clears
the neighbors table.
console# config
console(config)# interface ethernet e6
console(config-if)# lldp med location civic-address
01:01:01:01:02:03
console(config-if)#
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Syntax
•
clear lldp rx
[ethernet interface]
•
Interface
— Ethernet port
Command Modes
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example restarts the LLDP RX state machine and clearing the neighbors table.
show lldp configuration
To display the Link Layer Discovery Protocol (LLDP) configuration, use the
show lldp configuration
command in privileged EXEC mode.
Syntax
•
show lldp configuration
[ethernet interface]
•
Interface
— Ethernet port
Command Modes
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
console(config)# exit
console# clear lldp rx
console#
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Example
The following example displays the Link Layer Discovery Protocol (LLDP) configuration.
show lldp med configuration
The
show lldp med configuration
Privileged EXEC mode command displays the Link Layer
Discovery Protocol (LLDP) Media Endpoint Discovery (MED) configuration.
Syntax
•
show lldp med configuration
[
ethernet
interface
]
•
interface
— Ethernet port.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no guidelines for this command.
console# show lldp configuration
Timer: 30 Seconds
Hold multiplier: 4
Reinit delay: 2 Seconds
Tx delay: 2 Seconds
Port State Optional TLVs Address
1/e1 RX, TX PD, SN, SD, SC 172.16.1.1
1/e2 TX PD, SN 172.16.1.1
1/e3 Disabled
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Example
The following example displays the Link Layer Discovery Protocol (LLDP) Media Endpoint
Discovery (MED) configuration.
show lldp local
To display the Link Layer Discovery Protocol (LLDP) information that is advertised from a specific
port, use the
show lldp local
command in privileged EXEC mode.
Syntax
• show lldp local ethernet interface
•
Interface
— Ethernet port
Command Modes
Privileged EXEC mode.
console# show lldp med configuration
Network policy 1
-------------------
Application type: Voice
VLAN ID: 2 tagged
Layer 2 priority: 0
DSCP: 0
Port Capabilities Network Policy Location PoE
---------- ---------- ---------- -------- ----
1/e1 Yes Yes: 1 Yes Yes
1/e2 Yes Yes: 1 Yes Yes
1/e3 Yes No No Yes
console# show lldp med configuration ethernet 1/1
Port Capabilities Network Policy Location PoE
---------- ---------- ---------- -------- ----
1/e1 Yes Yes: 1 Yes Yes
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User Guidelines
• There are no user guidelines for this command.
Example
The following example displays the Link Layer Discovery Protocol (LLDP) information that is
advertised from a specific port.
console# show lldp local ethernet 1/e1
Device ID: 0060.704C.73FF
Port ID: 1
Capabilities: Bridge
System Name: ts-7800-1
System description:
Port description:
Management address: 172.16.1.8
802.3 MAC/PHY Configuration/Status
Auto-negotiation support: Supported
Auto-negotiation status: Enabled
Auto-negotiation Advertised Capabilities: 100BASE-TX full duplex,
1000BASE-T full duplex
Operational MAU type: 1000BaseTFD
LLDP-MED capabilities: Network Policy, Location Identification
LLDP-MED Device type: Network Connectivity
LLDP-MED Network policy
Application type: Voice
Flags: Tagged VLAN
VLAN ID: 2
Layer 2 priority: 0
DSCP: 0
LLDP-MED Power over Ethernet
Device Type: Power Sourcing Entity
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show lldp neighbors
Syntax
•
show lldp neighbors
[
ethernet
interface
]
•
Interface
— Ethernet port
Command Modes
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays information about neighboring devices discovered using Link Layer
Discovery Protocol (LLDP).
console# show lldp neighbors
Port Device ID Port ID Hold
Time
Capabilities System
Name
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---- ------ ---- ------ ------- --------
e1 0060.704C.73FE 1 117 B ts-7800-2
e1 0060.704C.73FD 1 93 B ts-7800-2
e2 0060.704C.73F C 9 1 B, R ts-7900-1
e3 0060.704C.73FB 1 92 W ts-7900-2
console# show lldp neighbors ethernet g1
Device ID: 0060.704C.73FE
Port ID: 1
Hold Time: 117
Capabilities: B
System Name: ts-7800-2
System description:
Port description:
Management address: 172.16.1.1
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Login Banner
banner exec
The banner exec Global Configuration mode command specifies and enables a message to be displayed
when an EXEC process is created (The user has successfully logged in). Use the no form of this command to
delete the existing EXEC banner.
Syntax
•
banner exec
d
message
d
• no banner exec
•
d
— Delimiting character, for example a pound sign (#). A delimiting character cannot be used in the
banner message.
•
message
— Message text. The message must start in a new line and can be a multi-line message.
Tokens in the form $(token) in the message text can be included. Tokens are replaced with the
corresponding configuration variable. Tokens are described in the usage guidelines.
Default Configuration
Disabled (no EXEC banner is displayed).
Command Mode
Global Configuration mode.
User Guidelines
• Follow this command with one or more blank spaces and a delimiting character. Then enter one or more
lines of text, terminating the message with the second occurrence of the delimiting character.
• When a user connects to a device, the message-of-the-day (MOTD) banner appears first, followed by the
login banner and prompts. After the user logs in to the device, the EXEC banner is displayed.
• To customize the banner, use tokens in the form $(token) in the message text.
The following table displays the tokens.
Token Information displayed in the banner
$(hostname) Displays the host name for the device.
$(domain) Displays the domain name for the device.
$(bold) Indicates that the next text is a bold text. Using this token again
indicates the end of the bold text.
19
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• To disable the EXEC banner on a particular line or lines, use the no exec-banner line configuration
command.
Example
The following example sets an EXEC banner that uses tokens. The percent sign (%) is used as a delimiting
character. Notice that the $(token) syntax is replaced by the corresponding configuration variable.
banner login
The banner login Global Configuration mode command specifies and enables a message to be displayed
before the username and password login prompts. Use the no form of this command to delete the existing
Login banner.
Syntax
• banner login
d message d
• no banner login
•
d
— Delimiting character, for example a pound sign (#). A delimiting character cannot be used in the
banner message.
$(inverse) Indicates that the next text is an inverse text. Using this token again
indicates the end of the inverse text.
$(contact) Displays the system contact string.
$(location) Displays the system location string.
$(mac-address) Displays the base MAC address of the device.
Console# (config)# banner exec %
Enter TEXT message. End with the character '%'.
$(bold)Session activated.$(bold) Enter commands at the prompt.
%
When a user logs on to the system, the following output is displayed:
Session activated. Enter commands at the prompt.
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•
message
— Message text. The message must start in a new line and can be a multi-line message.
Tokens in the form $(token) in the message text can be included. Tokens are replaced with the
corresponding configuration variable. Tokens are described in the usage guidelines.
Default Configuration
Disabled (no Login banner is displayed).
Command Mode
Global Configuration mode.
User Guidelines
• Follow this command with one or more blank spaces and a delimiting character. Then enter one or more
lines of text, terminating the message with the second occurrence of the delimiting character.
• When a user connects to a device, the message-of-the-day (MOTD) banner appears first, followed by the
login banner and prompts. After the user logs in to the device, the EXEC banner is displayed.
• To customize the banner, use tokens in the form $(token) in the message text.
The following table displays the tokens.
• To disable the EXEC banner on a particular line or lines, use the no exec-banner line configuration
command.
Token Information displayed in the banner
$(hostname) Displays the host name for the device.
$(domain) Displays the domain name for the device.
$(bold) Indicates that the next text is a bold text. Using this token again
indicates the end of the bold text.
$(inverse) Indicates that the next text is an inverse text. Using this token again
indicates the end of the inverse text.
$(contact) Displays the system contact string.
$(location) Displays the system location string.
$(mac-address) Displays the base MAC address of the device.
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Example
The following example sets a Login banner that uses tokens. The percent sign (%) is used as a delimiting
character. Notice that the $(token) syntax is replaced by the corresponding configuration variable.
banner motd
The banner motd Global Configuration mode command specifies and enables a message-of-the-day banner.
Use the no form of this command to delete the existing MOTD banner.
Syntax
• banner motd
d message d
• no banner motd
•
d
— Delimiting character, for example a pound sign (#). A delimiting character cannot be used in the
banner message.
•
message
— Message text. The message must start in a new line and can be a multi-line message.
Tokens in the form $(token) in the message text can be included. Tokens are replaced with the
corresponding configuration variable. Tokens are described in the usage guidelines.
Default Configuration
Disabled (no MOTD banner is displayed).
Command Mode
Global Configuration mode.
User Guidelines
• Follow this command with one or more blank spaces and a delimiting character. Then enter one or more
lines of text, terminating the message with the second occurrence of the delimiting character.
Console (config)# banner login %
Enter TEXT message. End with the character '%'.
You have entered $(hostname).$(domain)
%
When the login banner is executed, the user will see the following banner:
You have entered host123.ourdomain.com
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• When a user connects to a device, the message-of-the-day (MOTD) banner appears first, followed by the
login banner and prompts. After the user logs in to the device, the EXEC banner is displayed.
• To customize the banner, use tokens in the form $(token) in the message text.
The following table displays the tokens.
• To disable the EXEC banner on a particular line or lines, use the no exec-banner line configuration
command.
Example
The following example sets a MOTD banner that uses tokens. The percent sign (%) is used as a delimiting
character. Notice that the $(token) syntax is replaced by the corresponding configuration variable..
Token Information displayed in the banner
$(hostname) Displays the host name for the device.
$(domain) Displays the domain name for the device.
$(bold) Indicates that the next text is a bold text. Using this token again
indicates the end of the bold text.
$(inverse) Indicates that the next text is an inverse text. Using this token again
indicates the end of the inverse text.
$(contact) Displays the system contact string.
$(location) Displays the system location string.
$(mac-address) Displays the base MAC address of the device.
Console (config)# banner motd %
Enter TEXT message. End with the character '%'.
$(bold)Upgrade$(bold) to all devices begins at March 12
%
When the login banner is executed, the user will see the following banner:
Upgrade to all devices begins at March 12
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exec-banner
The exec-banner Line Configuration mode command enables the display of exec banners. Use the no form
of this command to disable the display of exec banners.
Syntax
•
exec-banner
• no exec-banner
Default Configuration
Enabled
Command Mode
Line Configuration mode
User Guidelines
• There are no user guidelines for this command.
Example
The following example enables the display of exec banners.
login-banner
The login-banner Line Configuration mode command enables the display of login banners. Use the no form
of this command to disable the display of login banners.
Syntax
• login-banner
• no login-banner
Default Configuration
Enabled.
Command Mode
Line Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Console (config)# line console
Console(config-line)# exec-banner
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Example
The following example enables the display of login banners.
motd-banner
The motd-banner Line Configuration mode command enables the display of message-of-the-day banners.
Use the no form of this command to disable the display of motd banners.
Syntax
• motd-banner
• no motd-banner
Default Configuration
Enabled
Command Mode
Line Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example enables the display of message-of-the-day banners.
show banner
The show banner
Privileged EXEC
mode command displays the banners configuration.
Syntax
• show banner motd
• show banner login
• show banner exec
Console# Console (config)# line console
Console(config-line)# login-banner
Console# Console (config)# line console
Console(config-line)# motd-banner
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays the banners configuration.
Device> show motd
Console: Enabled
Telnet: Enabled
SSH: Enabled
MOTD Message
$(bold)Upgrade$(bold) to all devices begins at March 12
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PHY Diagnostics Commands 291
20
PHY Diagnostics Commands
test copper-port tdr
The test copper-port tdr Privileged EXEC mode command uses Time Domain Reflectometry
(TDR) technology to diagnose the quality and characteristics of a copper cable attached to a port.
Syntax
•
test copper-port tdr
interface
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• The port to be tested should be shut down during the test, unless it is a combination port with
fiber port active.
• The maximum length of the cable for the TDR test is 120 meter.
Examples
The following example results in a report on the cable attached to port 1/e3.
Console# test copper-port tdr 1/e3
Cable is open at 64 meters
Console# test copper-port tdr 2/e3
Can’t perform this test on fiber ports
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show copper-ports tdr
The show copper-ports tdr User EXEC mode command displays information on the last Time
Domain Reflectometry (TDR) test performed on copper ports.
•
show copper-ports tdr
[
interface
]
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
• The maximum length of the cable for the TDR test is 120 meter.
Example
The following example displays information on the last TDR test performed on all copper ports.
show copper-ports cable-length
The show copper-ports cable-length User EXEC mode command displays the estimated copper
cable length attached to a port.
Syntax
•
show copper-ports cable-length
[
interface
]
•
interface
— A valid Ethernet port. (Full syntax:
unit/port
)
Console> show copper-ports tdr
Port Result Length [meters] Date
---- ------- -------- -----
1/e1 OK
1/e2 Short 50 13:32:00 23 July 2005
1/e3 Test has not been performed
1/e4 Open 64 13:32:00 23 July 2005
1/e5 OK - -
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Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
• The port must be active and working in 100M or 1000M mode.
Example
The following example displays the estimated copper cable length attached to all ports.
Console> show copper-ports cable-length
Port Length [meters]
---- ---------------------
1/e1 < 50
1/e2 Copper not active
1/e3 110-140
1/g1 Fiber
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Power over Ethernet Commands 295
21
Power over Ethernet Commands
power inline
The port inline Interface Configuration (Ethernet) mode command configures the administrative
mode of inline power on an interface.
Syntax
•
power inline
{auto | never}
•
auto
—
Enables the device discovery protocol and, if found, supplies power to the device.
•
never
—
Disables the device discovery protocol and stops supplying power to the device.
Default Configuration
The device discovery protocol is enabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables powered device discovery protocol on port 1/e1, so that power will
be supplied to a discovered device.
power inline powered-device
The power inline powered-device Interface Configuration (Ethernet) mode command adds a
comment or description of the powered device type to enable the user to remember what is attached
to the interface. Use the no form of this command to remove the description.
Console(config)# interface ethernet 1/e1
Console(config-if)# power inline auto
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Syntax
•
power inline powered-device
pd-type
•
no power inline powered-device
•
pd-type
—
Specifies the type of powered device attached to the interface. (Range: 1 - 24
characters)
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures a description to an IP-phone to a powered device connected to
Ethernet interface 1/e1.
power inline priority
The power inline priority Interface Configuration (Ethernet) mode command configures the inline
power management priority of the interface. Use the no form of this command to return to the
default configuration.
Syntax
•
power inline priority {critical | high | low}
•
no power inline priority
•
critical
—
Indicates that operating the powered device is critical.
•
high
—
Indicates that operating the powered device has high priority.
•
low
—
Indicates that operating the powered device has low priority.
Default Configuration
The default setting is low priority.
Command Mode
Interface Configuration (Ethernet) mode.
Console(config)# interface ethernet 1/e1
Console(config-if)# power inline powered-device IP-phone
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User Guidelines
• An unlimited number of ports can be configured as critical, high or low.
• As power becomes unavailable, critical and high ports continue to receive power at the expense
of low ports.
Example
The following example configures the device connected to Ethernet interface 1/e1 as a high-
priority powered device.
power inline usage-threshold
The power inline usage-threshold Global Configuration mode command configures the threshold
for initiating inline power usage alarms. Use the no form of this command to return to the default
configuration.
Syntax
•
power inline usage-threshold
percentage
•
no power inline usage-threshold
•
percentage
—
Specifies the threshold as a percentage to compare measured power.
(Range: 1 - 99)
Default Configuration
The default threshold is 95 percent.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the power usage threshold for which alarms are sent to 80%.
Console(config)# interface ethernet 1/e1
Console(config-if)# power inline priority high
console(config)# power inline usage-threshold 80
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power inline traps enable
The power inline traps enable Global Configuration mode command enables inline power traps.
Use the no form of this command to disable inline power traps.
Syntax
•
power inline traps enable
•
no power inline traps
Default Configuration
Inline power traps are disabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables inline power traps to be sent when a power usage threshold is
exceeded.
show power inline
The show power inline User EXEC mode command displays the information about inline power.
Syntax
•
show power inline [interface
interface
]
•
interface —
Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# power inline traps enable
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Example
The following example displays information about inline power.
Console# show power inline
Unit Power Nominal
Power
Consumed
Power
Usage
Threshold
Traps
------ --------- --------- ------------ ---------- --------
1 off 1 Watts 0 Watts (0%) 95 Disable
2 on 370 Watts 0 Watts (0%) 95 Disable
3 off 1 Watts 0 Watts (0%) 95 Disable
4 on 370 Watts 0 Watts (0%) 95 Disable
5 off 1 Watts 0 Watts (0%) 95 Disable
6 on 370 Watts 0 Watts (0%) 95 Disable
7 off 1 Watts 0 Watts (0%) 95 Disable
8 on 370 Watts 0 Watts (0%) 95 Disable
off 1 Watts 0 Watts (0%) 95 Disable
on 370 Watts 0 Watts (0%) 95 Disable
off 1 Watts 0 Watts (0%) 95 Disable
on 370 Watts 0 Watts (0%) 95 Disable
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Console> show power inline ethernet 1/e1
Port Powered
Device
State Status Priority Class
---- ---------- ----- -------- ------ --------
2/e1 Auto Searching low class0
2/e2 Auto Searching low class0
2/e3 Auto Searching low class0
2/e4 Auto Searching low class0
2/e5 Auto Searching low class0
2/e6 Auto Searching low class0
2/e7 Auto Searching low class0
2/e8 Auto Searching low class0
2/e9 Auto Searching low class0
2/e10 Auto Searching low class0
2/e11 Auto Searching low class0
2/e12 Auto Searching low class0
2/e13 Auto Searching low class0
2/e14 Auto Searching low class0
2/e15 Auto Searching low class0
2/e16 Auto Searching low class0
2/e17 Auto Searching low class0
2/e18 Auto Searching low class0
2/e19 Auto Searching low class0
2/e20 Auto Searching low class0
2/e21 Auto Searching low class0
2/e22 Auto Searching low class0
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2/e23 Auto Searching low class0
2/e24 Auto Searching low class0
2/e25 Auto Searching low class0
2/e26 Auto Searching low class0
2/e27 Auto Searching low class0
2/e28 Auto Searching low class0
2/e29 Auto Searching low class0
2/e30 Auto Searching low class0
2/e31 Auto Searching low class0
2/e32 Auto Searching low class0
2/e33 Auto Searching low class0
2/e34 Auto Searching low class0
2/e35 Auto Searching low class0
2/e36 Auto Searching low class0
2/e37 Auto Searching low class0
2/e38 Auto Searching low class0
2/e39 Auto Searching low class0
2/e40 Auto Searching low class0
2/e41 Auto Searching low class0
2/e42 Auto Searching low class0
2/e43 Auto Searching low class0
2/e44 Auto Searching low class0
2/e45 Auto Searching low class0
2/e46 Auto Searching low class0
2/e47 Auto Searching low class0
2/e48 Auto Searching low class0
4/e1 Auto Off low class0
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4/e2 Auto Off low class0
4/e3 Auto Off low class0
4/e4 Auto Off low class0
4/e5 Auto Off low class0
4/e6 Auto Off low class0
4/e7 Auto Off low class0
4/e8 Auto Off low class0
4/e9 Auto Off low class0
4/e10 Auto Off low class0
4/e11 Auto Off low class0
4/e12 Auto Off low class0
4/e13 Auto Off low class0
4/e14 Auto Off low class0
4/e15 Auto Off low class0
4/e16 Auto Off low class0
4/e17 Auto Off low class0
4/e18 Auto Off low class0
4/e19 Auto Off low class0
4/e20 Auto Off low class0
4/e21 Auto Off low class0
4/e22 Auto Off low class0
4/e23 Auto Off low class0
4/e24 Auto Off low class0
6/e1 Auto Off low class0
6/e2 Auto Off low class0
6/e3 Auto Off low class0
6/e4 Auto Off low class0
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The following table describes the significant fields shown in the example:
6/e5 Auto Off low class0
6/e6 Auto Off low class0
6/e7 Auto Off low class0
6/e8 Auto Off low class0
6/e9 Auto Off low class0
6/e10 Auto Off low class0
6/e11 Auto Off low class0
6/e12 Auto Off low class0
6/e13 Auto Off low class0
6/e14 Auto Off low class0
6/e15 Auto Off low class0
6/e16 Auto Off low class0
6/e17 Auto Off low class0
6/e18 Auto Off low class0
Field Description
Power The operational status of the inline power sourcing equipment.
Nominal Power The nominal power of the inline power sourcing equipment in Watts.
Consumed Power Measured usage power in Watts.
Usage Threshold The usage threshold expressed in percents for comparing the measured
power and initiating an alarm if threshold is exceeded.
Traps Indicates if inline power traps are enabled.
Port The Ethernet port number.
Powered Device Description of the powered device type.
State Indicates if the port is enabled to provide power. Can be: Auto or Never.
Priority The priority of the port from the point of view of inline power management.
Can be: Critical, High or Low.
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Status Describes the inline power operational status of the port. Can be: On, Off,
Test-Fail, Testing, Searching or Fault.
Class The power consumption range of the powered device. Can be:Class 0 (0.44
– 12.95), Class 1 (0.44 – 3.84), Class 2 (3.84 – 6.49) or Class 3 (6.49 –
12.95).
Overload Counter Counts the number of overload conditions that has been detected.
Short Counter Counts the number of short conditions that has been detected.
Denied Counter Counts the number of times power has been denied.
Absent Counter Counts the number of times power has been removed because powered
device dropout was detected.
Invalid Signature Counter Counts the number of times an invalid signature of a powered device was
detected.
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Port Channel Commands 305
22
Port Channel Commands
interface port-channel
The interface port-channel Global Configuration mode command enters the interface
configuration mode to configure a specific port-channel.
Syntax
•
interface port-channel
port-channel-number
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Eight aggregated links can be defined with up to eight member ports per port-channel. The
aggregated links’ valid IDs are 1-15.
Example
The following example enters the context of port-channel number 15.
console(config)# inter port-channel 15
console(config-if)# 1
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interface range port-channel
The interface range port-channel Global Configuration mode command enters the interface
configuration mode to configure multiple port-channels.
Syntax
•
interface range
port-channel
{
port-channel-range
|
all
}
•
port-channel-range
— List of valid port-channels to add. Separate non-consecutive
port-channels with a comma and no spaces. A hyphen designates a range of port-channels.
•
all
— All valid port-channels.
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Commands under the interface range context are executed independently on each interface in the
range.
Example
The following example groups port-channels 1, 2 and 6 to receive the same command.
Console(config)# interface range port-channel 1-2,6
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channel-group
The channel-group Interface Configuration (Ethernet) mode command associates a port with a
port-channel. Use the no form of this command to remove a port from a port-channel.
Syntax
•
channel-group
port-channel-number
mode
{
on
|
auto
}
•
no channel-group
•
port-channel_number
— Specifies the number of the valid port-channel for the current port
to join.
•
on
— Forces the port to join a channel without an LACP operation.
•
auto
— Allows the port to join a channel as a result of an LACP operation.
Default Configuration
The port is not assigned to a port-channel.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example forces port 1/e1 to join port-channel 1 without an LACP operation.
Console(config)# interface ethernet 1/e1
Console(config-if)# channel-group 1 mode on
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show interfaces port-channel
The show interfaces port-channel Privileged EXEC mode command displays port-channel
information.
Syntax
•
show interfaces port-channel
[
port-channel-number
]
•
port-channel-number
— Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays information on all port-channels.
Console# show interfaces port-channel
Channel Ports
------- ---------------------------------
1 Active: 1/e1, 2/e2
2 Active: 2/e2, 2/e7 Inactive: 3/e1
3 Active: 3/e3, 3/e8
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Port Monitor Commands 309
23
Port Monitor Commands
port monitor
The port monitor Interface Configuration Ethernet mode command starts a port monitoring
session. Use the no form of this command to stop a port monitoring session.
Syntax
•
port monitor
src-interface
[rx | tx]
•
no port monitor
src-interface
•
src-interface —
Valid Ethernet port. (Full syntax:
unit/port
)
•
rx
—
Monitors received packets only.
•
tx
—
Monitors transmitted packets only.
Default Configuration
Monitors both received and transmitted packets.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• This command enables traffic on one port to be copied to another port, or between the source
port (src-interface) and a destination port (the port being configured). Only a single target port
can be defined per system.
• The port being monitored cannot be set faster than the monitoring port.
• The following restrictions apply to ports configured to be destination ports:
• The port cannot be already configured as a source port.
• The port cannot be a member in a port-channel.
• An IP interface is not configured on the port.
• GVRP is not enabled on the port.
• The port is not a member in any VLAN, except for the default VLAN (will automatically be
removed from the default VLAN).
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• The following restrictions apply to ports configured to be source ports:
• Port monitoring Source Ports must be simple ports, and not port-channels.
• The port cannot be already configured as a destination port.
• All the frames are transmitted as either always tagged or always untagged.
General Restrictions:
• Ports cannot be configured as a group using the
interface range ethernet
command.
NOTE: The Port Mirroring target must be a member of the Ingress VLAN of all Mirroring source ports.
Therefore, Multicast and Broadcast frames in these VLANs are seen more than once. (Actually N+,
where N equals four).
When both transmit (Tx) and receive (Rx) directions of more than one port are monitored, the
capacity may exceed the bandwidth of the target port. In this case, the division of the monitored
packets may not be equal. The user is advised to use caution in assigning port monitoring.
Example
The following example copies traffic on port 1/e8 (source port) to port 1/e1 (destination port).
show ports monitor
The show ports monitor User EXEC mode command displays the port monitoring status.
Syntax
•
show ports monitor
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# interface ethernet 1/e1
Console(config-if)# port monitor 1/e8
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Example
The following example shows how the port monitoring status is displayed.
console# config
console(config)# int ether 1/e2
console(config-if)# port monitor 1/e3
console(config-if)# port monitor 1/e4
console(config-if)# port monitor 1/e5
console(config-if)# port monitor 1/e6
console(config-if)# port monitor 1/e7
Too many monitoring sessions.
console(config-if)#
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QoS Commands 313
24
QoS Commands
qos
The qos Global Configuration mode command enables quality of service (QoS) on the device. Use
the no form of this command to disable QoS on the device.
Syntax
•
qos [basic ]
•
no qos
• basic — QoS basic mode.
Default Configuration
QoS is disabled on the device.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables QoS on the device.
show qos
The show qos User EXEC mode command displays quality of service (QoS) for the device.
Syntax
•
show qos
Default Configuration
This command has no default configuration.
Console(config)# qos
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Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays QoS attributes when QoS is disabled on the device.
priority-queue out num-of-queues
The priority-queue out num-of-queues Global Configuration mode command configures the
number of expedite queues. Use the no form of this command to return to the default configuration.
Syntax
•
priority-queue out num-of-queues
number-of-queues
•
no priority-queue out
num-of-queues
•
number-of-queues
— Assign the number of queues to be expedite queues. The expedite
queues are the queues with higher indexes. (Values: 0 or 4 )
Default Configuration
All queues are expedite queues.
Command Mode
Global Configuration mode.
User Guidelines
• When the specified number of expedite queues is 0, WRR scheduling mechanism is used to
allocate weights to queues in the ratio 1:2:4:8
• When the specified number of expedite queues is 4, queues are allocated priorities according to
the selected trust mode, i.e. according to VPT or DSCP.
console# show qos
Qos: basic
Basic trust: vpt
console#
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Example
The following example configures the number of expedite queues as 0.
traffic-shape
The traffic-shape Interface Configuration (Ethernet, Port-Channel) mode command sets the shaper
on an egress port. Use the no form of this command to disable the shaper.
Syntax
•
traffic-shape
committed-rate
• no traffic-shape
•
committed-rate
— Specifies the average traffic rate (CIR) in kbps. (Range: 64kbps - 1G)
Default Configuration
The default configuration is disabled.
Command Mode
Interface Configuration (Ethernet, Port-Channel) mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example sets the shaper on Ethernet port 1/e15 to 64kpbs committed rate.
rate-limit (Ethernet)
The rate-limit Interface Configuration (Ethernet) mode command limits the rate of the incoming
traffic. Use the no form of this command to disable the rate limit.
Syntax
•
rate-limit
rate
•
no
rate-limit
•
rate
— Specifies the maximum of kilobits per second of ingress traffic on a port. (Range: 62
– 1000000)
Console(config)# priority-queue out num-of-queues 0
console(config)# interface ethernet 1/e15
console(config-if) traffic-shape 64
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Default Configuration
The default configuration is disabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• The command can be enabled on a specific port only if
port storm-control broadcast enable
interface configuration command is not enabled on that port.
Example
The following example limits the rate of the incoming traffic on Ethernet port 1/e15 to 1000kpbs.
wrr-queue cos-map
The wrr-queue cos-map Global Configuration mode command maps Class of Service (CoS) values to
a specific egress queue. return to the default configuration, use the no form of this command.
Syntax
•
wrr-queue cos-map
queue-id cos0...cos7
•
no wrr-queue cos-map
[
queue-id
]
•
queue-id
— Specifies the queue number to which the CoS values are mapped.
•
cos1...cos7
— Specifies CoS values to be mapped to a specific queue. (Range: 0 - 4)
Default Configuration
The map default values for 4 queues:
• Cos0 is mapped to queue 2
• Cos1 is mapped to queue 1
• Cos2 is mapped to queue 1
• Cos3 is mapped to queue 2
• Cos4 is mapped to queue 3
• Cos5 is mapped to queue 3
• Cos6 is mapped to queue 4
• Cos7 is mapped to queue 4
console(config)# interface ethernet 1/e15
console(config-if) rate-limit 1000
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Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example maps CoS 7 to queue 2.
show qos interface
The show qos interface User EXEC mode command displays interface QoS information.
Syntax
•
show qos interface
[
queuing
|
shapers
|
rate-limit
] [
ethernet
interface-number
|
port-channel
number
]
•
queuing
— Displays the queue's strategy (WRR or EF) and the weight for WRR queues and
the CoS to queue map and the EF priority.
•
shapers
— Displays the shaper of the specified interface and the shaper for the queue on the
specified interface.
•
rate-limit
— Displays the rate-limit configuration.
•
ethernet
interface-number
— Valid Ethernet port number.
•
port-channel
number
— Valid port-channel number.
Default Configuration
There is no default configuration for this command.
Command Mode
User EXEC mode.
User Guidelines
• If no keyword is specified, port QoS information (e.g., DSCP trusted, CoS trusted, untrusted,
etc.) is displayed.
• If no interface is specified, QoS information about all interfaces is displayed.
Console(config)# wrr-queue cos-map 2 7
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Examples
The following example displays QoS information about Ethernet port 1/e11.
console# show qos interface
Ethernet e1
Default CoS: 0:
Trust mode: enable
Ethernet e2
Default CoS: 0:
Trust mode: enable
console# show qos interface queuing
Ethernet e1
wrr bandwidth weights and EF priority:
qid weights Ef Priority
1 N/A ena 1
2 N/A ena 2
3 N/A ena 3
4 N/A ena 4
Cos-queue map:
cos qid
0 2
1 1
2 1
3 2
4 3
5 3
6 4
7 4
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qos map dscp-queue
The qos map dscp-queue Global Configuration mode command modifies the DSCP to queue map.
Use the no form of this command to return to the default map.
Syntax
•
qos map dscp-queue
dscp-list to queue-id
•
no qos map dscp-queue [
dscp-list
]
•
dscp-list
— Specify up to 8 DSCP values, separate each DSCP with a space. (Range: 0 - 63)
•
queue-id
— Enter the queue number to which the DSCP value corresponds.
Default Configuration
The following table describes the default map.
Command Mode
Global Configuration mode.
Ethernet e2
wrr bandwidth weights and EF priority:
qid weights Ef Priority
1 N/A ena 1
2 N/A ena 2
3 N/A ena 3
4 N/A ena 4
Cos-queue map:
0 2
1 1
2 1
3 2
4 3
5 3
6 4
74
DSCP value 0-15 16-31 32-47 48-63
Queue-ID 1 2 3 4
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User Guidelines
There are no user guidelines for this command.
Example
The following example maps DSCP values 33, 40 and 41 to queue 1.
qos trust (Global)
The qos trust Global Configuration mode command configures the system to the basic mode and
trust state. Use the no form of this command to return to the untrusted state.
Syntax
•
qos trust
{
cos
|
dscp
}
•
no qos trust
•
cos
— Indicates that ingress packets are classified with packet CoS values. Untagged
packets are classified with the default port CoS value.
•
dscp
— Indicates that ingress packets are classified with packet DSCP values.
Default Configuration
CoS is the default trust mode.
Command Mode
Global Configuration mode.
User Guidelines
• Packets entering a quality of service (QoS) domain are classified at the edge of the QoS domain.
When packets are classified at the edge, the switch port within the QoS domain can be
configured to one of the trusted states because there is no need to classify the packets at every
device in the domain.
• Use this command to specify whether the port is trusted and which fields of the packet to use to
classify traffic.
• When the system is configured as trust DSCP, traffic is mapped to a queue according to the
DSCP-queue map.
Example
The following example configures the system to the DSCP trust state.
Console(config)# qos map dscp-queue 33 40 41 to 1
Console(config)# qos trust dscp
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qos cos
The qos cos Interface Configuration (Ethernet, Port-channel) mode command defines the default
CoS value of a port. Use the no form of this command to return to the default configuration.
Syntax
•
qos cos
default-cos
•
no qos cos
•
default-cos
— Specifies the default CoS value of the port. (Range: 0 - 7)
Default Configuration
Default CoS value of a port is 0.
Command Mode
Interface Configuration (Ethernet, Port-channel) mode.
User Guidelines
• If the port is trusted, the default CoS value of the port is used to assign a CoS value to all
untagged packets entering the port.
Example
The following example configures port 1/e15 default CoS value to 3.
show qos map
The show qos map User EXEC mode command displays all QoS maps.
Syntax
•
show qos map
[
dscp-queue
]
•
dscp-queue
— Indicates the DSCP to queue map.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
Console(config)# interface ethernet 1/e15
Console(config-if) qos cos 3
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User Guidelines
There are no user guidelines for this command.
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Example
The following example displays the DSCP port-queue map.
The following table describes the significant fields shown above.
Console> show qos map
Dscp-queue map:
d1 : d2 0 1 2 3 4 5 6 7 8 9
------------------------------------
0 : 01 01 01 01 01 01 01 01 01 01
1 : 01 01 01 01 01 01 02 02 02 02
2 : 02 02 02 02 02 02 02 02 02 02
3 : 02 02 03 03 03 03 03 03 03 03
4 : 03 03 03 03 03 03 03 03 04 04
5 : 04 04 04 04 04 04 04 04 04 04
6 : 04 04 04 04
Column Description
d1 Decimal Bit 1 of DSCP
d2 Decimal Bit 2 of DSCP
01 - 04 Queue numbers
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RADIUS Commands 325
25
RADIUS Commands
radius-server host
The radius-server host Global Configuration mode command specifies a RADIUS server host.
Use the no form of this command to delete the specified RADIUS host.
Syntax
•
radius-server host
{
ip-address
|
hostname
} [
auth-port
auth-port-number
] [
timeout
timeout
]
[
retransmit
retries
] [
deadtime
deadtime
] [
key
key-string
] [
source
source
] [
priority
priority
]
[
usage
type
]
•
no radius-server host
{
ip-address
|
hostname
}
•
ip-address
— IP address of the RADIUS server host.
•
hostname —
Hostname of the RADIUS server host. (Range: 1 - 158 characters)
•
auth-port-number
— Port number for authentication requests. The host is not used for
authentication if the port number is set to 0. (Range: 0 - 65535)
•
timeout
— Specifies the timeout value in seconds. (Range: 1 - 30)
•
retries
— Specifies the retransmit value. (Range: 1 - 10)
•
deadtime
— Length of time in minutes during which a RADIUS server is skipped over by
transaction requests. (Range: 0 - 2000)
•
key-string
— Specifies the authentication and encryption key for all RADIUS
communications between the device and the RADIUS server. This key must match the
encryption key used on the RADIUS daemon. To specify an empty string, enter "".
(Range: 0 - 128 characters)
•
source
— Specifies the source IP address to use for communication. 0.0.0.0 is interpreted as
request to use the IP address of the outgoing IP interface.
•
priority
— Determines the order in which servers are used, where 0 has the highest priority.
(Range: 0 - 65535)
•
type
— Specifies the usage type of the server. Possible values:
login
,
dot.1x
or
all
.
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Default Configuration
No RADIUS server host is specified.
The port number for authentication requests is 1812.
The usage type is
all
.
Command Mode
Global Configuration mode.
User Guidelines
• To specify multiple hosts, multiple
radius-server host
commands can be used.
• If no host-specific timeout, retries, deadtime or key-string values are specified, global values
apply to each RADIUS server host.
• The address type of the source parameter must be the same as the
ip-address
parameter.
Example
The following example specifies a RADIUS server host with IP address 192.168.10.1,
authentication request port number 20 and a 20-second timeout period.
radius-server key
The radius-server key Global Configuration mode command sets the authentication and
encryption key for all RADIUS communications between the device and the RADIUS daemon.
Use the no form of this command to return to the default configuration.
Syntax
•
radius-server key
[
key-string
]
•
no radius-server key
•
key-string
— Specifies the authentication and encryption key for all RADIUS
communications between the device and the RADIUS server. This key must match the
encryption key used on the RADIUS daemon. (Range: 0 - 128 characters)
Default Configuration
The key-string is an empty string.
Command Mode
Global Configuration mode.
Console(config)# radius-server host 192.168.10.1 auth-port 20
timeout 20
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User Guidelines
There are no user guidelines for this command.
Example
The following example defines the authentication and encryption key for all RADIUS
communications between the device and the RADIUS daemon.
radius-server retransmit
The radius-server retransmit Global Configuration mode command specifies the number of times
the software searches the list of RADIUS server hosts. Use the no form of this command to reset
the default configuration.
Syntax
•
radius-server retransmit
retries
•
no radius-server retransmit
•
retries
— Specifies the retransmit value. (Range: 1 - 10)
Default Configuration
The software searches the list of RADIUS server hosts 3 times.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the number of times the software searches the list of RADIUS
server hosts to 5 times.
radius-server source-ip
The radius-server source-ip Global Configuration mode command specifies the source IP address
used for communication with RADIUS servers. Use the no form of this command to return to the
default configuration.
Console(config)# radius-server key dell-server
console(config)# radius-server retransmit 5
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Syntax
•
radius-server source-ip
source
•
no radius-source-ip
source
•
source
— Specifies a valid source IP address.
Default Configuration
The source IP address is the IP address of the outgoing IP interface.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the source IP address used for communication with RADIUS
servers to 10.1.1.1.
radius-server source-ipv6
The radius-server source-ipv6 Global Configuration mode command specifies the source IPv6
address used for the IPv6 communication with RADIUS servers. Use the no form of this command
to return to the default.
Syntax
•
radius-server source-ipv6
source
•
no radius-server source-ipv6
source
•
source
— Specifies the source IPv6 address.
Default Configuration
The default IP address is the outgoing IP interface.
Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
console(config)# radius-server source-ip 10.1.1.1
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Example
The following example configures the source IPv6 address used for communication with RADIUS
servers.
radius-server timeout
The radius-server timeout Global Configuration mode command sets the interval during which
the device waits for a server host to reply. Use the no form of this command to return to the default
configuration.
Syntax
•
radius-server timeout
timeout
•
no radius-server timeout
•
timeout
— Specifies the timeout value in seconds. (Range: 1 - 30)
Default Configuration
The timeout value is 3 seconds.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the timeout interval to 5 seconds.
radius-server deadtime
The radius-server deadtime Global Configuration mode command improves RADIUS response
time when servers are unavailable. The command is used to cause the unavailable servers to be
skipped. Use the no form of this command to return to the default configuration.
Syntax
•
radius-server deadtime
deadtime
•
no radius-server deadtime
Console (config)# radius-server source-ipv6 3156::98
Console(config)# radius-server timeout 5
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•
deadtime
— Length of time in minutes during which a RADIUS server is skipped over by
transaction requests. (Range: 0 - 2000)
Default Configuration
The deadtime setting is 0.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example sets the deadtime to 10 minutes.
show radius-servers
The show radius-servers Privileged EXEC mode command displays the RADIUS server settings.
Syntax
•
show radius-servers
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# radius-server deadtime 10
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Examples
The following example displays RADIUS server settings.
Console# show radius-servers
IP
address
Port
Auth
TimeOut Retransmit DeadTime Source
IP
Priority Usage
--------- ---- ------- ---------- ------ -------- -------- -----
172.16.1.1
1645 Global Global Global - 1 All
172.16.1.2
1645 11 8 Global Global 2 All
Global values
-------------
TimeOut: 3
Retransmit: 3
Deadtime: 0
Source IP: 172.16.8.1
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26
RMON Commands
show rmon statistics
The show rmon statistics User EXEC mode command displays RMON Ethernet statistics.
Syntax
•
show rmon statistics
{
ethernet
interface number
|
port-channel
port-channel-number
}
•
interface number
— Valid Ethernet port.
•
port-channel-number
— Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays RMON Ethernet statistics for Ethernet port 1/e1.
Console> show rmon statistics ethernet 1/e1
Port: 1/e1
Octets: 0 Packets: 0
Broadcast: 0 Multicast: 0
CRC Align Errors: 0 Collisions: 0
Undersize Pkts: 0 Oversize Pkts: 0
Fragments: 0 Jabbers: 0
64 Octets: 0 65 to 127 Octets: 0
128 to 255 Octets: 0 256 to 511 Octets: 0
512 to 1023 Octets: 0 1024 to max Octets: 0
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The following table describes significant fields shown above:
Field Description
Octets The total number of octets of data (including those in bad packets) received on the
network (excluding framing bits but including FCS octets).
Packets The total number of packets (including bad packets, Broadcast packets, and
Multicast packets) received.
Broadcast The total number of good packets received and directed to the Broadcast address.
This does not include Multicast packets.
Multicast The total number of good packets received and directed to a Multicast address.
This number does not include packets directed to the Broadcast address.
CRC Align Errors The total number of packets received with a length (excluding framing bits, but
including FCS octets) of between 64 and 1632 octets, inclusive, but with either a
bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error)
or a bad FCS with a non-integral number of octets (Alignment Error).
Collisions The best estimate of the total number of collisions on this Ethernet segment.
Undersize Pkts The total number of packets received less than 64 octets long (excluding framing
bits, but including FCS octets) and otherwise well formed.
Oversize Pkts The total number of packets received longer than 1632 octets (excluding framing
bits, but including FCS octets) and otherwise well formed.
Fragments The total number of packets received less than 64 octets in length (excluding
framing bits but including FCS octets) and either a bad Frame Check Sequence
(FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-
integral number of octets (Alignment Error).
Jabbers The total number of packets received longer than 1632 octets (excluding framing
bits, but including FCS octets), and either a bad Frame Check Sequence (FCS)
with an integral number of octets (FCS Error) or a bad FCS with a non-integral
number of octets (Alignment Error).
64 Octets The total number of packets (including bad packets) received that are 64 octets in
length (excluding framing bits but including FCS octets).
65 to 127 Octets The total number of packets (including bad packets) received that are between 65
and 127 octets in length inclusive (excluding framing bits but including FCS
octets).
128 to 255 Octets The total number of packets (including bad packets) received that are between
128 and 255 octets in length inclusive (excluding framing bits but including FCS
octets).
256 to 511 Octets The total number of packets (including bad packets) received that are between
256 and 511 octets in length inclusive (excluding framing bits but including FCS
octets).
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rmon collection history
The rmon collection history Interface Configuration (Ethernet, port-channel) mode command
enables a Remote Monitoring (RMON) MIB history statistics group on an interface. Use the no
form of this command to remove a specified RMON history statistics group.
Syntax
•
rmon
collection history
index
[
owner
ownername
] [
buckets
bucket-number
] [
interval
seconds
]
•
no rmon collection history
index
•
index
— Specifies the statistics group index. (Range: 1 - 65535)
•
ownername
— Specifies the RMON statistics group owner name.
•
bucket-number
— Number of buckets specified for the RMON collection history group of
statistics. If unspecified, defaults to 50. (Range: 1 - 50)
•
seconds
— Number of seconds in each polling cycle. (Range: 1 - 3600)
Default Configuration
RMON statistics group owner name is an empty string.
Number of buckets specified for the RMON collection history statistics group is 50.
Number of seconds in each polling cycle is 1800.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• Cannot be configured for a range of interfaces (range context).
512 to 1023 Octets The total number of packets (including bad packets) received that are between
512 and 1023 octets in length inclusive (excluding framing bits but including FCS
octets).
1024 to 1632 Octets The total number of packets (including bad packets) received that are between
1024 and 1632 octets in length inclusive (excluding framing bits but including
FCS octets).
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Example
The following example enables a Remote Monitoring (RMON) MIB history statistics group on
Ethernet port 1/e1 with index number 1 and a polling interval period of 2400 seconds.
show rmon collection history
The show rmon collection history User EXEC mode command displays the requested RMON
history group statistics.
Syntax
•
show rmon collection history
[
ethernet
interface
|
port-channel
port-channel-number
]
•
interface —
Valid Ethernet port. (Full syntax:
unit/port
)
•
port-channel-number
— Valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays all RMON history group statistics.
Console(config)# interface ethernet 1/e1
Console(config-if)# rmon collection history 1 interval 2400
Console> show rmon collection history
Index Interface Interval Requested
Samples
Granted
Samples
Owner
------ ---------- -------- --------- ---------- ----
1 1/e1 30 50 50 CLI
2 1/e1 1800 50 50 Manager
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The following table describes significant fields shown above:
show rmon history
The show rmon history User EXEC mode command displays RMON Ethernet history statistics.
Syntax
•
show rmon history
index
{
throughput
|
errors | other
} [
period
seconds
]
•
index
— Specifies the requested set of samples. (Range: 1 - 65535)
•
throughput
— Indicates throughput counters.
•
errors
— Indicates error counters.
•
other
— Indicates drop and collision counters.
•
seconds
— Specifies the period of time in seconds. (Range: 1 - 4294967295)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Field Description
Index An index that uniquely identifies the entry.
Interface The sampled Ethernet interface
Interval The interval in seconds between samples.
Requested Samples The requested number of samples to be saved.
Granted Samples The granted number of samples to be saved.
Owner The entity that configured this entry.
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Examples
The following examples displays RMON Ethernet history statistics for index 1.
Console> show rmon history 1 throughput
Sample Set: 1 Owner: CLI
Interface: 1/e1 Interval: 1800
Requested samples: 50 Granted samples: 50
Maximum table size: 500
Time Octets Packets Broadcast Multicast Util
---------- --------- ------- ---------- --------- -----
Jan 18 2002
21:57:00
303595962 357568 3289 7287 19%
Jan 18 2002
21:57:30
287696304 275686 2789 5878 20%
Console> show rmon history 1 errors
Sample Set: 1 Owner: Me
Interface: 1/e1 Interval: 1800
Requested samples: 50 Granted samples: 50
Maximum table size: 500 (800 after reset)
Time CRC Align Undersize Oversize Fragments Jabbers
---------- --------- --------- -------- --------- -------
Jan 18 2002
21:57:00
110490
Jan 18 2002
21:57:30
1 1 0 27 0
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The following table describes significant fields shown above:
Console> show rmon history 1 other
Sample Set: 1 Owner: Me
Interface: 1/e1 Interval: 1800
Requested samples: 50 Granted samples: 50
Maximum table size: 500
Time Dropped Collisions
-------------------- -------- ----------
Jan 18 2002 21:57:00 3 0
Jan 18 2002 21:57:30 3 0
Field Description
Time Date and Time the entry is recorded.
Octets The total number of octets of data (including those in bad packets) received on the
network (excluding framing bits but including FCS octets).
Packets The number of packets (including bad packets) received during this sampling interval.
Broadcast The number of good packets received during this sampling interval that were directed to
the Broadcast address.
Multicast The number of good packets received during this sampling interval that were directed to a
Multicast address. This number does not include packets addressed to the Broadcast
address.
Util The best estimate of the mean physical layer network utilization on this interface during
this sampling interval, in hundredths of a percent.
CRC Align The number of packets received during this sampling interval that had a length (excluding
framing bits but including FCS octets) between 64 and 1632 octets, inclusive, but had
either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error)
or a bad FCS with a non-integral number of octets (Alignment Error).
Undersize The number of packets received during this sampling interval less than 64 octets long
(excluding framing bits but including FCS octets) and were otherwise well formed.
Oversize The number of packets received during this sampling interval longer than 1632 octets
(excluding framing bits but including FCS octets) but were otherwise well formed.
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rmon alarm
The rmon alarm Global Configuration mode command configures alarm conditions. Use the no
form of this command to remove an alarm.
Syntax
•
rmon alarm
index variable interval rthreshold fthreshold revent fevent
[
type
type
] [
startup
direction
] [
owner
name
]
•
no rmon alarm
index
•
index
— Specifies the alarm index. (Range: 1 - 65535)
•
variable
— Specifies the object identifier of the particular variable to be sampled.
•
interval
— Specifies the interval in seconds during which the data is sampled and compared
with rising and falling thresholds. (Range: 1 - 4294967295)
•
rthreshold
— Specifies the rising threshold. (Range: 0 - 4294967295)
•
fthreshold
— Specifies the falling threshold. (Range: 0 - 4294967295)
•
revent
— Specifies the event index used when a rising threshold is crossed.
(Range: 1 - 65535)
•
fevent
— Specifies the event index used when a falling threshold is crossed.
(Range: 1 - 65535)
Fragments The total number of packets received during this sampling interval that were less than 64
octets in length (excluding framing bits but including FCS octets) had either a bad Frame
Check Sequence (FCS) with an integral number of octets (FCS Error), or a bad FCS with
a non-integral number of octets (AlignmentError). It is normal for etherHistoryFragments
to increment because it counts both runts (which are normal occurrences due to collisions)
and noise hits.
Jabbers The number of packets received during this sampling interval that were longer than 1632
octets (excluding framing bits but including FCS octets), and had either a bad Frame
Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a
non-integral number of octets (Alignment Error).
Dropped The total number of events in which packets were dropped by the probe due to lack of
resources during this sampling interval. This number is not necessarily the number of
packets dropped, it is just the number of times this condition has been detected.
Collisions The best estimate of the total number of collisions on this Ethernet segment during this
sampling interval.
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•
type
— Specifies the method used for sampling the selected variable and calculating the
value to be compared against the thresholds. Possible values are
absolute
and
delta
.
If the method is
absolute
, the value of the selected variable is compared directly with the
thresholds at the end of the sampling interval. If the method is
delta
, the selected variable
value of the last sample is subtracted from the current value, and the difference is compared
with the thresholds.
•
direction
— Specifies the alarm that may be sent when this entry is first set to valid. Possible
values are
rising
,
rising-falling
and
falling
.
If the first sample (after this entry becomes valid) is greater than or equal to
rthreshold
and
direction
is equal to
rising
or
rising-falling
, a single rising alarm is generated. If the first
sample (after this entry becomes valid) is less than or equal to
fthreshold
and
direction
is
equal to
falling
or
rising-falling
, a single falling alarm is generated.
•
name
— Specifies the name of the person who configured this alarm. If unspecified, the
name is an empty string.
Default Configuration
The type is
absolute
.
The startup direction is
rising-falling
.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the following alarm conditions:
• Alarm index — 1000
•Variable
identifier — dell
• Sample interval — 360000 seconds
• Rising threshold — 1000000
• Falling threshold — 1000000
• Rising threshold event index — 10
• Falling threshold event index — 20
Console(config)# rmon alarm 1000 dell 360000 1000000 1000000 10 20
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show rmon alarm-table
The show rmon alarm-table User EXEC mode command displays the alarms table.
Syntax
•
show rmon alarm-table
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the alarms table.
The following table describes significant fields shown above:
show rmon alarm
The show rmon alarm User EXEC mode command displays alarm configuration.
Syntax
•
show rmon alarm
number
Console> show rmon alarm-table
Index OID Owner
----- ---------------------- --------------
1 1.3.6.1.2.1.2.2.1.10.1 CLI
2 1.3.6.1.2.1.2.2.1.10.1 Manager
3 1.3.6.1.2.1.2.2.1.10.9 CLI
Field Description
Index An index that uniquely identifies the entry.
OID Monitored variable OID.
Owner The entity that configured this entry.
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•
number
— Specifies the alarm index. (Range: 1 - 65535)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays RMON 1 alarms.
The following table describes the significant fields shown in the display:
Console> show rmon alarm 1
Alarm 1
-------
OID: 1.3.6.1.2.1.2.2.1.10.1
Last sample Value: 878128
Interval: 30
Sample Type: delta
Startup Alarm: rising
Rising Threshold: 8700000
Falling Threshold: 78
Rising Event: 1
Falling Event: 1
Owner: CLI
Field Description
Alarm Alarm index.
OID Monitored variable OID.
Last Sample Value The statistic value during the last sampling period. For example, if the sample
type is delta, this value is the difference between the samples at the beginning
and end of the period. If the sample type is absolute, this value is the sampled
value at the end of the period.
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rmon event
The rmon event Global Configuration mode command configures an event. Use the no form of
this command to remove an event.
Syntax
•
rmon event
index type
[
community
text
]
[
description
text
] [
owner
name
]
•
no rmon event
index
•
index
— Specifies the event index. (Range: 1 - 65535)
•
type
— Specifies the type of notification generated by the device about this event. Possible
values:
none
,
log
,
trap
,
log-trap
.
•
community
text
— If the specified notification type is
trap
, an SNMP trap is sent to the
SNMP community specified by this octet string. (Range: 0 - 127 characters)
•
description
text
— Specifies a comment describing this event. (Range: 0 - 127 characters)
•
name
— Specifies the name of the person who configured this event. If unspecified, the
name is an empty string.
Interval The interval in seconds over which the data is sampled and compared with the
rising and falling thresholds.
Sample Type The method of sampling the variable and calculating the value compared against
the thresholds. If the value is absolute, the value of the variable is compared
directly with the thresholds at the end of the sampling interval. If the value is
delta, the value of the variable at the last sample is subtracted from the current
value, and the difference compared with the thresholds.
Startup Alarm The alarm that may be sent when this entry is first set. If the first sample is greater
than or equal to the rising threshold, and startup alarm is equal to rising or rising
and falling, then a single rising alarm is generated. If the first sample is less than
or equal to the falling threshold, and startup alarm is equal falling or rising and
falling, then a single falling alarm is generated.
Rising Threshold A sampled statistic threshold. When the current sampled value is greater than or
equal to this threshold, and the value at the last sampling interval is less than this
threshold, a single event is generated.
Falling Threshold A sampled statistic threshold. When the current sampled value is less than or
equal to this threshold, and the value at the last sampling interval is greater than
this threshold, a single event is generated.
Rising Event The event index used when a rising threshold is crossed.
Falling Event The event index used when a falling threshold is crossed.
Owner The entity that configured this entry.
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Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
•If
log
is specified as the notification type, an entry is made in the log table for each event. If
trap
is specified, an SNMP trap is sent to one or more management stations.
Example
The following example configures an event identified as index 10 and for which the device
generates a notification in the log table.
show rmon events
The show rmon events User EXEC mode command displays the RMON event table.
Syntax
•
show rmon events
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# rmon event 10 log
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Example
The following example displays the RMON event table.
The following table describes significant fields shown above:
show rmon log
The show rmon log User EXEC mode command displays the RMON log table.
Syntax
•
show rmon log
[
event
]
•
event
— Specifies the event index. (Range: 0 - 65535)
Default Configuration
This command has no default configuration.
Console> show rmon events
Index Description Type Community Owner Last time sent
----- ----------- -------- --------- ------- --------------
------
1 Errors Log CLI Jan 18 2002
23:58:17
2 High
Broadcast
Log-Trap device Manager Jan 18 2002
23:59:48
Field Description
Index An index that uniquely identifies the event.
Description A comment describing this event.
Type The type of notification that the device generates about this event. Can have the
following values: none, log, trap, log-trap. In the case of log, an entry is made in
the log table for each event. In the case of trap, an SNMP trap is sent to one or more
management stations.
Community If an SNMP trap is to be sent, it is sent to the SNMP community specified by this
octet string.
Owner The entity that configured this event.
Last time sent The time this entry last generated an event. If this entry has not generated any events,
this value is zero.
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Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the RMON log table.
The following table describes the significant fields shown in the display:
Console> show rmon log
Maximum table size: 500
Event Description Time
------- -------------- ---------
1 Errors Jan 18 2002 23:48:19
1 Errors Jan 18 2002 23:58:17
2 High Broadcast Jan 18 2002 23:59:48
Console> show rmon log
Maximum table size: 500 (800 after reset)
Event Description Time
------- -------------- ---------
1 Errors Jan 18 2002 23:48:19
1 Errors Jan 18 2002 23:58:17
2 High Broadcast Jan 18 2002 23:59:48
Field Description
Event An index that uniquely identifies the event.
Description A comment describing this event.
Time The time this entry was created.
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rmon table-size
The rmon table-size Global Configuration mode command configures the maximum size of
RMON tables. Use the no form of this command to return to the default configuration.
Syntax
•
rmon table-size
{
history
entries
|
log
entries
}
•
no rmon table-size
{
history
|
log
}
•
history
entries
— Maximum number of history table entries. (Range: 20 - 270)
•
log
entries
— Maximum number of log table entries. (Range: 20 - 100)
Default Configuration
History table size is 270.
Log table size is 200.
Command Mode
Global Configuration mode.
User Guidelines
• The configured table size takes effect after the device is rebooted.
Example
The following example configures the maximum RMON history table sizes to 100 entries.
Console(config)# rmon table-size history 100
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SNMP Commands 349
27
SNMP Commands
snmp-server community
The snmp-server community Global Configuration mode command configures the community
access string to permit access to the SNMP protocol. Use the no form of this command to remove
the specified community string.
Syntax
•
snmp-server community
community
[
ro
|
rw
|
su
] [
ipv4-address
|
ipv6-address
] [
view
view-
name
]
•
snmp-server community-group
community group-name
[
ipv4-address
|
ipv6-address
]
•
no snmp-server community
community
[
ipv4-address
|
ipv6-address
]
•
community —
Community string that acts like a password and permits access to the SNMP
protocol. (Range: 1 - 20 characters)
•
ro
— Indicates read-only access (default).
•
rw
— Indicates read-write access.
•
su
— Indicates SNMP administrator access.
•
view
view-name
— Name of a previously defined view. The view defines the objects
available to the community. It’s not relevant for
su
,
which has an access to the whole MIB. If
unspecified, all the objects except of the community-table and SNMPv3 user and access
tables are available. (Range: 1 - 30 characters)
•
ipv4-address
— Management station IPv4 address. Default is all IP addresses.
•
ipv6-address
— Management station IPv6 address. Default is all IP addresses.
•
group-name
— Specifies the name of a previously defined group. A group defines the
objects available to the community. (Range: 1 - 30 characters)
Default Configuration
No communities are defined.
Command Mode
Global Configuration mode.
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User Guidelines
•The
view-name
parameter cannot be specified for
su
, which has access to the whole MIB.
•The
view-name
parameter can be used to restrict the access rights of a community string. When
it is specified:
– An internal security name is generated.
– The internal security name for SNMPv1 and SNMPv2 security models is mapped to an
internal group name.
– The internal group name for SNMPv1 and SNMPv2 security models is mapped to a view-
name (read-view and notify-view always, and for
rw
for write-view also)
•The
group-name
parameter can also be used to restrict the access rights of a community string.
When it is specified:
– An internal security name is generated.
– The internal security name for SNMPv1 and SNMPv2 security models is mapped to the
group name.
•The
no snmp-server community
command is used to remove a community or a community
group.
Examples
The following example defines community access string public to permit administrative access to
SNMP protocol at an administrative station with IP address 192.168.1.20.
snmp-server view
The snmp-server view Global Configuration mode command creates or updates a Simple Network
Management Protocol (SNMP) server view entry. Use the no form of this command to remove a
specified SNMP server view entry.
Syntax
•
snmp-server view
view-name oid-tree
{included | excluded}
•
no snmp-server view
view-name
[
oid-tree
]
•
view-name
— Specifies the label for the view record that is being created or updated. The
name is used to reference the record. (Range: 1 - 30 characters)
•
oid-tree
— Specifies the object identifier of the ASN.1 subtree to be included or excluded
from the view. To identify the subtree, specify a text string consisting of numbers, such as
1.3.6.2.4, or a word, such as system. Replace a single subidentifier with the asterisk (*)
wildcard to specify a subtree family; for example 1.3.*.4. You may also identify the subtree
by specifying its logical name; for example, "IfEntry.*.1".
Console(config)# snmp-server community public su 192.168.1.20
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•
included
— Indicates that the view type is included.
•
excluded
— Indicates that the view type is excluded.
Default Configuration
No view entry exists.
Command Mode
Global Configuration mode.
User Guidelines
• This command can be entered multiple times for the same view record.
• The number of views is limited to 64 including pre-configured views.
• No check is made to determine that a MIB node corresponds to the "starting portion" of the OID
until the first wildcard.
• Following is a list of unsupported counters in the Iftable MIB:
– ifInDiscards
– ifOutErrors
–ifOutQLen
–ifHCInOctets
–ifHCInUcastPkts
– ifHCInMulticastPkts
–ifHCInBroadcastPkts
– ifHCOutOctets
–ifHCOutUcastPkts
– ifHCOutMulticastPkts
– ifHCOutBroadcastPkts
• The following counters are also not supported
– Alignment errors
– Multiple Collision Frames
– SQE Test Errors
– Ryan Sense Errors
– Symbol Errors
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Examples
The following example creates a view that includes all objects in the MIB-II system group except
for sysServices (System 7) and all objects for interface 1 in the MIB-II interface group.
snmp-server group
The snmp-server group Global Configuration mode command configures a new Simple
Management Protocol (SNMP) group or a table that maps SNMP users to SNMP views. Use the no
form of this command to remove a specified SNMP group.
Syntax
•
snmp-server group
groupname {
v1
|
v2
|
v3
{
noauth
|
auth
|
priv
} [
notify
notifyview ] } [
read
readview] [
write
writeview]
•
no snmp-server group
groupname [
v1
|
v2
|
v3
[
noauth
|
auth
|
priv
]] [
context
name]
•
groupname
— The name of the group. (Range: Up to 30 characters)
•
v1
— SNMP
Version 1 security model.
•
v2
— SNMP
Version 2 security model.
•
v3
— SNMP
Version 3 security model.
•
noauth
— Specifies no authentication of a packet. Applicable only to SNMP
Version 3
security model.
•
auth
— Specifies authentication of a packet without encrypting it. Applicable only to SNMP
Version 3 security model.
•
priv
—Specifies authentication of a packet with encryption. Applicable only to SNMP
Version 3 security model.
•
read
readview
— A
string that is the name of the view that enables you only to view the
contents of the agent. If unspecified, all the objects except of the community-table and
SNMPv3 user and access tables are available. (Range: Up to 30 characters)
•
write
writeview
— A string that is the name of the view that enables you to enter data and
configure the contents of the agent. If unspecified, nothing is defined for the write view.
(Range: Up to 30 characters)
•
notify
notifyview
— A string that is the name of the view that enables you to specify an
inform or a trap. If unspecified, nothing is defined for the notify view. (Range: Up to 30
characters.)
Console(config)# snmp-server view user-view system included
Console(config)# snmp-server view user-view system.7 excluded
Console(config)# snmp-server view user-view ifEntry.*.1 included
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Default Configuration
No group entry exists.
Command Mode
Global Configuration mode.
User Guidelines
The index of the group name table is comprised of Group Name, Security Model, and Security
Level. Different views for the same group can be defined with different security levels. For
example, after having created the appropriate views, a group can be created for which "no
authentication" is required, while allowing only notification view for "interfaces". A group of the
same name can be created for which "priv" authentication is required. Read views can, for
example, be configured for this group for mib2, and write views for interfaces. In this case, users
in this group who send "priv" packets can modify all "interfaces" MIBs and view all mib2.
Examples
The following example attaches a group called user-group to SNMPv3 and assigns to the group the
privacy security level and read access rights to a view called user-view.
snmp-server user
The snmp-server user Global Configuration mode command configures a new SNMP Version 3
user. Use the no form of this command to remove a user.
Syntax
•
snmp-server user
username
groupname
[remote
engineid-string
] [ auth-md5
password
| auth-
sha
password
| auth-md5-key
md5-des-keys
| auth-sha-key
sha-des-keys
]
•
no snmp-server user
username
[remote
engineid-string
]
•
username
— Specifies the name of the user on the host that connects to the agent. (Range: 1
- 30 characters)
•
groupname
— Specifies the name of the group to which the user belongs. (Range: 1 - 30
characters)
•
engineid-string
— Specifies the engine ID of the remote SNMP entity to which the user
belongs. The engine ID is a concatenated hexadecimal string. Each byte in the hexadecimal
character string is two hexadecimal digits. Each byte can be separated by a period or colon.
(Range: 5 - 32 characters)
Console(config)# snmp-server group user-group v3 priv read
user-view
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•
auth-md5
password
— Indicates the HMAC-MD5-96 authentication level. The user should
enter a password for authentication and generation of a DES key for privacy. (Range: 1 - 32
characters)
•
auth-sha
password
— Indicates the HMAC-SHA-96 authentication level. The user should
enter a password for authentication and generation of a DES key for privacy. (Range: 1 - 32
characters)
•
auth-md5-key
md5-des-keys
— Indicates the HMAC-MD5-96 authentication level. The
user should enter a concatenated hexadecimal string of the MD5 key (MSB) and the privacy
key (LSB). If authentication is only required, 16 bytes should be entered; if authentication
and privacy are required, 32 bytes should be entered. Each byte in the hexadecimal character
string is two hexadecimal digits. Each byte can be separated by a period or colon. (16 or 32
bytes)
•
auth-sha-key
sha-des-keys
— Indicates the HMAC-SHA-96 authentication level. The user
should enter a concatenated hexadecimal string of the SHA key (MSB) and the privacy key
(LSB). If authentication is only required, 20 bytes should be entered; if authentication and
privacy are required, 36 bytes should be entered. Each byte in the hexadecimal character
string is two hexadecimal digits. Each byte can be separated by a period or colon. (20 or 36
bytes)
Default Configuration
No group entry exists.
Command Mode
Global Configuration mode.
User Guidelines
• If auth-md5 or auth-sha is specified, both authentication and privacy are enabled for the user.
•When a
show running-config
Privileged EXEC mode command is entered, a line for this user
will not be displayed. To see if this user has been added to the configuration, type the
show
snmp users
Privileged EXEC mode command.
• An SNMP EngineID has to be defined to add SNMP users to the device. Changing or removing
the SNMP EngineID value deletes SNMPv3 users from the device’s database.
• The remote engineid designates the remote management station and should be defined to enable
the device to receive informs.
Examples
The following example configures an SNMPv3 user John in group user-group.
Console(config)# snmp-server user John user-group
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snmp-server engineID local
The snmp-server engineID local Global Configuration mode command specifies the Simple
Network Management Protocol (SNMP) engineID on the local device. Use the no form of this
command to remove the configured engine ID.
Syntax
•
snmp-server engineID local
{
engineid-string
|
default
}
•
no snmp-server engineID local
•
engineid-string
— Specifies a character string that identifies the engine ID. (Range: 9 - 64
hexa characters)
•
default
— The engine ID is created automatically based on the device MAC address.
Default Configuration
The engine ID is not configured.
If SNMPv3 is enabled using this command, and the default is specified, the default engine ID is
defined per standard as:
• First 4 octets — first bit = 1, the rest is IANA Enterprise number = 674.
• Fifth octet — set to 3 to indicate the MAC address that follows.
• Last 6 octets — MAC address of the device.
Command Mode
Global Configuration mode.
User Guidelines
• To use SNMPv3, you have to specify an engine ID for the device. You can specify your own ID
or use a default string that is generated using the MAC address of the device.
• If the SNMPv3 engine ID is deleted or the configuration file is erased, SNMPv3 cannot be used.
By default, SNMPv1/v2 are enabled on the device. SNMPv3 is enabled only by defining the
Local Engine ID.
• If you want to specify your own ID, you do not have to specify the entire 32-character engine ID
if it contains trailing zeros. Specify only the portion of the engine ID up to the point where just
zeros remain in the value. For example, to configure an engine ID of
123400000000000000000000, you can specify snmp-server engineID local 1234.
• Since the engine ID should be unique within an administrative domain, the following is
recommended:
– For a standalone device, use the default keyword to configure the engine ID.
– For a stackable system, configure the engine ID to be used for the entire stack, and verify
that the stack engine ID is unique throughout the entire management network.
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• Changing the value of the engine ID has the following important side-effect. A user's password
(entered on the command line) is converted to an MD5 or SHA security digest. This digest is
based on both the password and the local engine ID. The user’s command line password is then
destroyed, as required by RFC 2274. As a result, the security digests of SNMPv3 users become
invalid if the local value of the engine ID change, and the users will have to be reconfigured.
• You cannot specify an engine ID that consists of all 0x0, all 0xF or 0x000000001.
•The
show running-config
Privileged EXEC mode command does not display the SNMP engine
ID configuration. To see the SNMP engine ID configuration, enter the
snmp-server engineID
local
Global Configuration mode command.
Examples
The following example enables SNMPv3 on the device and sets the local engine ID of the device to
the default value.
snmp-server enable traps
The snmp-server enable traps Global Configuration mode command enables the device to send
SNMP traps. To disable SNMP traps, use the no form of the command.
Syntax
•
snmp-server enable traps
•
no snmp-server enable traps
Default Configuration
SNMP traps are enabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example enables SNMP traps.
Console(config) # snmp-server engineID local default
Console(config)# snmp-server enable traps
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snmp-server filter
The snmp-server filter Global Configuration mode command creates or updates a Simple
Network Management Protocol (SNMP) server filter entry. Use the no form of this command to
remove the specified SNMP server filter entry.
Syntax
•
snmp-server filter
filter-name oid-tree
{
included | excluded
}
•
no snmp-server filter
filter-name
[
oid-tree
]
•
filter-name
— Specifies the label for the filter record that is being updated or created.
The name is used to reference the record. (Range: 1 - 30 characters)
•
oid-tree
— Specifies the object identifier of the ASN.1 subtree to be included or excluded
from the view. To identify the subtree, specify a text string consisting of numbers, such as
1.3.6.2.4, or a word, such as system. Replace a single sub identifier with the asterisk (*)
wildcard to specify a subtree family; for example, 1.3.*.4. You may also identify the subtree
by specifying its logical name; for example, "IfEntry.*.1".
•
included
— Indicates that the filter type is included.
•
excluded
— Indicates that the filter type is excluded.
Default Configuration
No filter entry exists.
Command Mode
Global Configuration mode.
User Guidelines
This command can be entered multiple times for the same filter record. Later lines take
precedence when an object identifier is included in two or more lines.
Examples
The following example creates a filter that includes all objects in the MIB-II system group except
for sysServices (System 7) and all objects for interface 1 in the MIB-II interfaces group.
Console(config)# snmp-server filter filter-name system included
Console(config)# snmp-server filter filter-name system.7 excluded
Console(config)# snmp-server filter filter-name ifEntry.*.1
included
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snmp-server host
The snmp-server host Global Configuration mode command specifies the recipient of Simple
Network Management Protocol Version 1 or Version 2 notifications. Use the no form of this
command to remove the specified host.
Syntax
•
snmp-server host
{
ip4-address
|
ip6-address
|
hostname
}
community-string
[
traps
|
informs
]
[
1
|
2
] [
udp-port
port
] [
filter
filtername
] [
timeout
seconds
] [
retries
retries
]
•
no snmp-server host
{
ip4-address
|
ip6-address
|
hostname
} [
traps
|
informs
]
•
ip4-address
— The host IPv4 address (the targeted recipient).
•
ip6-address
— The host IPv6 address (the targeted recipient). When the IPv6 address is a
Link Local address (IPv6Z address), the outgoing interface name must be specified. Refer to
the usage guidelines for the interface name syntax.
•
hostname
— Specifies the name of the host. (Range:1 - 158 characters)
•
community-string
— Specifies a password-like community string sent with the notification
operation. (Range: 1 - 20)
•
traps
— Indicates that SNMP traps are sent to this host. If unspecified, SNMPv2 traps are
sent to the host.
•
informs
— Indicates that SNMP informs are sent to this host. Not applicable to SNMPv1.
•
1
— Indicates that SNMPv1 traps will be used.
•
2
— Indicates that SNMPv2 traps will be used. If
•
port
— Specifies the UDP port of the host to use. If unspecified, the default UDP port
number is 162. (Range: 1 - 65535)
•
filtername
— Specifies a string that defines the filter for this host. If unspecified, nothing is
filtered. (Range: 1 - 30 characters)
•
seconds
— Specifies the number of seconds to wait for an acknowledgment before
resending informs. If unspecified, the default timeout period is 15 seconds.
(Range: 1 - 300)
• retries — Specifies the maximum number of times to resend an inform request. If
unspecified, the default maximum number of retries is 3. (Range: 0 - 255)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
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User Guidelines
• When configuring an SNMPv1 or SNMPv2 notification recipient, a notification view for that
recipient is automatically generated for all the MIB.
• When configuring an SNMPv1 notification recipient, the
Inform
option cannot be selected.
• If a trap and inform are defined on the same target, and an inform was sent, the trap is not sent.
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> |
0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
If the egress interface is not specified, the default interface is selected. Specifying interface
zone=0 is the same as not defining an egress interface.
Example
The following example enables SNMP traps for host 10.1.1.1 with community string
"management" using SNMPv2.
snmp-server v3-host
The snmp-server v3-host Global Configuration mode command specifies the recipient of Simple
Network Management Protocol Version 3 notifications. Use the no form of this command to
remove the specified host.
Syntax
•
snmp-server v3-host
{
ip4-address
|
ip6-address
|
hostname
}
|
hostname
}
username
[traps |
informs] {noauth | auth | priv} [udp-port
port
] [filter
filtername
] [timeout
seconds
] [retries
retries
]
•
no snmp-server v3-host {
ip4-address
|
ip6-address
|
hostname
}
username
[traps | informs]
•
ip4-address
— The host IPv4 address (the targeted recipient).
•
ip6-address
— The host IPv6 address (the targeted recipient). When the IPv6 address is a
Link Local address (IPv6Z address), the outgoing interface name must be specified. Refer to
the usage guidelines for the interface name syntax.
•
hostname
— Specifies the name of the host. (Range: 1 - 158 characters)
•
username
— Specifies the name of the user to use to generate the notification.
(Range: 1 - 25)
Console(config)# snmp-server host 10.1.1.1 management 2
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•
traps
— Indicates that SNMP traps are sent to this host.
•
informs
— Indicates that SNMP informs are sent to this host.
•
noauth
— Indicates no authentication of a packet.
•
auth
— Indicates authentication of a packet without encrypting it.
•
priv
— Indicates authentication of a packet with encryption.
•
port
— Specifies the UDP port of the host to use. If unspecified, the default UDP port
number is 162. (Range: 1 - 65535)
•
filtername
— Specifies a string that defines the filter for this host. If unspecified, nothing is
filtered. (Range: 1 - 30 characters)
•
seconds
— Specifies the number of seconds to wait for an acknowledgment before
resending informs. If unspecified, the default timeout period is 15 seconds.
(Range: 1 - 300)
•
retries
— Specifies the maximum number of times to resend an inform request, when a
response is not received for a generated message. If unspecified, the default maximum
number of retries is 3. (Range: 0 - 255)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• A user and notification view are not automatically created. Use the
snmp-server user
,
snmp-
server group
and
snmp-server view
Global Configuration mode commands to generate a user,
group and notify group, respectively.
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> |
0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
If the egress interface is not specified, the default interface is selected. Specifying interface
zone=0 is the same as not defining an egress interface.
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Example
The following example configures an SNMPv3 host.
snmp-server trap authentication
The snmp-server trap authentication Global Configuration mode command enables the device to
send SNMP traps when authentication fails. Use the no form of this command to disable SNMP
failed authentication traps.
Syntax
•
snmp-server trap authentication
•
no snmp-server trap authentication
Default Configuration
SNMP failed authentication traps are enabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example enables SNMP failed authentication traps.
snmp-server contact
The snmp-server contact Global Configuration mode command configures the system contact
(sysContact) string. To remove system contact information, use the no form of the command.
Syntax
•
snmp-server contact
text
•
no snmp-server contact
•
text
— Specifies the string that describes system contact information.
(Range: 0 - 160 characters)
console(config)# snmp-server v3-host 192.168.0.20 john noauth
Console(config)# snmp-server trap authentication
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Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Do not include spaces in the text string or place text that includes spaces inside quotation marks.
Example
The following example configures the system contact point called Dell_Technical_Support.
snmp-server location
The snmp-server location Global Configuration mode command configures the system location
string. To remove the location string.
Syntax
•
snmp-server location
text
•
no snmp-server location
•
text
— Specifies a string that describes system location information.
(Range: 0 - 160 characters)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
Do not include spaces in the text string or place text that includes spaces inside quotation marks.
Example
The following example defines the device location as New_York.
snmp-server set
The snmp-server set Global Configuration mode command defines the SNMP MIB value.
console(config)# snmp-server contact Dell_Technical_Support
Console(config)# snmp-server location New_York
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Syntax
•
snmp-server set
variable-name name1 value1
[
name2 value2 …
]
•
variable-name
— MIB variable name.
•
name value
— List of name and value pairs. In the case of scalar MIBs, only a single pair of
name values. In the case of an entry in a table, at least one pair of name and value followed
by one or more fields.
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Although the CLI can set any required configuration, there might be a situation where a SNMP
user sets a MIB variable that does not have an equivalent command. In order to generate
configuration files that support those situations, the
snmp-server set
command is used.
•
This
command is case-sensitive.
Examples
The following example configures the scalar MIB sysName with the value dell.
show snmp
The show snmp Privileged EXEC mode command displays the SNMP status.
Syntax
•
show snmp
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# snmp-server set sysName sysname dell
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Example
The following example displays the SNMP communications status.
Console# show snmp
Community-
String
Community-
Access
View name IP
address
---------- ---------- --------- -------
-
public read only user-view All
private read write Default 172.16.1.1
private su DefaultSuper 172.17.1.1
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The following table describes significant fields shown above.
Community-string Group name IP address
---------------- ---------- ----------
public user-group all
Traps are enabled.
Authentication trap is enabled.
Version 1,2 notifications
Target Address Type Community Version UDP
Port
Filter
Name
TO
Sec
Retries
-------------- ----- --------- ------- ---- ------ --- -------
192.122.173.42 Trap public 2 162 15 3
192.122.173.42
Inform
public 2 162 15 3
Version 3 notifications
Target Address Type Username
Security
Level
UDP
Port
Filter
Name
TO
Sec
Retries
-------------- ----- --------- ------- ---- ------ --- -------
192.122.173.42
Inform
Bob Priv 162 15 3
System Contact: Robert
System Location: Marketing
Field Description
Community-string Community access string to permit access to the SNMP protocol.
Community-access Type of access - read-only, read-write, super access
IP Address Management station IP Address.
Trap-Rec-Address Targeted Recipient
Trap-Rec-Community Statistics sent with the notification operation.
Version SNMP version for the sent trap 1 or 2.
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show snmp engineid
The show snmp engineID Privileged EXEC mode command displays the ID of the local Simple
Network Management Protocol (SNMP) engine.
Syntax
•
show snmp engineID
Default Configuration
This command has no default configuration.
Command Mode
• Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the SNMP engine ID.
show snmp views
The show snmp views Privileged EXEC mode command displays the configuration of views.
Syntax
•
show snmp views [
viewname
]
•
viewname
— Specifies the name of the view. (Range: 1 - 30)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show snmp engineID
Local SNMP engineID: 08009009020C0B099C075878
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Example
The following example displays the configuration of views.
show snmp groups
The show snmp groups Privileged EXEC mode command displays the configuration of groups.
Syntax
•
show snmp groups [
groupname
]
•
groupname
— Specifies the name of the group. (Range: 1 - 30)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show snmp views
Name OID Tree Type
----------- ----------------------- ---------
user-view 1.3.6.1.2.1.1 Included
user-view 1.3.6.1.2.1.1.7 Excluded
user-view 1.3.6.1.2.1.2.2.1.*.1 Included
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Example
The following example displays the configuration of views.
The following table describes significant fields shown above.
show snmp filters
The show snmp filters Privileged EXEC mode command displays the configuration of filters.
Syntax
•
show snmp filters [
filtername
]
•
filtername
— Specifies the name of the filter. (Range: 1 - 30)
Console# show snmp groups
Name Security Views
Model Level Read Write Notify
-------------- ----- ----- ------- ------- -------
user-group V3 priv Default "" ""
managers-group V3 priv Default Default ""
managers-group V3 priv Default "" ""
Field Description
Name Name of the group.
Security Model SNMP model in use (v1, v2 or v3).
Security Level Authentication of a packet with encryption. Applicable only to the
SNMP v3 security model.
Views Read Name of the view that enables only viewing the contents of the
agent. If unspecified, all objects except the community-table and
SNMPv3 user and access tables are available.
Write Name of the view that enables entering data and managing the
contents of the agent.
Notify Name of the view that enables specifying an inform or a trap.
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the configuration of filters.
show snmp users
The show snmp users Privileged EXEC mode command displays the configuration of users.
Syntax
•
show snmp users [
username
]
•
username
— Specifies the name of the user. (Range: 1 - 30)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show snmp filters
Name OID Tree Type
----------- ----------------------- ---------
user-filter 1.3.6.1.2.1.1 Included
user-filter 1.3.6.1.2.1.1.7 Excluded
user-filter 1.3.6.1.2.1.2.2.1.*.1 Included
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Example
The following example displays the configuration of users.
Console# show snmp users
Name Group name Auth Method Remote
------ ------------ --------- -------------------------
John user-group md5
John user-group md5 08009009020C0B099C075879
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Spanning-Tree Commands 371
28
Spanning-Tree Commands
spanning-tree
The spanning-tree Global Configuration mode command enables spanning-tree functionality. Use
the no form of this command to disable spanning-tree functionality.
Syntax
• spanning-tree
• no spanning-tree
Default Configuration
Spanning-tree is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example enables spanning-tree functionality.
spanning-tree mode
The spanning-tree mode Global Configuration mode command configures the spanning-tree
protocol. Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree mode
{
stp
|
rstp
|
mstp
}
• no spanning-tree mode
•
stp
— STP is the Spanning Tree operative mode.
•
rstp
— RSTP is the Spanning Tree operative mode.
•
mstp
— MSTP is enabled.
Console(config)# spanning-tree
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Default Configuration
STP is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• In RSTP mode, the device uses STP when the neighbor device uses STP.
• In MSTP mode, the device uses RSTP when the neighbor device uses RSTP and uses STP when
the neighbor device uses STP.
Example
The following example configures the spanning-tree protocol to RSTP.
spanning-tree forward-time
The spanning-tree forward-time Global Configuration mode command configures the spanning-
tree bridge forward time, which is the amount of time a port remains in the listening and learning
states before entering the forwarding state. Use the no form of this command to return to the default
configuration.
Syntax
•
spanning-tree forward-time
seconds
• no spanning-tree forward-time
•
seconds
— Time in seconds. (Range: 4 - 30)
Default Configuration
The default forwarding time for the IEEE Spanning Tree Protocol (STP) is 5 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• When configuring the forwarding time, the following relationship should be kept:
– 2*(Forward-Time - 1) >= Max-Age
console(config)# spanning-tree mode rstp
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Example
The following example configures the Spanning Tree bridge forwarding time to 25 seconds.
spanning-tree hello-time
The spanning-tree hello-time Global Configuration mode command configures the Spanning Tree
bridge hello time, which is how often the device Broadcasts Spanning Tree BPDUs to other
devices. Use the no form of this command to return to the default configuration.
Syntax
•s
panning-tree hello-time
seconds
•
no spanning-tree
hello-time
•
seconds
— Time in seconds. (Range: 1 - 10)
Default Configuration
The default hello time for IEEE Spanning Tree Protocol (STP) is 2 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• When configuring the hello time, the following relationship should be kept:
– Max-Age >= 2*(Hello-Time + 1)
Example
The following example configures Spanning Tree bridge hello time to 5 seconds.
spanning-tree max-age
The spanning-tree max-age Global Configuration mode command configures the Spanning Tree
bridge maximum age. Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree max-age
seconds
• no spanning-tree max-age
•
seconds
— Time in seconds. (Range: 6 - 40)
Console(config)# spanning-tree forward-time 25
Console(config)# spanning-tree hello-time 5
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Default Configuration
The default maximum age for IEEE Spanning Tree Protocol (STP) is 20 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• When configuring the maximum age, the following relationships should be kept:
– 2*(Forward-Time - 1) >= Max-Age
– Max-Age >= 2*(Hello-Time + 1)
Example
The following example configures the Spanning Tree bridge maximum-age to 10 seconds.
spanning-tree priority
The spanning-tree priority Global Configuration mode command configures the Spanning Tree
priority of the device. The priority value is used to determine which bridge is elected as the root
bridge. Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree priority
priority
• no spanning-tree priority
•
priority
— Priority of the bridge. (Range: 0 - 61440 in steps of 4096)
Default Configuration
The default bridge priority for IEEE Spanning Tree Protocol (STP) is 32768.
Command Mode
Global Configuration mode.
User Guidelines
• The bridge with the lowest priority is elected as the root bridge.
Example
The following example configures Spanning Tree priority to 12288.
Console(config)# spanning-tree max-age 10
Console(config)# spanning-tree priority 12288
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spanning-tree disable
The spanning-tree disable Interface Configuration mode command disables Spanning Tree on a
specific port. Use the no form of this command to enable Spanning Tree on a port.
Syntax
• spanning-tree disable
• no spanning-tree disable
Default Configuration
Spanning tree is enabled on all ports.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example disables spanning-tree on Ethernet port 1/e5.
spanning-tree cost
The spanning-tree cost Interface Configuration mode command configures the Spanning Tree
path cost for a port. Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree cost
cost
• no spanning-tree cost
•
cost
— Path cost of the port (Range: 1 - 200,000,000)
Console(config)# interface ethernet 1/e5
Console(config-if)# spanning-tree disable
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Default Configuration
Default path cost is determined by port speed and path cost method (long or short) as shown
below:
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• The path cost method is configured using the
spanning-tree pathcost method
Global
Configuration mode command.
Example
The following example configures the spanning-tree cost on Ethernet port 1/e15 to 35000.
spanning-tree port-priority
The spanning-tree port-priority Interface Configuration mode command configures port priority.
Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree port-priority
priority
• no spanning-tree port-priority
•
priority
— The priority of the port. (Range: 0 - 240 in multiples of 16)
Default Configuration
The default port priority for IEEE Spanning TreeProtocol (STP) is 128.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
Interface Long Short
Port-channel 20,000 4
Gigabit Ethernet (1000 Mbps) 20,000 4
Fast Ethernet (100 Mbps) 200,000 19
Ethernet (10 Mbps) 2,000,000 100
Console(config)# interface ethernet 1/e15
Console(config-if)# spanning-tree cost 35000
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User Guidelines
There are no user guidelines for this command.
Example
The following example configures the spanning priority on Ethernet port 1/e15 to 96.
spanning-tree portfast
The spanning-tree portfast Interface Configuration mode command enables PortFast mode. In
PortFast mode, the interface is immediately put into the forwarding state upon linkup without
waiting for the standard forward time delay. Use the no form of this command to disable PortFast
mode.
Syntax
• spanning-tree portfast [auto]
• no spanning-tree portfast
• auto — Specifies that the software waits for 3 seconds (With no BPDUs received on the
interface) before putting the interface into the PortFast mode.
Default Configuration
PortFast mode is disabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• This feature should be used only with interfaces connected to end stations. Otherwise, an
accidental topology loop could cause a data packet loop and disrupt device and network
operations.
Example
The following example enables PortFast on Ethernet port 1/e15.
Console(config)# interface ethernet 1/e15
Console(config-if)# spanning-tree port-priority 96
Console(config)# interface ethernet 1/e15
Console(config-if)# spanning-tree portfast
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spanning-tree link-type
The spanning-tree link-type Interface Configuration mode command overrides the default link-
type setting determined by the duplex mode of the port and enables Rapid Spanning Tree Protocol
(RSTP) transitions to the forwarding state. Use the no form of this command to return to the default
configuration.
Syntax
•
spanning-tree link-type
{
point-to-point
|
shared
}
• no spanning-tree link-type
•
point-to-point
— Indicates that the port link type is point-to-point.
•
shared
— Indicates that the port link type is shared.
Default Configuration
The device derives the port link type from the duplex mode. A full-duplex port is considered a
point-to-point link and a half-duplex port is considered a shared link.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables shared spanning-tree on Ethernet port 1/e5.
spanning-tree pathcost method
The spanning-tree pathcost method Global Configuration mode command sets the default path
cost method. Use the no form of this command to return to the default configuration.
Syntax
•
spanning-tree pathcost method
{
long
|
short
}
•
no spanning-tree pathcost method
•
long —
Specifies port path costs with a range of 1-200,000,000
.
•
short
— Specifies port path costs with a range of 0-65,535.
Console(config)# interface ethernet 1/e15
Console(config-if)# spanning-tree link-type shared
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Default Configuration
Short path cost method.
Command Mode
Global Configuration mode.
User Guidelines
• This command applies to all Spanning Tree instances on the device.
• The cost is set using the
spanning-tree cost
command.
Example
The following example sets the default path cost method to long.
spanning-tree bpdu
The spanning-tree bpdu Global Configuration mode command defines BPDU handling when the
Spanning Tree is disabled globally or on a single interface. Use the no form of this command to
return to the default configuration.
Syntax
•
spanning-tree bpdu
{
filtering
|
flooding
}
• no spanning-tree bpdu
•
filtering
— Filter BPDU packets when the Spanning Tree is disabled on an interface.
•
flooding
— Flood BPDU packets when the Spanning Tree is disabled on an interface.
Default Configuration
The default setting is flooding.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example defines BPDU packet flooding when the spanning-tree is disabled on an
interface.
Console(config)# spanning-tree pathcost method long
Console(config)# spanning-tree bpdu flooding
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clear spanning-tree detected-protocols
The clear spanning-tree detected-protocols Privileged EXEC mode command enables the user to
set the switches back to RSTP mode without rebooting the device.
Syntax
•
clear spanning-tree detected-protocols
[
ethernet
interface
|
port-channel
port-channel-
number
]
•
interface
— A valid Ethernet port.
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• This feature should be used only when working in RSTP or MSTP mode.
Example
The following example restarts the protocol migration process on Ethernet port 1/e11.
spanning-tree mst priority
The spanning-tree mst priority Global Configuration mode command configures the device
priority for the specified spanning-tree instance. Use the no form of this command to return to the
default configuration.
Syntax
•
spanning-tree mst
instance-id
priority
priority
•
no spanning-tree mst
instance-id
priority
• instance-id —
ID of the spanning -tree instance. (Range: 0 - 15)
•
priority —
Device priority for the specified spanning-tree instance. (Range: 0 - 61440 in
multiples of 4096)
Default Configuration
The default bridge priority for IEEE Spanning Tree Protocol (STP) is 32768.
Console# clear spanning-tree detected-protocols ethernet 1/e11
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Command Mode
Global Configuration mode.
User Guidelines
• The device with the lowest priority is selected as the root of the Spanning Tree.
Example
The following example configures the Spanning Tree priority of instance 1 to 4096.
spanning-tree mst max-hops
The spanning-tree mst max-hops Global Configuration mode command configures the number of
hops in an MST region before the BDPU is discarded and the port information is aged out. Use the
no form of this command to return to the default configuration.
Syntax
•
spanning-tree mst max-hops
hop-count
• no spanning-tree mst max-hops
• hop-count —
Number of hops in an MST region before the BDPU is discarded .
(Range: 1 - 40)
Default Configuration
The default number of hops is 20.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the maximum number of hops that a packet travels in an MST
region before it is discarded to 10.
Console(config)# spanning-tree mst 1 priority 4096
Console (config) # spanning-tree mst max-hops 10
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spanning-tree mst port-priority
The spanning-tree mst port-priority Interface Configuration mode command configures port
priority for the specified MST instance. Use the no form of this command to return to the default
configuration.
Syntax
•
spanning-tree mst
instance-id
port-priority
priority
•
no spanning-tree mst
instance-id
port-priority
• instance-ID —
ID of the Spanning Tree instance. (Range: 1 - 15)
•
priority —
The port priority. (Range: 0 - 240 in multiples of 16)
Default Configuration
The default port priority for IEEE Multiple Spanning Tree Protocol (MSTP) is 128.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the port priority of port 1/e1 for instance 1 to 142.
spanning-tree mst cost
The spanning-tree mst cost Interface Configuration mode command configures the path cost for
multiple Spanning Tree (MST) calculations. If a loop occurs, the Spanning Tree considers path cost
when selecting an interface to put in the forwarding state. Use the no form of this command to
return to the default configuration.
Syntax
•
spanning-tree mst
instance-id
cost
cost
•
no spanning-tree mst
instance-id
cost
• instance-ID —
ID of the spanning -tree instance. (Range: 1 - 15)
•
cost —
The port path cost. (Range: 1 - 200,000,000)
Console(config)# interface ethernet
1/e1
Console(config-if)# spanning-tree mst 1 port-priority 142
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Default Configuration
Default path cost is determined by port speed and path cost method (long or short) as shown
below:
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the MSTP instance 1 path cost for Ethernet port 1/e9 to 4.
spanning-tree mst configuration
The spanning-tree mst configuration Global Configuration mode command enables configuring
an MST region by entering the Multiple Spanning Tree (MST) mode.
Syntax
• spanning-tree mst configuration
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
All devices in an MST region must have the same VLAN mapping, configuration revision
number and name.
Interface Long Short
Port-channel 20,000 4
Gigabit Ethernet (1000 Mbps) 20,000 4
Fast Ethernet (100 Mbps) 200,000 19
Ethernet (10 Mbps) 2,000,000 100
Console(config) # interface ethernet 1/e9
Console(config-if) # spanning-tree mst 1 cost 4
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Example
The following example configures an MST region.
Console(config)# spanning-tree mst configuration
Console(config-mst) # instance 1 add vlan 10-20
Console(config-mst) # name region1
Console(config-mst) # revision 1
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instance (mst)
The instance MST Configuration mode command maps VLANS to an MST instance.
Syntax
•
instance
instance-id
{add | remove} vlan
vlan-range
• instance-ID —
ID of the MST instance. (Range: 1 - 15)
•
vlan-range —
VLANs to be added to or removed from the specified MST instance. To
specify a range of VLANs, use a hyphen. To specify a series of VLANs, use a comma.
(Range: 1 - 4094)
Default Configuration
VLANs are mapped to the common and internal Spanning Tree (CIST) instance (instance 0).
Command Mode
MST Configuration mode.
User Guidelines
All VLANs that are not explicitly mapped to an MST instance are mapped to the common and
internal Spanning Tree (CIST) instance (instance 0) and cannot be unmapped from the CIST.
For two or more devices to be in the same MST region, they must have the same VLAN mapping,
the same configuration revision number, and the same name.
Example
The following example maps VLANs 10-20 to MST instance 1.
Console(config)# spanning-tree mst configuration
Console(config-mst)# instance 1 add vlan 10-20
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name (mst)
The name MST Configuration mode command defines the MST region name. Use the no form of
this command to return to the default setting.
Syntax
•
name
string
•no name
• string —
MST configuration name. Case-sensitive. (Range: 1 - 32 characters)
Default Configuration
The default name is a bridge ID.
Command Mode
MST Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example defines the configuration name as region1.
revision (mst)
The revision MST configuration command defines the MST region revision number. Use the no
form of this command to return to the default configuration.
Syntax
•
revision
value
• no revision
•value —
Configuration revision number. (Range: 0 - 65535)
Default Configuration
The default configuration revision number is 0.
Command Mode
MST Configuration mode.
Console(config)# spanning-tree mst configuration
Console(config-mst)# name region 1
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User Guidelines
There are no user guidelines for this command.
Example
The following example sets the configuration revision to 1.
show (mst)
The show MST Configuration mode command displays the current or pending MST region
configuration.
Syntax
• show {current | pending}
•
current
—
Indicates the current region configuration.
•
pending
—
Indicates the pending region configuration.
Default Configuration
This command has no default configuration.
Command Mode
MST Configuration mode.
User Guidelines
The pending MST region configuration takes effect only after exiting the MST configuration
mode.
Console(config)# spanning-tree mst configuration
Console(config-mst)# revision 1
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Example
The following example displays a pending MST region configuration.
exit (mst)
The exit MST Configuration mode command exits the MST configuration mode and applies all
configuration changes.
Syntax
•exit
Default Configuration
This command has no default configuration.
Command Mode
MST Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example exits the MST configuration mode and saves changes.
Console(config-mst)# show pending
Pending MST configuration
Name: Region1
Revision: 1
Instance Vlans Mapped State
-------- ------------ -----
0 1-9,21-4094 Enabled
1 10-20 Enabled
Console(config)# spanning-tree mst configuration
Console(config-mst)# exit
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abort (mst)
The abort MST Configuration mode command exits the MST configuration mode without
applying the configuration changes.
Syntax
•abort
Default Configuration
This command has no default configuration.
Command Mode
MST Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example exits the MST configuration mode without saving changes.
show spanning-tree
The show spanning-tree Privileged EXEC mode command displays spanning-tree configuration.
Syntax
•
show spanning-tree [ethernet
interface -number
|
port-channel
port-channel-number
]
[
instance
instance-id]
•
show spanning-tree
[
detail
] [
active
|
blockedports
] [
instance
instance-id]
• show spanning-tree mst-configuration
•
interface -number
— A valid Ethernet port.
•
port-channel-number
— A valid port channel number.
•
detail
— Indicates detailed information.
•
active
— Indicates active ports only.
•
blockedports
— Indicates blocked ports only.
•
mst-configuration
— Indicates the MST configuration identifier.
•
instance-id
— Specifies ID of the Spanning Tree instance.
Console(config)# spanning-tree mst configuration
Console(config-mst)# abort
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Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays spanning-tree information.
Console# show spanning-tree
Spanning tree enabled mode RSTP
Default port cost method: long
Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID
Priority 36864
Address 00:02:4b:29:7a:00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e1 Enabled 128.1 20000 FWD Root No P2p (RSTP)
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1/e2 Enabled 128.2 20000 FWD Desg No Shared
(STP)
1/e3 Disabled 128.3 20000 - - - -
1/e4 Enabled 128.4 20000 BLK ALTN No Shared
(STP)
1/e5 Enabled 128.5 20000 DIS - - -
Console# show spanning-tree
Spanning tree enabled mode RSTP
Default port cost method: long
Root ID Priority 36864
Address 00:02:4b:29:7a:00
This switch is the root.
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e1 Enabled 128.1 20000 FWD Desg No P2p (RSTP)
1/e2 Enabled 128.2 20000 FWD Desg No Shared
(STP)
1/e3 Disabled 128.3 20000 - - - -
1/e4 Enabled 128.4 20000 FWD Desg No Shared
(STP)
1/e5 Enabled 128.5 20000 DIS - - -
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Console# show spanning-tree
Spanning tree disabled (BPDU filtering) mode RSTP
Default port cost method: long
Root ID Priority N/A
Address N/A
Path
Cost
N/A
Root
Port
N/A
Hello Time N/A Max Age N/A Forward Delay N/A
Bridge
ID
Priority 36864
Address 00:02:4b:29:7a:00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----
1/e1 Enabled 128.1 20000 - - - -
1/e2 Enabled 128.2 20000 - - - -
1/e3 Disabled 128.3 20000 - - - -
1/e4 Enabled 128.4 20000 - - - -
1/e5 Enabled 128.5 20000 - - - -
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Console# show spanning-tree active
Spanning tree enabled mode RSTP
Default port cost method: long
Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID
Priority 36864
Address 00:02:4b:29:7a:00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e1 Enabled 128.1 20000 FWD Root No P2p (RSTP)
1/e2 Enabled 128.2 20000 FWD Desg No Shared
(STP)
1/e4 Enabled 128.4 20000 BLK ALTN No Shared
(STP)
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Console# show spanning-tree blockedports
Spanning tree enabled mode RSTP
Default port cost method: long
Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID
Priority 36864
Address 00:02:4b:29:7a:00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e4 Enabled 128.4 20000 BLK ALTN No Shared
(STP)
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Console# show spanning-tree detail
Spanning tree enabled mode RSTP
Default port cost method: long
Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge
ID
Priority 36864
Address 00:02:4b:29:7a:00
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Number of topology changes 2 last change occurred 2d18h ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Port 1 (1/e1) enabled
State: Forwarding Role: Root
Port id: 128.1 Port cost: 20000
Type: P2p (configured: auto) RSTP Port Fast: No (configured:no)
Designated bridge Priority: 32768 Address: 00:01:42:97:e0:00
Designated port id: 128.25 Designated path cost: 0
Number of transitions to forwarding state: 1
BPDU: sent 2, received 120638
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Port 2 (1/e2) enabled
State: Forwarding Role: Designated
Port id: 128.2 Port cost: 20000
Type: Shared (configured: auto) STP Port Fast: No (configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.2 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Port 3 (1/e3) disabled
State: N/A Role: N/A
Port id: 128.3 Port cost: 20000
Type: N/A (configured: auto) Port Fast: N/A (configured:no)
Designated bridge Priority: N/A Address: N/A
Designated port id: N/A Designated path cost: N/A
Number of transitions to forwarding state: N/A
BPDU: sent N/A, received N/A
Port 4 (1/e4) enabled
State: Blocking Role: Alternate
Port id: 128.4 Port cost: 20000
Type: Shared (configured:auto) STP Port Fast: No (configured:no)
Designated bridge Priority: 28672 Address: 00:30:94:41:62:c8
Designated port id: 128.25 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 120638
Port 5 (1/e5) enabled
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State: Disabled Role: N/A
Port id: 128.5 Port cost: 20000
Type: N/A (configured: auto) Port Fast: N/A (configured:no)
Designated bridge Priority: N/A Address: N/A
Designated port id: N/A Designated path cost: N/A
Number of transitions to forwarding state: N/A
BPDU: sent N/A, received N/A
Console# show spanning-tree ethernet 1/e1
Port 1 (1/e1) enabled
State: Forwarding Role: Root
Port id: 128.1 Port cost: 20000
Type: P2p (configured: auto) RSTP Port Fast: No (configured:no)
Designated bridge Priority: 32768 Address: 00:01:42:97:e0:00
Designated port id: 128.25 Designated path cost: 0
Number of transitions to forwarding state: 1
BPDU: sent 2, received 120638
Console# show spanning-tree mst-configuration
Name: Region1
Revision: 1
Instance Vlans mapped State
-------- ------------ -------
0 1-9, 21-4094 Enabled
1 10-20 Enabled
398 Spanning-Tree Commands
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Console# show spanning-tree
Spanning tree enabled mode MSTP
Default port cost method: long
###### MST 0 Vlans Mapped: 1-9, 21-4094
CST Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
IST Master ID Priority 32768
Address 00:02:4b:29:7a:0
0
This switch is the IST master.
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Max hops 20
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e1 Enabled 128.1 20000 FWD Root No P2p Bound
(RSTP)
1/e2 Enabled 128.2 20000 FWD Desg No Shared
Bound (STP)
1/e3 Enabled 128.3 20000 FWD Desg No P2p
1/e4 Enabled 128.4 20000 FWD Desg No P2p
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###### MST 1 Vlans Mapped: 10-20
CST Root ID Priority 24576
Address 00:02:4b:29:89:76
Path
Cost
20000
Root
Port
4 (1/e4)
Rem hops 19
Bridge ID Priority 32768
Address 00:02:4b:29:7a:0
0
Interfaces
Name State Prio.Nbr Cost Sts Role PortFast Type
---- ------- -------- ----- --- ---- -------- ----------
1/e1 Enabled 128.1 20000 FWD Boun No P2p Bound
(RSTP)
1/e2 Enabled 128.2 20000 FWD Boun No Shared
Bound (STP)
1/e3 Enabled 128.3 20000 BLK Altn No P2p
1/e4 Enabled 128.4 20000 FWD Desg No P2p
Console# show spanning-tree detail
Spanning tree enabled mode MSTP
Default port cost method: long
###### MST 0 Vlans Mapped: 1-9, 21-4094
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CST Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
IST Master ID Priority 32768
Address 00:02:4b:29:7a:0
0
This switch is the IST master.
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Max hops 20
Number of topology changes 2 last change occurred 2d18h
ago
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Port 1 (1/e1) enabled
State: Forwarding Role: Root
Port id: 128.1 Port cost: 20000
Type: P2p (configured: auto) Boundary RSTP Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:01:42:97:e0:00
Designated port id: 128.25 Designated path cost: 0
Number of transitions to forwarding state: 1
BPDU: sent 2, received 120638
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Port 2 (1/e2) enabled
State: Forwarding Role: Designated
Port id: 128.2 Port cost: 20000
Type: Shared (configured: auto) Boundary STP Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.2 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Port 3 (1/e3) enabled
State: Forwarding Role: Designated
Port id: 128.3 Port cost: 20000
Type: Shared (configured: auto) Internal Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.3 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Port 4 (1/e4) enabled
State: Forwarding Role: Designated
Port id: 128.4 Port cost: 20000
Type: Shared (configured: auto) Internal Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.2 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
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###### MST 1 Vlans Mapped: 10-20
Root ID Priority 24576
Address 00:02:4b:29:89:76
Path
Cost
20000
Port
Cost
4 (1/e4)
Rem hops 19
Bridge ID Priority 32768
Address 00:02:4b:29:7a:00
Number of topology changes 2 last change occurred 1d9h
ago
Times: hold 1, topology change 2, notification 2
hello 2, max age 20, forward delay 15
Port 1 (1/e1) enabled
State: Forwarding Role: Boundary
Port id: 128.1 Port cost: 20000
Type: P2p (configured: auto) Boundary RSTP Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.1 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 120638
Port 2 (1/e2) enabled
State: Forwarding Role: Designated
Port id: 128.2 Port cost: 20000
Type: Shared (configured: auto) Boundary STP Port Fast: No
(configured:no)
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Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.2 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Port 3 (1/e3) disabled
State: Blocking Role: Alternate
Port id: 128.3 Port cost: 20000
Type: Shared (configured: auto) Internal Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:1a:19
Designated port id: 128.78 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Port 4 (1/e4) enabled
State: Forwarding Role: Designated
Port id: 128.4 Port cost: 20000
Type: Shared (configured: auto) Internal Port Fast: No
(configured:no)
Designated bridge Priority: 32768 Address: 00:02:4b:29:7a:00
Designated port id: 128.2 Designated path cost: 20000
Number of transitions to forwarding state: 1
BPDU: sent 2, received 170638
Console# show spanning-tree
Spanning tree enabled mode MSTP
Default port cost method: long
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###### MST 0 Vlans Mapped: 1-9, 21-4094
CST Root ID Priority 32768
Address 00:01:42:97:e0:00
Path
Cost
20000
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
IST Master ID Priority 32768
Address 00:02:4b:19:7a:0
0
Path
Cost
10000
Rem hops 19
Bridge
ID
Priority 32768
Address 00:02:4b:29:7a:0
0
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Max hops 20
Console# show spanning-tree
Spanning tree enabled mode MSTP
Default port cost method: long
###### MST 0 Vlans Mapped: 1-9, 21-4094
CST Root ID Priority 32768
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spanning-tree guard root
Use the
spanning-tree guard root
interface configuration command to enable root guard on all the
Spanning Tree instances on that interface. Root guard restricts the interface to be the root port for the
switch. Use the
no
form of this command to disable root guard on the interface.
Syntax
• spanning-tree guard root
• no spanning-tree guard root
Default Configuration
Root guard is disabled.
Command Mode
Interface configuration (Ethernet, port-channel).
User Guidelines
Root guard can be enabled when the switch works in STP, RSTP and MSTP.
When root guard is enabled, if spanning-tree calculations cause a port to be selected as the root port,
the port transitions to the alternate state.
Example
The following example enable root guard on port e8.
Address 00:01:42:97:e0:00
This switch is root for CST and IST master.
Root
Port
1 (1/e1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Max hops 20
Console(config)# interface ethernet 1/e8
Console(config-if)# spanning-tree guard root
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SSH Commands 407
29
SSH Commands
ip ssh port
The ip ssh port Global Configuration mode command specifies the port to be used by the SSH
server. Use the no form of this command to return to the default configuration.
Syntax
•
ip ssh port
port-number
•
no ip ssh port
•
port-number
— Port number for use by the SSH server. (Range: 1 - 65535)
Default Configuration
The default port number is 22.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example specifies the port to be used by the SSH server as 8080.
ip ssh server
The ip ssh server Global Configuration mode command enables the device to be configured from a
SSH server. Use the no form of this command to disable this function.
Syntax
•
ip ssh server
•
no ip ssh server
Console(config)# ip ssh port 8080
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Default Configuration
Device configuration from a SSH server is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• If encryption keys are not generated, the SSH server is in standby until the keys are generated. To
generate SSH server keys, use the
crypto key generate dsa
, and
crypto key generate rsa
Global Configuration mode commands.
Example
The following example enables configuring the device from a SSH server.
crypto key generate dsa
The crypto key generate dsa Global Configuration mode command generates DSA key pairs.
Syntax
•
crypto key generate dsa
Default Configuration
DSA key pairs do not exist.
Command Mode
Global Configuration mode.
User Guidelines
• DSA keys are generated in pairs: one public DSA key and one private DSA key. If the device
already has DSA keys, a warning and prompt to replace the existing keys with new keys are
displayed.
• This command is not saved in the device configuration; however, the keys generated by this
command are saved in the private configuration, which is never displayed to the user or backed
up on another device.
• DSA keys are saved to the backup master.
• This command may take a considerable period of time to execute.
Console(config)# ip ssh server
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Example
The following example generates DSA key pairs.
crypto key generate rsa
The crypto key generate rsa Global Configuration mode command generates RSA key pairs.
Syntax
•
crypto key generate rsa
Default Configuration
RSA key pairs do not exist.
Command Mode
Global Configuration mode.
User Guidelines
• RSA keys are generated in pairs: one public RSA key and one private RSA key. If the device
already has RSA keys, a warning and prompt to replace the existing keys with new keys are
displayed.
• This command is not saved in the device configuration; however, the keys generated by this
command are saved in the private configuration which is never displayed to the user or backed
up on another device.
• RSA keys are saved to the backup master.
• This command may take a considerable period of time to execute.
Example
The following example generates RSA key pairs.
ip ssh pubkey-auth
The ip ssh pubkey-auth Global Configuration mode command enables public key authentication
for incoming SSH sessions. Use the no form of this command to disable this function.
Console(config)# crypto key generate dsa
Console(config)# crypto key generate rsa
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Syntax
•
ip ssh pubkey-auth
•
no ip ssh pubkey-auth
Default Configuration
Public Key authentication for incoming SSH sessions is disabled.
Command Mode
Global Configuration mode.
User Guidelines
AAA authentication is independent
Example
The following example enables public key authentication for incoming SSH sessions.
crypto key pubkey-chain ssh
The crypto key pubkey-chain ssh Global Configuration mode command enters the SSH Public
Key-chain Configuration mode. The mode is used to manually specify other device public keys
such as SSH client public keys.
Syntax
•
crypto key pubkey-chain ssh
Default Configuration
No keys are specified.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# ip ssh pubkey-auth
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Example
The following example enters the SSH Public Key-chain Configuration mode and manually
configures the RSA key pair for SSH public key-chain bob.
user-key
The user-key SSH Public Key-string Configuration mode command specifies which SSH public
key is manually configured. Use the no form of this command to remove an SSH public key.
Syntax
•
user-key
username
{
rsa
|
dsa
}
•
no user-key
username
•
username
— Specifies the username of the remote SSH client. (Range: 1-48 characters)
•
rsa
— Indicates the RSA key pair.
•
dsa
— Indicates the DSA key pair.
Console(config)# crypto key pubkey-chain ssh
Console(config-pubkey-chain)# user-key bob
Console(config-pubkey-key)# key-string rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCvTnRwPWl
Al4kpqIw9GBRonZQZxjHKcqKL6rMlQ+
ZNXfZSkvHG+QusIZ/76ILmFT34v7u7ChFAE+
Vu4GRfpSwoQUvV35LqJJk67IOU/zfwOl1g
kTwml75QR9gHujS6KwGN2QWXgh3ub8gDjTSq
muSn/Wd05iDX2IExQWu08licglk02LYciz
+Z4TrEU/9FJxwPiVQOjc+KBXuR0juNg5nFYsY
0ZCk0N/W9a/tnkm1shRE7Di71+w3fNiOA
6w9o44t6+AINEICBCCA4YcF6zMzaT1wefWwX6f+
Rmt5nhhqdAtN/4oJfce166DqVX1gWmN
zNR4DYDvSzg0lDnwCAC8Qh
Fingerprint: a4:16:46:23:5a:8d:1d:b5:37:59:eb:44:13:b9:33:e9
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Default Configuration
No SSH public keys exist.
Command Mode
SSH Public Key-string Configuration mode.
User Guidelines
Follow this command with the
key-string
SSH
Public Key-String Configuration mode command
to specify the key.
Example
The following example enables manually configuring an SSH public key for SSH public key-chain
bob.
key-string
The key-string SSH Public Key-string Configuration mode command manually specifies an SSH
public key.
Syntax
•
key-string
•
key-string row
key-string
•
row —
Indicates the SSH public key row by row.
•
key-string
—
Specifies the key in UU-encoded DER format; UU-encoded DER format is the
same format in the authorized_keys file used by OpenSSH.
Default Configuration
No keys exist.
Command Mode
SSH Public Key-string Configuration mode.
Console(config)# crypto key pubkey-chain ssh
Console(config-pubkey-chain)# user-key bob rsa
Console(config-pubkey-key)# key-string row
AAAAB3NzaC1yc2EAAAADAQABAAABAQCvTnRwPWl
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User Guidelines
•Use the
key-string
SSH Public Key-string Configuration mode command to specify which SSH
public key is to be interactively configured next. To complete the command, you must enter a
row with no characters.
•Use the
key-string row
SSH Public Key-string Configuration mode command to specify the
SSH public key row by row. Each row must begin with a
key-string row
command. This
command is useful for configuration files.
Example
The following example enters public key strings for SSH public key client bob.
Console(config)# crypto key pubkey-chain ssh
Console(config-pubkey-chain)# user-key bob rsa
Console(config-pubkey-key)# key-string
AAAAB3NzaC1yc2EAAAADAQABAAABAQCvTnRwPWl
Al4kpqIw9GBRonZQZxjHKcqKL6rMlQ+
ZNXfZSkvHG+QusIZ/76ILmFT34v7u7ChFAE+
Vu4GRfpSwoQUvV35LqJJk67IOU/zfwOl1g
kTwml75QR9gHujS6KwGN2QWXgh3ub8gDjTSq
muSn/Wd05iDX2IExQWu08licglk02LYciz
+Z4TrEU/9FJxwPiVQOjc+KBXuR0juNg5nFYsY
0ZCk0N/W9a/tnkm1shRE7Di71+w3fNiOA
6w9o44t6+AINEICBCCA4YcF6zMzaT1wefWwX6f+
Rmt5nhhqdAtN/4oJfce166DqVX1gWmN
zNR4DYDvSzg0lDnwCAC8Qh
Fingerprint: a4:16:46:23:5a:8d:1d:b5:37:59:eb:44:13:b9:33:e9
Console(config)# crypto key pubkey-chain ssh
Console(config-pubkey-chain)# user-key bob rsa
Console(config-pubkey-key)# key-string row AAAAB3Nza
Console(config-pubkey-key)# key-string row C1yc2
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show ip ssh
The show ip ssh Privileged EXEC mode command displays the SSH server configuration.
Syntax
•
show ip ssh
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the SSH server configuration.
The following table describes significant fields shown above:
Console# show ip ssh
SSH server enabled. Port: 22
RSA key was generated.
DSA (DSS) key was generated.
SSH Public Key Authentication is enabled.
Active incoming sessions:
IP address SSH
username
Version Cipher Auth Code
---------- ---------- --------- ------- ----------
172.16.0.1 John Brown 2.0 3 DES HMAC-SHA1
Field Description
IP address Client address
SSH username User name
Version SSH version number
Cipher Encryption type (3DES, Blowfish, RC4)
Auth Code Authentication Code (HMAC-MD5, HMAC-SHA1)
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show crypto key mypubkey
The show crypto key mypubkey Privileged EXEC mode command displays the SSH public keys
on the device.
Syntax
•
show crypto key mypubkey
[
rsa
|
dsa
]
•
rsa
— Indicates the RSA key.
•
dsa
— Indicates the DSA key.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the SSH public RSA keys on the device.
Console# show crypto key mypubkey rsa
RSA key data:
005C300D 06092A86 4886F70D 01010105 00034B00 30480241 00C5E23B
55D6AB22
04AEF1BA A54028A6 9ACC01C5 129D99E4 64CAB820 847EDAD9 DF0B4E4C
73A05DD2
BD62A8A9 FA603DD2 E2A8A6F8 98F76E28 D58AD221 B583D7A4 71020301
87685768
Fingerprint(Hex): 77:C7:19:85:98:19:27:96:C9:CC:83:C5:78:89:F8:86
Fingerprint(Bubble Babble): yteriuwt jgkljhglk yewiury hdskjfryt
gfhkjglk
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show crypto key pubkey-chain ssh
The show crypto key pubkey-chain ssh Privileged EXEC mode command displays SSH public
keys stored on the device.
Syntax
•
show crypto key pubkey-chain ssh
[
username
username
] [
fingerprint
{
bubble-babble
|
hex
}]
•
username
— Specifies the remote SSH client username.
•
bubble-babble
— Fingerprint in Bubble Babble format.
•
hex
— Fingerprint in Hex format.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example displays SSH public keys stored on the device.
Console# show crypto key pubkey-chain ssh
Username Fingerprint
-------- -----------------------------------------------
bob 9A:CC:01:C5:78:39:27:86:79:CC:23:C5:98:59:F1:86
john 98:F7:6E:28:F2:79:87:C8:18:F8:88:CC:F8:89:87:C8
Console# show crypto key pubkey-chain ssh username bob
Username: bob
Key: 005C300D 06092A86 4886F70D 01010105 00034B00 30480241
00C5E23B 55D6AB22 04AEF1BA A54028A6 9ACC01C5 129D99E4
Fingerprint: 9A:CC:01:C5:78:39:27:86:79:CC:23:C5:98:59:F1:86
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Syslog Commands 417
30
Syslog Commands
logging on
The logging on Global Configuration mode command controls error message logging. This
command sends debug or error messages to a logging process, which logs messages to designated
locations asynchronously to the process that generated the messages. Use the no form of this
command to disable the logging process.
Syntax
•
logging on
•
no logging on
Default Configuration
Logging is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• The logging process controls the distribution of logging messages at various destinations, such as
the logging buffer, logging file or syslog server. Logging on and off at these destinations can be
individually configured using the
logging buffered
,
logging file
, and
logging
Global
Configuration mode commands. However, if the
logging on
command is disabled, no messages
are sent to these destinations. Only the console receives messages.
Example
The following example enables logging error messages.
logging
The logging Global Configuration mode command logs messages to a syslog server.. Use the no
form of this command to delete the syslog server with the specified address from the list of syslogs.
Console(config)# logging on
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Syntax
•
logging
{ip4-address
|
ip6-address
|
hostname}
[
port
port
]
[
severity
level
] [
facility
facility
]
[
description
text
]
•
no logging
{ip4-address
|
ip6-address
|
hostname}
•
ip4-address
— Host IPv4 address to be used as a syslog server.
•
ip6-address
— Host IPv6 address to be used as a syslog server. When the IPv6 address is a
Link Local address (IPv6Z address), the outgoing interface name must be specified. Refer to
the usage guidelines for the interface name syntax.
•
hostname
— Specifies the host name of the syslog server. (Range: 1 - 158 characters)
•
port
— Specifies the port number for syslog messages. (Range: 1 - 65535)
•
level
— Specifies the severity level of logged messages sent to the syslog servers.
Possible values:
emergencies, alerts
,
critical
,
errors, warnings
,
notifications,
informational
and
debugging
.
•
facility
— Specifies the facility that is indicated in the message. Possible values:
local0,
local1, local2, local3, local4, local5, local 6, local7
.
•
text
— Syslog server description. (Range: 1-64 characters)
Default Configuration
The default port number is 514.
The default logging message level is
informational
.
The default facility is local7.
Command Mode
Global Configuration mode.
User Guidelines
• Up to 8 syslog servers can be used.
• If no specific severity level is specified, the global values apply to each server.
• The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> |
0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example 1/e16.
If the egress interface is not specified, the default interface is selected. Specifying interface
zone=0 is the same as not defining an egress interface.
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Example
The following example limits logged messages sent to the syslog server with IP address 10.1.1.1 to
severity level critical.
logging console
The logging console Global Configuration mode command limits messages logged to the console
based on severity. Use the no form of this command to disable logging to the console.
Console(config)# logging 10.1.1.1 severity critical
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Syntax
•
logging console
level
•
no logging console
•
level
— Specifies the severity level of logged messages displayed on the console.
Possible values:
emergencies, alerts
,
critical
,
errors, warnings
,
notifications,
informational, debugging.
Default Configuration
The default severity level is
informational
.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example limits logging messages displayed on the console to severity level errors.
logging buffered
The logging buffered Global Configuration mode command limits syslog messages displayed
from an internal buffer based on severity. Use the no form of this command to cancel using the
buffer.
Syntax
•
logging buffered
level
•
no logging buffered
•
level
— Specifies the severity level of messages logged in the buffer. Possible values:
emergencies, alerts
,
critical
,
errors, warnings
,
notifications, informational, debugging.
Default Configuration
The default severity level is
informational
.
Command Mode
Global Configuration mode.
Console(config)# logging console errors
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User Guidelines
• All the syslog messages are logged to the internal buffer. This command limits the messages
displayed to the user.
Example
The following example limits syslog messages displayed from an internal buffer based on severity
level debugging.
logging buffered size
The logging buffered size Global Configuration mode command changes the number of syslog
messages stored in the internal buffer. Use the no form of this command to return to the default
configuration.
Syntax
•
logging buffered size
number
•
no logging buffered size
•
number
— Specifies the maximum number of messages stored in the history table. (Range:
20 - 400)
Default Configuration
The default number of messages is 200.
Command Mode
Global Configuration mode.
User Guidelines
This command takes effect only after Reset.
Example
The following example changes the number of syslog messages stored in the internal buffer to 300.
Console(config)# logging buffered debugging
Console(config)# logging buffered size 300
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clear logging
The clear logging Privileged EXEC mode command clears messages from the internal logging
buffer.
Syntax
•
clear logging
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example clears messages from the internal logging buffer.
logging file
The logging file Global Configuration mode command limits syslog messages sent to the logging
file based on severity. Use the no form of this command to cancel using the buffer..
Syntax
•
logging file
level
•
no logging file
•
level
— Specifies the severity level of syslog messages sent to the logging file. Possible
values:
emergencies, alerts
,
critical
,
errors, warnings
,
notifications, informational
and
debugging.
Default Configuration
The default severity level is
errors
.
Command Mode
Global Configuration mode.
Console# clear logging
Clear logging buffer [yes/no]?
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User Guidelines
There are no user guidelines for this command.
Example
The following example limits syslog messages sent to the logging file based on severity level
alerts.
clear logging file
The clear logging file Privileged EXEC mode command clears messages from the logging file.
Syntax
•
clear logging file
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example clears messages from the logging file.
aaa logging
The aaa logging Global Configuration mode command enables logging AAA login events in the
syslog. Use the no form of this command to disable logging AAA login events.
Syntax
•
aaa logging login
•
no aaa logging login
•
login
— Indicates logging messages related to successful login events, unsuccessful login
events and other login-related events
.
Console(config)# logging file alerts
Console# clear logging file
Clear Logging File [yes/no]?
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Default Configuration
Logging AAA login events is enabled.
Command Mode
Global Configuration mode.
User Guidelines
Other types of AAA events are not subject to this command.
Example
The following example enables logging messages related to AAA login events.
file-system logging
The file-system logging Global Configuration mode command enables logging file system events
in the syslog. Use the no form of this command to disable logging file system events.
Syntax
•
file-system logging copy
•
no file-system logging copy
•
file-system logging delete-rename
•
no file-system logging delete-rename
•
copy
— Indicates logging messages related to file copy operations.
•
delete-rename
— Indicates logging messages related to file deletion and renaming
operations.
Default Configuration
Logging file system events is enabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enables logging messages related to file copy operations.
Console(config)# aaa logging login
Console(config)# file-system logging copy
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management logging
The management logging global configuration command enables logging management access list
(ACL) events in the syslog. Use the no form of this command to disable logging management
access list events.
Syntax
•
management logging deny
•
no management logging deny
•
deny
— Indicates logging messages related to deny actions of management ACLs.
Default Configuration
Logging management ACL events is enabled.
Command Mode
Global Configuration mode.
User Guidelines
Other types of management ACL events are not subject to this command.
Example
The following example enables logging messages related to deny actions of management ACLs.
show logging
The show logging Privileged EXEC mode command displays the state of logging and the syslog
messages stored in the internal buffer.
Syntax
•
show logging
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# management logging deny
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Example
The following example displays the state of logging and the syslog messages stored in the internal
buffer.
Console# show logging
Logging is enabled.
Console logging: level debugging. Console Messages: 0 Dropped
(severity).
Buffer logging: level debugging. Buffer Messages: 11 Logged, 200
Max.
File logging: level notifications. File Messages: 0 Dropped
(severity).
Syslog server 192.180.2.27 logging: errors. Messages: 6 Dropped
(severity).
Syslog server 192.180.2.28 logging: errors. Messages: 6 Dropped
(severity).
2 messages were not logged (resources)
Application filtering control
Application Event Status
AAA Login Enabled
File system Copy Enabled
File system Delete-Rename Enabled
Management ACL Deny Enabled
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show logging file
The show logging file Privileged EXEC mode command displays the state of logging and the
syslog messages stored in the logging file.
Syntax
•
show logging file
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
Buffer log:
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface FastEthernet0/0,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/0,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/1,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/2,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/3,
changed state to up
11-Aug-2002 15:41:43: %SYS-5-CONFIG_I: Configured from memory by
console
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface FastEthernet0/e0, changed state to up
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e0, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e1, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e2, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e3, changed state to down
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User Guidelines
There are no user guidelines for this command.
Example
The following example displays the logging state and the syslog messages stored in the logging
file.
Console# show logging file
Logging is enabled.
Console logging: level debugging. Console Messages: 0 Dropped
(severity).
Buffer logging: level debugging. Buffer Messages: 11 Logged, 200
Max.
File logging: level notifications. File Messages: 0 Dropped
(severity).
Syslog server 192.180.2.27 logging: errors. Messages: 6 Dropped
(severity).
Syslog server 192.180.2.28 logging: errors. Messages: 6 Dropped
(severity).
2 messages were not logged (resources)
Application filtering control
Application Event Status
AAA Login Enabled
File system Copy Enabled
File system Delete-Rename Enabled
Management ACL Deny Enabled
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show syslog-servers
The show syslog-servers Privileged EXEC mode command displays the settings of the syslog
servers.
Syntax
•
show syslog-servers
Default Configuration
This command has no default configuration.
File log:
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface FastEthernet0/0,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/0,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/1,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/2,
changed state to up
11-Aug-2002 15:41:43: %LINK-3-UPDOWN: Interface Ethernet1/3,
changed state to up
11-Aug-2002 15:41:43: %SYS-5-CONFIG_I: Configured from memory by
console
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface FastEthernet0/e0, changed state to up
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e0, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e1, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e2, changed state to down
11-Aug-2002 15:41:39: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Ethernet1/e3, changed state to down
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Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the settings of the syslog servers.
Console# show syslog-servers
Device Configuration
IP address Port Severity Facility Description
------------ ---- ------------- -------- -----------
192.180.2.275 14 Informational local7 7
192.180.2.285 14 Warning local7 7
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System Management 431
31
System Management
ping
The ping User EXEC mode command sends ICMP echo request packets to another node on the
network.
Syntax
•
ping
ip-address
|
hostname
[
size
packet_size
] [
count
packet_count
] [
timeout
time_out
]
•
ping
ipv6
{
ipv6-address
|
hostname
} [
size
packet_size
] [
count
packet_count
] [
timeout
time_out
]
ip-address
— IP address to ping.
•
ipv6
— IPv6 checks the network connectivity.
•
ip4-address
— Destination host IPv4 address.
•
ipv6-address —
Unicast or multicast IPv6 address to ping. When the IPv6 address is a Link
Local address (IPv6Z address), the outgoing interface name must be specified. Refer to the
usage guidelines for the interface name syntax.
hostname
— Host name to ping. (Range: 1 -
158 characters)
•
packet_size
— Number of bytes in a packet. The actual packet size is eight bytes larger than
the specified size specified because the device adds header information.
(Range: 56 - 1472 bytes)
•
packet_count
— Number of packets to send. If 0 is entered, it pings until stopped. (Range: 0
- 65535 packets)
•
time_out
— Timeout in milliseconds to wait for each reply. (Range: 50 - 65535 milliseconds)
Default Configuration
Default packet size is 56 bytes.
Default number of packets to send is 4.
Default timeout value is 2000 milliseconds.
Command Mode
User EXEC mode.
User Guidelines
Press
Esc
to stop pinging. Following are sample results of the
ping
command:
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•
Destination (host/network) unreachable
— The gateway for this destination indicates an
unreachable destination.
•
Destination does not respond
— If the host does not respond, a “no answer from host”
appears in ten seconds.
The IPv6Z address format: <
ipv6-link-local-address
>%<
interface-name
>
–
interface-name
—
vlan
<
integer
> |
ch
<
integer
> |
isatap
<
integer
> | <
physical-port-name
> |
0
–
integer
— <
decimal-number
> | <
integer
><
decimal-number
>
–
decimal-number
— 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
–
physical-port-name
— Designated port number, for example
1/e16
.
When using the ping ipv6 command to check network connectivity of a directly attached host
using its link local address, the egress interface may be specified in the IPv6Z format. If the
egress interface is not specified, the default interface is selected. Specifying interface zone=0 is
the same as not defining an egress interface.
When using the ping ipv6 command with a multicast address, the information displayed is taken
from all received echo responses.
Examples
The following example displays pinging results:
Console> ping 10.1.1.1
Pinging 10.1.1.1 with 64 bytes of data:
64 bytes from 10.1.1.1: icmp_seq=0. time=11 ms
64 bytes from 10.1.1.1: icmp_seq=1. time=8 ms
64 bytes from 10.1.1.1: icmp_seq=2. time=8 ms
64 bytes from 10.1.1.1: icmp_seq=3. time=7 ms
----10.1.1.1 PING Statistics----
4 packets transmitted, 4 packets received, 0% packet loss
round-trip (ms) min/avg/max = 7/8/11
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traceroute
The traceroute User EXEC mode command discovers routes that packets actually take when
traveling to their destination.
Syntax
•
traceroute
ip-address
|
hostname
[
size
packet_size
] [
ttl
max-ttl
] [
count
packet_count
] [
timeout
time_out
] [
source
ip-address
] [
tos
tos
]
•
traceroute
ipv6
{
ipv6-address
|
hostname
} [
size
packet_size
] [
ttl
max-ttl
] [
count
packet_count
]
[
timeout
time_out
] [
source
ip-address
] [
tos
tos
]
•
ipv6
— IPv6 checks the network connectivity.
•
ip4-address —
Destination host IPv4 address. (Range: Valid IP Address)
•
ip6-address —
Unicast or multicast IPv6 address to ping. When the IPv6 address is a Link
Local address (IPv6Z address), the outgoing interface name must be specified. Refer to the
usage guidelines for the interface name syntax.
•
hostname —
Host name of the destination host. (Range: 1 - 158 characters)
•
packet_size —
Number of bytes in a packet. (Range: 40 - 1500)
•
max-ttl —
The largest TTL value that can be used. The
traceroute
command terminates
when the destination is reached or when this value is reached. (Range: 1 - 255)
•
packet_count —
The number of probes to be sent at each TTL level. (Range: 1 - 10)
•
time_out —
The number of seconds to wait for a response to a probe packet.
(Range: 1 - 60)
Console> ping yahoo.com
Pinging yahoo.com (66.218.71.198) with 64 bytes of data:
64 bytes from 10.1.1.1: icmp_seq=0. time=11 ms
64 bytes from 10.1.1.1: icmp_seq=1. time=8 ms
64 bytes from 10.1.1.1: icmp_seq=2. time=8 ms
64 bytes from 10.1.1.1: icmp_seq=3. time=7 ms
----10.1.1.1 PING Statistics----
4 packets transmitted, 4 packets received, 0% packet loss
round-trip (ms) min/avg/max = 7/8/11
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•
ip-address —
One of the device’s interface addresses to use as a source address for the
probes. The device normally selects what it feels is the best source address to use.
•
tos —
The
Type-Of-Service byte in the IP Header of the packet. (Range: 0 - 255)
Default Configuration
The default number of bytes in a packet is 40.
The default maximum TTL value is 30.
The default number of probes to be sent at each TTL level is 3.
The default timeout interval in seconds is 3.
Command Mode
User EXEC mode.
User Guidelines
•The
traceroute
command takes advantage of the error messages generated by the routers when a
datagram exceeds its time-to-live (TTL) value.
•The
traceroute
command starts by sending probe datagrams with a TTL value of one. This
causes the first router to discard the probe datagram and send back an error message. The
traceroute
command sends several probes at each TTL level and displays the round-trip time for
each.
•The
traceroute
command sends out one probe at a time. Each outgoing packet may result in one
or two error messages. A "time exceeded" error message indicates that an intermediate router has
seen and discarded the probe. A "destination unreachable" error message indicates that the
destination node has received the probe and discarded it because it could not deliver the packet.
If the timer goes off before a response comes in, the
traceroute
command prints an asterisk (*).
•The
traceroute
command terminates when the destination responds, when the maximum TTL is
exceeded or when the user interrupts the trace by pressing
Esc
.
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Examples
The following example discovers the routes that packets will actually take when traveling to their
destination.
The following table describes significant fields shown above.
Console> traceroute umaxp1.physics.lsa.umich.edu
Type Esc to abort.
Tracing the route to umaxp1.physics.lsa.umich.edu
(141.211.101.64)
1 i2-gateway.stanford.edu (192.68.191.83) 0 msec 0 msec 0 msec
2 STAN.POS.calren2.NET (171.64.1.213) 0 msec 0 msec 0 msec
3 SUNV--STAN.POS.calren2.net (198.32.249.73) 1 msec 1 msec 1 msec
4 Abilene--QSV.POS.calren2.net (198.32.249.162) 1 msec 1 msec
1 msec
5 kscyng-snvang.abilene.ucaid.edu (198.32.8.103) 33 msec 35 msec
35 msec
6 iplsng-kscyng.abilene.ucaid.edu (198.32.8.80) 47 msec 45 msec
45 msec
7 so-0-2-0x1.aa1.mich.net (192.122.183.9) 56 msec 53 msec 54
msec
8 atm1-0x24.michnet8.mich.net (198.108.23.82) 56 msec 56 msec
57 msec
9 * * *
10 A-ARB3-LSA-NG.c-SEB.umnet.umich.edu (141.211.5.22) 58 msec
58 msec 58 msec
11 umaxp1.physics.lsa.umich.edu (141.211.101.64) 62 msec 63 msec
63 msec
Field Description
1 Indicates the sequence number of the device in the path to
the host.
i2-gateway.stanford.edu Host name of this device.
192.68.191.83 IP address of this device.
1 msec 1 msec 1 msec Round-trip time for each probe sent.
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The following table describes characters that may appear in the traceroute command output.
telnet
The telnet User EXEC mode command enables logging on to a host that supports Telnet.
Syntax
•
telnet
{
ip-address
|
hostname
} [
port
] [
keyword1......
]
•
ip-address —
IP address of the destination host.
•
hostname —
Host name of the destination host. (Range: 1 - 158 characters)
•
port —
A decimal TCP port number, or one of the keywords listed in the Ports table in the
User Guidelines.
•
keyword —
One or more keywords listed in the Keywords table in the User Guidelines.
Default Configuration
The default port is the Telnet port (decimal23) on the host.
Command Mode
User EXEC mode.
User Guidelines
• Telnet software supports special Telnet commands in the form of Telnet sequences that map
generic terminal control functions to operating system-specific functions. To enter a Telnet
sequence, press the escape sequence keys (Ctrl-shift-6) followed by a Telnet command character.
Field Description
* The probe timed out.
? Unknown packet type.
A Administratively unreachable. Usually, this output indicates that an access list is blocking
traffic.
F Fragmentation is required and DF is set.
H Host unreachable.
N Network unreachable.
P Protocol unreachable.
Q Source quench.
R Fragment reassembly time exceeded.
S Source route failed.
U Port unreachable.
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Special Telnet Sequences
At any time during an active Telnet session, Telnet commands can be listed by pressing the Ctrl-
shift-6-? keys at the system prompt.
A sample of this list follows. Note that the Ctrl-shift-6 sequence appears as ^^ on the screen.
Several concurrent Telnet sessions can be opened and switched. To open a subsequent session,
the current connection has to be suspended by pressing the escape sequence keys (Ctrl-shift-6)
and x to return to the system command prompt. Then open a new connection with the
telnet
User
EXEC mode command.
Keywords Table
Telnet Sequence Purpose
Ctrl-shift-6-b Break
Ctrl-shift-6-c Interrupt Process (IP)
Ctrl-shift-6-h Erase Character (EC)
Ctrl-shift-6-o Abort Output (AO)
Ctrl-shift-6-t Are You There? (AYT)
Ctrl-shift-6-u Erase Line (EL)
Console> ‘Ctrl-shift-6’ ?
[Special telnet escape help]
^^ B sends telnet BREAK
^^ C sends telnet IP
^^ H sends telnet EC
^^ O sends telnet AO
^^ T sends telnet AYT
^^ U sends telnet EL
Options Description
/echo Enables local echo.
/quiet Prevents onscreen display of all messages from the software.
/source-interface Specifies the source interface.
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Ports Table
/stream Turns on stream processing, which enables a raw TCP stream with no Telnet
control sequences. A stream connection does not process Telnet options and can be
appropriate for connections to ports running UNIX-to-UNIX Copy Program
(UUCP) and other non-Telnet protocols.
Keyword Description Port Number
BGP Border Gateway Protocol 179
chargen Character generator 19
cmd Remote commands 514
daytime Daytime 13
discard Discard 9
domain Domain Name Service 53
echo Echo 7
exec Exec 512
finger Finger 79
ftp File Transfer Protocol 21
ftp-data FTP data connections 20
gopher Gopher 70
hostname NIC hostname server 101
ident Ident Protocol 113
irc Internet Relay Chat 194
klogin Kerberos login 543
kshell Kerberos shell 544
login Login 513
lpd Printer service 515
nntp Network News Transport Protocol 119
pim-auto-rp PIM Auto-RP 496
pop2 Post Office Protocol v2 109
pop3 Post Office Protocol v3 110
smtp Simple Mail Transport Protocol 25
sunrpc Sun Remote Procedure Call 111
syslog Syslog 514
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• This command lists concurrent telnet connections to remote hosts that were opened by the
current telnet session to the local device. It does not list telnet connections to remote hosts that
were opened by other telnet sessions.
Example
The following example displays connecting to 176.213.10.50 via Telnet.
resume
The resume User EXEC mode command enables switching to another open Telnet session.
Syntax
•
resume
[
connection
]
•
connection
— The connection number. (Range: 1 - 4 connections)
Default Configuration
The default connection number is that of the most recent connection.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following command switches to open Telnet session number 1.
tacacs TAC Access Control System 49
talk Talk 517
telnet Telnet 23
time Time 37
uucp Unix-to-Unix Copy Program 540
whois Nickname 43
www World Wide Web 80
Console> telnet 176.213.10.50
Esc U sends telnet EL
Console> resume 1
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reload
The reload Privileged EXEC mode command reloads the operating system.
Syntax
•
reload
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example reloads the operating system.
hostname
The hostname Global Configuration mode command specifies or modifies the device host name.
To remove the existing host name, use the no form of the command.
Syntax
•
hostname
name
•
no hostname
•
name
— The host name of the device. (Range: 1 - 158 characters)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
Console# reload
This command will reset the whole system and disconnect your
current session. You haven't saved your changes. Are you sure you
want to continue ? (Y/N)[N] N
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User Guidelines
There are no user guidelines for this command.
Example
The following example specifies the device host name.
service cpu-utilization
The service cpu-utilization global configuration mode command allows the software to measure
CPU utilization. Use the no form of this command to disable measuring.
Syntax
•
service cpu-utilization
•
no service cpu-utilization
Default Configuration
The service cpu-utilization function is enabled.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example.
The following example allows the software to measure CPU utilization.
Console(config)# hostname Dell
Dell(config)#
console(config)# service cpu-utilization
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stack master
The stack master Global Configuration mode command enables forcing the selection of a stack
master. Use the no form of this command to return to the default configuration.
Syntax
•
stack master unit
unit
•
no stack master
•
unit —
Unit number of the new master (Range: 1 - 2)
Default Configuration
Disables forcing the selection of a stack master.
Command Mode
Global Configuration mode.
User Guidelines
• The following algorithm is used to select a unit as the master:
– If only one master-enabled unit is in the stack (1 or 2), it becomes the master.
– If a unit configured as a forced master, it becomes the master.
If a forced master unit is removed from a stack and placed in a different stack with another forced
master unit, both are considered to be forced, and the election criteria continue as follows:
– The unit with the longer up-time is elected master. Units are considered to have the same up-
time if they were powered up within ten minutes of each other.
– If both forced master units have the same up-time, Unit 1 is elected.
Example
The following example selects Unit 2 as the stack master.
stack reload
The stack reload Privileged EXEC mode command reloads stack members.
Syntax
•
stack reload
[
unit
]
•
unit —
Number of the unit to be reloaded (Range: 1 - 8)
Console(config)# stack master unit 2
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Default Configuration
All units are reloaded.
Command Mode
Privileged EXEC mode.
User Guidelines
If no unit is specified, all units are reloaded.
Example
The following example reloads Unit 2 of the stack.
show stack
The show stack User EXEC mode command displays information about the status of a stack.
Syntax
•
show stack
[
unit
unit
]
•
unit —
Specifies the number of the unit. (Range: 1 - 6)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays stack status.
Console(config)# stack reload unit 2
Console> show stack
Unit MAC Address Software Master Uplink Downlink Status
---- -------------- -------- ------- ------ -------- ------
1 00:33:97:02:16:00 1.0.0.7 Forced 8 2 Master
2 00:33:97:02:21:00 1.0.0.7 Enabled 1 3 backup
3 00:33:97:02:12:00 1.0.0.7 Disabled 2 4 Slave
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show users
The show users User EXEC mode command displays information about the active users.
Syntax
•
show users
Default Configuration
This command has no default configuration.
4 00:33:97:02:18:00 1.0.0.6 Disabled 3 5 Slave
5 00:33:97:02:14:00 1.0.0.7 Disabled 4 6 Slave
6 00:33:97:02:22:00 1.0.0.7 Disabled 5 7 Slave
7 00:33:97:02:11:00 1.0.0.7 Disabled 8 6 Slave
8 00:33:97:02:19:00 1.0.0.7 Disabled 7 1 Slave
Topology is Ring
Unit Unit Id After
Reset
---- ---------------
11
22
33
44
55
66
77
88
console#
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Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays information about the active users.
show sessions
The show sessions User EXEC mode command lists open Telnet sessions.
Syntax
•
show sessions
Default Configuration
There is no default configuration for this command.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console> show users
Username Protocol Location
---------- ----------- ------------
Bob Serial
John SSH 172.16.0.1
Robert HTTP 172.16.0.8
Betty Telnet 172.16.1.7
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Examples
The following example lists open Telnet sessions.
The following table describes significant fields shown above.
show system
The show system User EXEC mode command displays system information.
Syntax
•
show system
[
unit
unit
]
•
unit —
Specifies the number of the unit. (Range: 1 - 8)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console> show sessions
Connection Host Address Port Byte
---------- ------------- ---------- ----- ----
1 Remote device 172.16.1.1 23 89
2 172.16.1.2 172.16.1.2 23 8
Field Description
Connection Connection number.
Host Remote host to which the device is connected through a Telnet session.
Address IP address of the remote host.
Port Telnet TCP port number
Byte Number of unread bytes for the user to see on the connection.
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Example
The following example displays the system information.
show version
The show version User EXEC mode command displays system version information.
Syntax
•
show version
[
unit
unit
]
•
unit —
Specifies the number of the unit. (Range: 1 - 6)
Default Configuration
This command has no default configuration.
Console> show system
Unit Type
---- ---------
1 PowerConnect 3524
2PowerConnect 3524
3 PowerConnect 3524
4 PowerConnect 3524
5 PowerConnect 3524
6PowerConnect 3524
7PowerConnect 3524
8PowerConnect 3524
Unit Main Power Supply Redundant Power Supply
1ok
2ok
3ok
4ok
5ok
6ok
7ok
8ok
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Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays system version information (only for demonstration purposes).
asset-tag
The asset-tag Global Configuration mode command specifies the asset tag of the device. To return
to the default configuration, use the no form of the command.
Syntax
•
asset-tag
[
unit
unit
]
tag
•
no asset-tag
[
unit
unit
]
•
unit —
Specifies the number of the unit. (Range: 1 - 8)
•
tag
— Specifies the asset tag of the device. (Range: 1 - 16 characters)
Default Configuration
No asset tag is defined.
The default unit number is that of the master unit
Command Mode
Global Configuration mode.
Console> show version
SW version 1.0.0.0 (date 23-Jul-2004 time 17:34:19)
Boot version 1.0.0.0 (date 11-Jan-2004 time 11:48:21)
HW version 1.0.0
Unit SW version Boot version HW version
---- ---------- ------------ ----------
1 1.0.0.0 2.178 1.0.0
2 1.0.0.0 2.178 1.0.0
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User Guidelines
There are no user guidelines for this command.
Example
The following example specifies the asset tag of the master unit as "1qwepot".
Console(config)# asset-tag 1qwepot
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show system id
The show system id User EXEC mode command displays system ID information.
Syntax
•
show system id
[
unit
unit
]
•
unit —
Specifies the number of the unit. (Range: 1 - 6)
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays system service and asset tag information.
Console> show system id
Service Tag: 89788978
Serial number: 8936589782
Asset tag: 7843678957
Unit Service tag Serial number Asset tag
---- ----------- ------------ ---------
1 89788978 893659782 7843678957
2 34254675 3216523877 5621987728
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show cpu utilization
The show cpu utilization Privileged EXEC mode command displays display information about
CPU utilization.
Syntax
•
show cpu utilization
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
•Use the
service cpu-utilization
Global Configuration mode command to enable measuring CPU
utilization.
Example
The following example displays CPU utilization..
Console# show cpu utilization
CPU utilization service is on.
CPU utilization
-------------------------
five seconds: 5%; one minute: 3%; five minutes: 3%
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TACACS+ Commands 453
32
TACACS+ Commands
tacacs-server host
The tacacs-server host Global Configuration mode command specifies a TACACS+ host. Use the
no form of this command to delete the specified name or address.
Syntax
•
tacacs-server host {
ip-address
|
hostname
}
[
single-connection
] [
port
port-number
] [
timeout
timeout
] [
key
key-string
] [
source
source
] [
priority
priority
]
•
no tacacs-server host {
ip-address
|
hostname
}
•
ip-address
— IP address of the TACACS+ server.
•
hostname
— Host name of the TACACS+ server. (Range: 1 - 158 characters)
•
single-connection
— Indicates a single-connection. Rather than have the device open and
close a TCP connection to the daemon each time it must communicate, the single-
connection option maintains a single open connection between the device and the daemon.
•
port-number —
Specifies a server port number. (Range: 0 - 65535)
•
timeout —
Specifies the timeout value in seconds. (Range: 1 - 30)
•
key-string —
Specifies the authentication and encryption key for all TACACS+
communications between the device and the TACACS+ server. This key must match the
encryption key used on the TACACS+ daemon. To specify an empty string, enter "".
(Range: 0 - 128 characters)
•
source —
Specifies the source IP address to use for the communication. 0.0.0.0 indicates a
request to use the IP address of the outgoing IP interface.
•
priority —
Determines the order in which the TACACS+ servers are used, where 0 is the
highest priority. (Range: 0 - 65535)
Default Configuration
No TACACS+ host is specified.
If no port number is specified, default port number 49 is used.
If no host-specific timeout, key-string or source value is specified, the global value is used.
If no TACACS+ server priority is specified, default priority 0 is used.
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Command Mode
Global Configuration mode.
User Guidelines
• Multiple
tacacs-server host
commands can be used to specify multiple hosts.
Example
The following example specifies a TACACS+ host.
tacacs-server key
The tacacs-server key Global Configuration mode command sets the authentication encryption
key used for all TACACS+ communications between the device and the TACACS+ daemon. Use
the no form of this command to disable the key.
Syntax
•
tacacs-server key
key-string
•
no tacacs-server key
•
key-string —
Specifies the authentication and encryption key for all TACACS+
communications between the device and the TACACS+ server. This key must match the
encryption key used on the TACACS+ daemon. (Range: 0 - 128 characters)
Default Configuration
Empty string.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example sets the authentication encryption key.
Console(config)# tacacs-server host 172.16.1.1
Console(config)# tacacs-server key dell-s
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tacacs-server timeout
The tacacs-server timeout Global Configuration mode command sets the interval during which
the device waits for a TACACS+ server to reply. Use the no form of this command to return to the
default configuration.
Syntax
•
tacacs-server timeout
timeout
•
no tacacs-server timeout
•
timeout —
Specifies the timeout value in seconds. (Range: 1 - 30)
Default Configuration
5 seconds.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example sets the timeout value to 30.
tacacs-server source-ip
The tacacs-server source-ip Global Configuration mode command configures the source
IP address to be used for communication with TACACS+ servers. Use the no form of this
command to return to the default configuration.
Syntax
•
tacacs-server source-ip
source
•
no tacacs-server source-ip
source
•
source —
Specifies the source IP address.
Default Configuration
The source IP address is the address of the outgoing IP interface.
Command Mode
Global Configuration mode.
Console(config)# tacacs-server timeout 30
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User Guidelines
There are no user guidelines for this command.
Examples
The following example specifies the source IP address.
show tacacs
The show tacacs Privileged EXEC mode command displays configuration and statistical
information about a TACACS+ server.
Syntax
•
show tacacs
[
ip-address
]
•
ip-address—
Host name or IP address of the host.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# tacacs-server source-ip 172.16.8.1
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Examples
The following example displays configuration and statistical information about a TACACS+
server.
Console# show tacacs
Device Configuration
--------------------
IP address Status Port Single
Connection
TimeOut Source
IP
Priority
---------- -------- ---- --------- ------- ------ --------
172.16.1.1 Connected 49 No Global Global 1
Global values
-------------
TimeOut: 3
Device Configuration
---------------------
Source IP: 172.16.8.1
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TIC Commands 459
33
TIC Commands
passwords min-length
The passwords min-length Global Configuration mode command sets the minimum length
required for passwords in the local database. Use the no form of this command to remove the
minimum password length requirement.
Syntax
•
passwords min-length
length
•
no passwords min-length
•
length
— The minimum length required for passwords. (Range: 8 - 64 characters)
Default Configuration
No minimum password length.
Command Mode
Global Configuration mode.
User Guidelines
• Relevant to local user passwords, line passwords, and enable passwords.
• The software checks the password length when an unencrypted password is defined or a user
enters an unencrypted password when logging in.
NOTE: The length of encrypted passwords is only checked when the user logs in. Similarly, the length
of passwords that were defined before the minimum password length requirement was configured are
checked only when the user logs in.
Example
The following example configures a minimum length of 8 characters required for passwords in the
local database.
Console(config)# passwords min-length 8
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password-aging
The password-aging Line Configuration mode command configures the aging time of line
passwords. Use the no form of this command to disable password expiration time.
Syntax
•
password-aging
days
• no password-aging
•
days
— The number of days before a password change is forced. (Range: 1 - 365)
Default Configuration
Password aging is disabled.
Command Mode
Line Configuration mode.
User Guidelines
• The aging time is calculated from the day the password is defined (not from the day the aging is
defined).
• After a password expires a user can login for another 3 times.
• 10 days before expiration a syslog message is generated.
Example
The following example configures 5 days as the aging time of line passwords.
passwords aging
The passwords aging Global Configuration mode command configures the aging time of
username passwords and enables passwords. Use the no form of this command to disable password
expiration time.
Syntax
•
passwords aging username
name days
•
no passwords aging username
name
Console (config-line)#
password-aging
5
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•
passwords aging enable-password
level days
•
no passwords aging enable-password
level
•
name
— The name of the user. (Range: 1 - 20 characteres)
•
level
— The level for which the password applies. (Range: 1 - 15)
•
days
— The number of days before a password change is forced. (Range: 1 - 365)
Default Configuration
Password aging is disabled.
Command Mode
Global Configuration mode.
User Guidelines
• The aging time is calculated from the day the password was defined, and not from the day the
aging was defined.
• After a password expires a user can login for another 3 times.
• 10 days before expiration a syslog message is generated.
Example
The following example configures configures 40 days as the aging time of global passwords.
passwords history
The passwords history Global Configuration mode command sets the number of required
password changes before a password in the local database can be reused. Use the no form of this
command to remove this requirement,.
Syntax
•
passwords history
number
•
no passwords history
•
number —
Indicates the required number of password changes before a password can be
reused. (Range: 1 - 10)
Default Configuration
No required number of password changes before reusing a password.
Console (config)#
passwords aging username
40
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Command Mode
Global Configuration mode.
User Guidelines
• Relevant to local user passwords, line passwords, and enable passwords.
• Password history is not checked during the configuration download.
• Password history is saved even if the feature is disabled.
• A user’s password history is saved as long as the user is defined.
• If the user enters a password that is identical to the previously used one, the password is not
included in the password history count. This is required to enable the user to modify privilege
level or aging, without having to change passwords.
Example
The following example configures the required number of password changes before a password can
be reused to 3.
passwords history hold-time
The passwords history hold-time Global Configuration mode command configures the number of
days a password is relevant for tracking its password history. Use the no form of this command to
return to the default configuration.
Syntax
•
passwords history hold-time
days
•
no passwords hold-time
•
days —
Number of days a password is relevant for tracking its password history. (Range: 1 - 365)
Default Configuration
Disabled.
Command Mode
Global Configuration mode.
User Guidelines
Relevant to local user passwords, line passwords, and enable passwords.
For tracking purposes, passwords are not deleted from the history database after becoming
’irrelevant’. A period of time that the password cannot be changed (according to the history
table) must be configured. By increasing a password ’s relevance for tracking purposes by a
number of days, it may cause the irrelevant password to be relevant again.
Console(config)# passwords history 3
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Example
The following example configures the number of days that a password is relevant for tracking its
password history to 120.
passwords lockout
The passwords lockout Global Configuration mode command sets the number of failed login
attempts before a user account is locked. Use the no form of this command to remove this
condition.
Syntax
•
passwords lockout
number
•
no passwords lockout
•
number —
Number of failed login attempts before the user account is locked. (Range: 1 - 5)
Default Configuration
No locked user account due to failed login attempts.
Command Mode
Global Configuration mode.
User Guidelines
• Relevant to local user passwords, line passwords, and enable passwords.
• The user account can still access the local console.
• A different administrator, with privilege level 15, can release a locked account by using the
set
username active
command.
Example
The following example configures the number of failed login attempts before a user account is
locked to 3.
Console(config)# passwords history hold-time 120
Console(config)# passwords lockout 3
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aaa login-history file
The aaa login-history file Global Configuration mode command enables writing to the login
history file. Use the no form of this command to disable writing to the file.
Syntax
•
aaa login-history file
•
no aaa login-history file
Default Configuration
Writing to the login history file is enabled.
Command Mode
Global Configuration mode.
User Guidelines
The login history is also saved in the internal buffer of the device.
Example
The following example enables writing to the login history file.
set username active
The set username active Privileged EXEC mode command reactivates a locked user account.
Syntax
•
set username
name
active
•
name —
Name of the user. (Range: 1 - 20 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• A locked user account can be reactivated from the local console.
• A different user, with privilege level 15, can reactivate a locked user account from any remote or
local connection.
Console(config)# aaa login-history file
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Example
The following example reactivates a suspended user with username bob.
set line active
The set line active Privileged EXEC mode command reactivates a locked line.
Syntax
•
set line {console | telnet | ssh} active
•
console
— Console terminal line.
•
telnet
— Virtual terminal for remote console access (Telnet).
•
ssh
— Virtual terminal for secured remote console access (SSH).
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example reactivates the line for a virtual terminal for remote console access.
set enable-password active
The set enable-password active Privileged EXEC mode command reactivates a locked enable
password.
Syntax
•
set enable-password
level
active
•
level
— The user level. (Range: 1 - 15)
Default Configuration
This command has no default configuration.
Console# set username bob active
Console# set line telnet active
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Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example reactivates a locked level 15 enable password.
show passwords configuration
The show passwords configuration Privileged EXEC mode command displays information about
password management.
Syntax
•
show passwords configuration
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays information about password management in the local database.
Console# set enable-password 15 active
Console# show passwords configuration
Minimal length: 8
History: 10
History hold time: 365 days
Lock-out: Disabled
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The following table describes significant fields shown above.
Enable Passwords
Level Aging Expiry date Lockout
----- ----- ----------- -------
1 90 Jan 18 2005 1
15 90 Jan 18 2005 0
Line Passwords
Level Aging Expiry date Lockout
----- ----- ----------- -------
Console - - -
Telnet 90 Jan 18 2005 LOCKOUT
SSH 90 Jan 21 2005 0
Field Description
Minimal length Minimum length required for passwords in the local database.
History Number of required passwords changes before a password in the local database
can be reused.
History hold time Period of time that a password is relevant for tracking password history.
Lockout control Control locking a user account after a series of authentication failures.
Enable passwords Describes the configuration and status of a local password with a specific level.
Aging Password expiration time in days.
Expiry date Expiration date of a password.
Lockout If lockout control is enabled, specifies the number of failed authentication
attempts since the user last logged in successfully. If the user account is locked,
specifies LOCKOUT.
Line Passwords Describes the configuration and status of a specific line password.
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show users login-history
The show users login-history Privileged EXEC mode command displays information about the
login history of users.
Syntax
•
show users login-history [username
name
]
•
name —
Name of the user. (Range: 1 - 20 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the login history of users.
Console# show users login-history
Login Time Username Protocol Location
-------------- -------- -------- --------
Jan 18 2004 23:58:17 Robert HTTP 172.16.1.8
Jan 19 2004 07:59:23 Robert HTTP 172.16.0.8
Jan 19 2004 08:23:48 Bob Serial
Jan 19 2004 08:29:29 Robert HTTP 172.16.0.8
Jan 19 2004 08:42:31 John SSH 172.16.0.1
Jan 19 2004 08:49:52 Betty Telnet 172.16.1.7
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show users accounts
The show users accounts Privileged EXEC mode command displays information about the local
user database.
Syntax
•
show users accounts
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the local users configured with access to the system.
The following table describes significant fields shown above.
Console# show users accounts
Username Privilege Password
Aging
Password
Expiry date
Lockout
-------- --------- -------- ----------- -------
Bob 1 120 Jan 21 2005 -
Admin 15 120 Jan 21 2005 -
Field Description
Username Name of the user.
Privilege User’s privilege level.
Password Aging User’s password expiration time in days.
Password Expiry Date Expiration date of the user’s password.
Lockout If lockout control is enabled, specifies the number of failed authentication
attempts since the user last logged in successfully. If the user account is
locked, specifies LOCKOUT.
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Tunnel
interface tunnel
The interface tunnel Global Configuration
mode
command enters tunnel interface configuration mode.
Syntax
•
interface tunnel
number
•
number
— Tunnel index. (Range: 1)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example enters tunnel interface configuration mode to configure tunnel 1.
tunnel mode ipv6ip
The tunnel mode ipv6ip Interface Tunnel Configuration
mode
command configures an IPv6 transition
mechanism global support mode. Use the no form of this command to remove the IPv6 transition
mechanism.
Syntax
•
tunnel mode ipv6ip
{
isatap
}
• no tunnel mode ipv6ip
•
isatap
— Automatic IPv6 over IPv4 ISATAP tunnel is enabled.
Default Configuration
Disabled.
Console (config)# interface tunnel 1
Console (config-tunnel)#
34
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Command Mode
Interface Tunnel Configuration mode.
User Guidelines
• The system can be enabled to an ISATAP tunnel. When enabled, an automatic tunnel interface is created
on each interface that is assigned with IPv4 address.
NOTE: Note: on a specific interface (that is port/ VLAN), both native IPV6 and transition mechanisms can coexist. The
host implementation selects the egress interface according to the scope of the destination IP address (for example
ISATAP/ Native IPv6).
Example
The following example configures an IPv6 transition mechanism global support mode.
tunnel isatap router
The tunnel isatap router Interface Tunnel Configuration
mode
command configures a global string that
represents a specific automatic tunnel router domain name. Use the no form of this command to remove the
string associated with the router domain name and return to the default.
Syntax
•
tunnel isatap router
router_name
•no
tunnel isatap router
•
router_name
— A string representing the router’s domain name.
Default Configuration
By default, ‘ISATAP’ string represents the corresponding automatic tunnel router’s domain name.
Command Mode
Interface Tunnel Configuration mode.
User Guidelines
•The
ipv6 tunnel routers-dns
command determines the string that the host uses for automatic tunnel router
lookup in IPv4 DNS procedure. By default, the string ‘ISATAP’ is used for the corresponding automatic
tunnel types.
• Per tunnel only one string can represent the automatic tunnel router name. Using this command overwrites
the existing entry.
Console (config)# interface tunnel 1
Console (config-tunnel)# tunnel mode ipv6ip
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Example
The following example configures a global string "Dell_Tunnel_Router" to represent a specific automatic
tunnel router domain name..
tunnel source
The tunnel source Interface Tunnel Configuration
mode
command sets the local (source) tunnel interface
IPv4 address. Use the no form to delete the tunnel local address.
Syntax
•
tunnel source
{
auto
|
ip-address
ipv4-address
|
interface
}
• no tunnel source
•
auto
— The system minimum IPv4 address is used as the source address for packets sent on the
tunnel interface. If the IPv4 address is changed then the local address of the tunnel interface is also
changed.
•
ip4-address
— Pv4 address to use as the source address for packets sent on the tunnel interface. The
tunnel interface local address is not changed when the IPv4 address is moved to another interface.
•
interface
— Interface which the minimum IPv4 address is used as the source address for packets sent
on the tunnel interface. If the minimum IPv4 address is removed from the interface or moved to
another interface then the next minimum IPv4 address is chosen as the local IPv4 address. The
parameter has the following format:
ethernet
interface-number
|
vlan
vlan-id
|
port-channel
number.
Default Configuration
No source address is defined.
Command Mode
Interface Tunnel Configuration mode.
User Guidelines
• The configured source IPv4 address is used for forming the tunnel interface identifier. The interface
identifier is set to the 8 least significant bytes of the SIP field of the encapsulated IPv6 tunneled packets.
Example
The following example sets the local (source) tunnel interface IPv4 address.
Console (config)# interface tunnel 1
Console (config-tunnel)# tunnel isatap router Dell_Tunnel_Router
Console (config)# interface tunnel 1
Console (config-tunnel)# tunnel source auto
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tunnel isatap query-interval
The tunnel isatap query-interval Global Configuration
mode
command configures the interval between
DNS Queries (before the IP address of the ISATAP router is known) for the automatic tunnel router domain
name. Use the no form of this command to return to default.
Syntax
•
tunnel isatap query-interval
seconds
• no tunnel isatap query-interval
•
seconds
— Specify the number of seconds between DNS Queries. (Range:
10 – 3600)
Default Configuration
10 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• This command determines the interval of DNS queries before the IP address of the ISATAP router is
known. When the IP address is known the robustness level that is set by the
tunnel isatap robustness
global configuration command determines the refresh rate.
Example
The following example configures the interval between DNS Queries for the automatic tunnel router domain
to 60 seconds.
tunnel isatap solicitation-interval
The tunnel isatap solicitation-interval Global Configuration
mode
command configures the interval
between ISATAP router solicitations messages (when there is no active ISATAP router). Use the no form of
this command to return to default.
Syntax
•
tunnel isatap solicitation-interval
seconds
• no tunnel isatap solicitation-interval
•
seconds
— Specify the number of seconds between ISATAP router solicitations messages. (Range: 10
– 3600)
Console (config)# tunnel isatap query-interval 60
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Default Configuration
10 seconds.
Command Mode
Global Configuration mode.
User Guidelines
• This command determines the interval of Router Solicitation messages when there is no active ISATAP
router. When there is an active ISATAP router, the robustness level that is set by the
tunnel isatap
robustness
global configuration command determines the refresh rate.
Example
The following example configures the interval between ISATAP router solicitations messages to 60 seconds.
tunnel isatap robustness
The tunnel isatap robustness Global Configuration
mode
command configures the number of DNS
Query/Router Solicitation refresh messages that the device sends. Use the no form of this command to
return to default.
Syntax
•
tunnel isatap robustness
number
• no tunnel isatap robustness
•
number
— Specify the number of refresh messages. (Range: 1 – 20)
Default Configuration
3 times.
Command Mode
Global Configuration mode.
User Guidelines
• The DNS query interval (after the IP address of the ISATAP router is known) is the TTL that is received
from the DNS divided by (Robustness + 1).
• The router solicitation interval (when there is an active ISATAP router) is the minimum-router-lifetime
that is received from the ISATAP router divided by (Robustness + 1).
Console (config)# tunnel isatap solicitation-interval 60
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Example
The following example configures the number of DNS Query/Router Solicitation refresh messages that the
device sends to 6 times.
show ipv6 tunnel
The show ipv6 tunnel
Privileged EXEC mode
command displays information on the ISATAP tunnel.
Syntax
• show ipv6 tunnel
Default Configuration
This command has no default setting.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays information on the ISATAP tunnel.
Console (config)# tunnel isatap robustness 6
Console> show ipv6 tunnel
Router DNS name: ISATAP
Router IPv4 address: 172.16.1.1
DNS Query interval: 10 seconds
Min DNS Query interval: 0 seconds
Router Solicitation interval: 10 seconds
Min Router Solicitation interval: 0 seconds
Robustness: 3
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User Interface
enable
The enable User EXEC mode command enters the Privileged EXEC mode.
Syntax
•
enable
[
privilege-level
]
•
privilege-level
— Privilege level to enter the system. (Range: 1 - 15)
Default Configuration
The default privilege level is 15.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enters Privileged EXEC mode.
disable
The disable Privileged EXEC mode command returns to the User EXEC mode.
Syntax
•
disable
[
privilege-level
]
•
privilege-level
— Privilege level to enter the system. (Range: 1 - 15)
Console> enable
enter password:
Console#
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Default Configuration
The default privilege level is 1.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example returns to Users EXEC mode.
login
The login User EXEC mode command changes a login username.
Syntax
•
login
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enters Privileged EXEC mode and logs in with username admin.
Console# disable
Console>
Console> login
User Name:admin
Password:*****
Console#
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configure
The configure Privileged EXEC mode command enters the Global Configuration mode.
Syntax
•
configure
Default Configuration
This command has no default configuration.
Command Mode
Privileged
EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enters Global Configuration mode.
exit (Configuration)
The exit command exits any configuration mode to the next highest mode in the CLI mode
hierarchy.
Syntax
•
exit
Default Configuration
This command has no default configuration.
Command Mode
All configuration modes.
User Guidelines
There are no user guidelines for this command.
Console# configure
Console(config)#
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Example
The following example changes the configuration mode from Interface Configuration mode to
Privileged EXEC mode.
exit
The exit Privileged/User EXEC mode command closes an active terminal session by logging off
the device.
Syntax
•
exit
Default Configuration
This command has no default configuration.
Command Mode
Privileged and User EXEC modes.
User Guidelines
There are no user guidelines for this command.
Example
The following example closes an active terminal session.
end
The end command ends the current configuration session and returns to the Privileged EXEC
mode.
Syntax
•
end
Console(config-if)# exit
Console(config)# exit
Console#
Console> exit
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Default Configuration
This command has no default configuration.
Command Mode
All configuration modes.
User Guidelines
There are no user guidelines for this command.
Example
The following example changes from Global Configuration mode to Privileged EXEC mode.
help
The help command displays a brief description of the help system.
Syntax
•
help
Default Configuration
This command has no default configuration.
Command Mode
All command modes.
User Guidelines
There are no user guidelines for this command.
Console(config)# end
Console#
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Example
The following example describes the help system.
terminal datadump
The terminal datadump User EXEC mode command enables dumping all the output of a show
command without prompting. Use the no form of this command to disable dumping.
Syntax
•
terminal datadump
•
no terminal datadump
Default Configuration
Dumping is disabled.
Command Mode
User EXEC mode.
User Guidelines
• By default, a
More
prompt is displayed when the output contains more lines than can be
displayed on the screen. Pressing the
Enter
key displays the next line; pressing the Spacebar
displays the next screen of output. The data-dump command enables dumping all output
immediately after entering the show command.
• This command is relevant only for the current session.
Console# help
Help may be requested at any point in a command by entering a
question mark '?'. If nothing matches the currently entered
incomplete command, the help list is empty. This indicates that
for a query at this point, there is no command matching the
current input. If the request is within a command, enter backspace
and erase the entered characters to a point where the request
results in a display.
Help is provided when:
1. There is a valid command and a help request is made for
entering a parameter or argument (e.g. 'show ?'). All possible
parameters or arguments for the entered command are displayed.
2. An abbreviated argument is entered and a help request is made
for arguments matching the input (e.g. 'show pr?').
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Example
This example dumps all output immediately after entering a show command.
show history
The show history User EXEC mode command lists the commands entered in the current session.
Syntax
•
show history
Default Configuration
This command has no default configuration.
Command Mode
User EXEC mode.
User Guidelines
• The buffer includes executed and unexecuted commands.
• Commands are listed from the first to the most recent command.
• The buffer remains unchanged when entering into and returning from configuration modes.
Example
The following example displays all the commands entered while in the current Privileged EXEC mode.
Console> terminal datadump
Console# show version
SW version 3.131 (date 23-Jul-2004 time 17:34:19)
HW version 1.0.0
Console# show clock
15:29:03 Jun 17 2004
Console# show history
show version
show clock
show history
3 commands were logged (buffer size is 10)
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show privilege
The show privilege Privileged/User EXEC mode command displays the current privilege level.
Syntax
•
show privilege
Default Configuration
This command has no default configuration.
Command Mode
Privileged and User EXEC modes.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays the current privilege level for the Privileged EXEC mode.
Console# show privilege
Current privilege level is 15
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VLAN Commands
vlan database
The vlan database Global Configuration mode command enters the VLAN Configuration mode.
Syntax
•
vlan database
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enters the VLAN database mode.
vlan
The vlan VLAN Configuration mode command creates a VLAN. Use the no form of this command
to delete a VLAN.
Syntax
•
vlan
vlan-range
•
no vlan
vlan-range
•
vlan-range
— Specifies a list of VLAN IDs to be added. Separate non-consecutive VLAN
IDs with a comma and no spaces; a hyphen designates a range of IDs.
Console(config)# vlan database
Console(config-vlan)#
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Default Configuration
This command has no default configuration.
Command Mode
VLAN Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example VLAN number 1972 is created.
interface vlan
The interface vlan Global Configuration mode command enters the Interface Configuration
(VLAN) mode.
Syntax
•
interface vlan
vlan-id
•
vlan-id
— Specifies an existing VLAN ID.
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example enters Interface Configuration mode for VLAN 1.
Console(config)# vlan database
Console(config-vlan)# vlan 1972
Console(config)# interface vlan 1
Console(config-if)#
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interface range vlan
The interface range vlan Global Configuration mode command enables simultaneously
configuring multiple VLANs.
Syntax
•
interface range vlan
{
vlan-range
|
all
}
•
vlan-range
— Specifies a list of VLAN IDs to be added. Separate non-consecutive VLAN
IDs with a comma and no spaces; a hyphen designates a range of IDs.
•
all
— All existing static VLANs.
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Commands under the interface range context are executed independently on each interface in the
range. If the command returns an error on one of the interfaces, an error message is displayed
and execution of the command continues on the other interfaces.
• The following commands are not supported with the
interface range vlan
command:
switchport access vlan
,
private-vlan community
,
private-vlan isolated
and
switchport
protected
.
Example
The following example groups VLANs 221, 228 and 889 to receive the same command.
name
The name Interface Configuration mode command adds a name to a VLAN. Use the no form of
this command to remove the VLAN name.
Syntax
•
name
string
•
no name
•
string
— Unique name to be associated with this VLAN. (Range: 1 - 32 characters)
Console(config)# interface range vlan 221-228,889
Console(config-if)#
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Default Configuration
No name is defined.
Command Mode
Interface Configuration (VLAN) mode. Cannot be configured for a range of interfaces (range
context).
User Guidelines
There are no user guidelines for this command.
Example
The following example gives VLAN number 19 the name Marketing.
switchport access vlan
The switchport access vlan Interface Configuration mode command configures the VLAN ID
when the interface is in access mode. Use the no form of this command to return to the default
configuration.
Syntax
•
switchport access vlan {
vlan-id
|
dynamic
}
•
no switchport access vlan
•
vlan-id
— Specifies the ID of the VLAN to which the port is configured.
•
dynamic
— Indicates that the port is assigned to a VLAN based on the source MAC address
of the host connected to the port.
Default Configuration
All ports belong to VLAN 1.
Command Mode
Interface configuration (Ethernet, port-channel) mode.
User Guidelines
• The command automatically removes the port from the previous VLAN and adds it to the new
VLAN.
Console(config)# interface vlan 19
Console(config-if)# name Marketing
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Example
The following example configures a VLAN ID of 23 to the untagged layer 2 VLAN Ethernet port
1/e16.
switchport trunk allowed vlan
The switchport trunk allowed vlan Interface Configuration mode command adds or removes
VLANs to or from a trunk port.
Syntax
•
switchport trunk allowed vlan
{
add
vlan-list
|
remove
vlan-list
}
•
add
vlan-list
— List of VLAN IDs to be added. Separate non-consecutive VLAN IDs with a
comma and no spaces. A hyphen designates a range of IDs.
•
remove
vlan-list
— List of VLAN IDs to be removed. Separate non-consecutive VLAN IDs
with a comma and no spaces. A hyphen designates a range of IDs.
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example adds VLANs 1, 2, 5 to 6 to the allowed list of Ethernet port 1/e16.
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport access vlan 23
Console(config)# interface ethernet 1/e16
console(config-if)# switchport trunk allowed vlan add 1-2,5-6
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switchport trunk native vlan
The switchport trunk native vlan Interface Configuration mode command defines the native
VLAN when the interface is in trunk mode. Use the no form of this command to return to the
default configuration.
Syntax
•
switchport trunk native vlan
vlan-id
•
no switchport trunk native vlan
•
vlan-id
— Specifies the ID of the native VLAN.
Default Configuration
VID=1.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• The command adds the port as a member in the VLAN. If the port is already a member in the
VLAN (not as a native), it should be first removed from the VLAN.
Example
The following example configures VLAN number 123 as the native VLAN when Ethernet port
1/e16 is in trunk mode.
switchport general allowed vlan
The switchport general allowed vlan Interface Configuration mode command adds or removes
VLANs from a general port.
Syntax
•
switchport general allowed vlan add
vlan-list
[
tagged
|
untagged
]
•
switchport general allowed vlan remove
vlan-list
•
add
vlan-list
— Specifies the list of VLAN IDs to be added. Separate non-consecutive
VLAN IDs with a comma and no spaces. A hyphen designates a range of IDs.
•
remove
vlan-list
— Specifies the list of VLAN IDs to be removed. Separate non-
consecutive VLAN IDs with a comma and no spaces. A hyphen designates a range of IDs.
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport trunk native vlan 123
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•
tagged
— Indicates that the port transmits tagged packets for the VLANs.
•
untagged
— Indicates that the port transmits untagged packets for the VLANs.
Default Configuration
If the port is added to a VLAN without specifying tagged or untagged, the default setting
is tagged.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• This command enables changing the egress rule (e.g., from tagged to untagged) without first
removing the VLAN from the list.
Example
The following example adds VLANs 2, 5, and 6 to the allowed list of Ethernet port 1/e16 .
switchport general pvid
The switchport general pvid Interface Configuration mode command configures the PVID when
the interface is in general mode. Use the no form of this command to return to the default
configuration.
Syntax
•
switchport general pvid
vlan-id
•
no switchport general pvid
•
vlan-id
— Specifies the PVID (Port VLAN ID).
Default Configuration
If the default VLAN is enabled, PVID = 1. Otherwise, PVID=4095.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport general allowed vlan add 2,5-6
tagged
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Example
The following example configures the PVID for Ethernet port 1/e16, when the interface is in
general mode.
switchport general ingress-filtering disable
The switchport general ingress-filtering disable Interface Configuration mode command disables
port ingress filtering. Use the no form of this command to return to the default configuration.
Syntax
•
switchport general ingress-filtering
disable
•
no switchport general ingress-filtering
disable
Default Configuration
Ingress filtering is enabled.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example disables port ingress filtering on Ethernet port 1/e16.
switchport general acceptable-frame-type tagged-only
The switchport general acceptable-frame-type tagged-only Interface Configuration mode
command discards untagged frames at ingress. Use the no form of this command to return to the
default configuration.
Syntax
•
switchport general acceptable-frame-type tagged-only
•
no switchport general acceptable-frame-type tagged-only
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport general pvid 234
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport general ingress-filtering disable
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Default Configuration
All frame types are accepted at ingress.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures Ethernet port 1/e16 to discard untagged frames at ingress.
switchport forbidden vlan
The switchport forbidden vlan Interface Configuration mode command forbids adding specific
VLANs to a port. To return to the default configuration, use the remove parameter for this
command.
Syntax
•
switchport forbidden vlan
{
add
vlan-list
|
remove
vlan-list
}
•
add
vlan-list
— Specifies the list of VLAN IDs to be added. Separate non-consecutive
VLAN IDs with a comma and no spaces. A hyphen designates a range of IDs.
•
remove
vlan-list
— Specifies the list of VLAN IDs to be removed. Separate non-
consecutive VLAN IDs with a comma and no spaces. A hyphen designates a range of IDs.
Default Configuration
All VLANs are allowed.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• This command can be used to prevent GVRP from automatically making the specified VLANs
active on the selected ports.
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport general acceptable-frame-type
tagged-only
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Example
The following example forbids adding VLAN IDs 234 to 256 to Ethernet port 1/e16.
switchport mode
The switchport mode Interface Configuration mode command configures the VLAN membership
mode of a port. Use the no form of this command to reset the mode to the appropriate default for
the device.
Syntax
•
switchport mode
{
access
|
trunk
|
general
|
customer
}
• no switchport mode
•
access
— Untagged layer 2 VLAN interface
•
trunk
— Trunking layer 2 VLAN interface
•
general
— Full 802.1q support VLAN interface
•
customer
— The port is connected to customer equipment. Used when the switch is in a
provider network
Default Configuration
Access mode.
Command Mode
Interface configuration (Ethernet, port-channel) mode.
User Guidelines
•
There are no user Guidelines for this command.
Example
The following example configures the VLAN membership mode of a port. Use the no form of this
command to reset the mode to the appropriate default for the device.
Console(config)# interface ethernet 1/e16
Console(config-if)# switchport forbidden vlan add 234-256
console# config
console(config)# interface ethernet g1 - 1/e1
console(config-if)# switchport mode customer
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switchport customer vlan
Use the
switchport customer vlan
interface configuration command set the port’s VLAN when the
interface is in customer mode. Use the
no
form of this command to revert to default.
Syntax
•
switchport customer vlan
vlan-id
• no switchport customer vlan
vlan-id
—
VLAN ID of the customer
Default Configuration
No VLAN is configured.
Command Mode
Interface configuration (Ethernet, port-channel) mode.
User Guidelines
There are no user Guidelines for this command.
Example
The following example sets the port's VLAN when the interface is in customer mode.
switchport protected
The
switchport protected
Interface Configuration mode command overrides the FDB (Forwarding
Database)decision, and sends all the Unicast, Multicast and Broadcast traffic to an uplink port. Use the
no
form of this command to disable overriding the FDB decision.
Syntax
•
switchport protected
{
ethernet
port
|
port-channel
port-channel-number
}
• no switchport protected
•
port
— Specifies the uplink port (Ethernet port).
•
port-channel-number
— Specifies the uplink port (Port-channel).
Default Configuration
The default configuration is
disabled
.
Console(config)# interface ethernet 1/e5
Console(config-if)# switchport customer vlan vlan-id
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Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
Use this command to override the FDB decision, and forward the packet to the uplink. Please
note that the packet is still subject to all filtering decisions.
The following example overrides the FDB decision, and sends all the Unicast, Multicast and Broadcast
traffic to specified ethernet port.
map protocol protocols-group
The
map protocol protocols-group
VLAN Configuration mode command maps a protocol to a
protocol group. Protocol groups are used for protocol-based VLAN assignment.
Use the no form of
this command to
delete a protocol from a group.
Syntax
•
map protocol
protocol
[
encapsulation
]
protocols-group
group
•
no map protocol
protocol
encapsulation
•
protocol
— The protocol is a 16 or 40 bits protocol number or one of the following names,
ip, ipx
or
arp
. The protocol number is in Hex format (Range: 0600 - FFFF).
•
encapsulation
— One of the following values:
ethernet or protocols
-
group
. If no option is
indicated the default is
ethernet
.
•
group
— Protocol group number. (Range: 1 - 2147483647)
Default Configuration
This command has no default configuration.
Command Mode
VLAN Configuration mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# interface ethernet 1/e5
Console(config-if)# switchport protected ethernet 2/g1
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Example
The following example maps protocol ip-arp to the group named "213".
switchport general map protocols-group vlan
The
switchport general map
protocols-group vlan
Interface Configuration mode command sets a
protocol-based classification rule.
Use the no form of this command to
delete a classification.
Syntax
•
switchport general map
protocols-group
group
vlan
vlan-id
•
no switchport general map
protocols-group
group
•
group
— Group number as defined in the
map protocol protocols-group
command.
(Range: 1 - 2147483647)
•
vlan-id
— Define the VLAN ID in the classifying rule.
Default Configuration
This command has no default configuration.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example sets a protocol-based classification rule of protocol group 1 to VLAN 8.
Console (config)# vlan database
Console (config-vlan)# map protocol ip-arp protocols-group 213
Console (config)# interface ethernet g8
console(config-if)# switchport general map protocols-group 1 vlan 8
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ip internal-usage-vlan
The ip internal-usage-vlan Interface Configuration mode command reserves a VLAN as the
internal usage VLAN of an interface. Use the no form of this command to return to the default
configuration.
Syntax
•
ip internal-usage-vlan
vlan-id
•
no ip internal-usage-vlan
•
vlan-id
— Specifies the ID of the internal usage VLAN.
Default Configuration
The software reserves an unused VLAN as the internal usage VLAN of an interface.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• An internal usage VLAN is required when an IP interface is configured on an Ethernet port or
port-channel.
• This command enables the user to configure the internal usage VLAN of a port. If an internal
usage VLAN is not configured and the user configures an IP interface, an unused VLAN is
selected by the software.
• If the software selected a VLAN for internal use and the user uses that VLAN as a static or
dynamic VLAN, the user should do one of the following:
– Remove the IP interface.
– Create the VLAN and recreate the IP interface.
– Use this command to explicitly configure a different VLAN as the internal usage VLAN.
• This command is not supported under the command
interface range ethernet
.
Example
The following example reserves VLAN 15 as the internal usage VLAN of ethernet port 1/e8.
Console# config
Console(config)# interface ethernet 1/e8
Console(config-if)# ip internal-usage-vlan 15
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show vlan
The show vlan Privileged EXEC mode command displays VLAN information.
Syntax
•
show vlan
[
id
vlan-id
|
name
vlan-name
]
•
vlan-id
— specifies a VLAN ID
•
vlan-name
— Specifies a VLAN name string. (Range: 1 - 32 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays all VLAN information.
show vlan protocols-groups
The
show vlan protocols-groups
Privileged EXEC mode command displays protocols-groups
information.
Console# show vlan
VLAN Name Ports Type Authorization
---- ------- -------- ---- -------------
1 default 1/e1-e2, 2/e1-e4 other Required
10 VLAN0010 1/e3-e4 dynamic Required
11 VLAN0011 1/e1-e2 static Required
20 VLAN0020 1/e3-e4 static Required
21 VLAN0021 static Required
30 VLAN0030 static Required
31 VLAN0031 static Required
91 VLAN0011 1/e1-e2 static Not Required
3978 Guest VLAN 1/e17 guest -
500 VLAN Commands
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Syntax
•
show vlan protocols-groups
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays protocols-groups information.
show vlan internal usage
The show vlan internal usage Privileged EXEC mode command displays a list of VLANs used
internally by the device.
Syntax
•
show vlan internal usage
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
Console# show vlan protocols-groups
Encapsulation Protocol Group Id
------------- -------- --------
ethernet 08 00 213
ethernet 08 06 213
ethernet 81 37 312
ethernet 81 38 312
rfc1042 08 00 213
rfc1042 08 06 213
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User Guidelines
There are no user guidelines for this command.
Example
The following example displays VLANs used internally by the device.
show interfaces switchport
The show interfaces switchport Privileged EXEC mode command displays the switchport
configuration.
Syntax
•
show interfaces switchport {ethernet
interface
|
port-channel
port-channel-number
}
•
interface
— A valid Ethernet port number.
•
port-channel-number
— A valid port-channel number.
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console#
show vlan internal usage
VLAN Usage IP address Reserved
---- --------- ---------- --------
1007 Eth 1/e21 Active No
1008 Eth 1/e22 Inactive Yes
1009 Eth 1/e23 Active Yes
502 VLAN Commands
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Example
The following example displays the switchport configuration for Ethernet port 1/e1.
Console# show interface switchport ethernet 1/e1
Port 1/e1:
VLAN Membership mode: General
Operating parameters:
PVID: 1 (default)
Ingress Filtering: Enabled
Acceptable Frame Type: All
GVRP status: Enabled
Protected: Enabled, Uplink is 1/e9.
Port is member in:
Vlan Name Egress rule Type
---- ------- ----------- -------
1 default untagged System
8 VLAN008 tagged Dynamic
11 VLAN011 tagged Static
19 IPv6 VLAN untagged Static
72 VLAN0072 untagged Static
Static configuration:
PVID: 1 (default)
Ingress Filtering: Enabled
Acceptable Frame Type: All
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Port is statically configured to:
Vlan Name Egress rule
---- ------- -----------
1 default untagged
11 VLAN011 tagged
19 IPv6 VLAN untagged
72 VLAN0072 untagged
Forbidden VLANS:
VLAN Name
---- ----
73 out
Console# show interface switchport ethernet 1/e2
Port 1/e2:
VLAN Membership mode: General
Operating parameters:
PVID: 4095 (discard vlan)
Ingress Filtering: Enabled
Acceptable Frame Type: All
Port is member in:
Vlan Name Egress rule Type
---- ------------ ----------- ------
91 IP Telephony tagged Static
Static configuration:
PVID: 8
Ingress Filtering: Disabled
Acceptable Frame Type: All
504 VLAN Commands
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Port is statically configured to:
Vlan Name Egress rule
---- ------------ -----------
8 VLAN0072 untagged
91 IP Telephony tagged
Forbidden VLANS:
VLAN Name
---- ----
73 out
Port 2/e19
VLAN Membership mode: Private-VLAN Community
Primary VLAN: 2921
Community VLAN: 2922
Console# show interfaces switchport ethernet 2/e19
Port 2/e19:
VLAN Membership mode: Private-VLAN Community
Operating parameters:
PVID: 2922
Ingress Filtering: Enabled
Acceptable Frame Type: Untagged
GVRP status: Disabled
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Port is member in:
Vlan Name Egress rule Type
---- ------------ ----------- ------
2921 Primary A untagged Static
2922 Community A1 untagged Static
Static configuration:
PVID: 2922
Ingress Filtering: Enabled
Acceptable Frame Type: Untagged
GVRP status: Disabled
506 VLAN Commands
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Voice VLAN 507
37
Voice VLAN
voice vlan id
The voice vlan id Global Configuration mode command enables the voice VLAN, and configures
the voice VALN id. To disable the voice VALN, enter the no form of this command.
Syntax
•
voice vlan id
vlan-id
•
no voice vlan id
•
vlan-id
— Specify the voice VLAN ID.
Default Configuration
Voice VLAN is not defined.
Command Mode
Global Configuration mode.
User Guidelines
• The Voice VLAN feature is only active if the specified VLAN is already created. If the Voice
VLAN feature is not active, all the voice VLAN parameters are kept as shadow parameters.
Example
The following example configures the voice VLAN
Console (config)#
voice vlan id
3
508 Voice VLAN
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voice vlan oui-table
The voice vlan oui-table Global Configuration mode command configures the voice OUI table.
Use the no form of this command to return to default.
Syntax
•
voice vlan oui-table {
add mac-address-prefix
[description
text
] | remove
mac-address-prefix
}
• no voice vlan oui-table
• mac-address-prefix — Specify the MAC address prefix to be entered to the list.
•
description
text
— An optional text that describes the OUI.
Default Configuration
Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
OUI Description
00:E0:BB 3COM
00:03:6B Cisco
00:E0:75 Veritel
00:D0:1E Pingtel
00:01:E3 Simens
00:60:B9 NEC/Philips
00:0F:E2 Huawei-3COM
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Example
The following example configures the voice OUI table.
console(config)# voice vlan
oui-table remo 00:e0:bb
console(config)# exit
console# show voice vlan
Aging timeout: 1440 minutes
OUI table
MAC Address - Prefix Description
---------------------- -----------------------
00:01:e3 Siemens_AG_phone________
00:03:6b Cisco_phone_____________
00:09:6e Avaya___________________
00:0f:e2 H3C_Aolynk______________
00:60:b9 Philips_and_NEC_AG_phone
00:d0:1e Pingtel_phone___________
00:e0:75 Polycom/Veritel_phone___
console#
510 Voice VLAN
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voice vlan cos
The voice vlan cos Global Configuration mode command sets the voice VLAN Class Of Service.
Use the no form of this command to return to default.
Syntax
•
voice vlan cos
cos
•
no voice vlan cos
•
cos
— Specify the voice VLAN Class Of Service.
Default Configuration
CoS: 6
Command Mode
Global Configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example configures voice vlan cos.
voice vlan aging-timeout
The voice vlan aging-timeout Global Configuration mode command sets the voice VLAN aging
timeout. Use the no form of this command to return to default.
Syntax
•
voice vlan aging-timeout
minutes
•
no voice vlan aging-timeout
•
minutes
— Specify the aging timeout in minutes. (Range: 1 - 43200 minutes)
Default Configuration
1440.
Command Mode
Global Configuration mode.
Console (config)#
voice vlan cos
4
Voice VLAN 511
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User Guidelines
• Aging starts after bridging aging is expired.
Example
The following example configures vlan aging-timeout.
voice vlan enable
The voice vlan enable Interface Configuration mode command enables automatic voice VLAN
configuration for a port. Use the no form of this command to disable automatic voice VLAN
configuration.
Syntax
•
voice vlan enable
•
no voice vlan enable
Default Configuration
Disabled.
Command Mode
Interface configuration (Ethernet, port-channel) mode.
User Guidelines
• The port is added to the voice VLAN if a packet with a
telephony
MAC address source MAC
address (defined by the voice vlan oui-table global configuration command) is trapped on the
port.
NOTE: The VLAN ID of the packet can be the voice VLAN ID or any other VLAN. The port joins the
voice VLAN as a tagged port. If the time since the last telephony MAC addressed MAC address
ages out exceeds the timeout limit
(
configured by the voice vlan aging-timeout global
configuration command), the port is removed from the voice VLAN.
Example
The following example enables automatic voice VLAN configuration for a port
Console (config)#
voice vlan aging-timeout
2000
console(config-if)#
voice vlan enable
512 Voice VLAN
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voice vlan secure
The voice vlan secure Interface Configuration mode command configures the secure mode for the
voice VLAN. Use the no form of this command to disable the secure mode.
Syntax
•
voice vlan secure
•
no voice vlan secure
Default Configuration
Not secured.
Command Mode
Interface Configuration (Ethernet, port-channel) mode.
User Guidelines
• Use this command to specify that packets classified to the voice VLAN with a
non- telephony
MAC address source MAC address (defined by the
voice vlan oui-table
global configuration
command) are discarded.
• This command is relevant only to ports added to the voice VLAN automatically.
Example
The following example configures the current port in security mode. See User Guidlines.
show voice vlan
The show voice vlan EXEC mode command displays the voice VLAN status.s
Syntax
•
show voice vlan [ ethernet
interface
| port-channel
port-channel-number
]
•
interface
—
Ethernet interface
• port-channel-number —
Port Channel interface
console(config-if)#
voice vlan secure
Voice VLAN 513
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Default Configuration
Command Mode
EXEC mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following example displays the voice VLAN configuration.
OUI Description
0001e3 Siemens_AG_phone
00036b Cisco_phone
000fe2 H3C_Aolynk
0060b9 Philips_and_NEC_AG_
phone
00d01e Pingtel_phone
00e075 Polycom/Veritel_phone
00e0bb 3Com_phone
Console Switch# show voice vlan
Aging timeout: 1440 minutes
OUI table
MAC Address-Prefix Description
00:E0:BB
3COM
00:03:6B
Cisco
00:E0:75
Veritel
00:D0:1E
Pingtel
00:01:E3
Simens
00:60:B9
NEC/Philips
00:0F:E2
Huawei-3COM
514 Voice VLAN
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.
Voice VLAN VLAN ID: 8
CoS: 6
Interface Enabled Secure Activated
1/e1 Yes Yes Yes
1/e2 Yes Yes No
1/e3 Yes Yes Yes
1/e4 Yes Yes Yes
1/e5 No No
1/e6 No No
1/e7 No No
1/e8 No No
1/e9 No No
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Web Server 515
38
Web Server
ip http server
The ip http server Global Configuration mode command enables configuring the device from a
browser. Use the no form of this command to disable this function.
Syntax
•
ip http server
•
no ip http server
Default Configuration
HTTP server is enabled.
Command Mode
Global Configuration mode.
User Guidelines
• Only a user with access level 15 can use the Web server.
Example
The following example enables configuring the device from a browser.
ip http port
The ip http port Global Configuration mode command specifies the TCP port to be used by the
Web browser interface. Use the no form of this command to return to the default configuration.
Syntax
•
ip http port
port-number
•
no ip http port
•
port-number
— Port number for use by the HTTP server. (Range: 1 - 65534)
Console(config)# ip http server
516 Web Server
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Default Configuration
The default port number is 80.
Command Mode
Global Configuration mode.
User Guidelines
• Specifying 0 as the port number effectively disables HTTP access to the device.
Example
The following example configures the http port number to 100.
ip http exec-timeout
The
ip http exec-timeout
global configuration command sets the interval the system waits for user
input before automatically logging off.
Use the no form of this command to
return to default.
Syntax
•
ip http exec-timeout
minutes
[
seconds
]
•
no ip http exec-timeout
Parameters
•
minutes
— Integer that specifies the number of minutes. (Range: 0 - 65535)
•
seconds
— Additional time intervals in seconds. (Range: 0 - 59)
Default Configuration
The default configuration is 10 minutes.
Command Mode
Global Configuration mode.
User Guidelines
• This command also configures the exec-timeout for HTTPS in case the HTTPS timeout was not
set. To specify no timeout, enter the command
ip https exec-timeout 0 0
.
Example
The following example the interval the system waits for user input before automatically logging off to
3 minutes 30 seconds.
Console(config)# ip http port 100
Console (config)# ip http exec-timeout 3 30
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ip https server
The ip https server Global Configuration mode command enables configuring the device from a
secured browser. Use the no form of this command to return to the default configuration.
Syntax
•
ip https server
•
no ip https server
Default Configuration
HTTPS server is disabled.
Command Mode
Global Configuration mode.
User Guidelines
•Use the
ip https exec-timeout
Global Configuration mode command to generate an HTTPS
certificate.
Example
The following example enables configuring the device from a secured browser.
ip https port
The ip https port Global Configuration mode command specifies the TCP port used by the server
to configure the device through the Web browser. Use the no form of this command to return to the
default configuration.
Syntax
•
ip https port
port-number
•
no ip https port
•
port-number
— Port number to be used by the HTTPS server. (Range: 1 - 65534)
Default Configuration
The default port number is 443.
Command Mode
Global Configuration mode.
console(config)# ip https server
518 Web Server
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User Guidelines
• Specifying 0 as the port number effectively disables HTTPS access to the device.
Example
The following example configures the https port number to 100.
ip https exec-timeout
The
ip https exec-timeout
Global Configuration command sets the interval the system waits for user
input before automatically logging off.
Use the no form of this command to
return to default.
Syntax
•
ip https exec-timeout
minutes
[
seconds
]
•
no ip https exec-timeout
Parameters
•
minutes
— Integer that specifies the number of minutes. (Range: 0 - 65535)
•
seconds
— Additional time intervals in seconds. (Range: 0 - 59)
Default Configuration
The default configuration is the exec-timeout that was set by the
ip http exec-timeout
command.
Command Mode
Global Configuration mode.
User Guidelines
• This command also configures the exec-timeout for HTTPS in case the HTTPS timeout was not
set. To specify no timeout, enter the command
ip https exec-timeout 0 0
.
Example
The following example the interval the system waits for user input before automatically logging off to
3 minutes 30 seconds.
Console(config)# ip https port 100
Console (config)# ip https exec-timeout 3 30
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crypto certificate generate
The crypto certificate generate Global Configuration mode command generates a self-signed
HTTPS certificate.
Syntax
•
crypto certificate [
number
] generate key-generate [
length
] [passphrase
string
] [cn
common-
name
][ou
organization-unit
][or
organization
] [loc
location
] [st
state
] [cu
country
] [duration
days
]
•
number
— Specifies the certificate number. (Range: 1 - 2)
•
key-generate
— Regenerate the SSL RSA key.
•
length
— Specifies the SSL RSA key length. (Range: 512 - 2048)
•
passphrase
string
— Passphrase that is used for exporting the certificate in PKCS12 file
format. If unspecified the certificate is not exportable. (Range: 512 - 2048)
•
cn
common- name
— Specifies the fully qualified URL or IP address of the device.
(Range: 1 - 64)
•
or
organization
— Specifies the organization name. (Range: 1 - 64)
•
ou
organization-unit
— Specifies the organization-unit or department name. (Range: 1 - 64)
•
loc
location
— Specifies the location or city name. (Range: 1 - 64)
•
st
state
— Specifies the state or province name. (Range: 1 - 64)
•
cu
country
— Specifies the country name. (Range: 2)
•
duration
days
— Specifies number of days certification is valid. (Range: 30 - 3650)
Default Configuration
The Certificate and SSL’s RSA key pairs do not exist.
If no certificate number is specified, the default certificate number is 1.
If no RSA key length is specified, the default length is 1024.
If no URL or IP address is specified, the default common name is the lowest IP address of the
device at the time that the certificate is generated.
If the number of days is not specified, the default period of time that the certification is valid is
365 days.
Command Mode
Global Configuration mode.
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User Guidelines
• The command is not saved in the device configuration; however, the certificate and keys
generated by this command are saved in the private configuration (which is never displayed to
the user or backed up to another device).
• Use this command to generate a self-signed certificate for the device.
• If the RSA keys do not exist, parameter
key-generate
must be used.
• When you export an RSA key pair to a PKCS#12 file, the RSA key pair is as secure as the
passphrase. Therefore, keep the passphrase secure.
Example
The following example regenerates an HTTPS certificate.
crypto certificate request
The crypto certificate request Privileged EXEC mode command generates and displays certificate
requests for HTTPS.
Syntax
•
crypto certificate
number
request
[
cn
common- name
]
[ou
organization-unit
][or
organization
]
[loc
location
] [st
state
] [cu
country
]
•
number
— Specifies the certificate number. (Range: 1 - 2)
•
cn
common- name
— Specifies the fully qualified URL or IP address of the device.
(Range: 1 - 64)
•
ou
organization-unit
— Specifies the organization-unit or department name. (Range: 1 - 64)
•
or
organization
— Specifies the organization name. (Range: 1 - 64)
•
loc
location
— Specifies the location or city name. (Range: 1 - 64)
•
st
state
— Specifies the state or province name. (Range: 1 - 64)
•
cu
country
— Specifies the country name. (Range: 1 - 2)
Default Configuration
There is no default configuration for this command.
Command Mode
Privileged EXEC mode.
Console(config)# crypto certificate 1 generate key-generate
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User Guidelines
• Use this command to export a certificate request to a Certification Authority. The certificate
request is generated in Base64-encoded X.509 format.
• Before generating a certificate request you must first generate a self-signed certificate using the
ip https exec-timeout
Global Configuration mode command. Be aware that you have to reenter
the certificate fields.
• After receiving the certificate from the Certification Authority, use the
crypto certificate import
Global Configuration mode command to import the certificate into the device. This certificate
replaces the self-signed certificate.
Examples
The following example generates and displays a certificate request for HTTPS.
crypto certificate import
The crypto certificate import Global Configuration mode command imports a certificate signed
by the Certification Authority for HTTPS.
Console# crypto certificate 1 request
-----BEGIN CERTIFICATE REQUEST-----
MIwTCCASoCAQAwYjELMAkGA1UEBhMCUFAxCzAJBgNVBAgTAkNDMQswCQYDVQQH
EwRDEMMAoGA1UEChMDZGxkMQwwCgYDVQQLEwNkbGQxCzAJBgNVBAMTAmxkMRAw
DgKoZIhvcNAQkBFgFsMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8ecwQ
HdML0831i0fh/F0MV/Kib6Sz5p+3nUUenbfHp/igVPmFM+1nbqTDekb2ymCu6K
aKvEbVLF9F2LmM7VPjDBb9bb4jnxkvwW/wzDLvW2rsy5NPmH1QVl+8Ubx3GyCm
/oW93BSOFwxwEsP58kf+sPYPy+/8wwmoNtDwIDAQABoB8wHQYJKoZIhvcNAQkH
MRDjEyMwgICCAgICAICAgIMA0GCSqGSIb3DQEBBAUAA4GBAGb8UgIx7rB05m+2
m5ZZPhIwl8ARSPXwhVdJexFjbnmvcacqjPG8pIiRV6LkxryGF2bVU3jKEipcZa
g+uNpyTkDt3ZVU72pjz/fa8TF0n3
-----END CERTIFICATE REQUEST-----
CN= router.gm.com
0= General Motors
C= US
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Syntax
•
crypto certificate
number
import
•
number
— Specifies the certificate number. (Range: 1 - 2)
Default Configuration
This command has no default configuration.
Command Mode
Global Configuration mode.
User Guidelines
• Use this command to enter an external certificate (signed by Certification Authority) to the
device. To end the session, enter an empty line.
• The imported certificate must be based on a certificate request created by the
crypto certificate
request
Privileged EXEC mode command.
• If the public key found in the certificate does not match the device's SSL RSA key, the command
fails.
• This command is not saved in the device configuration; however, the certificate imported by this
command is saved in the private configuration (which is never displayed to the user or backed up
to another device).
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Examples
The following example imports a certificate signed by Certification Authority for HTTPS.
Console(config)# crypto certificate 1 import
-----BEGIN CERTIFICATE-----
dHmUgUm9vdCBDZXJ0aWZpZXIwXDANBgkqhkiG9w0BAQEFAANLADBIAkEAp4HS
nnH/xQSGA2ffkRBwU2XIxb7n8VPsTm1xyJ1t11a1GaqchfMqqe0kmfhcoHSWr
yf1FpD0MWOTgDAwIDAQABo4IBojCCAZ4wEwYJKwYBBAGCNxQCBAYeBABDAEEw
CwR0PBAQDAgFGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFAf4MT9BRD47
ZvKBAEL9Ggp+6MIIBNgYDVR0fBIIBLTCCASkwgdKggc+ggcyGgclsZGFwOi8v
L0VByb3h5JTIwU29mdHdhcmUlMjBSb290JTIwQ2VydGlmaWVyLENOPXNlcnZl
-----END CERTIFICATE-----
Certificate imported successfully.
Issued to: router.gm.com
Issued by: www.verisign.com
Valid from: Jan 1 02:44:50 2003 GMT
Valid to: Dec 31 02:44:50 2004 GMT
Subject: CN= router.gm.com, 0= General Motors, C= US
Finger print: DC789788 DC88A988 127897BC BB789788
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ip https certificate
The ip https certificate Global Configuration mode command configures the active certificate for
HTTPS. Use the no form of this command to return to the default configuration.
Syntax
•
ip https certificate
number
•
no ip https certificate
•
number
— Specifies the certificate number. (Range: 1 - 2)
Default Configuration
Certificate number 1.
Command Mode
Global Configuration mode.
User Guidelines
•The
ip https exec-timeout
command should be used to generate HTTPS certificates.
Example
The following example configures the active certificate for HTTPS.
show crypto certificate mycertificate
The show crypto certificate mycertificate Privileged EXEC mode command displays the SSH
certificates of the device.
Syntax
•
show crypto certificate mycertificate [
number
]
•
number
— Specifies the certificate number. (Range: 1 - 2)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# ip https certificate 1
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Example
The following example displays the certificate.
show ip http
The show ip http Privileged EXEC mode command displays the HTTP server configuration.
Syntax
•
show ip http
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show crypto certificate mycertificate 1
-----BEGIN CERTIFICATE-----
dHmUgUm9vdCBDZXJ0aWZpZXIwXDANBgkqhkiG9w0BAQEFAANLADBIAkEAp4HS
nnH/xQSGA2ffkRBwU2XIxb7n8VPsTm1xyJ1t11a1GaqchfMqqe0kmfhcoHSWr
yf1FpD0MWOTgDAwIDAQABo4IBojCCAZ4wEwYJKwYBBAGCNxQCBAYeBABDAEEw
CwR0PBAQDAgFGMA8GA1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFAf4MT9BRD47
ZvKBAEL9Ggp+6MIIBNgYDVR0fBIIBLTCCASkwgdKggc+ggcyGgclsZGFwOi8v
L0VByb3h5JTIwU29mdHdhcmUlMjBSb290JTIwQ2VydGlmaWVyLENOPXNlcnZl
-----END CERTIFICATE-----
Issued by: www.verisign.com
Valid from: Jan 1 02:44:50 2003 GMT
Valid to: Dec 31 02:44:50 2004 GMT
Subject: CN= router.gm.com, 0= General Motors, C= US
Finger print: DC789788 DC88A988 127897BC BB789788
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Example
The following example displays the HTTP server configuration.
show ip https
The show ip https Privileged EXEC mode command displays the HTTPS server configuration.
Syntax
•
show ip https
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show ip http
HTTP server enabled. Port: 80
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Example
The following example displays the HTTP server configuration.
Console# show ip https
HTTPS server enabled. Port: 443
Certificate 1 is active
Issued by: www.verisign.com
Valid from: Jan 1 02:44:50 2004 GMT
Valid to: Dec 31 02:44:50 2005 GMT
Subject: CN= router.gm.com, 0= General Motors, C= US
Finger print: DC789788 DC88A988 127897BC BB789788
Certificate 2 is inactive
Valid From: Jan 1 02:44:50 2004 GMT
Valid to: Dec 31 02:44:50 2005 GMT
Subject: CN= router.gm.com, 0= General Motors, C= US
Finger print: 1873B936 88DC3411 BC8932EF 782134BA
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802.1x Commands 529
39
802.1x Commands
aaa authentication dot1x
The aaa authentication dot1x Global Configuration mode command specifies one or more
authentication, authorization, and accounting (AAA) methods for use on interfaces running IEEE
802.1X. Use the no form of this command to return to the default configuration.
Syntax
•
aaa authentication dot1x default
method1
[
method2
...]
•
no aaa authentication dot1x default
•
method1
[
method2
...] — At least one from the following table:
Default Configuration
No authentication method is defined.
Command Mode
Global Configuration mode.
User Guidelines
• Additional methods of authentication are used only if the previous method returns an error and
not if the request for authentication is denied. To ensure that authentication succeeds even if all
methods return an error, specify
none
as the final method in the command line.
• The RADIUS server must support MD-5 challenge and EAP type frames.
• The device accepts EAP frames with a priority tag and also accepts EAP packets with
VLAN tags.
Keyword Description
Radius Uses the list of all RADIUS servers for
authentication
None Uses no authentication
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Examples
The following example uses the aaa authentication dot1x default command with no
authentication.
dot1x system-auth-control
The dot1x system-auth-control Global Configuration mode command enables 802.1x globally.
Use the no form of this command to return to the default configuration.
Syntax
•
dot1x system-auth-control
•
no dot1x system-auth-control
Default Configuration
802.1x is disabled globally.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example enables 802.1x globally.
dot1x port-control
The dot1x port-control Interface Configuration mode command enables manually controlling the
authorization state of the port. Use the no form of this command to return to the default
configuration.
Console(config)# aaa authentication dot1x default none
Console(config)# dot1x system-auth-control
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Syntax
•
dot1x port-control
{
auto
|
force-authorized
|
force-unauthorized
}
•
no dot1x port-control
•
auto —
Enables 802.1X authentication on the interface and causes the port to transition to
the authorized or unauthorized state based on the 802.1X authentication exchange between
the port and the client.
•
force-authorized —
Disables 802.1X authentication on the interface and causes the port to
transition to the authorized state without any authentication exchange required. The port
resends and receives normal traffic without 802.1X-based authentication of the client.
•
force-unauthorized —
Denies all access through this interface by forcing the port to
transition to the unauthorized state and ignoring all attempts by the client to authenticate.
The device cannot provide authentication services to the client through the interface.
Default Configuration
Port is in the force-authorized state.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• It is recommended to disable Spanning Tree or to enable spanning-tree PortFast mode on 802.1x
edge ports (ports in
auto
state that are connected to end stations), in order to get immediately to
the forwarding state after successful authentication.
Examples
The following example enables 802.1X authentication on Ethernet port 1/e16.
dot1x re-authentication
The dot1x re-authentication Interface Configuration mode command enables periodic
re-authentication of the client. Use the no form of this command to return to the default
configuration.
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x port-control auto
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Syntax
•
dot1x re-authentication
•
no dot1x re-authentication
Default Configuration
Periodic re-authentication is disabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following example enables periodic re-authentication of the client.
dot1x timeout re-authperiod
The dot1x timeout re-authperiod Interface Configuration mode command sets the number of
seconds between re-authentication attempts. Use the no form of this command to return to the
default configuration.
Syntax
•
dot1x timeout re-authperiod
seconds
•
no dot1x timeout re-authperiod
•
seconds —
Number of seconds between re-authentication attempts. (Range: 300 -
4294967295)
Default Configuration
Re-authentication period is 3600 seconds.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
There are no user guidelines for this command.
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x re-authentication
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Examples
The following example sets the number of seconds between re-authentication attempts, to 300.
dot1x re-authenticate
The dot1x re-authenticate Privileged EXEC mode command manually initiates a re-
authentication of all 802.1X-enabled ports or the specified 802.1X-enabled port.
Syntax
•
dot1x re-authenticate
[
ethernet
interface
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Examples
The following command manually initiates a re-authentication of 802.1X-enabled Ethernet port
1/e16.
dot1x timeout quiet-period
The dot1x timeout quiet-period Interface Configuration mode command sets the number of
seconds that the device remains in the quiet state following a failed authentication exchange (for
example, the client provided an invalid password). Use the no form of this command to return to
the default configuration.
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x timeout re-authperiod 300
Console# dot1x re-authenticate ethernet 1/e16
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Syntax
•
dot1x timeout quiet-period
seconds
no dot1x timeout quiet-period
•
seconds —
Specifies the time in seconds that the device remains in the quiet state following
a failed authentication exchange with the client. (Range: 0 - 65535 seconds)
Default Configuration
Quiet period is 60 seconds.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• During the quiet period, the device does not accept or initiate authentication requests.
• The default value of this command should only be changed to adjust for unusual circumstances,
such as unreliable links or specific behavioral problems with certain clients and authentication
servers.
• To provide a faster response time to the user, a smaller number than the default value should be
entered.
Examples
The following example sets the number of seconds that the device remains in the quiet state
following a failed authentication exchange to 3600.
dot1x timeout tx-period
The dot1x timeout tx-period Interface Configuration mode command sets the number of seconds
that the device waits for a response to an Extensible Authentication Protocol (EAP)-
request/identity frame from the client before resending the request. Use the no form of this
command to return to the default configuration.
Syntax
•
dot1x timeout tx-period
seconds
•
no dot1x timeout tx-period
•
seconds —
Specifies the time in seconds that the device waits for a response to an EAP-
request/identity frame from the client before resending the request. (Range: 30 - 65535
seconds)
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x timeout quiet-period 3600
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Default Configuration
Timeout period is 30 seconds.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• The default value of this command should be changed only to adjust for unusual circumstances,
such as unreliable links or specific behavioral problems with certain clients. and authentication
servers
Examples
The following command sets the number of seconds that the device waits for a response to an EAP-
request/identity frame, to 3600 seconds.
dot1x max-req
The dot1x max-req Interface Configuration mode command sets the maximum number of times
that the device sends an Extensible Authentication Protocol (EAP)-request/identity frame
(assuming that no response is received) to the client, before restarting the authentication process.
Use the no form of this command to return to the default configuration.
Syntax
•
dot1x max-req
count
•
no dot1x max-req
•
count —
Number of times that the device sends an EAP-request/identity frame before
restarting the authentication process. (Range: 1 - 10)
Default Configuration
The default number of times is 2.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• The default value of this command should be changed only to adjust for unusual circumstances,
such as unreliable links or specific behavioral problems with certain clients. and authentication
servers
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x timeout tx-period 3600
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Examples
The following example sets the number of times that the device sends an EAP-request/identity
frame to 6 .
dot1x timeout supp-timeout
The dot1x timeout supp-timeout Interface Configuration mode command sets the time for the
retransmission of an Extensible Authentication Protocol (EAP)-request frame to the client. Use the
no form of this command to return to the default configuration.
Syntax
•
dot1x timeout supp-timeout
seconds
•
no dot1x timeout supp-timeout
•
seconds —
Time in seconds that the device waits for a response to an EAP-request frame
from the client before resending the request. (Range: 1- 65535 seconds)
Default Configuration
Default timeout period is 30 seconds.
Command Mode
Interface configuration (Ethernet) mode.
User Guidelines
• The default value of this command should be changed only to adjust for unusual circumstances,
such as unreliable links or specific behavioral problems with certain clients. and authentication
servers
Examples
The following example sets the timeout period before retransmitting an EAP-request frame to the
client to 3600 seconds.
dot1x timeout server-timeout
The dot1x timeout server-timeout Interface Configuration mode command sets the time that the
device waits for a response from the authentication server. Use the no form of this command to
return to the default configuration.
Console(config)# interface ethernet 1/e16
Console(config-if)# dot1x max-req 6
Console(config-if)# dot1x timeout supp-timeout 3600
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Syntax
•
dot1x timeout server-timeout
seconds
•
no dot1x timeout server-timeout
•
seconds —
Time in seconds that the device waits for a response from the authentication
server. (Range: 1 - 65535 seconds)
Default Configuration
The timeout period is 30 seconds.
Command Mode
Interface configuration (Ethernet) mode.
User Guidelines
• The actual timeout can be determined by comparing the
dot1x timeout server-timeout
value
and the result of multiplying the
radius-server retransmit
value with the
radius-server
timeout
value and selecting the lower of the two values.
Example
The following example sets the time for the retransmission of packets to the authentication server
to 3600 seconds.
dot1x send-async-request-id
Use the dot1x send-async-request-id interface configuration command to enable 802.1x switch to
request asynchronously the responses from supplicants on port. This request causes the stations,
which don’t start 802.1x authentication automatically, to start it in response to Switch massage. In
case enabled the massage would be sent according to dot1x timeout tx-period. Use the no form of
this command to return to the default setting.
dot1x send-async-request-id
no dot1x send-async-request-id
Syntax Description
This command has no arguments or keywords
Parameters range
None
Default
no
by default
Console(config-if)# dot1x timeout server-timeout 3600
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Command Modes
Interface configuration (Ethernet)
Usage Guidelines
The command causes 802.1x switch to send Extensible Authentication Protocol (EAP)-
request/identity frame from the authenticator (switch) each tx-period automatically. It is
recommended to activate this command only in case there is at least one device with not full 802.1x
functionality connected to port (for example Windows EX with Service Pack 2). In addition it is
recommended to increase dot1x timeout tx-period to reduce the overhead during the processing of
supplicant responses on switch.
Examples
show dot1x
The show dot1x Privileged EXEC mode command displays the 802.1X status of the device or
specified interface.
Syntax
•
show dot1x
[
ethernet
interface
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console(config-if)# dot1x send-async-request-id
Console(config-if)#
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Example
The following example displays the status of 802.1X-enabled Ethernet ports.
Console# show dot1x
802.1x is enabled
Port Admin Mode Oper Mode Reauth
Control
Reauth
Period
Username
---- ---------- --------- ------- ------ --------
1/e1 Auto Authorized Ena 3600 Bob
1/e2 Auto Authorized Ena 3600 John
1/e3 Auto Unauthorized Ena 3600 Clark
1/e4 Force-auth Authorized Dis 3600 n/a
1/e5 Force-auth Unauthorized* Dis 3600 n/a
* Port is down or not present.
Console# show dot1x ethernet 1/e3
802.1x is enabled.
Port Admin Mode Oper Mode Reauth
Control
Reauth
Period
Username
---- ---------- --------- ------- ------ --------
1/e3 Auto Unauthorized Ena 3600 Clark
Quiet period: 60 Seconds
Tx period:30 Seconds
Max req: 2
Supplicant timeout: 30 Seconds
Server timeout: 30 Seconds
Session Time (HH:MM:SS): 08:19:17
MAC Address: 00:08:78:32:98:78
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The following table describes significant fields shown above:
Authentication Method: Remote
Termination Cause: Supplicant logoff
Authenticator State Machine
State: HELD
Backend State Machine
State: IDLE
Authentication success: 9
Authentication fails: 1
Field Description
Port The port number.
Admin mode The port admin mode. Possible values: Force-auth, Force-unauth, Auto.
Oper mode The port oper mode. Possible values: Authorized, Unauthorized or Down.
Reauth Control Reauthentication control.
Reauth Period Reauthentication period.
Username The username representing the identity of the Supplicant. This field shows
the username in case the port control is auto. If the port is Authorized, it
shows the username of the current user. If the port is unauthorized it shows
the last user that was authenticated successfully.
Quiet period The number of seconds that the device remains in the quiet state following a
failed authentication exchange (for example, the client provided an invalid
password).
Tx period The number of seconds that the device waits for a response to an Extensible
Authentication Protocol (EAP)-request/identity frame from the client before
resending the request.
Max req The maximum number of times that the device sends an Extensible
Authentication Protocol (EAP)-request frame (assuming that no response is
received) to the client before restarting the authentication process.
Supplicant timeout Time in seconds the switch waits for a response to an EAP-request frame
from the client before resending the request.
Server timeout Time in seconds the switch waits for a response from the authentication
server before resending the request.
Session Time The amount of time the user is logged in.
MAC address The supplicant MAC address.
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show dot1x users
The show dot1x users Privileged EXEC mode command displays active 802.1X authenticated
users for the device.
Syntax
•
show dot1x users
[
username
username
]
•
username —
Supplicant
username. (Range: 1 - 160 characters)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example displays 802.1X users.
Authentication Method The authentication method used to establish the session.
Termination Cause The reason for the session termination.
State The current value of the Authenticator PAE state machine and of the Backend
state machine.
Authentication success The number of times the state machine received a Success message from the
Authentication Server.
Authentication fails The number of times the state machine received a Failure message from the
Authentication Server.
Console# show dot1x users
Port Username Session Time Auth Method MAC Address
----- -------- ------------ ----------- --------------
1/e1 Bob 1d:03:08.58 Remote 0008:3b79:8787
1/e2 John 08:19:17 None 0008:3b89:3127
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The following table describes significant fields shown above:
show dot1x statistics
The show dot1x statistics Privileged EXEC mode command displays 802.1X statistics for the
specified interface.
Syntax
•
show dot1x statistics ethernet
interface
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
Console# show dot1x users username Bob
Username: Bob
Port Username Session Time Auth Method MAC Address
----- -------- ------------ ----------- --------------
1/e1 Bob 1d:03:08.58 Remote 0008:3b79:8787
Field Description
Port The port number.
Username The username representing the identity of the Supplicant.
Session Time The period of time the Supplicant is connected to the system.
Authentication Method Authentication method used by the Supplicant to open the session.
MAC Address MAC address of the Supplicant.
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Examples
The following example displays 802.1X statistics for the specified interface.
The following table describes the significant fields shown in the display:
Console# show dot1x statistics ethernet 1/e1
EapolFramesRx: 11
EapolFramesTx: 12
EapolStartFramesRx: 12
EapolLogoffFramesRx: 1
EapolRespIdFramesRx: 3
EapolRespFramesRx: 6
EapolReqIdFramesTx: 3
EapolReqFramesTx: 6
InvalidEapolFramesRx: 0
EapLengthErrorFramesRx: 0
LastEapolFrameVersion: 1
LastEapolFrameSource: 00:08:78:32:98:78
Field Description
EapolFramesRx The number of valid EAPOL frames of any type that have been received
by this Authenticator.
EapolFramesTx The number of EAPOL frames of any type that have been transmitted by
this Authenticator.
EapolStartFramesRx The number of EAPOL Start frames that have been received by this
Authenticator.
EapolLogoffFramesRx The number of EAPOL Logoff frames that have been received by this
Authenticator.
EapolRespIdFramesRx The number of EAP Resp/Id frames that have been received by this
Authenticator.
EapolRespFramesRx The number of valid EAP Response frames (other than Resp/Id frames)
that have been received by this Authenticator.
EapolReqIdFramesTx The number of EAP Req/Id frames that have been transmitted by this
Authenticator.
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ADVANCED FEATURES
dot1x auth-not-req
The dot1x auth-not-req VLAN Configuration mode command enables unauthorized devices
access to the VLAN. Use the no form of this command to disable access to the VLAN.
Syntax
•
dot1x auth-not-req
•
no dot1x auth-not-req
Default Configuration
Access is enabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• An access port cannot be a member in an unauthenticated VLAN.
• The native VLAN of a trunk port cannot be an unauthenticated VLAN.
• For a general port, the PVID can be an unauthenticated VLAN (although only tagged packets are
accepted in the unauthorized state.)
Examples
The following example enables access to the VLAN to unauthorized devices.
EapolReqFramesTx The number of EAP Request frames (other than Rq/Id frames) that have
been transmitted by this Authenticator.
InvalidEapolFramesRx The number of EAPOL frames that have been received by this
Authenticator in which the frame type is not recognized.
EapLengthErrorFramesRx The number of EAPOL frames that have been received by this
Authenticator in which the Packet Body Length field is invalid.
LastEapolFrameVersion The protocol version number carried in the most recently received EAPOL
frame.
LastEapolFrameSource The source MAC address carried in the most recently received EAPOL
frame.
Console(config-if)# dot1x auth-not-req
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dot1x multiple-hosts
The dot1x multiple-hosts Interface Configuration mode command enables multiple hosts (clients)
on an 802.1X-authorized port, where the authorization state of the port is set to auto. Use the no
form of this command to return to the default configuration.
Syntax
•
dot1x multiple-hosts
•
no dot1x multiple-hosts
Default Configuration
Multiple hosts are disabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• This command enables the attachment of multiple clients to a single 802.1X-enabled port. In this
mode, only one of the attached hosts must be successfully authorized for all hosts to be granted
network access. If the port becomes unauthorized, all attached clients are denied access to the
network.
• For unauthenticated VLANs, multiple hosts are always enabled.
• Multiple-hosts must be enabled to enable port security on the port.
Examples
The following command enables multiple hosts (clients) on an 802.1X-authorized port.
dot1x single-host-violation
The dot1x single-host-violation Interface Configuration mode command configures the action to
be taken, when a station whose MAC address is not the supplicant MAC address, attempts to access
the interface. Use the no form of this command to return to default.
Syntax
•
dot1x single-host-violation
{
forward
|
discard |
discard-shutdown
} [
trap
seconds
]
•
no port dot1x single-host-violation
•
forward
— Forwards frames with source addresses that are not the supplicant address, but
does not learn the source addresses.
•
discard
— Discards frames with source addresses that are not the supplicant address.
Console(config-if)# dot1x multiple-hosts
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•
discard-shutdown
— Discards frames with source addresses that are not the supplicant
address. The port is also shut down.
•
trap
— Indicates that SNMP traps are sent.
•
seconds
— Specifies the minimum amount of time in seconds between consecutive traps.
(Range: 1 -
1000000
)
Default Configuration
Frames with source addresses that are not the supplicant address are discarded.
No traps are sent.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• The command is relevant when multiple hosts is disabled and the user has been successfully
authenticated.
Examples
The following example forwards frames with source addresses that are not the supplicant address
and sends consecutive traps at intervals of 100 seconds.
dot1x guest-vlan
The dot1x guest-vlan Interface Configuration mode command defines a guest VLAN. Use the no
form of this command to return to the default configuration.
Syntax
• dot1x guest-vlan
• no dot1x guest-vlan
Default Configuration
No VLAN is defined as a guest VLAN.
Command Mode
Interface Configuration (VLAN) mode.
Console(config-if)# dot1x single-host-violation forward trap 100
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User Guidelines
•Use the
dot1x guest-vlan enable
Interface Configuration mode command to enable
unauthorized users on an interface to access the guest VLAN.
• If the guest VLAN is defined and enabled, the port automatically joins the guest VLAN when the
port is unauthorized and leaves it when the port becomes authorized.
Example
The following example defines VLAN 2 as a guest VLAN.
dot1x guest-vlan enable
The dot1x vlans guest-vlan enable Interface Configuration mode command enables unauthorized
users on the interface access to the Guest VLAN. Use the no form of this command to disable
access
Syntax
• dot1x guest-vlan enable
• no dot1x guest-vlan enable
Default Configuration
Disabled.
Command Mode
Interface Configuration (Ethernet) mode.
User Guidelines
• A device can have only one global guest VLAN. The guest VLAN is defined using the
dot1x
guest-vlan
Interface Configuration mode command.
Console#
Console# configure
Console(config)# vlan database
Console(config-vlan)# vlan 2
Console(config-vlan)# exit
Console(config)# interface vlan 2
Console(config-if)# dot1x guest-vlan
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Example
The following example enables unauthorized users on Ethernet port 1/e1 to access the guest VLAN.
dot1x mac-authentication
The dot1x mac-authentication Interface Configuration mode command enables authentication
based on the station’s MAC address. Use the no form of this command to disable MAC
authentication.
Syntax
•
dot1x mac-authentication
{
mac-only
|
mac-and-802.1x
}
• no dot1x mac-authentication
•
mac-only
— Enable authentication based on the station’s MAC address only. 802.1X frames
are ignored.
•
mac-and-802.1x
— Enable 802.1X authentication and MAC address authentication on the
interface.
Default Configuration
Disabled.
Command Mode
Interface configuration (Ethernet) mode
User Guidelines
• Guest VLAN must be enabled, when MAC authentication is enabled.
• Static MAC addresses cannot be aurhorized. Do not change authenticated MAC address to static
address.
• It is not recommended to delete authenticated MAC addresses.
• Reauthentication must be enabled when working in this mode.
Example
The following command enables authentication based on the station’s MAC address.
Console# configure
Console(config)# interface ethernet 1/e1
Console(config-if)# dot1x guest-vlan enable
console config-if(Config)# dot1x mac-authentication mac-only
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dot1x traps mac-authentication failure
The dot1x traps mac-authentication failure Global Configuration mode command enables
sending traps when a MAC address was failed in authentication of the 802.1X MAC authentication
access control. Use the no form of this command to disable the traps.
Syntax
• dot1x traps mac-authentication failure
• no dot1x traps mac-authentication failure
Default Configuration
This command has no default configuration.
Command Mode
Global configuration mode.
User Guidelines
• There are no user guidelines for this command.
Example
The following command enables sending traps when a MAC address was failed in authentication of
the 802.1X MAC authentication access control.
dot1x radius-attributes vlan
The dot1x radius-attributes vlan Interface Configuration mode command enables user-based
VLAN assignment. Use the no form of this command to disable user-based VLAN assignment.
Syntax
• dot1x radius-attributes vlan
• no dot1x radius-attributes vlan
Default Configuration
Disabled.
Command Mode
Interface configuration (Ethernet) mode
console config-if(Config)# dot1x traps mac-authentication failure
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User Guidelines
•The
dot1x radius-attributes vlan
command configuration is allowed only when the port is
Forced Authorized.
• RADIUS attributes are supported only in the multiple sessions mode (multiple hosts with
authentication).
• When RADIUS attributes are enabled and the RADIUS Accept message does not contain as an
attribute the supplicant’s VLAN, then the supplicant is rejected.
• Packets to the supplicant are sent untagged.
• After successful authentication the port remains member in the unauthenticated VLANs and in
the Guest VLAN. Other static VLAN configuration is not applied on the port.
• If the supplicant VLAN does not exist on the switch, the supplicant is rejected.
Examples
The following command enables user-based VLAN assignment.
show dot1x advanced
The show dot1x advanced Privileged EXEC mode command displays 802.1X advanced features
for the device or specified interface.
Syntax
•
show dot1x advanced
[
ethernet
interface
]
•
interface
— Valid Ethernet port. (Full syntax:
unit/port
)
Default Configuration
This command has no default configuration.
Command Mode
Privileged EXEC mode.
User Guidelines
There are no user guidelines for this command.
console config-if(Config)# dot1x radius-attributes vlan
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Examples
The following example displays 802.1X advanced features for the switch.
Console# show dot1x advanced
Guest VLAN: 100
Guest VLAN timeout
Unauthenticated VLANs:
Interface Multiple
Hosts
Guest VLAN MAC
Authentication
Assignment Async-
reqId
----- ------- ---- --------------
-
----------
g1 Authenticate Enabled Disabled Enabled True
g2 Authenticate Disabled Disabled Disabled False
g3 Authenticate Disabled Disabled Disabled False
g4 Authenticate Disabled Disabled Disabled False
g5 Authenticate Disabled Disabled Disabled False
g6 Authenticate Disabled Disabled Disabled False
g7 Authenticate Disabled Disabled Disabled False
g8 Authenticate Disabled Disabled Disabled False
g9 Authenticate Disabled Disabled Disabled False
g10 Authenticate Disabled Disabled Disabled False
g11 Authenticate Disabled Disabled Disabled False
g12 Authenticate Disabled Disabled Disabled False
g13 Authenticate Enabled Disabled Enabled False
g14 Authenticate Disabled Disabled Disabled False
g15 Authenticate Disabled Disabled Disabled False
g16 Authenticate Disabled Disabled Disabled False
g17 Authenticate Disabled Disabled
g18 Authenticate Disabled Disabled
g19 Authenticate Disabled Disabled
g20 Authenticate Disabled Disabled
g21 Authenticate Disabled Disabled
g22 Authenticate Disabled Disabled

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