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Wi-Fi Array

270 The Command Line Interface

off Disable a filter list.

FORMAT:

filter off

on Enable a filter list.

FORMAT:

filter on

reset Delete all protocol filters and filter lists.

FORMAT:

filter reset

Command Description

Wi-Fi Array

The Command Line Interface 271

group

The group command [Xirrus_Wi-Fi_Array(config)# group] is used to create and

configure user groups. User groups allow administrators to assign specific

network parameters to users through RADIUS privileges rather than having to

map users to a specific SSID. Groups provide flexible control over user privileges

without the need to create large numbers of SSIDs. For more information, see

“Groups” on page 196.

hostname

The hostname command [Xirrus_Wi-Fi_Array(config)# hostname] is used to

change the hostname used by the Array.

Command Description

add Create a new user group.

FORMAT:

group add [group-name]

del Delete a user group.

FORMAT:

group del [group-name]

edit Set parameters values for a group.

FORMAT:

group edit [group-name]

reset Reset the group.

FORMAT:

group reset

Command Description

hostname Change the hostname of the Array.

FORMAT:

hostname [name]

Wi-Fi Array

272 The Command Line Interface

https

The https command [Xirrus_Wi-Fi_Array(config)# https] is used to enable or

disable the Web Management Interface (https), which is enabled by default. It also

allows you to establish a timeout for your Web management session.

Command Description

disable Disable the https feature.

FORMAT:

https disable

enable Enable the https feature.

FORMAT:

https enable

off Disable the https feature.

FORMAT:

https off

on Enable the https feature.

FORMAT:

https on

timeout Define an elapsed period (in seconds) after which

the Web Management Interface will time out.

FORMAT:

https timeout 5000

Wi-Fi Array

The Command Line Interface 273

interface

The interface command [Xirrus_Wi-Fi_Array(config)# interface] is used to select

the interface that you want to configure. To see a listing of the commands that are

available for each interface, use the ? command at the selected interface prompt.

For example, using the ? command at the Xirrus_Wi-Fi_Array(config-gig1}#

prompt displays a listing of all commands for the gig1 interface.

Command Description

console Select the console interface. The console interface

is used for management purposes only.

FORMAT:

interface console

eth0 Select the Fast Ethernet interface. The Fast

Ethernet interface is used for management

purposes only.

FORMAT:

interface eth0

Note: To configure a static route for management

traffic, next enter:

static-route addr [ip-addr]

static-route mask [subnet-mask]

gig1 Select the Gigabit 1 interface.

FORMAT:

interface gig1

gig2 Select the Gigabit 2 interface.

FORMAT:

interface gig2

iap Select an IAP.

FORMAT:

interface iap

Wi-Fi Array

274 The Command Line Interface

load

The load command [Xirrus_Wi-Fi_Array(config)# load] loads a configuration

file.

location

The location command [Xirrus_Wi-Fi_Array(config)# location] is used to set the

location for the Array.

Command Description

factory.conf Load the factory settings configuration file.

FORMAT:

load [factory.conf]

lastboot.conf Load the configuration file from the last boot-up.

FORMAT:

load [lastboot.conf]

[myfile].conf If you have saved a configuration, enter its name

to load it.

FORMAT:

load [myfile.conf]

saved.conf Load the configuration file with the last saved

settings.

FORMAT:

load [saved.conf]

Command Description

<cr> Set the location for the Array.

FORMAT:

location [newlocation]

When you enter the location, simply hit the Enter

key <cr> to input the new location.

Wi-Fi Array

The Command Line Interface 275

management

The management command [Xirrus_Wi-Fi_Array(config)# management] enters

management mode, where you may configure console management parameters.

The more command [Xirrus_Wi-Fi_Array(config)# more] is used to turn terminal

pagination ON or OFF.

Command Description

<cr> Enter management mode.

FORMAT:

management <cr>

Command Description

off Turn OFF terminal pagination.

FORMAT:

more off

on Turn ON terminal pagination.

FORMAT:

more on

Wi-Fi Array

276 The Command Line Interface

The no command [Xirrus_Wi-Fi_Array(config)# no] is used to disable a selected

element or set the element to its default value.

Command Description

acl Disable the Access Control List.

FORMAT:

no acl

dot11a Disable all 802.11an IAPs (radios).

FORMAT:

no dot11a

dot11bg Disable all 802.11bg IAPs (radios).

FORMAT:

no dot11bg

https Disable https access.

FORMAT:

no https

intrude-detect Disable intrusion detection.

FORMAT:

no intrude-detect

management Disable management on all Ethernet interfaces.

FORMAT:

no management

more Disable terminal pagination.

FORMAT:

no more

ntp Disable the NTP server.

FORMAT:

no ntp

Wi-Fi Array

The Command Line Interface 277

snmp Disable SNMP features.

FORMAT:

no snmp

ssh Disable ssh access.

FORMAT:

no ssh

syslog Disable the syslog services.

FORMAT:

no syslog

telnet Disable Telnet access.

FORMAT:

no telnet

ETH-NAME Disable the selected Ethernet interface (eth0, gig1

or gig2). You cannot disable the console interface.

with this command.

FORMAT:

no eth0 (gig1 or gig2)

Command Description

Wi-Fi Array

278 The Command Line Interface

quit

The quit command [Xirrus_Wi-Fi_Array(config)# quit] is used to exit the

Command Line Interface.

radius-server

The radius-server command [Xirrus_Wi-Fi_Array(config-radius-server)#] is

used to configure the external and internal RADIUS server parameters.

Command Description

<cr> Exit the Command Line Interface.

FORMAT:

quit

If you have made any configuration changes and

your changes have not been saved, you are

prompted to save your changes to Flash.

At the prompt, answer Yes to save your changes,

or answer No to discard your changes.

Command Description

external Configure the external RADIUS server.

FORMAT:

radius-server external

To configure the RADIUS accounting server

(primary or secondary, and the reporting interval)

use:

radius-server external accounting

internal Configure the external RADIUS server.

FORMAT:

radius-server internal

use Choose the active RADIUS server (either external

or internal).

FORMAT:

use external (or internal)

Wi-Fi Array

The Command Line Interface 279

reboot

The reboot command [Xirrus_Wi-Fi_Array(config)# reboot] is used to reboot the

Array. If you have unsaved changes, the command will notify you and give you a

chance to cancel the reboot.

reset

The reset command [Xirrus_Wi-Fi_Array(config)# reset] is used to reset all

settings to their default values then reboot the Array.

Command Description

<cr> Reboot the Array.

FORMAT:

reboot

delay Reboot the Array after a delay of 1 to 60 seconds.

FORMAT:

reboot delay [n]

Command Description

<cr> Reset all configuration parameters to their factory

default values.

FORMAT:

reset

The Array is rebooted automatically.

preserve-ip-

settings

Preserve all ethernet and VLAN settings and reset

all other configuration parameters to their factory

default values.

FORMAT:

reset preserve-ip-settings

The Array is rebooted automatically.

Wi-Fi Array

280 The Command Line Interface

run-tests

The run-tests command [Xirrus_Wi-Fi_Array(run-tests)#] is used to enter run-

tests mode, which allows you to perform a range of tests on the Array.

Command Description

<cr> Enter run-tests mode.

FORMAT:

run-tests

iperf Execute iperf utility.

FORMAT:

run-tests iperf

kill-beacons Turn off beacons for selected single IAP.

FORMAT:

run-tests kill-beacons [off | iap-name]

kill-probe-

responses

Turn off probe responses for selected single IAP.

FORMAT:

run-tests kill-probe-responses [off | iap-name]

led LED test.

FORMAT:

run-tests led [flash | rotate]

memtest Execute memory tests.

FORMAT:

run-tests memtest

ping Execute ping utility.

FORMAT:

run-tests ping [host-name | ip-addr]

rlb Run manufacturing radio loopback test.

FORMAT:

run-tests rlb {optional command line switches]

Wi-Fi Array

The Command Line Interface 281

self-test Execute self-test.

FORMAT:

run-tests self-test {logfile-name (optional)]

site-survey Enable or disable site survey mode.

FORMAT:

run-tests site-survey [on | off | enable | disable]

ssh Execute ssh utility.

FORMAT:

run-tests ssh [hostname | ip-addr]

[command-line-switches (optional)]

tcpdump Execute tcpdump utility to dump traffic for

selected interface or VLAN.

FORMAT:

run-tests tcpdump

telnet Execute telnet utility.

FORMAT:

run-tests telnet [hostname | ip-addr]

[command-line-switches (optional)]

traceroute Execute traceroute utility.

FORMAT:

run-tests traceroute [host-name | ip-addr]

Command Description

Wi-Fi Array

282 The Command Line Interface

security

The security command [Xirrus_Wi-Fi_Array(config-security)#] is used to

establish the security parameters for the Array.

Command Description

wep Set the WEP encryption parameters.

FORMAT:

security wep

wpa Set the WEP encryption parameters.

FORMAT:

security wpa

Wi-Fi Array

The Command Line Interface 283

snmp

The snmp command [Xirrus_Wi-Fi_Array(config-snmp)#] is used to enable,

disable, or configure SNMP.

Command Description

community Set the SNMP read-only or read-write community

string.

FORMAT:

snmp community [newcommunity]

disable Disable SNMP.

FORMAT:

snmp disable

enable Enable SNMP.

FORMAT:

snmp enable

no Disable the selected feature.

FORMAT:

snmp no [feature]

off Disable SNMP.

FORMAT:

snmp off

on Enable SNMP.

FORMAT:

snmp on

trap-auth Send traps for authentication failures.

FORMAT:

snmp trap-auth [trap]

trap-host[1-4] Set the SNMP trap IP address or host name. Up to

four trap hosts may be set, one at a time.

FORMAT:

snmp trap-host 1.2.3.4

Wi-Fi Array

284 The Command Line Interface

ssh

The ssh command [Xirrus_Wi-Fi_Array(config)# ssh] is used to enable or disable

the SSH feature.

trap-port[1-4] Set the SNMP trap port.

FORMAT:

snmp trap-port 240

Command Description

disable Disable SSH.

FORMAT:

ssh disable

enable Enable SSH.

FORMAT:

ssh enable

off Disable SSH.

FORMAT:

ssh off

on Enable SSH.

FORMAT:

ssh on

timeout Set the SSH inactivity timeout.

FORMAT:

ssh timeout 300 (in seconds)

Command Description

Wi-Fi Array

The Command Line Interface 285

ssid

The ssid command [Xirrus_Wi-Fi_Array(config-ssid)#] is used to establish your

SSID parameters.

standby

The standby command [Xirrus_Wi-Fi_Array(config-ssid)#] sets this Array to

function as a standby unit for another Array.

Command Description

add Add an SSID.

FORMAT:

ssid add [newssid]

del Delete an SSID.

FORMAT:

ssid del [oldssid]

edit Edit an existing SSID.

FORMAT:

ssid edit [existingssid]

reset Delete all SSIDs and restore the default SSID.

FORMAT:

ssid reset

Command Description

mode Enable or disable standby mode on this Array.

FORMAT:

standby mode [disable|enable|off|on]

target Specify the MAC address of the target Array to be

monitored for failure.

FORMAT:

standby target [AA:BB:CC:DD:EE:FF]

Wi-Fi Array

286 The Command Line Interface

syslog

The syslog command [Xirrus_Wi-Fi_Array(config-syslog)#] is used to enable,

disable, or configure the Syslog server.

Command Description

console Enable or disable the display of Syslog messages

on the console, and set the level to be displayed.

All messages at this level and lower (i.e., more

severe) will be displayed.

FORMAT:

syslog console [on/off] level [0-7]

disable Disable the Syslog server.

FORMAT:

syslog disable

email Disable the Syslog server.

FORMAT:

syslog email from [email-from-address]

level [0-7]

password [email-acct-password]

server [email-server-IPaddr]

test [test-msg-text]

to-list [recipient-email-addresses]

user [email-acct-username]

enable Enable the Syslog server.

FORMAT:

syslog enable

local-file Set the size and/or severity level (all messages at

this level and lower will be logged).

FORMAT:

syslog local-file size [1-500] level [0-7]

no Disable the selected feature.

FORMAT:

syslog no [feature]

Wi-Fi Array

The Command Line Interface 287

telnet

The telnet command [Xirrus_Wi-Fi_Array(config)# telnet] is used to enable or

disable Telnet.

off Disable the Syslog server.

FORMAT:

syslog off

on Enable the Syslog server.

FORMAT:

syslog on

primary Set the IP address of the primary Syslog server

and/or the severity level of messages to be

logged.

FORMAT:

syslog primary [1.2.3.4] level [0-7]

secondary Set the IP address of the secondary (backup)

Syslog server and/or the severity level of

messages to be logged.

FORMAT:

syslog primary [1.2.3.4] level [0-7]

Command Description

disable Disable Telnet.

FORMAT:

telnet disable

enable Enable Telnet.

FORMAT:

telnet enable

Command Description

Wi-Fi Array

288 The Command Line Interface

off Disable Telnet.

FORMAT:

telnet off

on Enable Telnet.

FORMAT:

telnet on

timeout Set the Telnet inactivity timeout.

FORMAT:

telnet timeout 300 (in seconds)

Command Description

Wi-Fi Array

The Command Line Interface 289

uptime

The uptime command [Xirrus_Wi-Fi_Array(config)# uptime] is used to display

the elapsed time since you last rebooted the Array.

vlan

The vlan command [Xirrus_Wi-Fi_Array(config-vlan)#] is used to establish your

VLAN parameters.

Command Description

<cr> Display time since last reboot.

FORMAT:

uptime

Command Description

add Add a VLAN.

FORMAT:

vlan add [newvlan]

default-route Assign a VLAN for the default route (for

outbound management traffic).

FORMAT:

vlan default-route [defaultroute]

delete Delete a VLAN.

FORMAT:

vlan delete [oldvlan]

edit Modify an existing VLAN.

FORMAT:

vlan edit [existingvlan]

native-vlan Assign a native VLAN (traffic is untagged).

FORMAT:

vlan native-vlan [nativevlan]

Wi-Fi Array

290 The Command Line Interface

no Disable the selected feature.

FORMAT:

vlan no [feature]

reset Delete all existing VLANs.

FORMAT:

vlan reset

Command Description

Wi-Fi Array

The Command Line Interface 291

Sample Configuration Tasks

This section provides examples of some of the common configuration tasks used

with the Wi-Fi Array, including:

z“Configuring a Simple Open Global SSID” on page 292.

z“Configuring a Global SSID using WPA-PEAP” on page 293.

z“Configuring an SSID-Specific SSID using WPA-PEAP” on page 294.

z“Enabling Global IAPs” on page 295.

z“Disabling Global IAPs” on page 296.

z“Enabling a Specific IAP” on page 297.

z“Disabling a Specific IAP” on page 298.

z“Setting Cell Size Auto-Configuration for All IAPs” on page 299

z“Setting the Cell Size for All IAPs” on page 300.

z“Setting the Cell Size for a Specific IAP” on page 301.

z“Configuring VLANs on an Open SSID” on page 302.

z“Configuring Self-Monitoring Mode (Loopback Tests)” on page 303.

To facilitate the accurate and timely management of revisions to this section, the

examples shown here are presented as screen images taken from a Secure Shell

(SSH) session (in this case, PuTTY). Depending on the application you are using

to access the Command Line Interface, and how your session is set up (for

example, font and screen size), the images presented on your screen may be

different than the images shown in this section. However, the data displayed will

be the same.

Some of the screen images shown in this section have been modified for clarity.

For example, the image may have been “elongated” to show all data without the

need for additional images or scrolling. We recommend that you use the Adobe

PDF version of this User’s Guide when reviewing these examples—a hard copy

document may be difficult to read.

As mentioned previously, the root command prompt is determined by the host

name assigned to your Array.

Wi-Fi Array

292 The Command Line Interface

Configuring a Simple Open Global SSID

This example shows you how to configure a simple open global SSID.

Figure 142. Configuring a Simple Open Global SSID

Wi-Fi Array

The Command Line Interface 293

Configuring a Global SSID using WPA-PEAP

This example shows you how to configure a global SSID using WPA-PEAP

encryption in conjunction with the Array’s Internal RADIUS server.

Figure 143. Configuring a Global SSID using WPA-PEAP

Wi-Fi Array

294 The Command Line Interface

Configuring an SSID-Specific SSID using WPA-PEAP

This example shows you how to configure an SSID-specific SSID using WPA-

PEAP encryption in conjunction with the Array’s Internal RADIUS server.

Figure 144. Configuring an SSID-Specific SSID using WPA-PEAP

Wi-Fi Array

The Command Line Interface 295

Enabling Global IAPs

This example shows you how to enable all IAPs (radios), regardless of the

wireless technology they use.

Figure 145. Enabling Global IAPs

Wi-Fi Array

296 The Command Line Interface

Disabling Global IAPs

This example shows you how to disable all IAPs (radios), regardless of the

wireless technology they use.

Figure 146. Disabling Global IAPs

Wi-Fi Array

The Command Line Interface 297

Enabling a Specific IAP

This example shows you how to enable a specific IAP (radio). In this example, the

IAP that is being enabled is a1 (the first IAP in the summary list).

Figure 147. Enabling a Specific IAP

Wi-Fi Array

298 The Command Line Interface

Disabling a Specific IAP

This example shows you how to disable a specific IAP (radio). In this example,

the IAP that is being disabled is a2 (the second IAP in the summary list).

Figure 148. Disabling a Specific IAP

Wi-Fi Array

The Command Line Interface 299

Setting Cell Size Auto-Configuration for All IAPs

This example shows how to set the cell size for all enabled IAPs to be auto-

configured (auto). (See “Fine Tuning Cell Sizes” on page 35.) The auto_cell option

may be used with global_settings, global_a_settings, or global_bg_settings. It

sets the cell size of the specified IAPs to auto, and it launches an auto-

configuration to adjust the sizes. Be aware that if the intrude-detect feature is

enabled on abg2, its cell size is unaffected by this command. Also, any IAPs used

in WDS links are unaffected.

Auto-configuration may be set to run periodically at intervals specified by

auto_cell period (in seconds) if period is non-zero. The percentage of overlap

allowed between cells in the cell size computation is specified by auto_cell

overlap (0 to 100). This example sets auto-configuration to run every 1200 seconds

with an allowed overlap of 5%. It sets the cell size of all IAPs to auto, and runs a

cell size auto-configure operation which completes successfully.

Figure 149. Setting the Cell Size for All IAPs

Wi-Fi Array

300 The Command Line Interface

Setting the Cell Size for All IAPs

This example shows you how to establish the cell size for all IAPs (radios),

regardless of the wireless technology they use. Be aware that if the intrude-detect

feature is enabled on abg2 the cell size cannot be set globally—you must first

disable the intrude-detect feature on abg2.

In this example, the cell size is being set to small for all IAPs. You have the option

of setting IAP cell sizes to small, medium, large, or max. See also, “Fine Tuning

Cell Sizes” on page 35.

Figure 150. Setting the Cell Size for All IAPs

Wi-Fi Array

The Command Line Interface 301

Setting the Cell Size for a Specific IAP

This example shows you how to establish the cell size for a specific IAP (radio). In

this example, the cell size for a2 is being set to medium. You have the option of

setting IAP cell sizes to small, medium, large, or max (the default is max). See

also, “Fine Tuning Cell Sizes” on page 35.

Figure 151. Setting the Cell Size for a Specific IAP

Wi-Fi Array

302 The Command Line Interface

Configuring VLANs on an Open SSID

This example shows you how to configure VLANs on an Open SSID.

Figure 152. Configuring VLANs on an Open SSID

#Setting the default route

enables the Array to send

management traffic, such as

syslog messages and SNMP

information to a destination

behind a router.

Wi-Fi Array

The Command Line Interface 303

Configuring Self-Monitoring Mode (Loopback Tests)

The Array uses the built-in monitor radio (IAP abg2) to monitor other radios in

the Array. Tests include sending probes on all channels and checking for a

response, and checking whether beacons are received from the other radio. If a

problem is detected, corrective actions are taken to recover. Loopback mode

operation is described in detail in “Array Monitor and Loopback Testing

Capabilities” on page 341.

The following actions may be configured:

zalert-only—the Array will issue an alert in the Syslog.

zrepair-without-reboot—the Array will issue an alert and reset radios at

the Physical Layer (Layer 1) and possibly at the MAC layer. The reset

should not be noticed by users, and they will not need to reassociate.

zreboot-allowed—the Array will issue an alert, reset the radios, and

schedule the Array to reboot at midnight (per local Array time) if

necessary. All stations will need to reassociate to the Array.

zoff—Disable IAP loopback tests (no self-monitoring occurs). Loopback

tests are off by default.

This is a global IAPs setting—abg2 will monitor all other radios according to the

settings above, and it cannot be set up to monitor particular radios. Self-

monitoring mode requires Intrusion Detection to be set to Standard.

The following example shows you how to configure a loopback test.

Wi-Fi Array

304 The Command Line Interface

Figure 153. Configuring a Loopback Test

Wi-Fi Array

305

Appendices

Wi-Fi Array

306

Page is intentionally blank

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 307

Appendix A: Servicing the Wi-Fi Array

This appendix contains procedures for servicing the Xirrus Wi-Fi Array, including

the removal and reinstallation of major hardware components. Topics include:

z“Removing the Access Panel” on page 309.

z“Reinstalling the Access Panel” on page 312.

z“Replacing the FLASH Memory Module” on page 314.

z“Replacing the Main System Memory” on page 316.

z“Replacing the Integrated Access Point Radio Module” on page 318.

z“Replacing the Power Supply Module” on page 321.

Always turn OFF the Array’s power switch and disconnect the AC power cord

before attempting to remove or replace components. Never work on the unit

with the power connected.

You must be grounded and the work surface must be static-free.

Caution! The Array contains a battery which is not to be replaced by the

customer. Danger of Explosion exists if the battery is incorrectly replaced.

Figure 154. Disconnecting Power from the Array

#Most service activities are performed with the Array placed face-down on a

flat work surface. To avoid damaging the finished enclosure, we recommend

using a protective material between the work surface and the unit (a clean

sheet of paper will do the trick).

Power switch

AC power cord receptacle

Wi-Fi Array

308 Appendix A: Servicing the Wi-Fi Array

See Also

Reinstalling the Access Panel

Removing the Access Panel

Replacing the FLASH Memory Module

Replacing the Integrated Access Point Radio Module

Replacing the Main System Memory

Replacing the Power Supply Module

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 309

Removing the Access Panel

Use this procedure when you want to remove the system’s access panel. You must

remove this panel whenever you need to service the internal components of the

Array.

1. Turn OFF the Array’s main power switch (XN16 and XN8 only).

2. Disconnect the AC power cord from the Array.

3. Place the Array face-down on a flat surface. Avoid moving the unit to

reduce the risk of damage (scratching) to the finished enclosure.

4. Remove the screws (3 places) that secure the access panel to the main

body of the Array.

Figure 155. Removing the Access Panel Screws

Screw

Wi-Fi Array

310 Appendix A: Servicing the Wi-Fi Array

5. Lift up the access panel to reveal the main system board.

Figure 156. Removing the Access Panel

6. Disconnect the connectors to the power supply and the fan.

Figure 157. Disconnecting the Power Supply and Fan

7. The access panel can now be safely removed.

Lift up the access panel

Power supply connectorFan connector

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 311

See Also

Reinstalling the Access Panel

Replacing the FLASH Memory Module

Replacing the Integrated Access Point Radio Module

Replacing the Main System Memory

Replacing the Power Supply Module

Appendix A: Servicing the Wi-Fi Array

Wi-Fi Array

312 Appendix A: Servicing the Wi-Fi Array

Reinstalling the Access Panel

Use this procedure when you need to reinstall the access panel after servicing the

Array’s internal components.

1. Reconnect the fan and power supply.

Figure 158. Reconnecting the Fan and Power Supply

2. Reinstall the access panel and secure the panel with the three screws.

Figure 159. Reinstalling the Access Panel

3. Reconnect the AC power cord and turn ON the main power switch.

Power supply connectorFan connector

Screw

!Do not

overtighten

Screw

!Do not

overtighten

Screw

!Do not

overtighten

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 313

See Also

Removing the Access Panel

Replacing the FLASH Memory Module

Replacing the Integrated Access Point Radio Module

Replacing the Main System Memory

Replacing the Power Supply Module

Appendix A: Servicing the Wi-Fi Array

Wi-Fi Array

314 Appendix A: Servicing the Wi-Fi Array

Replacing the FLASH Memory Module

Use this procedure when you want to replace the system’s FLASH memory

module.

1. Remove the system’s access panel. Refer to “Removing the Access Panel”

on page 309.

2. Remove the FLASH memory module, taking care not to “wiggle” the

module and risk damaging the connection points.

Figure 160. Removing the FLASH Memory Module

3. The removal procedure is complete. You can now reinstall the FLASH

memory module (or install a new module).

FLASH memory module

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 315

4. Reinstall the access panel (refer to “Reinstalling the Access Panel” on

page 312).

See Also

Reinstalling the Access Panel

Removing the Access Panel

Replacing the Integrated Access Point Radio Module

Replacing the Main System Memory

Replacing the Power Supply Module

Appendix A: Servicing the Wi-Fi Array

Wi-Fi Array

316 Appendix A: Servicing the Wi-Fi Array

Replacing the Main System Memory

Use this procedure when you want to replace the main system memory.

1. Remove the access panel (refer to “Removing the Access Panel” on

page 309).

2. Remove the DIMM memory module, taking care not to “wiggle” the

module and risk damaging the connection points.

Figure 161. Removing the DIMM Memory Module

3. The removal procedure is complete. You can now reinstall the DIMM

memory module (or install a new module). Ensure that the DIMM

memory module is seated evenly and the locking tabs are in the upright

position. The DIMM memory module is keyed to fit in its socket in one

direction only.

4. Reinstall the access panel (refer to “Reinstalling the Access Panel” on

page 312).

See Also

Reinstalling the Access Panel

Removing the Access Panel

Replacing the FLASH Memory Module

DIMM memory module

Push down on

the two locking

tabs to release

the DIMM

memory module

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 317

Replacing the Integrated Access Point Radio Module

Replacing the Power Supply Module

Appendix A: Servicing the Wi-Fi Array

Wi-Fi Array

318 Appendix A: Servicing the Wi-Fi Array

Replacing the Integrated Access Point Radio Module

Use this procedure when you want to replace the integrated access point radio

module.

1. Remove the access panel (refer to “Removing the Access Panel” on

page 309).

2. Remove the locking screws (8 places) that secure the chassis cover to the

main body of the Wi-Fi Array.

Figure 162. Removing the Chassis Cover Screws

3. Lift and remove the chassis cover.

Figure 163. Removing the Chassis Cover

Screws (8 places)

Remove the chassis cover

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 319

4. Lift the edge of the integrated access point module.

Figure 164. Lifting the Integrated Access Point Module

5. Slide the integrated access point module away from the unit to disconnect

it from the main system board.

Figure 165. Disconnect the Integrated Access Point Module

6. The removal procedure is complete. You can now reinstall the integrated

access point module (or install a new module).

Lift here (do not force)

Disconnect the module

Wi-Fi Array

320 Appendix A: Servicing the Wi-Fi Array

7. Reinstall the chassis cover (see warnings).

8. Reinstall the locking screws (8 places) to secure the chassis cover in

place—do not overtighten.

9. Reinstall the access panel (refer to “Reinstalling the Access Panel” on

page 312).

See Also

Reinstalling the Access Panel

Removing the Access Panel

Replacing the FLASH Memory Module

Replacing the Main System Memory

Replacing the Power Supply Module

Appendix A: Servicing the Wi-Fi Array

When reinstalling the chassis cover, take care to align the cover correctly to

avoid damaging the antenna modules. Do not force the chassis cover onto the

body of the unit.

Do not overtighten the locking screws.

Wi-Fi Array

Appendix A: Servicing the Wi-Fi Array 321

Replacing the Power Supply Module

Use this procedure when you want to replace the power supply module.

1. Remove the access panel (refer to “Removing the Access Panel” on

page 309).

2. Because the power supply unit is molded into the access panel, you must

install a new access panel assembly (with the power supply attached).

Refer to “Reinstalling the Access Panel” on page 312.

Figure 166. Installing a New Access Panel (with Power Supply)

See Also

Reinstalling the Access Panel

Removing the Access Panel

Replacing the FLASH Memory Module

Replacing the Integrated Access Point Radio Module

Replacing the Main System Memory

Appendix A: Servicing the Wi-Fi Array

Access panel (with power supply and fan)

Wi-Fi Array

322 Appendix A: Servicing the Wi-Fi Array

Use this Space for Your Notes

Wi-Fi Array

Appendix B: Quick Reference Guide 323

Appendix B: Quick Reference Guide

This section contains product reference information. Use this section to locate the

information you need quickly and efficiently. Topics include:

z“Factory Default Settings” on page 323.

Factory Default Settings

The following tables show the Wi-Fi Array’s factory default settings.

Host Name

Network Interfaces

Serial

Gigabit 1 and Gigabit 2

Setting Default Value

Host name Xirrus-WiFi-Array

Setting Default Value

Baud Rate 115200

Word Size 8 bits

Stop Bits 1

Parity No parity

Time Out 10 seconds

Setting Default Value

Enabled Yes

Wi-Fi Array

324 Appendix B: Quick Reference Guide

Fast Ethernet

DHCP Bind Yes

Default IP Address 10.0.2.1

Default IP Mask 255.255.255.0

Default Gateway None

Auto Negotiate On

Duplex Full

Speed 1000 Mbps

MTU Size 1504

Management Enabled Yes

Setting Default Value

Enabled Yes

DHCP Bind Yes

Default IP Address 10.0.1.1

Default IP Mask 255.255.255.0

Default Gateway None

Auto Negotiate On

Duplex Full

Speed 100 Mbps

MTU Size 1500

Management Enabled Yes

Setting Default Value

Wi-Fi Array

Appendix B: Quick Reference Guide 325

Integrated Access Points (IAPs)

Server Settings

NTP

Setting Default Value

IAP abg2 Defaults Enabled

Mode = Monitor

Channel = Monitor

Cell Size = Manual

Antenna = Internal-Omni

Enabled (Radio State) No

Mode

zXN16

zXN8

zXN4

802.11an for a1 to a12

802.11bg for abg1 to abg4

802.11an for a1 to a4

802.11bg for abg1 to abg4

Channel Auto

Cell Size Max

Maximum Transmit Power 20

Antenna Selected Internal

Setting Default Value

Enabled No

Primary time.nist.gov

Secondary pool.ntp.org

Wi-Fi Array

326 Appendix B: Quick Reference Guide

Syslog

SNMP

DHCP

Setting Default Value

Enabled Yes

Local Syslog Level Information

Maximum Internal Records 500

Primary Server None

Primary Syslog Level Information

Secondary Server None

Secondary Syslog Level Information

Setting Default Value

Enabled Yes

Read-Only Community String xirrus_read_only

Read-Write Community String xirrus

Trap Host null (no setting)

Trap Port 162

Authorization Fail Port On

Setting Default Value

Enabled No

Maximum Lease Time 300 minutes

Default Lease Time 300 minutes

Wi-Fi Array

Appendix B: Quick Reference Guide 327

Default SSID

Security

Global Settings - Encryption

IP Start Range 192.168.1.2

IP End Range 192.168.1.254

NAT Disabled

IP Gateway None

DNS Domain None

DNS Server (1 to 3) None

Setting Default Value

ID xirrus

VLAN None

Encryption Off

Encryption Type None

QoS 2

Enabled Yes

Broadcast On

Setting Default Value

Enabled Yes

WEP Keys null (all 4 keys)

Setting Default Value

Wi-Fi Array

328 Appendix B: Quick Reference Guide

External RADIUS (Global)

WEP Key Length null (all 4 keys)

Default Key ID 1

WPA Enabled No

TKIP Enabled Yes

AES Enabled Yes

EAP Enabled Yes

PSK Enabled No

Pass Phrase null

Group Rekey Disabled

Setting Default Value

Enabled Yes

Primary Server None

Primary Port 1812

Primary Secret xirrus

Secondary Server null (no IP address)

Secondary Port 1812

Secondary Secret null (no secret)

Time Out (before primary server is

retired) 600 seconds

Accounting Disabled

Interval 300 seconds

Setting Default Value

Wi-Fi Array

Appendix B: Quick Reference Guide 329

Internal RADIUS

Administrator Account and Password

Management

Primary Server None

Primary Port 1813

Primary Secret xirrus

Secondary Server None

Secondary Port 1813

Secondary Secret null (no secret)

Setting Default Value

Enabled No

The user database is cleared upon reset to the factory defaults. For the

Internal RADIUS Server you have a maximum of 1,000 entries.

Setting Default Value

ID admin

Password admin

Setting Default Value

SSH On

SSH timeout 300 seconds

Setting Default Value

Wi-Fi Array

330 Appendix B: Quick Reference Guide

Keyboard Shortcuts

The following table shows the most common keyboard shortcuts used by the

Command Line Interface.

Telnet Off

Telnet timeout 300 seconds

Serial On

Serial timeout 300 seconds

Management over IAPs Off

http timeout 300 seconds

Action Shortcut

Cut selected data and place it on the

clipboard. Ctrl + X

Copy selected data to the clipboard. Ctrl + C

Paste data from the clipboard into a

document (at the insertion point). Ctrl + V

Go to top of screen. Ctrl + Z

Copy the active window to the

clipboard. Alt + Print Screen

Copy the entire desktop image to the

clipboard. Print Screen

Abort an action at any time. Esc

Go back to the previous screen. b

Access the Help screen. ?

Setting Default Value

Wi-Fi Array

Appendix B: Quick Reference Guide 331

See Also

An Overview

Wi-Fi Array

332 Appendix B: Quick Reference Guide

Use this Space for Your Notes

Wi-Fi Array

Appendix C: Technical Support 333

Appendix C: Technical Support

This appendix provides valuable support information that can help you resolve

technical difficulties. Before contacting Xirrus, review all topics below and try to

determine if your problem resides with the Wi-Fi Array or your network

infrastructure. Topics include:

z“General Hints and Tips” on page 333

z“Frequently Asked Questions” on page 334

z“Array Monitor and Loopback Testing Capabilities” on page 341

z“Upgrading the Array via CLI” on page 344

z“Contact Information” on page 349

General Hints and Tips

This section provides some useful tips that will optimize the reliability and

performance of your Wi-Fi Arrays.

zThe Wi-Fi Array requires careful handling. For best performance, units

should be mounted in a dust-free and temperature-controlled

environment.

zIf using multiple Arrays in the same area, maintain a distance of at least

100 feet (30m) between Arrays if there is direct line-of-sight between the

units, or at least 50 feet (15 m) if a wall or other barrier exists between the

units.

zKeep the Wi-Fi Array away from electrical devices or appliances that

generate RF noise. Because the Array is generally mounted on ceilings, be

aware of its position relative to lighting (especially fluorescent lighting).

zIf using AC power, each Wi-Fi Array requires its own dedicated AC

power outlet. Do not attempt to “piggy-back” AC power to multiple

units. To avoid needing to run separate power cables to one or more

Arrays, consider using Power over Gigabit Ethernet.

Wi-Fi Array

334 Appendix C: Technical Support

zIf you are deploying multiple units, the Array should be oriented so that

the abg2 radio is oriented in the direction of the least required coverage,

because when in monitor mode the abg2 radio does not function as an AP

servicing stations.

zThe Wi-Fi Array should only be used with Wi-Fi certified client devices.

See Also

Contact Information

Multiple SSIDs

Security

VLAN Support

Frequently Asked Questions

This section answers some of the most frequently asked questions, organized by

functional area.

Multiple SSIDs

Q. What Are BSSIDs and SSIDs?

A. BSSID (Basic Service Set Identifier) refers to an individual access point

radio and its associated clients. The identifier is the MAC address of the

access point radio that forms the BSS.

A group of BSSs can be formed to allow stations in one BSS to

communicate to stations in another BSS by way of a backbone that

interconnects each access point.

The Extended Service Set (ESS) refers to the group of BSSIDs that are

grouped together to form one ESS. The ESSID (often referred to as SSID or

“wireless network name”) identifies the Extended Service Set. Clients

must associate to a single ESS at any given time. Clients ignore traffic

from other Extended Service Sets that do not have the same SSID.

Legacy access points typically support one SSID per access point. Xirrus

Wi-Fi Arrays support the ability for multiple SSIDs to be defined and

used simultaneously.

Wi-Fi Array

Appendix C: Technical Support 335

Q. What would I use SSIDs for?

A. The creation of different wireless network names allows system

administrators to separate types of users with different requirements. The

following policies can be tied to an SSID:

zMinimum security required to join this SSID.

zThe wireless Quality of Service (QoS) desired for this SSID.

zThe wired VLAN associated with this SSID.

As an example, one SSID named accounting might require the highest

level of security, while another SSID named guests might have low

security requirements.

Another example may define an SSID named voice that supports voice

over Wireless LAN phones with the highest possible Quality of Service

(QoS) definition. This type of SSID might also forward traffic to specific

VLANs on the wired network.

Q. How do I set up SSIDs?

A. Use the following procedure as a guideline. For more detailed

information, go to “SSIDs” on page 184.

1. From the Web Management Interface, go to the SSID

Management page.

2. Select Yes to make the SSID visible to all clients on the network.

Although the Wi-Fi Array will not broadcast SSIDs that are

hidden, clients can still associate to a hidden SSID if they know

the SSID name to connect to it.

3. Select the minimum security that will be required by users for

this SSID.

4. If desired (optional), select a Quality of Service (QoS) setting for

this SSID. The QoS setting you define here will prioritize wireless

traffic for this SSID over other SSID wireless traffic.

5. If desired (optional), select a VLAN that you want this traffic to

be forwarded to on the wired network.

Wi-Fi Array

336 Appendix C: Technical Support

6. If desired (optional), you can select which radios this SSID will

not be available on—the default is to make this SSID available on

all radios.

7. Click on the Apply button to apply your changes to this session.

8. Click on the Save button to save your changes.

9. If you need to edit any of the SSID settings, you can do so from

the SSID Management page.

See Also

Contact Information

General Hints and Tips

Security

SSIDs

SSID Management

VLAN Support

Security

Q. How do I know my management session is secure?

A. Follow these guidelines:

zAdministrator passwords

Always change the default administrator password (the default

is admin), and choose a strong replacement password. When

appropriate, issue read only administrator accounts.

zSSH versus Telnet

Be aware that Telnet is not secure over network connections and

should be used only with a direct serial port connection. When

connecting to the unit’s Command Line Interface over a network

connection, you must use a Secure SHell (SSH) utility. The most

commonly used freeware providing SSH tools is PuTTY.

zConfiguration auditing

Wi-Fi Array

Appendix C: Technical Support 337

Do not change approved configuration settings. The optional

Xirrus Management System (XMS) offers powerful management

features for small or large Wi-Fi Array deployments, and can

audit your configuration settings automatically. In addition,

using the XMS eliminates the need for an FTP server.

Q. Which wireless data encryption method should I use?

A. Wireless data encryption prevents eavesdropping on data being

transmitted or received over the airwaves. The Wi-Fi Array allows you to

establish the following data encryption configuration options:

zOpen

This option offers no data encryption and is not recommended,

though you might choose this option if clients are required to use

a VPN connection through a secure SSH utility, like PuTTy.

zWEP (Wired Equivalent Privacy)

This option provides minimal protection (though much better

than using an open network). An early standard for wireless data

encryption and supported by all Wi-Fi certified equipment, WEP

is vulnerable to hacking and is therefore not recommended for

use by Enterprise networks.

zWPA (Wi-Fi Protected Access)

This is a much stronger encryption model than WEP and uses

TKIP (Temporal Key Integrity Protocol) with AES (Advanced

Encryption Standard) to prevent WEP cracks.

TKIP solves security issues with WEP. It also allows you to

establish encryption keys on a per-user-basis, with key rotation

for added security. In addition, TKIP provides Message Integrity

Check (MIC) functionality and prevents active attacks on the

wireless network.

AES is the strongest encryption standard and is used by

government agencies; however, old legacy hardware may not be

capable of supporting the AES mode (it probably won’t work on

older wireless clients). Because AES is the strongest encryption

Wi-Fi Array

338 Appendix C: Technical Support

standard currently available, it is highly recommended for

Enterprise networks.

Any of the above encryption modes can be used (and can be used at

the same time).

Q. Which user authentication method should I use?

A. User authentication ensures that users are who they say they are. For

example, the most obvious example of authentication is logging in with a

user name and password. The Wi-Fi Array allows you to choose between

the following user authentication methods:

zPre-Shared Key

Users must manually enter a key (pass phrase) on the client side

of the wireless network that matches the key stored by the

administrator in your Wi-Fi Arrays.

zRADIUS 802.1x with EAP

802.1x uses a RADIUS server to authenticate large numbers of

clients, and can handle different EAP (Extensible Authentication

Protocol) authentication methods, including EAP-TLS, EAP-

TTLS and EAP-PEAP. The RADIUS server can be internal

(provided by the Wi-Fi Array) or external. An external RADIUS

server offers more functionality and is recommended for large

Enterprise deployments.

When using this method, user names and passwords must be

entered into the RADIUS server for user authentication.

zMAC Address ACLs (Access Control Lists)

MAC address ACLs provide a list of client adapter MAC

addresses that are allowed or denied access to the wireless

network. Access Control Lists work well when there are a limited

number of users—in this case, enter the MAC addresses of each

user in the Allow list. In the event of a lost or stolen MAC

adapter, enter the affected MAC address in the Deny list.

Q. Why do I need to authenticate my Wi-Fi Array units?

Wi-Fi Array

Appendix C: Technical Support 339

A. When deploying multiple Wi-Fi Arrays, you may need to define which

units are part of which wireless network (for example, if you are

establishing more than one network). In this case, you need to employ the

Xirrus Management System (XMS) which can authenticate your Arrays

automatically and ensure that only authorized units are associated with

the defined wireless network.

Q. What is rogue AP (Access Point) detection?

A. The Wi-Fi Array has a dedicated radio (abg/4) which constantly scans the

local wireless environment for rogue APs (non-Xirrus devices that are not

part of your wireless network), unencrypted transmissions, and other

security issues. Administrators can then classify each rogue AP and

ensure that these devices do not interrupt or interfere with the network.

See Also

Contact Information

General Hints and Tips

Multiple SSIDs

VLAN Support

Q. What Are VLANs?

A. VLANs (Virtual Local Area Networks) are a logical grouping of network

devices that share a common network broadcast domain. Members of a

particular VLAN can be on any segment of the physical network but

logically only members of a particular VLAN can see each other.

VLANs are defined and implemented using the wired network switches

that are VLAN capable. Packets are tagged for transmission on a

particular VLAN according to the IEEE 802.1Q standard, with VLAN

switches processing packets according to the tag.

Q. What would I use VLANs for?

Wi-Fi Array

340 Appendix C: Technical Support

A. Logically separating different types of users, systems, applications, or

other logical division aids in performance and management of different

network devices. Different VLANs can also be assigned with different

packet priorities to prioritize packets from one VLAN over packets from

another VLAN.

VLANs are managed by software settings—instead of physically

plugging in and moving network cables and users—which helps to ease

network management tasks.

Q. What are Wireless VLANs?

A. Wireless VLANs allow similar functionality to the wired VLAN

definitions and extend the operation of wired VLANs to the wireless side

of the network.

Wireless VLANs can be mapped to wireless SSIDs so that traffic from

wired VLANs can be sent to wireless users of a particular SSID. The

reverse is also true, where wireless traffic originating from a particular

SSID can be tagged for transmission on a particular wired VLAN.

Sixteen SSIDs can be defined on your Wi-Fi Array, allowing a total of

sixteen VLANs to be accessed (one per SSID).

As an example, to provide guest user access an SSID of guest might be

created. This SSID could be mapped to a wired VLAN that segregates

unknown users from the rest of the wired network and restricts them to

Internet access only. Wireless users could then associate to the wireless

network via the guest SSID and obtain access to the Internet through the

selected VLAN, but would be able to access other privileged network

resources.

See Also

Contact Information

General Hints and Tips

Multiple SSIDs

Security

Wi-Fi Array

Appendix C: Technical Support 341

Array Monitor and Loopback Testing Capabilities

All models of the Wi-Fi Array have a monitor radio, abg2, that checks that the

Array’s radios are functioning correctly, and acts as a dedicated threat sensor to

detect and prevent intrusion from rogue access points.

Enabling Monitoring on the Array

IAP abg2 may be set to monitor the Array or to be a normal IAP radio. In order to

enable the functions required for intrusion detection and for monitoring the other

Array radios, you must configure abg2 on the IAP Settings window as follows:

zCheck the Enabled checkbox.

zSet Mode to Monitor.

zSet Channel to Monitor.

The settings above will automatically set the Antenna selection to

Internal-Omni., also required for monitoring. See the “IAP Settings” on page 204

for more details. The values above are the factory default settings for the Array.

How Monitoring Works

When the monitor radio abg2 has been configured as just described, it performs

these steps continuously (24/7) to check the other radios on the Array and detect

possible intrusions:

1. The monitor radio scans all channels with a 200ms dwell time, hitting all

channels about once every 10 seconds.

2. Each time it tunes to a new channel it sends out a probe request in an

attempt to smoke out rogues.

3. It then listens for all probe responses and beacons to detect any rogues

within earshot.

4. Array radios respond to that probe request with a probe response.

Intrusion Detection is enabled or disabled separately from monitoring. See Step 1

in “Advanced RF Settings” on page 221. Note that the Advanced setting is only

used with the optional Xirrus Defense Module (XDM) software package.

Wi-Fi Array

342 Appendix C: Technical Support

Loopback Testing

The Array is capable of performing continuous, comprehensive tests on its radios

to assure that they are operating properly. Testing is enabled using the Radio

Assurance Mode setting on the Advanced RF Settings window (Step 5 in

“Advanced RF Settings” on page 221). When this mode is enabled, IAP abg2

performs loopback tests on the Array. Radio Assurance Mode (also called

loopback mode) requires Intrusion Detection to be set to Standard (See Step 1 in

“Advanced RF Settings” on page 221).

When Loopback Mode is enabled:

1. The Array keeps track of whether or not it hears beacons and probe

responses from the Array’s radios.

2. After 10 minutes (roughly 60 passes on a particular channel by the

monitor radio), if it has not heard beacons or probe responses from one of

the Array’s radios it issues an alert in the Syslog. If repair is allowed (see

“Loopback Mode Options” on page 343), the Array will reset and

reprogram that particular radio at the Physical Layer (PHY—Layer 1).

This action takes under 100ms and stations are not deauthenticated, thus

users should not be impacted.

3. After another 10 minutes (roughly another 60 passes), if the monitor still

has not heard beacons or probe responses from the malfunctioning radio

it will again issue an alert in the Syslog. If repair is allowed, the Array will

reset and reprogram the MAC (the lower sublayer of the Data Link Layer)

and then all of the PHYs. This is a global action that affects all radios. This

action takes roughly 300ms and stations are not deauthenticated, thus

users should not be impacted.

4. After another 10 minutes, if the monitor still has not heard beacons or

probe responses from that radio, it will again syslog the issue. If reboot is

allowed (see “Loopback Mode Options” on page 343), the Array will

schedule a reboot. This reboot will occur at one of the following times,

whichever occurs first:

•When no stations are associated to the Array

•Midnight

Wi-Fi Array

Appendix C: Technical Support 343

Loopback Mode Options

If the monitor detects a problem with an Array radio as described above, it will

take action according to the preference that you have specified in the Radio

Assurance Mode setting on the Advanced RF Settings window (see Step 5

page 223):

zFailure alerts only—The Array will issue alerts in the Syslog, but will not

initiate repairs or reboots.

zFailure alerts & repairs, but no reboots—The Array will issue alerts and

perform resets of the PHY and MAC as described above.

zFailure alerts & repairs & reboots if needed—The Array will issue alerts,

perform resets of the PHY and MAC, and schedule reboots as described

above.

zDisabled—Disable IAP loopback tests (no self-monitoring occurs).

Loopback tests are disabled by default.

Wi-Fi Array

344 Appendix C: Technical Support

Upgrading the Array via CLI

If you are experiencing difficulties communicating with the Array using the Web

Management Interface, the Array provides lower-level facilities that may be used

to accomplish an upgrade via the CLI and the Xirrus Boot Loader (XBL).

1. Download the latest software update from the Xirrus FTP site using your

Enhanced Care FTP username and password. If you do not have an FTP

username and password, contact Xirrus Customer Service for assistance

(support@xirrus.com). The software update is provided as a zip file.

Unzip the contents to a local temp directory. Take note of the extracted file

name in case you need it later on—you may also need to copy this file

elsewhere on the network depending on your situation.

2. Install a TFTP server software package if you don't have one running. It

may be installed on any PC on your network, including your desktop or

laptop. The Solar Winds version is freeware and works well.

http://support.solarwinds.net/updates/New-customerFree.cfm?ProdId=52

The TFTP install process creates the TFTP-Root directory on your C:

drive, which is the default target for sending and receiving files. This may

be changed if desired. This directory is where you will place the extracted

Xirrus software update file(s). If you install the TFTP server on the same

computer to which you extracted the file, you may change the TFTP

directory to C:\xirrus if desired.

You must make the following change to the default configuration of the

Solar Winds TFTP server. In the File/Configure menu, select Security,

then select Tra nsmi t o nly and click OK.

3. Determine the IP address of the computer hosting the TFTP server. (To

display the IP address, open a command prompt and type ipconfig)

4. Connect your Array to the computer running TFTP using a serial cable,

and open a terminal program if you haven't already. Attach a network

cable to the Array’s GIG1 port, if it is not already part of your network.

Wi-Fi Array

Appendix C: Technical Support 345

Boot your Array and watch the progress messages. When Press space bar

to exit to bootloader: is displayed, press the space bar. The rest of this

procedure is performed using the bootloader.

The following steps assume that you are running DHCP on your local

network.

5. Type dhcp and hit return. This instructs the Array to obtain a DHCP

address and use it during this boot in the bootloader environment.

6. Type dir and hit return to see what's currently in the compact flash.

7. Type del and hit return to delete the contents of the compact flash.

8. Type update server <TFTP-server-ip-addr> xs-3.x-xxxx.bin (the actual

Xirrus file name will vary depending on Array model number and

software version—use the file name from your software update) and hit

return. The software update will be transferred to the Array's memory

and will be written to the it’s compact flash card. (See output below.)

9. Type reset and hit return. Your Array will reboot, running your new

version of software.

Sample Output for the Upgrade Procedure:

The user actions are highlighted in the output below, for clarity.

Username: admin

Password: *****

Xirrus-WiFi-Array# configure

Xirrus-WiFi-Array(config)# reboot

Are you sure you want to reboot? [yes/no]: yes

Array is being rebooted.

Xirrus Boot Loader 1.0.0 (Oct 17 2006 - 13:11:42), Build: 2725

Processor | Motorola PowerPC, PVR=80200020 SVR=80300020

Board | Xirrus MPC8540 CPU Board

Clocks | CPU : 825 MHz DDR : 330 MHz Local Bus: 41 MHz

Wi-Fi Array

346 Appendix C: Technical Support

L1 cache | Data: 32 KB Inst: 32 KB Status : Enabled

Watchdog | Enabled (5 secs)

I2C Bus | 400 KHz

DTT | CPU:34C RF0:34C RF1:34C RF2:27C RF3:29C

RTC | Wed 2007-Nov-05 6:43:14 GMT

System DDR | 256 MB, Unbuffered Non-ECC (2T)

L2 cache | 256 KB, Enabled

FLASH | 4 MB, CRC: OK

FPGA | 2 Devices programmed

Packet DDR | 256 MB, Unbuffered Non-ECC, Enabled

Network | Mot FEC Mot TSEC1 [Primary] Mot TSEC2

IDE Bus 0 | OK

CFCard | 122 MB, Model: Hitachi XXM2.3.0

Environment| 4 KB, Initialized

In: serial

Out: serial

Err: serial

Press space bar to exit to bootloader:

XBL>dhcp

[DHCP ] Device : Mot TSEC1 1000BT Full Duplex

[DHCP ] IP Addr : 192.168.39.195

XBL>dir

[CFCard] Directory of /

Date Time Size File or Directory name

----------- -------- -------- ---------------------------

2007-Nov-05 6:01:56 29 lastboot

2007-Apr-05 15:47:46 28210390 xs-3.1-0433.bak

2007-Mar-01 16:39:42 storage/

2007-Apr-05 15:56:38 28210430 xs-3.1-0440.bin

2007-Mar-03 0:56:28 wpr/

3 file(s), 2 dir(s)

Wi-Fi Array

Appendix C: Technical Support 347

XBL>del *

[CFCard] Delete : 2 file(s) deleted

XBL>update server 192.168.39.102 xs-3.0-0425.bin

[TFTP ] Device : Mot TSEC1 1000BT Full Duplex

[TFTP ] Client : 192.168.39.195

[TFTP ] Server : 192.168.39.102

[TFTP ] File : xs-3.0-0425.bin

[TFTP ] Address : 0x1000000

[TFTP ] Loading : ##################################################

[TFTP ] Loading : ###### done

[TFTP ] Complete: 12.9 sec, 2.1 MB/sec

[TFTP ] Bytes : 27752465 (1a77811 hex)

[CFCard] File : xs-3.0-0425.bin

[CFCard] Address : 0x1000000

[CFCard] Saving : ############################################### done

[CFCard] Complete: 137.4 sec, 197.2 KB/sec

[CFCard] Bytes : 27752465 (1a77811 hex)

XBL>reset

[RESET ]

Xirrus Boot Loader 1.0.0 (Oct 17 2006 - 13:11:42), Build: 2725

Processor | Motorola PowerPC, PVR=80200020 SVR=80300020

Board | Xirrus MPC8540 CPU Board

Clocks | CPU : 825 MHz DDR : 330 MHz Local Bus: 41 MHz

L1 cache | Data: 32 KB Inst: 32 KB Status : Enabled

Watchdog | Enabled (5 secs)

I2C Bus | 400 KHz

DTT | CPU:33C RF0:32C RF1:31C RF2:26C RF3:27C

RTC | Wed 2007-Nov-05 6:48:44 GMT

System DDR | 256 MB, Unbuffered Non-ECC (2T)

Wi-Fi Array

348 Appendix C: Technical Support

L2 cache | 256 KB, Enabled

FLASH | 4 MB, CRC: OK

FPGA | 2 Devices programmed

Packet DDR | 256 MB, Unbuffered Non-ECC, Enabled

Network | Mot FEC Mot TSEC1 [Primary] Mot TSEC2

IDE Bus 0 | OK

CFCard | 122 MB, Model: Hitachi XXM2.3.0

Environment| 4 KB, Initialized

In: serial

Out: serial

Err: serial

Press space bar to exit to bootloader:

[CFCard] File : xs*.bin

[CFCard] Address : 0x1000000

[CFCard] Loading : ############################################### done

[CFCard] Complete: 26.9 sec, 1.0 MB/sec

[CFCard] Bytes : 27752465 (1a77811 hex)

[Boot ] Address : 0x01000000

[Boot ] Image : Verifying checksum .... OK

[Boot ] Unzip : Multi-File Image .... OK

[Boot ] Initrd : Loading RAMDisk Image

[Boot ] Initrd : Verifying checksum .... OK

[Boot ] Execute : Transferring control to OS

Initializing hardware ........................................ OK

Xirrus Wi-Fi Array

ArrayOS Version 3.0-425

http://www.xirrus.com

Username:

Wi-Fi Array

Appendix C: Technical Support 349

Contact Information

Xirrus, Inc. is located in Westlake Village, California, just 45 minutes northwest of

downtown Los Angeles and 45 minutes southeast of Santa Barbara.

Xirrus, Inc.

370 North Westlake Blvd, Suite 200

Westlake Village, CA 91362

USA

Tel: 1.805.497.0955

Fax: 1.805.449.1180

www.xirrus.com

support.xirrus.com

Wi-Fi Array

350 Appendix C: Technical Support

Wi-Fi Array

Glossary of Terms 351

Glossary of Terms

802.11a

A supplement to the IEEE 802.11 WLAN specification that describes radio

transmissions at a frequency of 5 GHz and data rates of up to 54 Mbps.

802.11b

A supplement to the IEEE 802.11 WLAN specification that describes radio

transmissions at a frequency of 2.4 GHz and data rates of up to 11 Mbps.

802.11d

A supplement to the Media Access Control (MAC) layer in 802.11 to promote

worldwide use of 802.11 WLANs. It allows Access Points to communicate

information on the permissible radio channels with acceptable power levels for

user devices. Because the 802.11 standards cannot legally operate in some

countries, 802.11d adds features and restrictions to allow WLANs to operate

within the rules of these countries.

802.11g

A supplement to the IEEE 802.11 WLAN specification that describes radio

transmissions at a frequency of 2.4 GHz and data rates of up to 54 Mbps.

802.1Q

An IEEE standard for MAC layer frame tagging (also known as encapsulation).

Frame tagging uniquely assigns a user-defined ID to each frame. It also enables a

switch to communicate VLAN membership information across multiple (and

multi-vendor) devices by frame tagging.

AES

(Advanced Encryption Standard) A data encryption scheme that uses three

different key sizes (128-bit, 192-bit, and 256-bit). AES was adopted by the U.S.

government in 2002 as the encryption standard for protecting sensitive but

unclassified electronic data.

Wi-Fi Array

352 Glossary of Terms

authentication

The process that a station, device, or user employs to announce its identify to

the network which validates it. IEEE 802.11 specifies two forms of authentication,

open system and shared key.

bandwidth

Specifies the amount of the frequency spectrum that is usable for data transfer. In

other words, it identifies the maximum data rate a signal can attain on

the medium without encountering significant attenuation (loss of power).

beacon interval

When a device in a wireless network sends a beacon, it includes with it a beacon

interval, which specifies the period of time before it will send the beacon again.

The interval tells receiving devices on the network how long they can wait in low

power mode before waking up to handle the beacon. Network administrators can

adjust the beacon interval—usually measured in milliseconds (ms) or its

equivalent, kilo-microseconds (Kmsec).

bit rate

The transmission rate of binary symbols ('0' and '1'), equal to the total number of

bits transmitted in one second.

BSS

(Basic Service Set) When a WLAN is operating in infrastructure mode, each access

point and its connected devices are called the Basic Service Set.

BSSID

The unique identifier for an access point in a BSS network. See also, SSID.

CDP

(Cisco Discovery Protocol) CDP is a layer 2 network protocol which runs on most

Cisco equipment and some other network equipment. It is used to share

information with other directly connected network devices. Information such as

the model, network capabilities, and IP address is shared. Wi-Fi Arrays can both

advertise their presence by sending CDP announcements, and gather and display

information sent by neighbors.

Wi-Fi Array

Glossary of Terms 353

cell

The basic geographical unit of a cellular communications system. Service

coverage of a given area is based on an interlocking network of cells, each with a

radio base station (transmitter/receiver) at its center. The size of each cell is

determined by the terrain and forecasted number of users.

channel

A specific portion of the radio spectrum—the channels allotted to one of

the wireless networking protocols. For example, 802.11b and 802.11g use 14

channels in the 2.4 GHz band, only 3 of which don't overlap (1, 6, and 11). In the 5

GHz band, 802.11a uses 8 channels for indoor use and 4 for outdoor use, none of

which overlap. In the U.S., additional channels are available, to bring the total to

24 channels.

CoS

(Class of Service) A category based on the type of user, type of application,

or some other criteria that QoS systems can use to provide differentiated classes of

service.

default gateway

The gateway in a network that a computer will use to access another network if

a gateway is not specified for use. In a network using subnets, a default gateway

is the router that forwards traffic to a destination outside of the subnet of

the transmitting device.

DHCP

(Dynamic Host Configuration Protocol) A method for dynamically assigning IP

addresses to devices on a network. DHCP issues IP addresses automatically

within a specified range to client devices when they are first powered up.

DHCP lease

The DHCP lease is the amount of time that the DHCP server grants to the DHCP

client for permission to use a particular IP address. A typical DHCP server allows

its administrator to set the lease time.

Wi-Fi Array

354 Glossary of Terms

DNS

(Domain Name System) A system that maps meaningful domain names with

complex numeric IP addresses. DNS is actually a separate network—if one DNS

server cannot translate a domain name, it will ask a second or third until a server

is found with the correct IP address.

domain

The main name/Internet address of a user's Internet site as registered with

the InterNIC organization, which handles domain registration on the Internet. For

example, the “domain” address for Xirrus is: http://www.xirrus.com, broken

down as follows:

zhttp:// represents the Hyper Text Teleprocessing Protocol used by all Web

pages.

zwww is a reference to the World Wide Web.

zxirrus refers to the company.

zcom specifies that the domain belongs to a commercial enterprise.

DTIM

(Delivery Traffic Indication Message) A DTIM is a signal sent as part of a beacon

by an access point to a client device in sleep mode, alerting the device to a packet

awaiting delivery.

EAP

(Extensible Authentication Protocol) When you log on to the Internet, you're most

likely establishing a PPP connection via a remote access server. The password,

key, or other device you use to prove that you are authorized to do so is controlled

via PPP’s Link Control Protocol (LCP). However, LCP is somewhat inflexible

because it has to specify an authentication device early in the process. EAP allows

the system to gather more information from the user before deciding which

authenticator to use. It is called extensible because it allows more authenticator

types than LCP (for example, passwords and public keys).

Wi-Fi Array

Glossary of Terms 355

EDCF

(Enhanced Distributed Coordinator Function) A QoS extension which uses

the same contention-based access mechanism as current devices but adds “offset

contention windows” that separate high priority packets from low priority

packets (by assigning a larger random backoff window to lower priorities than to

higher priorities). The result is “statistical priority,” where high-priority packets

usually are transmitted before low-priority packets.

encapsulation

A way of wrapping protocols such as TCP/IP, AppleTalk, and NetBEUI in

Ethernet frames so they can traverse an Ethernet network and be unwrapped

when they reach the destination computer.

encryption

Any procedure used in cryptography to translate data into a form that can be

decrypted and read only by its intended receiver.

Fast Ethernet

A version of standard Ethernet that runs at 100 Mbps rather than 10 Mbps.

FCC

(Federal Communications Commission) US wireless regulatory authority.

The FCC was established by the Communications Act of 1934 and is charged with

regulating Interstate and International communications by radio, television, wire,

satellite and cable.

frame

A packet encapsulated to travel on a physical medium, like Ethernet or Wi-Fi. If a

packet is like a shipping container, a frame is the boat on which the shipping

container is loaded.

Gigabit 1

The primary Gigabit Ethernet interface. See also, Gigabit Ethernet.

Gigabit 2

The secondary Gigabit Ethernet interface. See also, Gigabit Ethernet.

Gigabit Ethernet

The newest version of Ethernet, with data transfer rates of 1 Gigabit (1,000 Mbps).

Wi-Fi Array

356 Glossary of Terms

Group

A user group, created to define a set of attributes (such as VLAN, traffic limits,

and Web Page Redirect) and privileges (such as fast roaming) that apply to all

users that are members of the group. This allows a uniform configuration to be

easily applied to multiple user accounts. The attributes that can be configured for

user groups are almost identical to those that can be configured for SSIDs.

host name

The unique name that identifies a computer on a network. On the Internet,

the host name is in the form comp.xyz.net. If there is only one Internet site

the host name is the same as the domain name. One computer can have more than

one host name if it hosts more than one Internet site (for example, home.xyz.net

and comp.xyz.net). In this case, comp and home are the host names and xyz.net is

the domain name.

IPsec

A Layer 3 authentication and encryption protocol. Used to secure VPNs.

MAC address

(Media Access Control Address) A 6-byte hexadecimal address assigned by a

manufacturer to a device.

Mbps

(Megabits per second) A standard measure for data transmission speeds (for

example, the rate at which information travels over the Internet). 1 Mbps denotes

one million bits per second.

MTU

(Maximum Transmission Unit) The largest physical packet size—measured in

bytes—that a network can transmit. Any messages larger than the MTU are

divided into smaller packets before being sent. Every network has a different

MTU, which is set by the network administrator. Ideally, you want the MTU to be

the same as the smallest MTU of all the networks between your machine and

a message's final destination. Otherwise, if your messages are larger than one of

the intervening MTUs, they will get broken up (fragmented), which slows down

transmission speeds.

Wi-Fi Array

Glossary of Terms 357

NTP

(Network Time Protocol) An Internet standard protocol (built on top of TCP/IP)

that ensures the accurate synchronization (to the millisecond) of computer clock

times in a network of computers. Running as a continuous background client

program on a computer, NTP sends periodic time requests to servers, obtaining

server time stamps and using them to adjust the client's clock.

packet

Data sent over a network is broken down into many small pieces—packets—by

the Transmission Control Protocol layer of TCP/IP. Each packet contains the

address of its destination as well the data. Packets may be sent on any number of

routes to their destination, where they are reassembled into the original data. This

system is optimal for connectionless networks, such as the Internet, where there

are no fixed connections between two locations.

PLCP

(Physical Layer Convergence Protocol) Defined by IEEE 802.6, a protocol

specified within the Transmission Convergence layer that defines exactly how

cells are formatted within a data stream for a particular type of transmission

facility.

PoGE

This refers to the optional Xirrus XP1 Power over Gigabit Ethernet modules that

provide DC power to Arrays. Power is supplied over the same Cat 5e or Cat 6

cable that supplies the data connection to your gigabit Ethernet switch, thus

eliminating the need to run a power cable. See “Contact Information” on page 349

for a list of Xirrus PoGE modules and the modules that are compatible with each

Array.

preamble

Preamble (sometimes called a header) is a section of data at the head of a packet

that contains information that the access point and client devices need when

sending and receiving packets. PLCP has two structures, a long and a short

preamble. All compliant 802.11b systems have to support the long preamble.

The short preamble option is provided in the standard to improve the efficiency

of a network's throughput when transmitting special data, such as voice, VoIP

(Voice-over IP) and streaming video.

Wi-Fi Array

358 Glossary of Terms

private key

In cryptography, one of a pair of keys (one public and one private) that are created

with the same algorithm for encrypting and decrypting messages and digital

signatures. The private key is provided only to the requestor and never shared.

The requestor uses the private key to decrypt text that has been encrypted with

the public key by someone else.

PSK

(Pre-Shared Key) A TKIP passphrase used to protect your network traffic in WPA.

public key

In cryptography, one of a pair of keys (one public and one private) that are created

with the same algorithm for encrypting and decrypting messages and digital

signatures. The public key is made publicly available for encryption and

decryption.

QoS

(Quality of Service) QoS can be used to describe any number of ways in which

a network provider prioritizes or guarantees a service's performance.

RADIUS

(Remote Authentication Dial-In User Service) A client-server security protocol,

developed to authenticate, authorize, and account for dial-up users. The RADIUS

server stores user profiles, which include passwords and authorization attributes.

RSSI

(Received Signal Strength Indicator) A measure of the energy observed by an

antenna when receiving a signal.

SDMA

(Spatial Division Multiple Access) A wireless communications mode that

optimizes the use of the radio spectrum and minimizes cost by taking advantage

of the directional properties of antennas. The antennas are highly directional,

allowing duplicate frequencies to be used for multiple zones.

SNMP

(Simple Network Management Protocol) A standard protocol that regulates

network management over the Internet.

Wi-Fi Array

Glossary of Terms 359

SNTP

(Simple Network Time Protocol) A simplified version of NTP. SNTP can be used

when the ultimate performance of the full NTP implementation described in RFC

1305 is not needed or justified.

SSH

(Secure SHell) Developed by SSH Communications Security, Secure Shell is a

program to log into another computer over a network, to execute commands in a

remote machine, and to move files from one machine to another. It provides

strong authentication and secure communications over insecure channels. SSH

protects a network from attacks, such as IP spoofing, IP source routing, and DNS

spoofing. Attackers who has managed to take over a network can only force SSH

to disconnect—they cannot “play back” the traffic or hijack the connection when

encryption is enabled. When using SSH's slogin (instead of rlogin) the entire login

session, including transmission of password, is encrypted making it almost

impossible for an outsider to collect passwords.

SSID

(Service Set IDentifier) Every wireless network or network subset (such as a BSS)

has a unique identifier called an SSID. Every device connected to that part of the

network uses the same SSID to identify itself as part of the family—when it wants

to gain access to the network or verify the origin of a data packet it is sending over

the network. In short, it is the unique name shared among all devices in a WLAN.

subnet mask

A mask used to determine what subnet an IP address belongs to. An IP address

has two components: (1) the network address and (2) the host address. For

example, consider the IP address 150.215.017.009. Assuming this is part of a Class

B network, the first two numbers (150.215) represent the Class B network address,

and the second two numbers (017.009) identify a particular host on this network.

TKIP

(Temporal Key Integrity Protocol) Provides improved data encryption by

scrambling the keys using a hashing algorithm and, by adding an integrity-

checking feature, ensures that the encryption keys haven’t been tampered with.

transmit power

The amount of power used by a radio transceiver to send the signal out. Transmit

power is generally measured in milliwatts, which you can convert to dBm.

Wi-Fi Array

360 Glossary of Terms

User group

See Group.

VLAN

(Virtual LAN) A group of devices that communicate as a single network, even

though they are physically located on different LAN segments. Because VLANs

are based on logical rather than physical connections, they are extremely flexible.

A device that is moved to another location can remain on the same VLAN

without any hardware reconfiguration.

VLAN tagging

(Virtual LAN tagging) Static port-based VLANs were originally the only way to

segment a network without using routing, but these port-based VLANs could

only be implemented on a single switch (or switches) cabled together. Routing

was required to transfer traffic between unconnected switches. As an alternative

to routing, some vendors created proprietary schemes for sharing VLAN

information across switches. These methods would only operate on that vendor's

equipment and were not an acceptable way to implement VLANs. With the

adoption of the 802.1Q standard, traffic can be confined to VLANs that exist on

multiple switches from different vendors. This interoperability and traffic

containment across different switches is the result of a switch's ability to use and

recognize 802.1Q tag headers—called VLAN tagging. Switches that implement

802.1Q tagging add this tag header to the frame directly after the destination and

source MAC addresses. The tag header indicates:

1. That the packet has a tag.

2. Whether the packet should have priority over other packets.

3. Which VLAN it belongs to, so that the switch can forward or filter it

correctly.

WDS (Wireless Distribution System)

WDS creates wireless backhauls between arrays. These links between arrays may

be used rather than having to install data cabling to each array.

WEP

(Wired Equivalent Privacy) An optional IEEE 802.11 function that offers frame

transmission privacy similar to a wired network. The Wired Equivalent Privacy

generates secret shared encryption keys that both source and destination stations

can use to alter frame bits to avoid disclosure to eavesdroppers.

Wi-Fi Array

Glossary of Terms 361

Wi-Fi Alliance

A nonprofit international association formed in 1999 to certify interoperability of

wireless Local Area Network products based on IEEE 802.11 specification. The

goal of the Wi-Fi Alliance's members is to enhance the user experience through

product interoperability.

Wi-Fi Array

A high capacity Wi-Fi networking device consisting of multiple radios arranged

in a circular array.

WPA

(Wi-Fi Protected Access) A Wi-Fi Alliance standard that contains a subset of the

IEEE 802.11i standard, using TKIP as an encryption method and 802.1x for

authentication.

WPA2

(Wi-Fi Protected Access 2) WPA2 is the follow-on security method to WPA for

wireless networks and provides stronger data protection and network access

control. It offers Enterprise and consumer Wi-Fi users with a high level of

assurance that only authorized users can access their wireless networks. Like

WPA, WPA2 is designed to secure all versions of 802.11 devices, including

802.11a, 802.11b, 802.11g, and 802.11n, multi-band and multi-mode.

Xirrus Management System (XMS)

A Xirrus product used for managing large Wi-Fi Array deployments from a

centralized Web-based interface.

XP1 and XP8—Power over Gigabit Ethernet modules

See PoGE.

XPS—Xirrus Power System

A family of optional Xirrus products that provides power over Gigabit Ethernet.

See PoGE.

Wi-Fi Array

362 Glossary of Terms

Use this Space for Your Notes

Wi - Fi A r r ay

Index 363

Index

Symbols

1, 6, 7, 27, 32, 38, 40, 42, 45, 48, 49, 50,

52, 54, 60, 61, 73, 76, 77, 84, 89, 109,

134, 141, 148, 151, 152, 154, 157, 164,

168, 172, 182, 189, 204, 209, 214, 217,

227, 229, 231, 234, 235, 309, 312, 314,

316, 318, 321, 323, 325, 326, 327, 329,

333, 334, 336, 339

Numerics

4.9 GHz Public Safety Band 226

802.11a 6, 7, 14, 73, 189, 204, 214

802.11a/b/g 14, 30

802.11b 6, 7, 217

802.11b/g 14

802.11e 15

802.11g 6, 7

802.11i 7, 77, 134

802.11p 15

802.11q 15

802.1x 7, 42, 48, 336

abg2

intrusion detection 222

self-monitoring, loopback mode

223

AC power 42, 50, 52, 309, 312

Access Control List 164

access control lists (ACLs) 172

Access Panel 321

access panel

reinstalling 312

removing 309

ACLs 164

Admin ID 168

administration 164

Administrator Account 329

advanced intrusion detection 222

AES 15, 327

approved

setting rogues 109

APs 109, 182

rogues, blocking 222

APs, rogue

see rogue APs 221

Array 32, 54, 60, 61, 84, 141

assurance (radio loopback testing) 221

authentication 15

auto-blocking

rogue APs 222

auto-configuration 209

channel and cell size 221

backhaul

see WDS 46

backup unit

see standby mode 221

beam distribution 14

benefits 13

blocking

rogue APs 222

blocking rogue APs 221

broadcast

fast roaming 212

BSS 334

cdp 262

CDP (Cisco Discovery Protocol)

settings 149

cdp CLI command 262

cell

sharp cell 221

Wi-Fi Array

364 Index

cell size 325

auto-configuration 221

cell size configuration 221

channel

auto-configuration 221

configuration 221

list selection 221

public safety 221

channels

non-overlapping 15

character restrictions 89

Chassis Cover 318

chassis cover 318

Cisco Discovery Protocol

see cdp 262

Cisco Discovery Protocol (CDP) 149

CLI 76, 249

using to upgrade software image

344

CLI commands

see commands 262

Command Line Interface 7, 45, 249

configuration commands 260

getting help 250

getting started 250

inputting commands 250

sample configuration tasks 291

SSH 249

top level commands 252

commands

acl 260

admin 261

cdp 262

clear 263

configure 253

contact-info 264

date-time 265

dhcp-server 266

dns 267

file 268

filter 269

group 271

hostname 271

https 272

interface 273

load 274

location 274

management 275

more 275

no 276

quit 278

radius-server 278

reboot 279, 289

reset 279

run-tests 280

security 282

show 256

snmp 283

ssh 284

ssid 285

standby 285

statistics 259

syslog 286

telnet 287

vlan 289

Community String 326

configuration 133

express setup 134

configuration changes

applying 89

connection

tracking window 102

Contact Information 349

contact information 349

coverage

extended 14

coverage patterns 7

critical messages 86

Wi-Fi Array

Index 365

default settings 323

Default Value 327

DHCP 326

deployment 30, 38

ease of 15

DHCP 325

default settings 326

leases window 102

DHCP Server 151

DIMM 316

DIMM module

replacing 316

DNS 148

dynamic VLAN

overridden by group 199

EAP-MDS 15

EAP-TLS 15

EAP-TTLS 15

encryption 15

encryption method

recommended (WPA2 with AES)

166

setting 166

support of multiple methods 166

encryption method (encryption mode)

Open, WEP, WPA, WPA2, WPA-

Both 165

encryption standard

AES, TKIP, both 166

setting 166

Enterprise 1

event log

see system log 132

event messages 86

express setup 77, 134

external RADIUS server 802.1x 29

factory default settings 323

factory defaults 329

DHCP 326

fail-over

standby mode 221

failover 40

FAQs 334

Fast Ethernet 323

fast roaming 15, 99, 212

about 203

features 13, 154

feedback 87

filter

policy to set QoS 236

filter list 234

filter name 235

filters 233

statistics 130

FLASH 314

FLASH memory

replacing 314

frequently asked questions 334

FTP server 29

General Hints 333

getting started

express setup 134

glossary of terms 351

Group

management 198

group 196

CLI command 271

VLAN overrides dynamic VLAN

199

help button 87

Wi-Fi Array

366 Index

HyperTerminal 28

IAP 227

fast roaming 203

IEEE 339

installation 27, 49, 305

installing the MCAP-3616 52

mounting the unit 54

requirements 27

unpacking the unit 50

workflow 49

installation workflow 49

integrated radio module

replacing 318

interfaces 134

Web 83

Internet Explorer 28

intrusion detection 109, 222

configuration 221

setting as approved or known 109

IP Address 89, 157, 239

key features 13

Keyboard Shortcuts 330

keyboard shortcuts 330

known

setting rogues 109

Layer 3

fast roaming 203

leases, DHCP

viewing 102

list, access control

see access control list 172

list, MAC access

see access control list 172

log, system (event)

viewing window 132

logging in 89

loopback

see self-monitoring 303

loopback testing, radios 221

MAC 336

MIC 15

monitoring

intrusion detection 109

see intrusion detection 222

mounting the unit 54

NAT

table - see connection tracking 102

Netscape Navigator 28

network

interfaces 140

settings 141

network installation 27, 305

network status

connection

tracking window 102

routing table window 101

viewing leases 102

Network Time Protocol 152

non-overlapping channels 15

Open (encryption method) 165

overview 7

passphrase 77

password 89

PEAP 15, 231

Wi-Fi Array

Index 367

performance 13

Ping 239

planning

WDS 46

PoGE 10, 29

see Power over Gigabit Ethernet 10

power cord 309

power distribution 10

power outlet 27

Power over Gigabit Ethernet 2, 10, 17,

21, 27, 29, 42, 53

compatibility with Array models

349

Power over Gigabit Ethernet (PoGE) 10

power supply

replacing 321

power switch 309

print button 87

product installation 27, 305

product overview 7

product specifications 16, 21

public safety band 226

public safety channels 221

PuTTy 28

QoS 15, 358

filter, policy to set QoS 236

levels defined 190, 199

SSID 185, 190

about setting QoS 335

default QoS 327

user group 199

Quality of Service 15

see QoS 190, 199

quick reference guide 323

quick start

express setup 134

radio

self-test 223

radio assurance (loopback testing) 221

radio assurance (loopback) mode 223

radio distribution 13

RADIUS 164

RADIUS server 29

remote DC power 10

Reset 239

intrusion detection 221

spectrum management 221

RF configuration 221

RF management

see channel 221

RF resilience 221

RFprotect, see XDM 222

roaming 15, 99, 212

roaming, fast 203

rogue AP

blocking 222

rogue APs

blocking 221

rogue detection 14

rogues

setting as known or approved 109

root command prompt 252

routing table window 101

schedule

auto channel configuration 221

Secure Shell 28

security 7, 15

see group 196

self-monitoring 222, 303

options 223

self-test

radio loopback mode 223

Wi-Fi Array

368 Index

serial port 28

Services 151

servicing 307

servicing the unit 305

setup, express 134

sharp cell 221

setting in WMI 225

SNMP 11, 134

software image

upgrading via CLI 344

Software Upgrade 239

specifications 16, 21

spectrum (RF) management 221

SSH 28

SSID

about usage 335

QoS 185, 190

about using 335

QoS, about usage 335

standby mode 221

stations

rogues 109

statistics 130

statistics per station 131

statistics

filters 130

per-station 131

stations 130

WDS 129

status bar 87

submitting comments 87

System Configuration Reset 239

system log

viewing window 132

system memory

replacing 316

System Reboot 239

System Tools 239

technical support

contact information 349

frequently asked questions 334

timeout 239

TKIP 15

Tools 239

tunneled

fast roaming 212

unknown

setting rogues 109

unpacking the unit 50

upgrading software image

via CLI 344

user group 196

QoS 199

user interface 83

VLAN

dynamic

overridden by group 199

group (vs. dynamic VLAN) 199

voice

fast roaming 203

VoWLAN 15

wall thickness considerations 30

warning messages 86

WDS 229

about 46

planning 46

statistics 129

Web interface 83

structure and navigation 86

WEP 15, 164, 336

Wi-Fi Array

Index 369

WEP (Wired Equivalent Privacy)

encryption method 165

workflow 49

WPA 164

WPA (Wi-Fi Protected Access) and

WPA2

encryption method 166

WPA2 7

Xirrus Defense Module (XDM) 222

Xirrus Management System 7, 11, 15,

Xirrus Power over Gigabit Ethernet 27,

Xirrus Power over Gigabit Ethernet

(PoGE) 10

Xirrus Roaming Protocol 15, 99, 212

XMS 7, 11, 15, 29

setting IP address of 157

XP1, XP8

see Power over Gigabit Ethernet 10

XPS 27, 29

XRP 15, 99, 212

XRPS 29

XS16

management 91, 133, 239

XS-3900

management 91, 133, 239

Wi-Fi Array

370 Index

Cambium Networks XN16 Wireless LAN Array User Manual XN PDF

Xirrus, Inc. Wireless LAN Array XN PDF

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