Cisco Cisco Access Registrar 4.2 Spécifications télécharger pdf (Page 295)

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Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 6 Configuring WLANsWireless Device Access

Configuring WLANs

Note In Layer 2 LWAPP mode when WMM is enabled on any WLAN, the access point sends its

priority information on the 802.1q PRI field, with VLAN ID 0 based on the WMM clients’ QoS

control fields. In Layer 3 LWAPP mode, this information is carried in the DSCP of the LWAPP

packet’s IP header. Some non-Cisco access switches to which the access point is connected

might handle VLAN tag ID 0 inappropriately. For example, the switch might drop packets that

are tagged with VLAN ID 0, causing the access point with WMM enabled to be unable to join

the controller in Layer 2 LWAPP mode and to reboot repeatedly. Therefore, when the controller

is in Layer 2 mode and WMM is enabled, you must put the access points on the trunk port of the

switch to enable them to join the controller. If the access point is unable to join the controller

after connecting to the trunk port of the switch, you must use the controller in Layer 3 LWAPP

mode in order to use WMM.

Step 5 Check the 7920 AP CAC check box if you want to enable 7920 support mode for phones that require

access point-controlled CAC. The default value is unchecked.

Step 6 Check the 7920 Client CAC check box if you want to enable 7920 support mode for phones that require

client-controlled CAC. The default value is unchecked.

Note You cannot enable both WMM mode and client-controlled CAC mode on the same WLAN.

Step 7 Click Apply to commit your changes.

Step 8 Click Save Configuration to save your changes.

Using the CLI to Configure QBSS

Using the controller CLI, follow these steps to configure QBSS.

Step 1 To determine the ID number of the WLAN to which you want to add QBSS support, enter this command:

show wlan summary

Step 2 To disable the WLAN, enter this command:

config wlan disable wlan_id

Step 3 To configure WMM mode for 7921 phones and other devices that meet the WMM standard, enter this

command:

config wlan wmm {disabled | allowed | required} wlan_id

where

• The disabled parameter disables WMM mode on the WLAN.

• The allowed parameter allows client devices to use WMM on the WLAN.

• The required parameter requires client devices to use WMM. Devices that do not support WMM

cannot join the WLAN.

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