Cisco Cisco Access Registrar 4.2 Specifikace stáhnout pdf (Strana 465)

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Cisco Wireless LAN Controller Configuration Guide

OL-13826-01

Chapter 10 Configuring Radio Resource ManagementWireless Device Access

Configuring Dynamic RRM

• To specify the channel set used for dynamic channel allocation (DCA), enter this command:

config advanced {802.11a | 802.11b} channel {add | delete} channel_number

You can enter only one channel number per command. This command is helpful when you know that

the clients do not support certain channels because they are legacy devices or they have certain

regulatory restrictions.

Step 3 Perform one of the following:

• To have RRM automatically set the transmit power for all 802.11a or 802.11b/g radios at periodic

intervals, enter this command:

config {802.11a | 802.11b} txPower global auto

• To have RRM automatically reset the transmit power for all 802.11a or 802.11b/g radios one time,

enter this command:

config {802.11a | 802.11b} txPower global once

• To manually change the default transmit power setting of -65 dBm, enter this command:

config advanced {802.11a | 802.11b} tx-power-control-thresh threshold

where threshold is a value from -50 to -80 dBm. Increasing this value (between -50 and -65 dBm)

causes the access points to operate at higher transmit power rates. Decreasing the value has the

opposite effect.

In applications with a dense population of access points, it may be useful to decrease the threshold

to -75 or -80 dBm in order to reduce the number of BSSIDs (access points) and beacons seen by the

wireless clients. Some wireless clients may have difficulty processing a large number of BSSIDs or

a high beacon rate and may exhibit problematic behavior with the default threshold.

Note See the Power Threshold description in Table 10-1 for more information.

Step 4 Enter this command to enable the 802.11a or 802.11b/g network:

config {802.11a | 802.11b} enable

Note To enable the 802.11g network, enter config 802.11b 11gSupport enable after the config

802.11b enable command.

Step 5 Enter this command to save your settings:

save config

Using the CLI to Debug RRM Issues

Use these commands to troubleshoot and verify RRM behavior:

debug airewave-director ?

where ? is one of the following:

• all—Enables debugging for all RRM logs.

• channel—Enables debugging for the RRM channel assignment protocol.

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