Manual

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Cisco IOS Software Configuration Guide for Cisco Aironet Access Points

OL-30644-01

Chapter 6 Configuring Radio Settings

Performing a Carrier Busy Test

You can perform a carrier busy test to check the radio activity on wireless channels. During the carrier

busy test, the wireless device drops all associations with wireless networking devices for 4 seconds while

it conducts the carrier test and then displays the test results.

In privileged EXEC mode, enter this command to perform a carrier busy test:

dot11 interface-number carrier busy

For interface-number, enter dot11radio 0 to run the test on the 2.4-GHz radio, or enter dot11radio 1 to

run the test on the 5-GHz radio.

Use the show dot11 carrier busy command to re-display the carrier busy test results.

Configuring VoIP Packet Handling

You can improve the quality of VoIP packet handling per radio on access points by enhancing 802.11

MAC behavior for lower latency for the CoS 5 (Video) and CoS 6 (Voice) user priorities.

Follow these steps to configure VoIP packet handling on an access point:

Step 1 Using a browser, log in to the access point.

Step 2 Click Services in the task menu on the left side of the web-browser interface.

Step 3 When the list of Services expands, click Stream.

The Stream page appears.

Step 4 Click the tab for the radio to configure.

Step 5 For both CoS 5 (Video) and CoS 6 (Voice) user priorities, choose Low Latency from the Packet Handling

drop-down list and enter a value for maximum retries for packet discard in the corresponding field.

The default value for maximum retries is 3 for the Low Latency setting (Figure 6-3). This value indicates

how many times the access point will try to retrieve a lost packet before discarding it.

Note You may also configure the CoS 4 (Controlled Load) user priority and its maximum retries value.

Step 6 Click Apply.