Environment : This article applies to Aruba Mobility Controllers running ArubaOS version 126.96.36.199.
Factors such as channel utilization, noise floor, error rate and retry rate affects Quality of a channel. Aruba’s channel quality aware Adaptive Radio Management (ARM) technology boosts reliability and performance by enabling ARM to select channels for the APs based on the channel quality. When the channel quality of an AP goes down and remains below the threshold value for a specified wait time, the ARM moves the AP to a better channel.
Channel Quality Threshold can be set, below which ARM initiates a channel change. The range of supported values is 0-100%, and the default value is 70%. If channel quality is below the specified channel quality threshold for this wait time period, ARM initiates a channel change. The range of supported values is 1-3600 seconds, and the default is 120 seconds.
Configuring from the Web GUI :
Navigate to Configuration> Wireless > Configuration > RF management
and choose the ARM>Advanced for a or g radio
Select the "Channel Quality Aware ARM" checkbox to allow ARM to initiate a channel change due to low quality on the current channel.
Configuring from the CLI :
First create or Edit a ARM Profile as below
(Aruba7200)(config) #rf arm-profile test
Now Map the ARM profile to Desired Radio Profile
(Aruba7200) (config) #rf dot11a-radio-profile default
(Aruba)7200 (802.11a radio profile "default") # arm-profile test