07-19-2013 12:06 PM
What are the basic parameters used by ARM to select channel?
The two basic parameters used by ARM to select channel is “coverage index” and “interference index” which can be found under the command “show ap arm rf-summary ap-name xxxxx”.
The coverage index table and interference index table are based on the channel scanning results of each AP. The channel with lower interference index value and higher coverage index value is most likely selected. Besides these two major parameters, there are a lot of other factors which are also used in ARM channel selection algorithm, such as if awareness of rogue AP, VOIP/Video applications, power save mode scanning is enabled, if client-match function is enabled, then spectrum load balancing, band steering, sticky client situation will be considered also.