Failover Priority for Access Points
If a controller has the maximum number of supported APs joined to it, the failover priority feature allows it to disconnect a lower priority AP, if a higher priority AP tries to join.
The default priority is 1, the lowest priority; set higher priorities on APs if you want to enable this feature.
The following are some guidelines for configuring failover priority for access points:
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You can configure your wireless network so that the backup controller embedded controller recognizes a join request from a higher-priority access point, and if necessary, disassociates a lower-priority access point as a means to provide an available port.
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Failover priority is not in effect during the regular operation of your wireless network. It takes effect only if there are more association requests after a controller an embedded controller failure than there are available backup controller slots.
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You can enable failover priority on your network and assign priorities to the individual access points.
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By default, all access points are set to priority level 1, which is the lowest priority level. Therefore, you need to assign a priority level only to those access points that warrant a higher priority.
This section contains the following subsections: