N+1 redundancy and different mobility groups

[gnijs]

Is it possible to backup 2 controllers with 2 different mobility groups (for example GROUP1 and GROUP2) to the same backup controller (running HA SKU N+1 (7.4)) ?

Since a controller can only be configured in 1 mobility group, this doesn't seem to be possible. Can someone confirm ?

regards,

Geert

[Abhishek Abhishek · Accepted solution]

Hello,

As per your query i can suggest you the following solution-

In all Wireless LAN Controller (WLC) versions earlier than 4.2.61.0, when a WLC goes "down," the LAP registered to this WLC can failover only to another WLC of the same Mobility Group, if the LAP is configured for failover. From Cisco WLC version 4.2.61.0 and later, a new feature called Backup Controller Support is introduced for access points to failover to controllers even outside the Mobility Group. Refer to Wireless LAN Controller and Light Weight Access Points Failover Outside the Mobility Group Configuration Example for more information.

Hope this will help you.