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Contributor I
Posts: 81
Registered: ‎03-18-2013

APs Failing over to backup Controller in HA system

I have two 7240 controllers running 6.3.1.14 setup in a dual/dual HA system. One controller is a local with all of the AP configured for that controller. The other controller is a Master with no APs configured to be on it other than failover. I am seeing APs failing over to the master (may 15 or 20 out of 520) and they won't go back to their original controller unless I reboot them. The HA setup is the same across my entire enterprise but this is the only location experiencing this issue. IP Mobility is not enabled but I do have LMS IP active. Any ideas/suggestions.

MVP
Posts: 4,271
Registered: ‎07-20-2011

Re: APs Failing over to backup Controller in HA system

Do you have preemption enabled ?

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Victor Fabian
Lead Mobility Engineer @ Integration Partners
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Contributor I
Posts: 81
Registered: ‎03-18-2013

Re: APs Failing over to backup Controller in HA system

No, I do not have preemption enabled.

MVP
Posts: 1,408
Registered: ‎05-28-2008

Re: APs Failing over to backup Controller in HA system

When HA roles of the controllers are set to dual, the active controller will be determine by the LMS-IP setting in the AP system profile and the standby controller will be selected from the list of controllers listed in the HA group in the round-robin fashion.


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