topic WLC redundancy in Wireless

WLC redundancy

Rafael Jimenez — Sun, 04 Jul 2021 01:34:36 GMT

I have a question about the wlc with the following scenario:

1- I have two 50 APs WLAN Controllers (WLC1, WLC2).

2- I have 20 APs in total.

3- The APs are configured with primary and secondary WLC.

4- Ten of the 20 APs are associated to WLC1 as primary.

5- The other ten APs are associated to WLC2 as secondary.

I need to know what would happen with the APs associated to the WLC1 if the WLC1 fails?.

How fast will be the reassociation to the WLC2.

Are the tcp/udp/etc conections broken?.

Its a possible solution for redundancy?.

Re: WLC redundancy

Leo Laohoo — Wed, 03 Mar 2010 21:12:32 GMT

DO you have HREAP enabled?
What firmware are you running?

Re: WLC redundancy

George Stefanick — Thu, 04 Mar 2010 01:57:13 GMT

Good question. The AP will drop for 5 seconds, flash colors and go right to green (when no one is associated or deep blue if someone associates right away).

You can test this ... take a test ap, put it on WLC1 then change the primary to WLC2 and enable AP Fall back ... You will see the AP move over to the other controller in a minute or so ...

In any case, you break the LWAPP tunnel and the AP rejoins a new controller and establishes a new tunnel.