3 Qty Cisco 2504 Wireless Controllers Availability Group

[ishara]

We have 3 qty Cisco 2504 WLCs. 2 qty are configured as redundant. Another 1 WLC runs separately. Is there any method for All 3 WLCs configured as the Same availability group and WLC as primary, secondary, and Tertiary? 

[marce1000 · Accepted solution]

  - Yes   , by using N+1 High Availability , where you sync the controllers configuration (manually during setup) and assign an Primary , secondary and tertiary controller  for the access points , 

 M.

[lemuel_isaac · Accepted solution]

@ishara if you are asking whether it is possible in High Availability mode (3 WLCs as Active-Standby1-Standby2;) then answer is No. Please choose @marce1000 's N+1 model in this case. Another suggestion would be to continue your existing 2 units as HA pair and use the 3rd unit as standalone WLC. so your APs can have Primary base as your HA pair, and Secondary base, the 3rd unit as Standalone WLC. If unit 1 fails, unit 2 will take over in sub second. If both unit 1 and 2 fails, APs will join unit 3 in approx. 10-30 seconds. pls make sure that config on unit 3  be same as HA pair, as they don't sync automatically. 

Lemuel