What is the difference between a Primary WLC and a Primary Backup WLC?

[Nigel Bowden]

Hi,

Reading about WLC high availability, in this doc:

http://www.cisco.com/application/pdf/paws/107250/ha-wlc.pdf

What is the difference between the Primary/Secondary/Tertiary controller, and the Primary Backup/Secondary Backup controller?

Its not clear from the doc what the functional difference is between the two types.

Thanks in advance.

Nigel.

[JOHN SAINATO]

So for those of us that are really thick... If I have 2 controllers WLC1 and WLC2 and I want WLC2 to be the secondary controler for ap fail over. Do I configure it as the Back-up Primary Controller on WLC1?

[Leo Laohoo]

Regardless of your firware, my answer is YES.