Wireless Access

I'm upgrading a single 3600 controller to a  (2) 7200master-master controller setup.  What's the best approach to doing this?  My current idea is to join one the first 7200 controller with the old 3600 controller in master-master between them, test, then replace the 3600 with the other 7200.  What are your thoughts, and any gotcha's that I may be overlooking?

Please refer to the link below:

http://community.arubanetworks.com/t5/Unified-Wired-Wireless-Access/Migrate-from-3200-Controller-to-7210/m-p/80000/highlight/true#M14798

I've already migrated 3600 to single 7200.  I'm asking more about migrating from single to multi.

Is it going to be Active-Active or Active-Standby ?

Active-Standby with VRRP and db synch between them.

Both controllers will be in the same L2 segment ?

To migrate existing config from the 3600 to 7200 (Active Master)

- Upgrade the 3600 to 6.2 and Up

- Add the 7200 as a local to the 3600 that way it will push the config

- Add the licenses

- Then Make the 7200 a Master 

-  Follow this :

http://www.arubanetworks.com/vrd/CampusWNetworksVRD/wwhelp/wwhimpl/common/html/wwhelp.htm#context=CampusWNetworksVRD&file=Chap5_Redundancy.html

What if there is no L2 between the controllers?

The controllers will be going in 2 separate Datacenters, so I guess I'll have to do LMS/BLMS type redundancy? 

You can also use HA for your APs if you are running 6.3 AOS.

Unfortunately there are are SSIDs that are locally bridged, and according to the documentation HA only works when the SSIDs are tunneled.

What if there is no L2 between the controllers? The controllers will be going in 2 separate Datacenters, so I guess I'll have to do LMS/BLMS type redundancy? 

That is correct.

In this case you configure Master/Local so this way both controllers will have the same consistent config