I'm looking at potentially having two clusters of controllers in order to be able to have AOS 8.4 (which has some features I really want) but also to maintain some older devices that we may not be able to replace in time.
So, if I have two clusters, one running 8.4 and the other running 8.2, both under the same MM, will the COA VRRP play nicely on the same vlan or do I have to have a different vlan for each cluster?
Is there a mechanism for clusters to play nicely with each other, so if a user roams from cluster1 to cluster2, and we have enforce DHCP enabled, what happens?
In an ideal world, this wouldn't matter and we'd be able to groups APs onto cluster geographically... but that's not how our world actually works.