We replaced our 6 M3 controllers with 3 7240s ( 1 Master and 2 Locals) we have approxiametly 2,100 APs (125,105,135) :
Planning:
- You should probably upgrade your current environment to the latest 6.2.1.x
- We decided to disable mobility and use the two 7240s to separate the campus as north/south and that way all the buildings in close proximity will be using the same VLAN pools
- Then bring in parallel the 7240's controllers add all the required configuration which is not pushed from the master , then you could attach these locals to the current master this way those can have the same config and the one you are planning to use as the master make it a master backup to your current master.
- We decided to start our config on the 7240's from scratch and remove all the unnecessary config
- On the existing controllers do a backup flash this is a best practice for a rapid recovery
- Transfer all your licenses from the M3's using the licensing.arubanetworks.com
- Apply the new licenses to the 7240'a
- Once your new controllers are ready can move the APs over updating the AP System-Profile (LMS IP)
- Make sure you update all the radius Nad IPs
Issues:
Most of the issues we experienced initially were fixed by Aruba.
We are now using 6.2.1.3 AOS and we been testing AOS 6.3.1.x using 225APs in our Test controller to take advantage of the centralize licensing 802.11ac and Client Match its been good so far
#7240