08-02-2011 12:46 PM
- Install new licenses
- In config, change port numbers to match new hardware
- Get the APs into their groups
- Do I have to manually re-add the APs to their AP-Group? Or will the APs automatically start talking to the controller if the same ap-group exists on the new controller?
- What is the cleanest way to move the config? Do a flash backup and restore? Then do a diff of the running config between the old and new controllers? Paste the differences into the new controller?
Any ideas would be appreciated.
08-02-2011 01:05 PM
As long as the AP groups and VLANs exist on the new config, the APs will re-register without re-provisioning. The other thing to keep in mind is that the ARP table on your router (if the APs aren't on the same subnet as controller) may hold on to the ARP entry for the old controller. Clear ARP on the device if the APs wont talk to the controller.
Dont do a flash back/restore. That would work (except for licenses) if the controllers were the same model, but not if they are different hardware.
If you have any captive portal pages setup, you will lose those. You can view them on the old controller, view source and save it as an html file if you need them. Just make sure to get the jpgs, gifs and other stuff as well.
08-02-2011 05:08 PM
I just did this last week. did pretty much the same thing that olino mentioned - and it worked fine.
08-03-2011 03:31 PM
in the flashabckup
I'm using certs signed with a key I made using openssl - not using the key on the controller.
if you've gotten certs using a csr generated on the controller (ie based on the controller's private key) - you will need to reissue your certs from a csr generated on the new M3 controller (using it's private key)