We are implementing a number of WLCs at different sites that are connected by a WAN (site-to-site links). I'd like to use the WLC at site A as the backup WLC for site B and that at site B as the backup for site A.
I've reviewed the documents that I can find on Cisco and the threads in this forum, but haven't found a definitive guide yet - maybe I haven't recognised it.
Can anyone point me in the right direction or provide configuration advice?
Thanks in advance