The APs continue to work seamlessly even if the controller is down or unreachable
•No impact to existing clients or incoming clients for all authentication methods
Please see the release notes for 5.9.0. There is a new feature called DYNAMIN VC
Dynamic VC – Provides redundancy in the case of VC (AP) failure. Dynamic VC enables an AP to take on the role of VC when it is elected as RF-domain manager. Supports explicit secondary IP address configuration for seamless management access.