How to find RF-Domain manager for Distributed sites.
Find AP that is the RF-Domain manager for Distributed (WiNG/ExtremeMobility) sites
CloudAppliance - Distributed sites WiNG AP ExtremeMobility AP
indicates which AP in a Distributed site acts as the domain manager (RFDM).
The RFDM communicates directly with ExtremeCloud Appliance collecting statistics, access point upgrade information, and Smart-RF activities. Understanding which AP is the RFDM can help with troubleshooting.