Hi Ron
Once controllers are upgraded to 9.X will the newly installed access points upgrade automatically to 9.X or any extra config has to be done......
I have read the guide which have referred to, I cannot find how to setup an active-active high availability.......
And regarding your earlier answer for same SSID with different vlans, do I need a trunk port on controller carrying all those vlans or single L3 management interface IP pointing route towards core is enough..
And what about switch side port on which ap is connected. Is ap vlan as untagged is enough or I need to create user vlans also as tagged on that port.