Hi,
I have deployed 2 aruba 7210 controllers in active-active mode ( local controllers). The control plane traffic is handled by the master controller sitting across a WAN. I have created 2 AP groups in the master with the LMS IP and BackUP LMS IP pointing to the VIP1 and VIP2 of both the local controllers..
Initially, I placed all APs in a building randomly in the 2 AP groups and roaming was very flaky and connections were dropping off. I then moved all the APs in a single floor into 1 AP group and roaming got better, but is there a way we can sync user DB between the 2 local controllers so that authenticated clients can roam ?
if it's same VLAN and subnet on two different controllers, the original AP is tunneling all traffic to the controller from the client. If a client roams to another AP connected to a another controller, does the new AP then know to tunnel that client's traffic back to the original controller?