Allow you to manage a configured authentication server to an ordered list in a server group, for AP and GW you can configure server rules to derive a user role,
VLAN ID or VLAN name from attributes returned by the server during authentication.
For CX, A maximum of 32 AAA server-groups are supported. Out of these four are default server-groups (local, none, radius, tacacs) and the rest 28 can be user configured.
For AP, A maximum of 16 AAA server-groups are supported for per device. And all server-groups can be user configured.
This feature is applicable for all devices.