When the NetEngine 8000 F connects to multiple RADIUS servers, you can configure the source interface of each RADIUS server on the NetEngine 8000 F to identify the route between the NetEngine 8000 F and each RADIUS server.
On the NetEngine 8000 F, you can configure the interface that connects to a RADIUS server as the source interface of the RADIUS server. On the NetEngine 8000 F, you can configure the source interface in the system view or in the view of a RADIUS server group. Therefore, the RADIUS servers in the RADIUS server group use this source interface to interact with the NetEngine 8000 F. If the source interface of the RADIUS server group is not configured, the RADIUS servers use the global source interface.