This field controls whether this specific authorization-server row applies to administrative userLogin sessions, 802.1X endpoint authorization, or both, letting an admin dedicate certain authorization servers to gating what endpoint devices can do versus what administrators can do on the switch itself. For example, a service-provider deployment might set this to dot1x(2) on the row for a server that authorizes VLAN assignment for connecting customer devices, while a separate row set to userLogin(1) authorizes which configuration commands network staff can run.