This read-create DisplayString (1-80 characters) names an AAA server, matching a name defined in the server configuration table, as a member of an ordered authentication server list; a value of 'local' means authentication is performed on-device instead. An admin builds ordered fallback lists here, such as trying an LDAP server first and falling back to local accounts. For example, a list entry named 'local' as the last item ensures administrators can still log in even if every remote AAA server in the list is unreachable.