When a service name is applied to any service context, the name and service ID association is registered with the system. A service name cannot be assigned to more than one service ID. Special consideration is made for a service name that is assigned to a VPLS service that has the configure>service>vpls>allow-ip-int-binding command enabled. If a name is applied to the VPLS service while the flag is set, the system scans the existing IES services for an IP interface that is bound to the specified service name. If an IP interface is found, the IP interface is attached to the VPLS service associated with the name. Only one interface can be bound to the specified name.
If the allow-ip-int-binding command is not enabled on the VPLS service, the system does not attempt to resolve the VPLS service name to an IP interface. As soon as the allow-ip-int-binding flag is configured on the VPLS, the corresponding IP interface is adhered and become operational up. There is no need to toggle the shutdown or no shutdown command.
If an IP interface is not currently bound to the service name used by the VPLS service, no action is taken at the time of the service name assignment.