If a bound service name is assigned to a service within the system, the system first checks to ensure the service type is VPLS or I-VPLS. Secondly, the system ensures that the service is not already bound to another IP interface through the service ID. If the service type is not VPLS or I-VPLS or the service is already bound to another IP interface through the service ID, the service name assignment fails.
If a single VPLS service ID and service name is assigned to two separate IP interfaces, the VPLS service is not allowed to enter the operationally up state.