Bound service name assignment

When a bound service name is assigned to a service within the system, the system first checks to ensure the service type is VPLS. Secondly the system ensures that the service is not already bound to another IP interface through the service name. If the service type is not VPLS or the service is already bound to another IP interface through the service ID, the service name assignment fails.

A single VPLS instance cannot be bound to two separate IP interfaces.