Backup logical port service is provided by associating permanent virtual circuit (PVC) descriptions of a primary management information base (MIB) for a primary physical circuit with a service name that is also associated with a backup management information base and corresponding backup physical circuit. Switching from primary to backup service results in the PVC builds in the MIB for the primary circuit being established in the MIB for the backup circuit through association with the service name, rather than having an independently built set of PVCs in the backup MIB that may be error prone. Additionally, the backup service may be a full backup of all PVCs built to the primary service or a partial backup. Backup service may be configured and triggered by a terminal in communication with the management server, including client devices of customers accessing the management server through the Internet.