Utilizing Fast Reroute in MPLS for graceful preemption
Publication Date: 2018-Aug-23
The IP.com Prior Art Database
The present disclosure relates to utilizing Fast Reroute (FRR) in Multiprotocol Label Switching (MPLS) for graceful preemption. The disclosure leverages the FRR Local Protection mechanism to switchover a tunnel, to a backup running over a Facility Bypass Tunnel and free up bandwidth. The present disclosure provides a better solution to the preemption problem, by preventing any data discontinuity. Specifically, the present disclosure utilizes the existing and deployed FRR solution as a key construct, and the base solution does not require any modification in the protocol.