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Utilizing Fast Reroute in MPLS for graceful preemption Disclosure Number: IPCOM000255008D
Publication Date: 2018-Aug-23

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The Prior Art Database

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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.