Method of MPLS-based Fast Recovery
Current MPLS-based recovery schemes have different performance problems:In Makam scheme backup path is established beforehand,so a great deal of resources are wasted;In Simple-dynamic scheme backup path is established dynamically so that the utilization ratio of resources is high.But it must wait for routing table's resume,so recovery time is long and loses a lot of packets.A method of MPLSBased Fast Recovery(MBFR) is presented.In MBFR backup path is established after failure happens.But it doesn't waiting for routing table's resume.It works out backup path based on Source Tree of PIL and current failure information,so it doesn't waste resources and shortens recovery time.The Simulation result validates the superiority of MBFR.