Extensions to Resource Reservation Protocol For Fast Reroute of Traffic Engineering GMPLS LSPs
2014
This document defines Resource Reservation Protocol - Traffic
Engineering (RSVP-TE) signaling extensions to support Fast Reroute
(FRR) of Packet Switched Capable (PSC) Generalized Multi-Protocol
Label Switching (GMPLS) Label Switched Paths (LSPs). These signaling
extensions allow the coordination of a bidirectional bypass tunnel
assignment protecting a common facility in both forward and reverse
directions of a co-routed bidirectional LSP. In addition, these
extensions enable the re-direction of bidirectional traffic and
signaling onto bypass tunnels that ensure co-routedness of data and
signaling paths in the forward and reverse directions after FRR to
avoid RSVP soft-state timeout.
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