Updates to the Resource Reservation Protocol for Fast Reroute of Traffic Engineering GMPLS Label Switched Paths (LSPs)
draft-ietf-teas-gmpls-lsp-fastreroute-12
Technical Summary
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 onto
bypass tunnels that ensure co-routedness of data paths in the forward
and reverse directions after FRR and avoid RSVP soft-state timeout in
control-plane.
Working Group Summary
This document moved from the CCAMP WG to TEAS WG as part of the
routing WG changes. There was some serious debate regarding the
object-format/procedures defined for co-ordinating bidirectional
bypass tunnel assignment between the downstream and upstream PLRs.
All concerns raised in regard to this have been addressed by the
authors. The document went through three WG Last Calls before
being deemed “publication-request” ready as substantial comments
were raised during the first and second Last Calls.
Document Quality
The base (G)MPLS RSVP protocol has been implemented. The procedures
discussed in this document are compatible with earlier implementations.
While there have been no public statements on implementation, the
authors are from multiple vendors, and implementation is expected.
Personnel
Who is the Document Shepherd for this document? Vishnu Pavan Beeram
Who is the Responsible Area Director? Deborah Brungard