Reoptimization of Point-to-Multipoint Traffic Engineering Loosely Routed LSPs

Document Type Replaced Internet-Draft (candidate for mpls WG)
Authors Tarek Saad  , Rakesh Gandhi  , Zafar Ali  , Robert Venator  , Yuji Kamite 
Last updated 2014-07-21
Replaced by draft-ietf-mpls-p2mp-loose-path-reopt
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Call For Adoption By WG Issued
Document shepherd Loa Andersson
IESG IESG state Replaced by draft-ietf-mpls-p2mp-loose-path-reopt
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


For a Traffic Engineered (TE) point-to-multipoint (P2MP) Label Switched Path (LSP), it is preferable in some cases to re-evaluate and re-optimize the entire P2MP-TE LSP by re-signaling all its S2L sub-LSP(s). Existing mechanisms allow the path re-evaluation and the signaling of a the notification of preferred path exists for a single S2L sub-LSP only. This document defines RSVP-TE signaling extensions to allow an ingress Label Switching Router (LSR) of a P2MP-TE LSP to trigger the re-evaluation of the entire LSP tree containing one or more S2L sub- LSPs whose paths are loose (or abstract) hop expanded, and for a mid- point LSR to signal to the ingress LSR that a better tree exists for the entire P2MP-TE LSP.


Tarek Saad (
Rakesh Gandhi (
Zafar Ali (
Robert Venator (
Yuji Kamite (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)