%% You should probably cite rfc8149 instead of this I-D. @techreport{ietf-teas-p2mp-loose-path-reopt-00, number = {draft-ietf-teas-p2mp-loose-path-reopt-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-teas-p2mp-loose-path-reopt/00/}, author = {Tarek Saad and Rakesh Gandhi and Zafar Ali and Robert H. Venator and Yuji Kamite}, title = {{Extensions to Resource Reservation Protocol For Re-optimization of Loosely Routed Point-to-Multipoint Traffic Engineering LSPs}}, pagetotal = 15, year = 2014, month = dec, day = 9, abstract = {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 Source-to-Leaf (S2L) sub-LSP(s). Existing mechanisms, a mechanism for an ingress Label Switched Router (LSR) to trigger a new path re- evaluation request and a mechanism for a mid-point LSR to notify an availability of a preferred path, operate on an individual or a sub- group of S2L sub-LSP(s) basis only. This document defines RSVP-TE signaling extensions to allow an ingress node of a P2MP-TE LSP to request 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 notify to the ingress node that a preferable tree exists for the entire P2MP-TE LSP. This document also defines markers to indicate beginning and end of a S2L sub-LSP descriptor list when RSVP message needs to be fragmented due to large number of S2L sub-LSPs when performing re-optimization.}, }