The IESG has approved the following document: - 'mLDP Node Protection' (draft-ietf-mpls-mldp-node-protection-08.txt) as Proposed Standard This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-mpls-mldp-node-protection/ Technical Summary This document describes procedures to support node protection for P2P and MP2MP LSPs built by mLDP. In order to protect a node N, the Point of Local Repair (PLR) of N must learn the Merge Point (MPT) LSR(s) of node N to be able to redirected traffic if node N fails. Redirecting the traffic around the failed node N depends on existing P2P LSPs from the PLRto the MPTs bypassing node N. The procedures to setup these P2P LSPs are outside the scope of this document, but one could use RSVP-TE or LDP LFA based techniques to accomplish this. The solution described in this document signals the MPT LSR(s) to the PLR LSR(s) via a Targeted LDP (tLDP) session [RFC5036]. By having a tLDP session with the PLR, most of the mLDP features currently defined should just work, like Make-Before-Break (MBB), Graceful Restart (GR), Typed Wildcard FEC support, etc. All this is achieved at the expense of having an additional tLDP session between an MPT and PLR. Working Group Summary Nothing worth noting. Document Quality Currently no known implementations. Personnel Who is the Document Shepherd for this document? Loa Andersson Who is the Responsible Area Director? Deborah Brungard
