RFC 7715

Multipoint LDP (mLDP) Node Protection, January 2016

Canonical URL:
https://www.rfc-editor.org/rfc/rfc7715.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
IJ. Wijnands, Ed.
K. Raza
A. Atlas
J. Tantsura
Q. Zhao
Stream:
IETF
Source:
mpls (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC7715

Discuss this RFC: Send questions or comments to mpls@ietf.org

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Abstract

This document describes procedures to support node protection for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths (P2MP and MP2MP LSPs) that have been built by the Multipoint Label Distribution Protocol (mLDP). In order to protect a node N, the Point of Local Repair (PLR) Label Switching Router (LSR) of N must learn the Merge Point (MPT) LSR(s) of node N such that traffic can be redirected to them in case node N fails. Redirecting the traffic around the failed node N depends on existing Point-to-Point (P2P) Label Switched Paths (LSPs). The pre-established LSPs originate from the PLR LSR and terminate on the MPT LSRs while bypassing LSR N.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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