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Status:

PROPOSED STANDARD

Updates:

RFC 7307

Authors:

IJ. Wijnands
M. Mishra, Ed.
K. Raza
Z. Zhang
A. Gulko

Stream:

IETF

Source:

mpls (rtg)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC9658

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Other actions:Submit Errata  | Find IPR Disclosures from the IETF  | View History of RFC 9658

Abstract

Multi-Topology Routing (MTR) is a technology that enables servicedifferentiation within an IP network. The Flexible Algorithm (FA) isanother mechanism for creating a sub-topology within a topology usingdefined topology constraints and computation algorithms. In order todeploy Multipoint LDP (mLDP) in a network that supports MTR, FA, orother methods of signaling non-default IGP Algorithms (IPAs), mLDP isrequired to become topology and algorithm aware. This documentspecifies extensions to mLDP to support the use of MTR/IPAs suchthat, when building multipoint Label Switched Paths (LSPs), the LSPscan follow a particular topology and algorithm. This document updatesRFC 7307 by allocating eight bits from a previously reserved field tobe used as the "IPA" field.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.