Multipoint LDP Extensions for Multi-Topology Routing

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Publisher: IETF
Doc Type: Standard
Pages: 14
Abstract: Multi-Topology Routing (MTR) is a technology that enables service differentiation within an IP network. The Flexible Algorithm (FA) is another mechanism for creating a sub-topology within a topology using defined topology constraints and computation algorithms. In order to deploy Multipoint LDP (mLDP) in a network that supports MTR, FA, or other methods of signaling non-default IGP Algorithms (IPAs), mLDP is required to become topology and algorithm aware. This document specifies extensions to mLDP to support the use of MTR/IPAs such that, when building multipoint Label Switched Paths (LSPs), the LSPs can follow a particular topology and algorithm. This document updates RFC 7307 by allocating eight bits from a previously reserved field to be used as the "IPA" field.
Publication Date: 2024-10-01
Status Note: Proposed Standard
DOI: 10.17487/RFC9658
Link: https://doi.org/10.17487/RFC9658
Author(s): IJsbrand Wijnands
Mankamana Prasad Mishra
Syed Kamran Raza
Zhaohui (Jeffrey) Zhang
Arkadiy Gulko
Keyword(s): MPLS, mLDP, Multi-Topology

Latest version of IETF RFC 9658

Document Versions — IETF RFC 9658

▶ IETF RFC 9658 (2024-10-01)

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Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 4915 [Active*]
IETF RFC 5120 [Active*]
IETF RFC 6388 [Active*]
IETF RFC 6425 [Active*]
IETF RFC 6513 [Active*]
IETF RFC 6514 [Active*]
IETF RFC 7307 [Active*]
IETF RFC 8029 [Active*]
IETF RFC 8174 [Active*]
IETF RFC 9350 [Active*]

Bibliographic Reference(s)

IANA, "IGP Algorithm Types", <https://www.iana.org/assignments/igp-parameters>. EXTERNAL
IETF RFC 5036 [Active*]
IETF RFC 5561 [Active*]
IETF RFC 5918 [Active*]
IETF RFC 5919 [Active*]
IETF RFC 5920 [Active*]

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IETF RFC 7307 [Active*]

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doi: 10.17487/RFC9658
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<cite id="bib-rfc9658">IETF RFC 9658</cite>, Multipoint LDP Extensions for Multi-Topology Routing
<span class="doi">10.17487/RFC9658</span>
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