{
  "draft": "draft-ietf-mpls-mldp-multi-topology-09",
  "doc_id": "RFC9658",
  "title": "Multipoint LDP Extensions for Multi-Topology Routing",
  "authors": [
    "IJ. Wijnands",
    "M. Mishra, Ed.",
    "K. Raza",
    "Z. Zhang",
    "A. Gulko"
  ],
  "format": [
    "XML",
    "TEXT",
    "HTML",
    "PDF"
  ],
  "page_count": "14",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Multiprotocol Label Switching",
  "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.",
  "pub_date": "October 2024",
  "keywords": [
    "MPLS",
    "mLDP",
    "Multi-topology"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [
    "RFC7307"
  ],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC9658",
  "errata_url": null
}