mLDP Extensions for Multi-Topology Routing
draft-wijnands-mpls-mldp-multi-topology-01

Document Type Active Internet-Draft (individual)
Authors IJsbrand Wijnands  , Kamran Raza  , Mankamana Mishra  , Anuj Budhiraja  , Zhaohui Zhang  , Arkadiy Gulko 
Last updated 2020-11-26
Replaces draft-iwijnand-mpls-mldp-multi-topology
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MPLS Working Group                                          IJ. Wijnands
Internet-Draft                                                Individual
Intended status: Standards Track                                 K. Raza
Expires: May 30, 2021                                          M. Mishra
                                                            A. Budhiraja
                                                     Cisco Systems, Inc.
                                                                Z. Zhang
                                                        Juniper Networks
                                                                A. Gulko
                                          Edward Jones wealth management
                                                       November 26, 2020

               mLDP Extensions for Multi-Topology Routing
               draft-wijnands-mpls-mldp-multi-topology-01

Abstract

   Multi-Topology Routing (MTR) is a technology to enable service
   differentiation within an IP network.  Flexible Algorithm (FA) is
   another mechanism of creating a sub-topology within a topology using
   defined topology constraints and computation algorithm.  In order to
   deploy mLDP in a network that supports MTR and/or FA, mLDP is
   required to become topology and FA aware.  This document specifies
   extensions to mLDP to support MTR with FA such that when building a
   Multi-Point LSPs it can follow a particular topology and algorithm.

Status of This Memo

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   This Internet-Draft will expire on May 30, 2021.

Wijnands, et al.          Expires May 30, 2021                  [Page 1]
Internet-Draft             Multi-Topology mLDP             November 2020

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Table of Contents

   1.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Specification of Requirements . . . . . . . . . . . . . . . .   4
   4.  MT Scoped mLDP FECs . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  MP FEC Extensions for MT  . . . . . . . . . . . . . . . .   4
       4.1.1.  MP FEC Element  . . . . . . . . . . . . . . . . . . .   5
       4.1.2.  MT IP Address Families  . . . . . . . . . . . . . . .   5
       4.1.3.  MT MP FEC Element . . . . . . . . . . . . . . . . . .   6
     4.2.  Topology IDs  . . . . . . . . . . . . . . . . . . . . . .   7
   5.  MT Multipoint Capability  . . . . . . . . . . . . . . . . . .   7
   6.  MT Applicability on FEC-based features  . . . . . . . . . . .   8
     6.1.  Typed Wildcard MP FEC Elements  . . . . . . . . . . . . .   8
     6.2.  End-of-LIB  . . . . . . . . . . . . . . . . . . . . . . .   9
   7.  Topology-Scoped Signaling and Forwarding  . . . . . . . . . .  10
     7.1.  Upstream LSR selection  . . . . . . . . . . . . . . . . .  10
     7.2.  Downstream forwarding interface selection . . . . . . . .  10
   8.  LSP Ping Extensions . . . . . . . . . . . . . . . . . . . . .  10
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  12
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     12.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     12.2.  Informative References . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Glossary

      MT - Multi-Topology

      MT-ID - Multi-Topology Identifier

Wijnands, et al.          Expires May 30, 2021                  [Page 2]
Internet-Draft             Multi-Topology mLDP             November 2020
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