Inter-Area P2MP Segmented LSPs

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Document Type Active Internet-Draft (mpls WG)
Last updated 2014-06-06
Replaces draft-raggarwa-mpls-seamless-mcast
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Network Working Group                                         Y. Rekhter
Internet Draft                                          Juniper Networks
Intended status: Standards Track
Expiration Date: December 2014
                                                             R. Aggarwal

                                                                T. Morin
                                                          France Telecom

                                                           I. Grosclaude
                                                          France Telecom

                                                              N. Leymann
                                                     Deutsche Telekom AG

                                                                 S. Saad

                                                             June 6 2014

                     Inter-Area P2MP Segmented LSPs



   This document describes procedures for building inter-area point-to-
   multipoint (P2MP) segmented service LSPs by partitioning such LSPs
   into intra-area segments and using BGP as the inter-area routing and
   label distribution protocol. Within each IGP area the intra-area
   segments are either carried over intra-area P2MP LSPs, using P2MP LSP
   hierarchy, or instantiated using ingress replication.  The intra-area
   P2MP LSPs may be signaled using P2MP RSVP-TE or P2MP mLDP. If ingress
   replication is used within an IGP area, then (multipoint-to-point)
   LDP LSPs or (point-to-point) RSVP-TE LSPs may be used in the IGP
   area. The applications/services that use such inter-area service LSPs
   may be BGP Multicast VPN, VPLS multicast, or global table multicast
   over MPLS.

Rekhter                                                         [Page 1]

Internet Draft    draft-ietf-mpls-seamless-mcast-12.txt        June 2014

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Rekhter                                                         [Page 2]

Internet Draft    draft-ietf-mpls-seamless-mcast-12.txt        June 2014

Table of Contents

 1          Introduction  ..........................................   4
 2          Specification of requirements  .........................   5
 3          General Assumptions and Terminology  ...................   5
 4          Inter-area P2MP Segmented Next-Hop Extended Community  .   7
 5          Discovering P2MP FEC of Inter-Area P2MP Service LSP  ...   8
 5.1        BGP MVPN  ..............................................   8
 5.1.1      Routes originated by PE or ASBR  .......................   8
 5.1.2      Routes re-avertise by PE or ASBR  ......................   9
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