Inter-Area P2MP Segmented LSPs
draft-ietf-mpls-seamless-mcast-17

 
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Type Active Internet-Draft (mpls WG)
Last updated 2015-03-23 (latest revision 2015-02-20)
Replaces draft-raggarwa-mpls-seamless-mcast
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Network Working Group                                         Y. Rekhter
Internet Draft                                                  E. Rosen
Intended status: Standards Track                        Juniper Networks
Expiration Date: August 2015                                 R. Aggarwal
                                                                  Arktan
                                                                T. Morin
                                                           I. Grosclaude
                                                          France Telecom
                                                              N. Leymann
                                                     Deutsche Telekom AG
                                                                 S. Saad
                                                                    AT&T

                                                           February 2015

                     Inter-Area P2MP Segmented LSPs

                 draft-ietf-mpls-seamless-mcast-17.txt

Abstract

   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.

Status of this Memo

   This Internet-Draft is submitted to IETF in full conformance with the
   provisions of BCP 78 and BCP 79.

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Rekhter                                                         [Page 1]



Internet Draft    draft-ietf-mpls-seamless-mcast-17.txt    February 2015

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Rekhter                                                         [Page 2]



Internet Draft    draft-ietf-mpls-seamless-mcast-17.txt    February 2015

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  ...   7
 5.1        BGP MVPN  ..............................................   8
 5.1.1      Routes originated by PE or ASBR  .......................   8
 5.1.2      Routes Re-Advertised by PE or ASBR  ....................   8
 5.1.3      Inter-area routes  .....................................   9
 5.2        LDP VPLS with BGP auto-discovery or BGP VPLS  ..........  10
 5.2.1      Routes originated by PE or ASBR  .......................  10
 5.2.2      Routes Re-Advertised by PE or ASBR  ....................  10
 5.2.3      Inter-area routes  .....................................  11
 5.3        Global Table Multicast over MPLS  ......................  11
 6          Egress PE/ASBR Signaling Procedures  ...................  12
 6.1        Determining the Upstream ABR/PE/ASBR (Upstream Node)  ..  12
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