Inter-Area P2MP Segmented LSPs
draft-ietf-mpls-seamless-mcast-07
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Network Working Group Y. Rekhter
Internet Draft Juniper Networks
Expiration Date: October 2013
R. Aggarwal
T. Morin
France Telecom
I. Grosclaude
France Telecom
N. Leymann
Deutsche Telekom AG
S. Saad
AT&T
May 14 2013
Inter-Area P2MP Segmented LSPs
draft-ietf-mpls-seamless-mcast-07.txt
Status of this Memo
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Rekhter [Page 1]
Internet Draft draft-ietf-mpls-seamless-mcast-07.txt April 2013
Copyright and License Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
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This document is subject to BCP 78 and the IETF Trust's Legal
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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 MP2P LDP LSPs or P2P
RSVP-TE LSPs may be used in the IGP area. The applications/services
that use such inter-area service LSPs may be BGP MVPN, VPLS
multicast, or global table multicast over MPLS.
Rekhter [Page 2]
Internet Draft draft-ietf-mpls-seamless-mcast-07.txt April 2013
Table of Contents
1 Specification of requirements ......................... 4
2 Introduction .......................................... 4
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
5.2 BGP VPLS or LDP VPLS with BGP auto-discovery .......... 9
5.3 Global Table Multicast over MPLS ...................... 11
6 Egress PE/ASBR Procedures ............................. 11
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