Inter-Area Point-to-Multipoint (P2MP) Segmented Label Switched Paths (LSPs)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: RFC Editor <email@example.com>, mpls mailing list <firstname.lastname@example.org>, mpls chair <email@example.com> Subject: Protocol Action: 'Inter-Area P2MP Segmented LSPs' to Proposed Standard (draft-ietf-mpls-seamless-mcast-17.txt) The IESG has approved the following document: - 'Inter-Area P2MP Segmented LSPs' (draft-ietf-mpls-seamless-mcast-17.txt) as Proposed Standard This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Alia Atlas and Adrian Farrel. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-mpls-seamless-mcast/
Technical Summary 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. Working Group Summary The WG process has been straightforward. There is a general agreement in the working group that support for multicast service is needed and that there are synergies if we can use the same method for multiple cases There have been no controversies around this draft and the support for this document is good. Document Quality We are currently aware of one implementation. There has been no other reviews than the MPLS review team, the WGLC, and AD review. No expert reviews are necessary for this document. Personnel Loa Andersson is the Document Shepherd. Adrian Farrel is the Responsible Area Director.