Inter-Area Point-to-Multipoint Segmented Label Switched Paths
RFC 7524, “Inter-Area Point-to-Multipoint Segmented Label Switched Paths”, is a Proposed Standard document published in May 2015 by Y. Rekhter, E. Rosen, R. Aggarwal, T. Morin, I. Grosclaude, N. Leymann, S. Saad. It has since been updated by RFC 8534. The canonical text is published by the RFC Editor.
Abstract
This document describes procedures for building inter-area point-to-multipoint (P2MP) segmented service label switched paths (LSPs) by partitioning such LSPs into intra-area segments and using BGP as the inter-area routing and Label Distribution Protocol (LDP). 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 multipoint LDP (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, Virtual Private LAN Service (VPLS) multicast, or global table multicast over MPLS.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7524 is hosted at rfc-editor.org. Available in TXT,HTML.
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