RFC 9026

Multicast VPN Fast Upstream Failover, April 2021

File formats:

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Status:
PROPOSED STANDARD
Authors:
T. Morin, Ed.
R. Kebler, Ed.
G. Mirsky, Ed.
Stream:
IETF
Source:
bess (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC9026

Discuss this RFC: Send questions or comments to bess@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document defines Multicast Virtual Private Network (VPN) extensions and procedures that allow fast failover for upstream failures by allowing downstream Provider Edges (PEs) to consider the status of Provider-Tunnels (P-tunnels) when selecting the Upstream PE for a VPN multicast flow. The fast failover is enabled by using "Bidirectional Forwarding Detection (BFD) for Multipoint Networks" (RFC 8562) and the new BGP Attribute, BFD Discriminator. Also, this document introduces a new BGP Community, Standby PE, extending BGP Multicast VPN (MVPN) routing so that a C-multicast route can be advertised toward a Standby Upstream PE.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.