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RFC 9780 - Bidirectional Forwarding Detection (BFD) for Multipoint Networks over Point-to-Multipoint MPLS Label Switched Paths (LSPs)

  • Status: Proposed Standard
  • Published: May 2025
  • Stream: IETF
  • Pages: 12
  • Updates: RFC 8562
  • Errata: No Errata

Abstract​

This document describes how to use Bidirectional Forwarding Detection (BFD) for multipoint networks to detect data-plane failures in point-to-multipoint MPLS Label Switched Paths (LSPs) and Segment Routing point-to-multipoint policies with an SR-MPLS data plane. It updates RFC 8562 by recommending an address from the Dummy IPv6 Prefix 100:0:0:1::/64 and discouraging IPv4 loopback addresses mapped to IPv6.

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