Dear All, the update in this version describes the benefits of using BFD for multipoint networks (RFCs 8562 and 8563) over p2p MPLS LSP. Because RFC 8562 updated the BFD state machine, actors avoid the Init state and do not use the three-way handshake to advance the BFD session to the Up state. Thus, the value of My Discriminator, used by MultipointTail do demultiplex BFD sessions, must be provisioned by other means, e.g., using an extension to an IGP protocol. An unsolicited notification from a MultipointTail that detected failure of the BFD session to the MultipointHead can be used as described in the draft.
Your comments, questions, and suggestions are welcome. I ask for consideration of adopting this document. It describes a new mechanism (complementary to RFC 5884) that can be used to detect failures in MPLS and SR-MPLS networks. Regards, Greg ---------- Forwarded message --------- From: <internet-dra...@ietf.org> Date: Fri, Oct 1, 2021 at 4:44 PM Subject: New Version Notification for draft-mirsky-bfd-mpls-demand-10.txt To: Greg Mirsky <gregimir...@gmail.com> A new version of I-D, draft-mirsky-bfd-mpls-demand-10.txt has been successfully submitted by Greg Mirsky and posted to the IETF repository. Name: draft-mirsky-bfd-mpls-demand Revision: 10 Title: BFD in Demand Mode over Point-to-Point MPLS LSP Document date: 2021-10-01 Group: bfd Pages: 6 URL: https://www.ietf.org/archive/id/draft-mirsky-bfd-mpls-demand-10.txt Status: https://datatracker.ietf.org/doc/draft-mirsky-bfd-mpls-demand/ Html: https://www.ietf.org/archive/id/draft-mirsky-bfd-mpls-demand-10.html Htmlized: https://datatracker.ietf.org/doc/html/draft-mirsky-bfd-mpls-demand Diff: https://www.ietf.org/rfcdiff?url2=draft-mirsky-bfd-mpls-demand-10 Abstract: This document describes procedures for using Bidirectional Forwarding Detection (BFD) in Demand mode to detect data plane failures in Multiprotocol Label Switching (MPLS) point-to-point Label Switched Paths. The IETF Secretariat
