I-D Action: draft-ietf-bier-frr-14.txt

Internet-Draft draft-ietf-bier-frr-14.txt is now available. It is a work item
of the Bit Indexed Explicit Replication (BIER) WG of the IETF.

   Title:   A Framework for Fast Reroute with Bit Index Explicit Replication (BIER-FRR)
   Authors: Huaimo Chen
            Mike McBride
            Steffen Lindner
            Michael Menth
            Toerless Eckert
   Name:    draft-ietf-bier-frr-14.txt
   Pages:   58
   Dates:   2026-07-21

Abstract:

   This document provides a framework for the development of Fast
   Reroute (FRR) mechanisms for Bit Index Explicit Replication
   forwarding (BIER-FRR).  BIER-FRR can provide protection against link
   or BFR failure by invoking locally pre-determined repair paths that
   can react in the same time-scales as (unicast) FRR for MPLS or IP
   networks - "sub 50msec", and without the creation of additional per-
   path or per-flow state coordinated across multiple routers/LSR.

   BIER-FRR can be implemed locally within a router/LSR with minimal
   interoperability requirements against other router/LSR.  It can
   therefore easily be introduced incrementally or selectively where
   needed.  BIER-FRR implementing nodes only need to understand the
   routing topology of the network for calculation of repair paths and
   know what type of unicast encapsulation can be used to send
   ("tunnel") BIER packets to remote BFR.

   This document proposes and discusses different options for BIER
   forwardng (BIFT) extensions to support BIER-FRR.  These are exemplary
   and non-normative.  This document does not specify any standards or
   experiments but aims to support such efforts.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-bier-frr/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-bier-frr-14

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-bier-frr-14

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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