[pim] I-D Action: draft-ietf-pim-pfm-forwarding-enhancements -04.txt

Internet-Draft draft-ietf-pim-pfm-forwarding-enhancements-04.txt is now
available. It is a work item of the Protocols for IP Multicast (PIM) WG of the
IETF.

   Title:   PIM Flooding Mechanism and Source Discovery Enhancements
   Authors: Ananya Gopal
            Stig Venaas
            Francesco Meo
   Name:    draft-ietf-pim-pfm-forwarding-enhancements-04.txt
   Pages:   12
   Dates:   2026-05-04

Abstract:

   The Protocol Independent Multicast (PIM) Flooding Mechanism (PFM)
   provides a generic hop-by-hop message exchange framework for
   distributing multicast information among PIM routers.  Existing PFM
   procedures enable efficient source discovery without reliance on
   Rendezvous Points, shared trees, or initial data registers.

   This document specifies enhancements to PFM forwarding behavior to
   improve efficiency and scalability.  In particular, it introduces
   mechanisms to reduce redundant message transmission over multiple
   parallel links and extends the encoding of multicast information
   through additional Type-Length-Value (TLV) structures and sub-TLVs to
   convey richer flow-related data.  These enhancements optimize
   control-plane overhead while preserving interoperability with
   existing PFM procedures, enabling more efficient dissemination of
   multicast state in PIM networks.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-pim-pfm-forwarding-enhancements/

There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-pim-pfm-forwarding-enhancements-04

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-pim-pfm-forwarding-enhancements-04

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


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