[pim] Re: draft-ietf-pim-pfm-forwarding-enhancements-04.txt and BIDIR-PIM?
"Ananya Gopal (ananygop)" <ananygop@cisco.com> Tue, 05 May 2026 23:26 UTC
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From: "Ananya Gopal (ananygop)" <ananygop@cisco.com>
To: "Stevens, Jim " <James.A.Stevens=40collins.com@dmarc.ietf.org>, "pim@ietf.org" <pim@ietf.org>
Thread-Topic: draft-ietf-pim-pfm-forwarding-enhancements-04.txt and BIDIR-PIM?
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Date: Tue, 05 May 2026 23:25:27 +0000
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Subject: [pim] Re: draft-ietf-pim-pfm-forwarding-enhancements-04.txt and BIDIR-PIM?
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Hi Jim, As this draft is about source announcements and information about sources, it does not apply to BIDIR. Thanks, Ananya From: Stevens, Jim <James.A.Stevens=40collins.com@dmarc.ietf.org> Date: Tuesday, May 5, 2026 at 8:02 AM To: pim@ietf.org <pim@ietf.org> Subject: [pim] draft-ietf-pim-pfm-forwarding-enhancements-04.txt and BIDIR-PIM? With respect to: 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://urldefense.us/v2/url?u=https-3A__datatracker.ietf.org_doc_draft-2Dietf-2Dpim-2Dpfm-2Dforwarding-2Denhancements_&d=DwIGaQ&c=MASr1KIcYm9UGIT-jfIzwQg1YBeAkaJoBtxV_4o83uQ&r=iyrI8diTo-IzLTJTCiTPKlD-K8LuYDK9V9WSAQ1TDHwuV2lh7gz-ih2nd1etPTFY&m=rDlOyJVBxtHlDnQ_8nXVWD0bsNHj_UliDG_152snSyt43Kr4DVkBhSQ_VDFHw0w0&s=i3gaMDLm5OBU8EowS9O8Cx-Hj-pp7Ia37ZyyffI_yng&e= Does, this RFC apply to bidirectional-pim (BIDIR-PIM)? If no, then I recommend that this RFC state that it does not apply to BIRDIR-PIM If yes, then I recommend that this RFC state how it applies to BIRDIR-PIM Jim Stevens
- [pim] draft-ietf-pim-pfm-forwarding-enhancements-… Stevens, Jim
- [pim] Re: draft-ietf-pim-pfm-forwarding-enhanceme… Ananya Gopal (ananygop)