Last Call: <draft-ietf-pim-zeroconf-mcast-addr-alloc-ps-07.txt> (Zeroconf Multicast Address Allocation Problem Statement and Requirements) to Informational RFC

The IESG <iesg-secretary@ietf.org> Fri, 03 October 2025 13:37 UTC

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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Last Call: <draft-ietf-pim-zeroconf-mcast-addr-alloc-ps-07.txt> (Zeroconf Multicast Address Allocation Problem Statement and Requirements) to Informational RFC
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Date: Fri, 03 Oct 2025 06:37:59 -0700
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CC: draft-ietf-pim-zeroconf-mcast-addr-alloc-ps@ietf.org, gunter@vandevelde.cc, pim-chairs@ietf.org, pim@ietf.org
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The IESG has received a request from the Protocols for IP Multicast WG (pim)
to consider the following document: - 'Zeroconf Multicast Address Allocation
Problem Statement and
   Requirements'
  <draft-ietf-pim-zeroconf-mcast-addr-alloc-ps-07.txt> as Informational RFC

The IESG plans to make a decision in the next few weeks, and solicits final
comments on this action. Please send substantive comments to the
last-call@ietf.org mailing lists by 2025-10-17. Exceptionally, comments may
be sent to iesg@ietf.org instead. In either case, please retain the beginning
of the Subject line to allow automated sorting.

Abstract


   This document defines the problem space and associated requirements
   for automatically assigning multicast addresses in zero-configuration
   ("zeroconf") networking environments.  It addresses key challenges,
   such as address collisions, hardware limitations, multicast snooping
   inefficiencies, and the need to avoid manual configuration.  Based on
   these challenges, it derives requirements for a lightweight,
   decentralized protocol capable of dynamically allocating unique
   multicast group addresses without central coordination.

   The document presents explicit requirements covering discovery,
   allocation, conflict detection and resolution, and lease management.
   It also evaluates considerations specific to IPv6 and IPv4 multicast
   address ranges, and identifies approaches that are unsuited for
   zeroconf deployment.  This foundation serves as a reference for
   developing future multicast address allocation protocols that operate
   autonomously within local networks.




The file can be obtained via
https://datatracker.ietf.org/doc/draft-ietf-pim-zeroconf-mcast-addr-alloc-ps/



No IPR declarations have been submitted directly on this I-D.

Last Call: <draft-ietf-pim-zeroconf-mcast-addr-al… The IESG