Protocol Independent Multicast (pim) ------------------------------------ Charter Last Modified: 2011-08-18 Current Status: Active Working Group Chair(s): Mike McBride Stig Venaas Routing Area Director(s): Stewart Bryant Adrian Farrel Routing Area Advisor: Adrian Farrel Technical Advisor(s): Brian Haberman Mailing Lists: General Discussion:pim@ietf.org To Subscribe: https://www.ietf.org/mailman/listinfo/pim/ Archive: http://www.ietf.org/mail-archive/web/pim/index.html Description of Working Group: The Protocol Independent Multicast (PIM) Working Group has completed the standardization of PIM with RFC 4601. The WG has determined there is additional work to be accomplished and is chartered to standardize extensions to RFC 4601 - Protocol Independent Multicast Version 2 - Sparse Mode. These PIM extensions will involve reliability, resiliency, scalability, management, and security. If L2VPN or L3VPN WGs determine that support for multicast in L2VPNs and/or L3VPNs requires extensions to PIM, then such extensions will be developed within the PIM WG. Additional work on the PIM-BIDIR and BSR drafts may also be necessary by the WG as these drafts progress through Standards Track. The working group has produced MIB modules for PIM in RFC 5060 and RFC 5240. The working group currently has no plans to do further work on management for PIM. If proposals are brought forward to update or extend the existing MIB modules or to develop YANG modules, the working group will be rechartered. The PIM WG will further enhance RFC4601 as an even more scalable, efficient and robust multicast routing protocol, which is capable of supporting thousands of groups, different types of multicast applications, and all major underlying layer-2 subnetwork technologies. We will accomplish these enhancements by submitting drafts, to the IESG, involving reliable pim, pim join attributes and pim authentication. The working group primarily works on extensions to PIM, but may take on work related to IGMP/MLD. There is a significant number of errata that need to be addressed in order to advance RFC4601 to Draft Standard. The PIM WG will correct the errata, as necessary, and update RFC4601. The working group will initiate a new re-chartering effort if it is determined that a Version 3 of PIM is required. Goals and Milestones: Done Hold the first Working Group meeting and discuss the charter and the state of progress on the chartered items. Done Update the PIM-DM version 2 Internet-draft. Go to WG last call. Submission to IESG for considerations as proposed standard. Done Resubmit the latest PIM-SM version 2 specification to IESG for consideration as a proposed standard RFC Done Submit PIM-SM Applicability Statements Done Submit PIMv2 MIB to IESG for consideration as proposed standard. Done Submit updated PIM-SM and PIM-DM internet-drafts, clarifying any inconsistencies or ambiguities in the previous drafts. Done Submit PIM-SM version 2 and PIM-DM version 2 specifications to IESG for consideration as Draft Standards. Done Submit PIMv2 MIB to IESG for consideration as draft standard. Done Ratify new WG charter and milestones Done Submit the BSR spec as a Proposed Standard to the IESG Done Submit the BSR MIB as a Proposed Standard to the IESG Done Submit a generic TLV PIM Join Attribute PS draft to the IESG Done Submit RPF Vector (use of PIM Join Attribute) as PS to the IESG Done Submit a way to authenticate PIM link local messages as PS to the IESG Done Submit an Informational PIM last hop threats document to the IESG Aug 2011 First WG version of udated RFC 4601 Aug 2011 Submit a more reliable PIM solution (refresh reduction) to the IESG Nov 2011 Submit a population count extension to PIM to the IESG Dec 2011 Submit update of RFC 4601 to IESG for advancement to Draft Standard Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Jul 2008 Jul 2011 Population Count Extensions to PIM Aug 2008 Oct 2011 A Reliable Transport Mechanism for PIM Jan 2009 Sep 2011 PIM Multi-Topology ID (MT-ID) Join Attribute Aug 2011 Aug 2011 Protocol Independent Multicast ECMP Assert Oct 2011 Oct 2011 Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised) Oct 2011 Oct 2011 IGMP/MLD-Based Explicit Membership Tracking Function for Multicast Routers Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC3973 E Jan 2005 Protocol Independent Multicast - Dense Mode (PIM-DM): Protocol Specification (Revised) RFC4610 PS Aug 2006 Anycast-RP Using Protocol Independent Multicast (PIM) RFC4601 PS Aug 2006 Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised) RFC4602 I Aug 2006 Protocol Independent Multicast - Sparse Mode (PIM-SM) IETF Proposed Standard Requirements Analysis RFC5015 PS Oct 2007 Bi-directional Protocol Independent Multicast (BIDIR-PIM) RFC5060 PS Jan 2008 Protocol Independent Multicast MIB RFC5059 PS Jan 2008 Bootstrap Router (BSR) Mechanism for Protocol Independent Multicast (PIM) RFC5240 PS Jun 2008 Protocol Independent Multicast (PIM) Bootstrap Router MIB RFC5294 I Aug 2008 Host Threats to Protocol Independent Multicast (PIM) RFC5384 PS Nov 2008 The Protocol Independent Multicast (PIM) Join Attribute Format RFC5496 PS Mar 2009 The Reverse Path Forwarding (RPF) Vector TLV RFC5796 PS Mar 2010 Authentication and Confidentiality in Protocol Independent Multicast Sparse Mode (PIM-SM) Link-Local Messages RFC6166 PS Apr 2011 A Registry for PIM Message Types RFC6226 PS May 2011 PIM Group-to-Rendezvous-Point Mapping RFC6395 PS Oct 2011 An Interface Identifier (ID) Hello Option for PIM