Protocol Independent Multicast (pim) ------------------------------------ Charter Last Modified: 2009-04-02 Current Status: Active Working Group Chair(s): Mike McBride Stig Venaas Routing Area Director(s): Ross Callon David Ward Adrian Farrel Routing Area Advisor: Adrian Farrel Mailing Lists: General Discussion:pim@ietf.org To Subscribe: http://www1.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. The PIM WG will consider implications of VPN service on PIM when it's a component of that service or when PIM interfaces with that service at a VPN edge. If L2VPN or L3VPN WGs determine that support for multicast in L2VPNs and/or L3VPNs requires extensions to PIM, then such extensions could 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 will continue to specify the MIB modules required for PIM and its enhancements. 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 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. Submision 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 Dec 2007 Submit the BSR spec as a Proposed Standard to the IESG Dec 2007 Submit the BSR MIB as a Proposed Standard to the IESG Mar 2008 Submit a more reliable pim solution (refresh reduction) to the IESG Mar 2008 Submit a generic TLV PIM Join Attribute PS draft to the IESG Mar 2008 Submit RPF Vector (use of PIM Join Attribute) as PS to the IESG Mar 2008 Submit a way to authenticate PIM link local messages as PS to the IESG Mar 2008 Submit an Informational PIM last hop threats document to the IESG Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Oct 2006 Feb 2009 Authentication and Confidentiality in PIM-SM Link-local Messages Oct 2008 Oct 2008 PIM Group-to-RP Mapping Jan 2009 Jan 2009 PIM Multi-Topology ID (MT-ID) Join-Attribute 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) RFC5059 PS Jan 2008 Bootstrap Router (BSR) Mechanism for Protocol Independent Multicast (PIM) RFC5060 PS Jan 2008 Protocol Independent Multicast MIB 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