Protocol Independent Multicast (pim)
------------------------------------

 Charter
 Last Modified: 2007-09-05

 Current Status: Active Working Group

 Chair(s):
     Mike McBride  <mmcbride@cisco.com>
     Stig Venaas  <venaas@uninett.no>

 Routing Area Director(s):
     Ross Callon  <rcallon@juniper.net>
     David Ward  <dward@cisco.com>

 Routing Area Advisor:
     David Ward  <dward@cisco.com>

 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   <Filename>
------ ------- --------------------------------------------
Mar 2000 Feb 2007   <draft-ietf-pim-bidir-09.txt>
                Bi-directional Protocol Independent Multicast (BIDIR-PIM) 

Feb 2001 Aug 2007   <draft-ietf-pim-sm-bsr-12.txt>
                Bootstrap Router (BSR) Mechanism for PIM 

Jun 2002 Mar 2007   <draft-ietf-pim-mib-v2-10.txt>
                Protocol Independent Multicast MIB 

Feb 2005 Jul 2007   <draft-ietf-pim-rpf-vector-04.txt>
                The RPF Vector TLV 

Oct 2005 May 2007   <draft-ietf-pim-join-attributes-03.txt>
                Format for using TLVs in PIM messages 

Aug 2006 Jun 2007   <draft-ietf-pim-bsr-mib-03.txt>
                PIM Bootstrap Router MIB 

Oct 2006 Jul 2007   <draft-ietf-pim-sm-linklocal-01.txt>
                Security Issues in PIM-SM Link-local Messages 

Oct 2006 Jun 2007   <draft-ietf-pim-lasthop-threats-01.txt>
                Last-hop Threats to Protocol Independent Multicast (PIM) 

 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