Multicast Extensions to OSPF (mospf)
------------------------------------

 Charter
 Last Modified: 05/21/2001

 Current Status: Concluded Working Group

 Chair(s):
     John Moy  <john.moy@sycamorenet.com>

 Routing Area Director(s):
     Bill Fenner  <fenner@research.att.com>
     Alex Zinin  <zinin@psg.com>

 Routing Area Advisor:
        <0>

 Mailing Lists: 
     General Discussion:mospf@gated.cornell.edu
     To Subscribe:      mospf-request@gated.cornell.edu
     Archive:           

Description of Working Group:

This working group will extend the OSPF routing protocol so that it
will be able to efficiently route IP multicast packets. This will
produce a new (multicast) version of the OSPF protocol, which will be
as compatible as possible with the present version (packet formats and
most of the algorithms will hopefully remain unaltered).

 Goals and Milestones:

   Done         Review outline of proposed changes to OSPF. Identify any 
                unresolved issues and, if possible, resolve them. 

   Done         Become familiar with the IGMP protocol as documented in RFC 
                1112. Survey existing work on multicast routing, in 
                particular, Steve Deering's paper ``Multicast Routing in 
                Internetworks and Extended LANs''. Identify areas where 
                OSPF must be extended to support multicast routing. 
                Identify possible points of contention. 

   Done         The group should have a draft specification. Discuss the 
                specification and make any necessary changes. Discuss 
                implementation methods, using as an example, the existing 
                BSD OSPF code, written by Rob Coltun of the University of 
                Maryland. 

   Done         Report on implementations of the new multicast OSPF. Fix 
                any problems in the specification that were found by the 
                implementations. 

   Done         Submit the MOSPF Specification to the IESG as a Proposed 
                Standard. 

   JUN 96       Update MOSPF to reflect current usage, document 
                interoperability between implementations, and submit to the 
                IESG for consideration as a Draft Standard. 

   DEC 96       Submit MOSPF to IESG for consideration as a Standard. 

   DEC 96       Document interoperability between MOSPF and DVMRP, and 
                submit as an Informational RFC. 


 Internet-Drafts:

  No Current Internet-Drafts.

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
RFC1469 PS   JUN 93    IP Multicast over Token-Ring Local Area Networks 

RFC1584 PS   MAR 94    Multicast Extensions to OSPF 

RFC1585 I    MAR 94    MOSPF: Analysis and Experience