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

Charter
Last Modified: 05/21/2001

Current Status: Concluded Working Group

Chair(s):
    John Moy  <[email protected]>

Routing Area Director(s):
    Bill Fenner  <[email protected]>
    Alex Zinin  <[email protected]>

Routing Area Advisor:
       <0>

Mailing Lists:
    General Discussion:[email protected]
    To Subscribe:      [email protected]
    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