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mospf-minutes-90may.txt
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1993-02-17
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CURRENT_MEETING_REPORT_
Reported by Steve Deering/ Stanford
Minutes:
This was the second meeting of the Multicast OSPF Working Group.
Steve Deering gave a short presentation on the cost and scaling aspects
of IGMP (the Internet Group Management Protocol, specified in RFC-1112)
and of link-state multicast routing as planned for OSPF. [See the
accompanying slides.]
John Moy presented an outline of the changes and additions required to
the current OSPF specification, to support multicast routing.
Discussion of his outline identified some new concerns and suggestions
regarding:
o support for multicast routing by only a subset of routers in an
area and its effect on multicast vs. unicast reachability,
selection of designated routers, etc.
o duplicate multicast packets arising from the support of multiple IP
subnets on a single physical network.
o inter-area and inter-AS multicast routing approaches.
It was also pointed out that we will have to come up with formal MIB
definitions covering the additional state and configuration variables
introduced for multicast routing. No one immediately volunteered for
that job.
Action Items
John Moy to generate a draft of the multicast changes/additions to the
OSPF specification.
Next Meeting
The Multicast OSPF Working Group will next meet in Vancouver, at the
July/August IETF meeting.
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ATTENDEES
Steven Bruniges
Duane Butler dmb@network.com
George Clapp meritec!clapp@bellcore.bellcore.com
Rob Coltun rcoltun@umds.umd.edu
Steve Deering deering@pescadero.stanford.edu
Martin Gross gross@polaris.dca.mil
Keith Hogan keith%penril@uunet.uu.net
Jeff Honig jch@tcgould.tn.cornell.edu
Joseph C Lawrence jcl@sabre.bellcore.com
Yoni Malachi yoni@cs.stanford.edu
Tony Mason mason@transarc.com
Jeff Mogul mogul@decwrl.dec.com
John Moy jmoy@proteon.com
Stephanie Price cmcvax!price@hub.ucsb.edu
Jim Showalter gamma@mintaka.dca.mil
Michael St. Johns stjohns@umd5.umd.edu
Brad Strand bstrand@cray.com
Kannan Varadhan kannan@oar.net
Steven Willis swillis@wellfleet.com
Chin Yuan cyuan@srv.pacbell.com
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