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- Editor's Note: Minutes received 11/25/92
-
- CURRENT_MEETING_REPORT_
-
-
- Reported by Paul Tsuchiya/Bellcore
-
- Minutes of the Inter-Domain Multicast Routing BOF (IDMR)
-
- Agenda
-
-
- 1. Determine the Charter of the Group.
- 2. Go over the CBT (Core Based Trees), a proposal for scalable
- multicast routing.
-
-
- The first IDMR Bof was held November 17th at the Washington, DC IETF
- meeting. It was chaired by Tony Ballardie of UCL. Tony amply
- demonstrated early on in the meeting that the English had best stick to
- dry humor, and leave the wacky stuff to the Americans (MP
- notwithstanding). Paul Tsuchiya was scribe, and these Minutes were
- written by him.
-
- Concerning Agenda item 1, it was agreed that there is a need for a new
- multicast protocol for inter-domain multicast, as the existing schemes
- do not scale well enough. Therefore, it was decided that:
-
-
- 1. A Working Group should be formed (the IDMR Working Group), and
- 2. The charter of the Group is to design a standard multicast routing
- protocol for inter-domain multicast routing.
-
-
- Though there was no explicit call for consensus, it was assumed that
- Tony Ballardie would Chair the Group, with Paul Tsuchiya as alternate
- Chair. I assume that it is still possible for people to volunteer to
- Chair the Group. Also, there was no consensus (for or against) that CBT
- should serve as the base text for the new IDMR protocol. On the other
- hand, no other proposals are on the table.
-
- Concerning Agenda item 2, the following concerns were raised about CBT.
-
-
- o There was a concern that the current Internet-Draft didn't
- adequately specify the case where a node receives two joint
- requests before getting back the first ack.
-
- o The choice of which major core to send terminate request messages
- to is not specified correctly.
-
- o It was felt that there must be a way for detecting the case where
- there are two cores with uptree links on the same LAN.
-
- o The format for the core list packet must be worked out, and the
-
- 1
-
-
-
-
-
- drawing in the CBT document is hard to understand.
-
- o There was a concern that the text describing when to send a quit
- request was not complete.
-
- o The notion of sending a quit some time after receiving a join ack
- (when changing parents) is no good (should send quit immediately).
-
- o There was a lot of discussion about what to do when the link to the
- parent goes down. This whole issue needs to be worked out, but
- there seemed to be a general preference for flushing the whole tree
- below the break, with everything below subsequently rejoining.
-
-
- Attendees
-
- Anthony Ballardie A.Ballardie@cs.ucl.ac.uk
- Tony Bates t.bates@nosc.ja.net
- Scott Brim Scott_Brim@cornell.edu
- Michael Collins collinsms@es.net
- Barbara Denny denny@erg.sri.com
- Hans Eriksson hans@sics.se
- Roger Fajman raf@cu.nih.gov
- Dino Farinacci dino@cisco.com
- Shoji Fukutomi fuku@furukawa.co.jp
- Joel Halpern jmh@network.com
- Don Hoffman don.hoffman@eng.sun.com
- Dwight Jamieson djamies@bnr.ca
- Oliver Jones oj@pictel.com
- Paulina Knibbe knibbe@cisco.com
- Jim Knowles jknowles@binky.arc.nasa.gov
- John Krawczyk jkrawczy@wellfleet.com
- Padma Krishnaswamy kri@sabre.bellcore.com
- Greg Minshall minshall@wc.novell.com
- John Moy jmoy@proteon.com
- Jim Perchik perchik@athena.mit.edu
- Thomas Pusateri pusateri@cs.duke.edu
- Benny Rodrig 4373580@mcimail.com
- Henning Schulzrinne hgs@research.att.com
- Martha Steenstrup msteenst@bbn.com
- Tang Tang tt@virginia.edu
- Paul Tsuchiya tsuchiya@thumper.bellcore.com
- Ioannis Viniotis candice@ececho.ncsu.edu
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-
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