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-
- CURRENT_MEETING_REPORT_
-
-
- This was an organizational meeting for the ODV group. The first meeting
- was a large one. (The attendance list is given at the end of this
- message.) It discussed primarily general issues. There was a brief
- meeting of a smaller group of people in the evening, to explore doing
- some actual implementation work.
-
- The first meeting discussed primarily the question of whether there
- should be an ODV protocol at all. In addition, issues raised by the
- cisco patent application were discussed. A major part of the meeting
- was taken for a presentation by Jose Garcia-Luna of some research of
- his.
-
- Many people would like there to be only one routing protocol. This has
- obvious advantages in terms of interoperability. Since OSPF is now at
- the RFC stage, it has a head start in terms of IETF politics. The
- question is whether it makes sense to work on another protocol. Raising
- this issue is about as far as one can go. The IETF charter does not
- make it possible to prevent a group of people from working on a
- protocol. So we didn't vote on the question of whether work should
- proceed. But I will note here that many people were very sceptical.
-
- Part of the problem is that it is difficult to prove in any unambiguous
- way what protocol is the best way in the long run. Jose Garcia-Luna's
- simulations attempted to compare SPF and distance vector approaches, but
- the routing algorithms simulated were not based on the best
- implementations of either approach. As part of the work of this group,
- we are going to try to get the resources to carry this work further.
- (This may actually be a more important activity than designing another
- protocol.) My feeling is that routing is still an unsolved problem. It
- is unrealistic to expect progress in this area to stop, leaving some
- current protocol as "the answer" for all time.
-
- In response to the concern about extra protocols, I believe we are going
- to proceed as follows:
-
- o Some subset of us will attempt to bring a description of IGRP to
- the stage of an RFC. The whole issue of whether it should be
- considered an alternative to OSPF is one for those who care about
- such issues to negotiate with the IAB. I do not plan to involve
- myself in that. My feeling is that enough people in the community
- are using IGRP that it at least makes sense to have a generally
- available document that describes it. If network politics make it
- impossible to issue it as an RFC, it will be available as a Rutgers
- University technical report.
- o We will pursue Jose's work. This is more of an attempt to advance
- the state of the art than to produce an immediate competitor to
- OSPF. I believe it will be one to two years before anything
- concrete comes out of this. This work will include analysis as
- well as protocol design. We will try to avoid producing a protocol
- unless it worth doing.
-
- There was a discussion about the implications of the IGRP patent
- application. There was a very strong feeling against an IETF-sponsored
- protocol that is tied up in patent rights. Some caveats:
-
- o There is precedent for a protocol that involves a patent. The
- privacy taskforce is advocating an approach to Email that requires
- a license from RSA, Inc.
- o The concern was primarily that it should be possible to distribute
- public-domain implementation through mechanisms such as the BSD
- tape, for use by recipients. This does not necessarily rule out
- all licensing. This request would be consistent with allowing
- internal use by recipients of the BSD tape, but licensing any
- products based on it.
-
- We took a straw poll about licensing. 27 people objected to a protocol
- that involved a license. 3 saw no problem with it. 12 abstained.
- However it is not entirely clear what this vote meant. My best guess,
- based on a small number of conversations with individuals, is that the
- 27 people might be satisfied with a public-domain implementation that
- allowed free use, but required a license for incorporation into a
- product. At any rate, I believe that the committee will do everything
- possible to make any new protocol it designs unencumbered. This means
- that it will not be based directly upon IGRP. To the extent that it
- shares the same roots as IGRP, there may still be similarities. However
- we will try to make sure that we have sources in the literature
- predating IGRP for any mechanisms that we share with IGRP. Obviously the
- attempt to produce an RFC for IGRP will not adhere to these guidelines.
-
- Jose Garcia-Luna's presentation was based on a published paper, so I
- don't intend to describe it here. (I have managed to lose my copy of
- the paper. Hopefully Jose will send a citation to the list.)
-
-
- ATTENDEES
-
- Almquist, Philip Hinden, Bob
- Arnold, Susan Honig, Jeffrey C.
- Bagnall, Doug Huston, Geoff
- Baker, Fred Karels, Mike
- Berggreen, Art Knowles, Steve
- Borman, David Lear, Eliot
- Burgan, Jeffrey Little, Mike
- Catlett, Charlie Long, Dan
- Chiappa, Noel Merritt, Don
- Chinoy, Bilal Miller, David
- Choy, Joseph H. Opalka, Zbigniew
- Collins, Mike Pleasant, Mel
- Coltun, Rob Rosenstein, Mark
- Elz, Robert Rutenberg, Vald
- Farinacci, Dino Schiller, Jeff
- Fidler, Mike Sheridan, Jim
- Forster, Jim Vaudreuil, Greg
- Fuller, Vince Veach, Ross
- Garcia-Luna, Jose Willis, Steven
- Gross, Phill Yasaki, Brian
- Hays, Ken Youssef, Mary
- Hedrick, Charles
-
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