Internet Info 1997 December/Internet_Info_CD-ROM_Walnut_Creek_December_1997.iso/ietf/92jul/ipaddr-minutes-92jul.txt

Text File | 1993-02-17 | 8.4 KB | 227 lines

Editor's Note: Minutes received 7/31


CURRENT_MEETING_REPORT_


Reported by Bernhard Stockman/SUNET and Steven Winnett/BBN

Minutes of the IP Addressing Plan BOF (IPADDR)

Introduction

The BOF was Chaired by Bernhard Stockman of SUNET. The subject of the
meeting was the Supernetting or CIDR (Classless Inter-Domain Routing)
scheme to extend IP addressing for a few years as presented by V.
Fuller, T. Li, J. Yu, and K. Varadhan in RFC 1338, ``Supernetting:  an
Address Assignment and Aggregation Strategy''.

The Chair expressed the hope that the BOF session would come to a
consensus agreement as to how this problem could be solved.

An attendance list was circulated.

Presentation

Tony Li (cisco) gave a presentation of the CIDR scheme as outlined in
RFC 1337.  The presentation discussed the mechanics of how the
hierarchical addressing scheme would work (allowing groups of
neighboring class C networks to be described as aggregates) along with
examples.  Blocks would initially be allocated at the continental level,
with service providers (a.k.a.  regionals) in turn allocating groups of
networks (where applicable) to clients.

Tony Li stressed that the scheme as presented in RFC 1337 was designed
as a solution for from 3 to 7 years only to the IP addressing problem in
order to buy some time to come up with an acceptable longer-term
solution.

The handling of unused addressed space, of multihomed sites, and of
service provider changes under CIDR was presented.

As an initial allocation, North America and its service providers would
be allocated the Class C networks under <220.0.0.0 252.0.0.0>, Europe
and its service providers would be allocated the Class C networks under
<216.0.0.0 252.0.0.0>, and the remaining continents would be allocated
about 10,00 Class C networks each.

Discussions

There was some discussion of the block sizes to be allocated (i.e.,
would these be in 252 x 255 chunks (mask 252.0.0.0) or 255 x 255 chunks
(mask 255.0.0.0).

The issue of renumbering hosts was discussed.  R. Callon pointed out the
desirability of this, stating that if addresses were reassigned so that

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routing could be done on the flat space of all regionals, then CIDR
would scale to the point of every IP address assigned.  Many others in
the room, however, questioned whether it was realistic to expect that
such a renumbering could ever be agreed to by the Internet community.

There was some discussion of the problems which could be caused by
clients giving back gaps of unallocated network numbers.

Vint Cerf stated that it would be useful to gather data with respect to
the number of networks already assigned, and the number of existing
service providers, on a per country basis.  This might provide useful
background information so that scaling choices could be made in a more
informed manner.

Decisions

Consensus appeared to be reached on the general merits of the
hierarchical addressing plan as presented as a short-term solution to
the IP addressing problem.

There was no consensus over the issue of renumbering existing hosts and
this was tabled for the next BOF.

With respect to the block size issue, the Chair stated that there
appeared to be a consensus around 255 x 255 chunks.

Attendees

Steve Alexander          [e-mail]
Nagaraj Arunkumar        [e-mail]
Ashar Aziz               [e-mail]
William Babson           [e-mail]
John Ballard             [e-mail]
William Barns            [e-mail]
Tony Bates               [e-mail]
Jordan Becker            [e-mail]
James Beers              [e-mail]
Lou Berger               [e-mail]
David Bolen              [e-mail]
Scott Brim               [e-mail]
Steve Buchko             [e-mail]
Jeffrey Burgan           [e-mail]
Ross Callon              [e-mail]
Greg Celmainis           [e-mail]
Vinton Cerf              [e-mail]
John Chang               [e-mail]
Robert Ching             natadm![e-mail]
Chris Chiotasso          [e-mail]
Henry Clark              [e-mail]
James Cobban             [e-mail]
Richard Colella          [e-mail]
Robert Collet            [e-mail]


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Rob Coltun               [e-mail]
Jim Comen                [e-mail]
Michael Conn             [e-mail]
John Curran              [e-mail]
Richard desJardins       [e-mail]
Peter DiCamillo          [e-mail]
Chas DiFatta             [e-mail]
Pierre Dupont            [e-mail]
Tom Easterday            [e-mail]
Roger Fajman             [e-mail]
Stefan Fassbender        [e-mail]
Dennis Ferguson          [e-mail]
Peter Ford               [e-mail]
Karen Frisa              [e-mail]
Cliff Frost              [e-mail]
Vince Fuller             [e-mail]
Kelly Furlong            [e-mail]
Der-Hwa Gan              [e-mail]
Elise Gerich             [e-mail]
Rob Graham               [e-mail]
Phillip Gross            [e-mail]
Simon Hackett            [e-mail]
Steve Hardcastle-Kille   [e-mail]
Kathleen Huber           [e-mail]
Matthew Jonson           [e-mail]
Kevin Jordan             [e-mail]
Dan Jordt                [e-mail]
Scott Kaplan             [e-mail]
Kenneth Key              [e-mail]
Paulina Knibbe           [e-mail]
Mark Knopper             [e-mail]
John Krawczyk            [e-mail]
David Kumpf              [e-mail]
John Labbe               [e-mail]
Sylvain Langlois         [e-mail]
Sharon Lewis             [e-mail]
Fong-Ching Liaw          [e-mail]
Hock-Koon Lim            [e-mail]
Arthur Lin               [e-mail]
Tony Li                  [e-mail]
Joshua Littlefield       [e-mail]
Andrew Maffei            [e-mail]
Carl Malamud             [e-mail]
Bill Manning             [e-mail]
Ed Menze                 [e-mail]
Pushpendra Mohta         [e-mail]
Paul Moran               [e-mail]
Dennis Morris            [e-mail]
Donald Morris            [e-mail]
Mark Needleman           [e-mail]
Erik Nordmark            [e-mail]
Kraig Owen               [e-mail]
Marsha Perrott           [e-mail]
Jon Postel               [e-mail]

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Stephanie Price [e-mail]
Mark Prior               [e-mail]
Bala Rajagopalan         [e-mail]
David Reiser             [e-mail]
Sheri Repucci            [e-mail]
Simon Rosenthal          [e-mail]
Anthony Rutkowski        [e-mail]
Henry Sanders            [e-mail]
Hellen Sears             [e-mail]
Tim Seaver               [e-mail]
Karen Seo                [e-mail]
Erik Sherk               [e-mail]
John Shriver             [e-mail]
William Simpson          [e-mail]
Henry Sinnreich          [e-mail]
Frank Solensky           [e-mail]
Michael St.  Johns       [e-mail]
Martha Steenstrup        [e-mail]
Bernhard Stockman        [e-mail]
Fumio Teraoka            [e-mail]
Marten Terpstra          [e-mail]
Linda Tom                [e-mail]
Claudio Topolcic         [e-mail]
Panos-Gavriil Tsigaridas [e-mail]
Kannan Varadhan          [e-mail]
Ross Veach               [e-mail]
Curtis Villamizar        [e-mail]
Bernhard Volz            [e-mail]
John Wagner              [e-mail]
Justin Walker            [e-mail]
Carol Ward               [e-mail]
William Warner           [e-mail]
Liming Wei               [e-mail]
Evan Wetstone            [e-mail]
Chris Wheeler            [e-mail]
Walter Wimer             [e-mail]
Steven Winnett           [e-mail]
Richard Woundy           [e-mail]
Joseph Zur               [e-mail]



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