Internet Info 1997 December/Internet_Info_CD-ROM_Walnut_Creek_December_1997.iso/ietf/iplpdn/iplpdn-minutes-91jul.txt

Text File | 1993-02-17 | 8KB | 217 lines

CURRENT_MEETING_REPORT_


Reported by George Clapp/Ameritech

IPLPDN Minutes

Opening Remarks

This was the third meeting of the IP over Large Public Data Networks
Working Group.  The following was the Agenda of the meeting:



Monday, July 29, 1991
     PM     IP over Frame Relay

Tuesday, July 30, 1991
     AM     IP over Frame Relay
     PM     IP over Frame Relay

Wednesday, July 31, 1991
     AM     Address Resolution and routing
     PM     Address Resolution and routing

Thursday, August 1, 1991
     AM     IP over ISDN



Monday, July 29, Through Tuesday, July 30, 1991

After brief introductory remarks by the Chair, Andy Malis opened with a
presentation giving an overview of the current status of encapsulation
over Frame Relay (copies of the slides are included with these minutes).
The Working Group then turned to a close review of the following three
documents:


   o Multiprotocol Interconnect over Frame Relay Networks
   o Inverse Address Resolution Protocol
   o Management Information Base for Frame Relay DTEs


(The revised documents are available as Internet Drafts entitled
``draft-ietf-iplpdn-ipoverframerelay-03.txt,''
``draft-ietf-iplpdn-inarp-02.txt'', and
``draft-ietf-iplpdn-frmib-01.txt,'' respectively.)  Prior to the
meeting, email discussion of these documents had progressed to the point
where there was general satisfaction with the contents, and this was the
final review prior to submitting the drafts to the IAB for approval.

There were some changes in content to the first document,
``Multiprotocol Interconnect over Frame Relay Networks.''  The group

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agreed that the preferred method of indicating protocols other than IP
was via a Network Layer Protocol ID (NLPID) value of 0x80 and SNAP. The
option of indicating the Ethertype via an NLPID value of 0xCE was
de-emphasized, and text describing this approach was moved to an
appendix of the document.

A second change to the document was the explicit depiction of the
encoding of bridged MAC frames.  This text was added to minimize the
possibility of incompatible implementations.

The two other documents were reviewed and adopted without significant
modifications.

Keith Mader asked the group to consider developing a protocol by which
end points can negotiate configuration and service parameters over Frame
Relay permanent virtual circuits (PVCs).  Keith also asked whether the
OUI/PID value of 0x00-80-C2 0x00-0E could be used to indicate this
protocol.  The group agreed to undertake this work with the caveat that
the work should not be extended into the realm of signaling.  Fred Baker
suggested that a useful distinction between negotiation and signaling is
that the former is between end stations and the latter is between an end
station and the network.  Keith offered to develop a baseline document
which could accompany a request to the IEEE 802.1 Working Group for a
PID value.

By the end of Tuesday, July 30, the group was satisfied with the
modified documents and agreed to submit them to the IAB for approval.
Caralyn Brown was scheduled to give a presentation to the plenary on
Wednesday evening describing the approach taken by the group.

Wednesday, July 31, 1991

All of Wednesday was spent discussing address resolution across large
public data networks, with an emphasis on SMDS. John Hagan of the
University of Pennsylvania and John Garrett of AT&T Bell Laboratories
presented a discussion of ``directed ARP,'' a technique in which ARP
requests are sent to the source of routing information rather than
broadcast to all participants in a Logical IP Subnetwork (LIS).

``Directed ARP'' brought into question a fundamental assumption of the
Internet, which is that if the network portion of the IP addresses of
two devices differ, then these devices are attached to different
networks and can only communicate via an intermediary router.  The group
debated the benefits and costs of violating this assumption and ended by
recognizing that the IPLPDN Working Group could not resolve this issue
and that other Working Groups of the IETF should become involved.

Paul Tsuchiya then presented a discussion of an alternative approach
which makes use of BGP, and he expressed approval of the directed ARP
technique.  The group felt that a combination of directed ARP with an
enhanced BGP may represent a solution to the address resolution and
routing issues.  Paul offered to work with John Hagan and John Garrett
to investigate a synthesis of their approaches before the next IETF
meeting.

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Thursday Morning, August 1, 1991

Dory Leifer led a discussion of IP over circuit ISDN which focused on
the relative merits of the Point-to-Point Protocol (PPP) and Frame Relay
for use over the B channel.  No resolution of reached, though members of
the group volunteered to augment the Frame Relay approach with
negotiation procedures, and the group agreed to discuss the topic again
during the next meeting.

As a final topic, the draft written by Robert Ullman for IP over X.25
was discussed.  Andy Malis and George Clapp volunteered to contact
Robert and to investigate the possibility of updating RFC 877 during the
interim.

In closing, the Chair congratulated the Working Group for a very
productive meeting and thanked members for their hard work in drafting
and revising the documents.  The group then adjourned.

Attendees

Vikas Aggarwal           [e-mail]
Fred Baker               [e-mail]
Tom Benkart              [e-mail]
Arthur Berggreen         [e-mail]
Helen Bowns              [e-mail]
Caralyn Brown            [e-mail]
Carter Bullard           [e-mail]
Eric Carroll             [e-mail]
Charles Carvalho         [e-mail]
Cho Chang                [e-mail]
John Chang               [e-mail]
Peter Chang              [e-mail]
Richard Cherry           [e-mail]
George Clapp             meritec![e-mail]
Richard Cogger           [e-mail]
Nabil Damouny            [e-mail]
Jill Foster              [e-mail]
Stephen Gabe             [e-mail]
John Garrett             [e-mail]
Robert Griffioen         [e-mail]
John Dotts Hagan         [e-mail]
Tony Hain                [e-mail]
Joel Halpern             [e-mail]
Frank Heath              [e-mail]
B.V. Jagadeesh           [e-mail]
Manu Kaycee              [e-mail]
Tom Kessler              [e-mail]
Paulina Knibbe           [e-mail]
Joseph Lawrence          [e-mail]
John Leddy               [e-mail]
Dory Leifer              [e-mail]
Chao-Yu Liang            [e-mail]
Daniel Long              [e-mail]
John Lynn                [e-mail]

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Shane MacPhillamy        [e-mail]
Keith Mader              [e-mail]
Andrew Malis             [e-mail]
Allison Mankin           [e-mail]
Bill Manning             [e-mail]
Bernie May               [e-mail]
Chandy Nilakantan        [e-mail]
Michael O'Dell           [e-mail]
David O'Leary            [e-mail]
Philippe Park            [e-mail]
Bradford Parker          [e-mail]
Radia Perlman            [e-mail]
James Philippou          [e-mail]
David Piscitello         [e-mail]
Lars Poulsen             [e-mail]
K.K. Ramakrishnan        [e-mail]
James Rees               [e-mail]
Ron Roberts              [e-mail]
Frank Solensky           [e-mail]
Wayne Staats             [e-mail]
Martha Steenstrup        [e-mail]
Osamu Takada             [e-mail]
Mike Truskowski          [e-mail]
Paul Tsuchiya            [e-mail]
Chris Waters-Pierandozzi [e-mail]
L. Michele Wright        uncng![e-mail]
Wengyik Yeong            [e-mail]
Chin Yuan                [e-mail]



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