Subject: ATM BOF Minutes for AIW8

From: "J. G. Dudley (444/4358)" <[email-masked]>
Date: Wed, 30 Aug 95 18:17:33 EDT

Greetings,
Attached are my minutes of the ATM BOF in Raleigh on 8/24/95.

Gary Dudley
------------------------------------------------------------------------
Minutes of ATM BOF at AIW8

Gary Dudley opened the BOF with a proposed agenda that was agreed to by
the attendees.  IBM's proposal for HPR native access of ATM was included
in the AIW8 binders given to each AIW attendee at registration.  Gary
proposed the following schedule for AIW development of the HPR/ATM
architecture:

AIW8   IBM proposal (AD level) submitted
AIW9   AD approval
AIW10  AP approval
AIW11  CP approval

Gary stated that this schedule was suggested based on the following
assumptions:

1. There continues to be a consensus in the ATM BOF that:
   - The AIW should develop an architecture for APPN native access to
     ATM.
   - HPR and RTP can be prerequisites for this architecture.
2. Upon review, there is a consensus that the IBM proposal is a
   satisfactory basis to start the HPR/ATM architecture development.
3. Work will proceed in a timely manner.

There was agreement with assumptions 1 and 3.  Discussion of assumption
2 and the acceptability of the schedule was postponed until the IBM
proposal had been reviewed.

Gary then led a section-by-section walk through of the document
indicating the contents of each section, pointing out areas that
deserved particular attention, answering questions, and accepting
comments.

Comments included the following:

- When the reserved bandwidth on an access link reaches the threshold,
  the links should be quiesced rather than inactivated (Dave Bryant).
  There was agreement that this was a good idea.
- APPN should be enhanced to let COS tables be distributed using the
  CDS model (Dave Bryant).  This idea is independent of ATM; there
  was agreement that this should be handled separately from the HPR/ATM
  architecture.
- Several people suggested that it would be better to use a different
  switching mode rather than a different NCE to route incoming packets
  to LDLC.  There was agreement that this was a good idea.
- The APPN MIB (rather than the HPR MIB) should point to the ATM MIB
  (Bob Moore).
- Consideration should be given to setting the security field in
  TG characteristics to "public switched network" for ATM WAN PVCs (Jim
  Cobban).
- The AIW should give priority to filling in details on LDLC and COS
  to QoS mapping (Anson Chen).

Gary suggested and the BOF agreed that the AIW should adopt the following
interoperability recommendations:

- APPN products needing to support LAN emulation should implement
  the ATM Forum architecture defined in af-lane-0021.000, LAN Emulation
  over ATM - Version 1.0.
- APPN products needing to support frame relay interworking should
  implement frame relay "network" interworking using the Frame Relay
  SSCS of ATM Adaptation Layer type 5.

Upon completion of the review of the IBM proposal, the BOF returned to
consideration of the proposed schedule.  There was a consensus that the
IBM proposal was a satisfactory basis for the HPR/ATM architecture
work.  In addition, the BOF agreed that the proposed schedule was
satisfactory.

At the HPR SIG the previous day, IBM had proposed that, pending the
approval of the ATM BOF, the HPR/ATM architecture be developed under the
auspices of the HPR SIG.  The HPR SIG agreed to accept this work.
There was consensus at the ATM BOF that this arrangement was acceptable.
As a result, discussions on HPR/ATM are being moved to the HPR mail
exploder.

---

From: Dave Finnie <[email-masked]>
Date: Thu, 31 Aug 1995 08:38:03 +1000

Gary,

Is there an electronic copy of the IBM proposal for native access of
ATM ? If not, could you please make one available ? Thanks.

Dave