CURRENT_MEETING_REPORT_


Reported by Dave Crocker/Silicon Graphics

Minutes of the IP Address Encapsulation Working Group (IPAE)

The IPAE Working Group met once during the Columbus IETF. Since IPAE
re-aligned itself to provide transition technology for SIP, the foci of
IPAE discussions have been.


  1. Modifications to SIP that are likely to facilitate transition, and
  2. Implementation experiences with SIP/IPAE.


(Reference to IPAE usage is specifically to SIP-over-IP and
SIP-mapped-to-IP. The first is to tunnel through the Internet and the
second is to gateway to IPv4 hosts.)

The Working Group meeting held a brief discussion about the SIP/IPAE
demonstration slated for later in the week, discussing the
implementations being shown and their use.

Bob Gilligan and Ron Jacoby discussed their implementation work.  The
Beame & Whiteside, Intercon, TGV and Network General implementations,
for DOS & Windows MacIntosh, VMS and network monitoring, respectively,
were not available to make presentations.

Then, Steve Deering raised the issue about whether SIP fragmentation is
end-to-end only, or can occur en-route.  He is interpreting the Group's
response as supporting the position that SIP fragmentation need *not*
occur en-route.

The following day began a rest-of-the-week demonstration of SIP/IPAE in
action.  All of the listed vendors had implementations participating.
Within the demo facility, hosts interacted with pure SIP (SIP to SIP)
and with pure IP (of course) and went through the unmodified Internet to
interact with other SIP hosts, using IPAE tunneling (SIP-over-IP). While
the Sun workstation can perform IPAE translation, operational
constraints limited the demonstration so that SIP-mapped-to-IP
translation was not included.

Attendees

Randall Atkinson         atkinson@itd.nrl.navy.mil
Dennis Baker             dbaker@wellfleet.com
David Crocker            dcrocker@mordor.stanford.edu
Steve Deering            deering@parc.xerox.com
Christine Fredenburg     cfredenburg@dsac.dla.mil
Danny Hanson             hanson.tic@commlan.safb.af.mil
John Hascall             john@iastate.edu
Ronald Jacoby            rj@sgi.com

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Scott Kaplan             scott@wco.ftp.com
Kenneth Key              key@cs.utk.edu
John Krawczyk            jkrawczy@wellfleet.com
Charles Lynn             clynn@bbn.com
Gary Malkin              gmalkin@xylogics.com
Michael Marcinkevicz     mdm@csu.net
Erik Nordmark            nordmark@eng.sun.com
John Penners             jpenners@advtech.uswest.com
David Reese              dave@csu.net
Terry Sullivan           terrys@newbridge.com
L. Stuart Vance          vance@tgv.com
Curtis Villamizar        curtis@ans.net
Hung Vu                  hungv@fonorola.com
Fred Whiteside           fred@bws.com
Jane Wojcik              jwojcik@bbn.com



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