CURRENT MEETING REPORT
Minutes of the RSVP and INTSERV over
ATM BOF (tspatm)
Reported by Jeffrey Dunn, Hewlett-Packard,
Evi Nemeth, University of Colorado, and Andrew Malis, Ascom Nexion,
Inc
This BOF met with the intention of both
presenting technical proposals for adapting Integrated Services
and the RSVP protocol to ATM subnets, and discussing the procedure
the IETF should use to pursue such work. There were 170 attendees.
Agenda
Due to the length of the agenda, the chair
asked that the presentations be as brief and succinct as possible.
Int-Serv ATM interface
Craig Partridge's talk made the argument
that it is easy to map from the Guaranteed and Controlled Load
services to ATM connection quality of services specifications,
and he discussed some proposed mappings. There are still some
issues to be addressed, especially delay measurement.
Support for RSVP based services over
an ATM network
Dilip Kandlur proposed RSVP changes to optimize
its performance over ATM and leverage ATM features such as signaling
and traffic management. In particular, he proposed that mechanisms
be added to RSVP to allow ATM shortcut VCs to be established.
He also proposed changes in ATM signaling to permit a better fit
to the int-serv QoS specifications.
RSVP and IP over ATM
Steve Berson gave an overview-oriented talk
as he compared RSVP and ATM features and mechanisms, and presented
a variety of scenarios of how both homogeneous and heterogeneous
multicast reservations could be mapped to ATM. His goal is to
make the interworking of the two technologies as seamless as possible.
Issues for RSVP and Integrated Services
over ATM
Eric Crawley listed a number of issues that
must be addressed in order for RSVP to run over ATM, and proposed
a problem division and plan of action that included IETF working
groups, the ATM Forum, IEEE, and possibly other organizations.
Native ATM Support in the Internet
Steve Jackowski presented ST2 /ST2+ as a
possible alternate to RSVP for providing the Integrated Services
QoS over ATM and other heterogeneous subnet technologies.
Current Status of ST2 over ATM experiment
at NTT Telecommunication Networks Laboratories
Muneyoshi Suzuki presented the current status
of NTT's ST2 over ATM experimentation, using TV quality motion-JPEG
video and CD/DAT quality stereo audio transmissions.
Another IP Signaling Protocol using IP
(IP-SVC)
Kenji Fujikawa presented IP-SVC, which is
a mechanism for establishing soft-state IP-level "SVCs"
over an underlying PVC-based ATM network. It is currently being
tested using a Japan-wide PVC ATM network.
At this point, the meeting was running low
on time, and the chair announced that agenda items 9-11 would
be postponed. He then turned the floor over to Allison Mankin,
the Transport Area Director. She announced the IntServ over Foo
(isfoo) BOF, which was specifically charged with discussing the
formation of a working group to apply the Internet Integrated
Services architecture to various subnet technologies, including
ATM. [The BOF met the following morning and heard the remaining
presentations, and the BOF resulted in the formation of the issll
(Integrated Services Over Specific Lower Layers) working group.
Send a subscribe request to issll-request@mercury.lcs.mit.edu
to join the wg's email list.]
Following Allison's presentation, the session
adjourned.