CURRENT_MEETING_REPORT_ Reported by Mark Knopper/Merit Minutes of the TCP/UDP over CLNP-Addressed Networks Working Group (TUBA) The meeting was called to order by Mark Knopper and Peter Ford, co-chairs. Dave Katz volunteered to act as recording secretary. Mark Knopper presented the agenda. CLNP Multicast Dave Marlow reported on the progression of CLNP Multicast work at the recent ISO SC6 meeting in Seoul. There are currently four documents in progression---changes to the network addressing addendum, extensions to the CLNP and ES-IS protocols, and a change to the network service definition. Documentation of these changes will be released as an Internet-Draft. The Group Network Addressing addendum has progressed to Full Standard status. This document describes the syntax of multicast NSAP addresses. The extensions to CLNP have been issued for Draft Amendment (DAM) ballot. This is the final balloting stage before full standardization (similar to Draft Internet Standard status). The changes include a new packet type (so that unicast-only routers do not try to default-forward multicast packets, which could create packet-exploder loops) and two types of scope control. The ES-IS extensions have also been issued for DAM ballot. These changes provide for the ability of end systems to join multicast groups, as well as for dynamic mapping between network and subnetwork multicast addresses. The change to the Network Service definition adds multicast capability to the abstract network service. There has been no significant work on multicast routing, as ANSI is looking to work with the IETF for technical contribution in this area. Possibilities include MOSPF-like extensions to IS-IS, CBT, and ESL. NSAP Addressing Guidelines Document Ross Callon reported on the status of the NSAP Addressing Guidelines document. A new version has been made available as an Internet-Draft. Changes in the new version consist primarily of updated document references. Several people mentioned that they thought the current document was overly ``backbone-centric,'' as the Internet routing hierarchy has changed considerably since the document was originally written. An action item was taken to recast this section of the document. CLNP Projects Yakov Rekhter gave a brief overview of two projects just getting started in ISO concerning CLNP. The first describes a coding method for option types that provides a hook for transparently adding options. The code indicates which options are required to be processed by routers and/or hosts, even when the option is otherwise unrecognized. The second project extends the Quality of Service (QoS) option to provide a bit to request strong (vs. weak) QoS forwarding, as well as a bit to say whether or not the requested OoS was delivered along the entire path when weak QoS forwarding is in effect. CLNP Mobility A discussion then ensued on the subject of CLNP mobility. Mark Knopper briefly described CDPD, a specification for cellular mobile data service from a consortium of cellular carriers. The system uses CLNP as the primary protocol, and provides IP service using IP-over-CLNP encapsulation. The mobility protocol is quite similar to ongoing work in the Mobile IP Working Group. The group discussed whether or not it should be proactive, or wait for the Mobile IP Working Group to settle. Yakov Rekhter and Dave Piscitello agreed to recast the mobile IP document in terms of CLNP and make it available as an Internet-Draft. Extensions to OSI for Use in the Internet BOF (OSIEXTND) Dave Katz briefly updated the group on the status of OSIEXTND. The IESG has issued a formal statement limiting official IETF participation to ongoing ``OSI-related work.'' No new working groups in this area will be chartered until such time as the liaison issue between ISO and ISOC has been settled, or until six months pass. What was not clearly stated at the time was that this action does not apply to anything that could be construed as in support of TUBA. As the majority of the items of work proposed at the OSIEXTND BOF are directly related to TUBA, the net effect is that work will progress in existing working groups. To that end, Dave Katz then presented a proposed extension to ES-IS to add functionality to the standard dynamic NSAP address assignment function. The extension would allow the end system to suggest a system ID to the entity assigning the addresses, which would then fill in the remainder of the NSAP address if it so chose. A second contribution describing the overall dynamic address assignment mechanism was also presented. Both documents will be made available as Internet-Drafts. Dual Stack Transition Peter Ford presented his draft document on the Dual Stack Transition plan. It is an ``inside out'' approach that begins with infrastructure deployment. It was pointed out that this transition framework needed to be completed as soon as possible. The document is available as an Internet-Draft. Attendees Nick Alfano alfano@mpr.ca Susie Armstrong susie@mentat.com Richard Binder rbinder@cnri.reston.va.us Rebecca Bostwick bostwick@es.net Scott Bradner sob@harvard.edu Arthurine Breckenridge arbreck@sandia.gov Glen Cairns cairns@mprgate.mpr.ca Ross Callon rcallon@wellfleet.com George Chang gkc@ctt.bellcore.com John Chang jrc@uswest.com Enke Chen enke@merit.edu Richard Colella colella@nist.gov Michael Conn 4387451@mcimail.com Dino Farinacci dino@cisco.com Robert Fink rlfink@lbl.gov Peter Ford peter@goshawk.lanl.gov Peter Furniss p.furniss@ulcc.ac.uk Eugene Geer ewg@cc.bellcore.com Tony Genovese genovese@es.net Herluf Hansen hha@tbit.dk Susan Hares skh@merit.edu Denise Heagerty denise@dxcoms.cern.ch Kathy Huber khuber@wellfleet.com David Jacobson dnjake@vnet.ibm.com Dave Katz dkatz@cisco.com Mark Knopper mak@merit.edu Walter Lazear lazear@gateway.mitre.org Tracy Mallory tracym@3com.com Allison Mankin mankin@cmf.nrl.navy.mil David Marlow dmarlow@relay.nswc.navy.mil Matt Mathis mathis@psc.edu Greg Minshall minshall@wc.novell.com Doug Montgomery dougm@osi.ncsl.nist.gov Robert Moose rmoose@gateway.mitre.org Dennis Morris morris@altair.disa.mil Dan Nordell Radia Perlman perlman@novell.com David Piscitello wk04464@worldlink.com Alex Reijnierse a.a.l.reijnierse@research.ptt.nl Yakov Rekhter yakov@watson.ibm.com Dallas Scott scott@fluky.mitre.org Erik Sherk sherk@sura.net Vladimir Sukonnik sukonnik@process.com Larry Tepper ltepper@compatible.com Michael Thatcher thatcher@rahul.net Richard Thomas rjthomas@bnr.ca Robert Ullmann ariel@world.std.com John Veizades veizades@ftp.com William Warner warner@ohio.gov Gerry White gerry@lancity.com Scott Williamson scottw@nic.ddn.mil Cathy Wittbrodt cjw@barrnet.net Jane Wojcik jwojcik@bbn.com Jessica Yu jyy@merit.edu