Transition and Coexistence Including Testing BOF (TACIT) Reported by Geoff Huston/Australian Academic and Research Network The Transition and Coexistence Including Testing BOF (TACIT) met on Wednesday 29 March. The BOF discussed the issues relating to transition and coexistence in general terms as they relate to the constituency of the Internet, and also discussed the specific issues relating to potential IPng transition environments. The view was expressed that the characteristics and potential timeframe of transition, coexistence and testing processes will be greatly influenced through the interplay of market forces within the Internet, and that any IPng transition plan should recognise these motivations and provide ample levels of opportunity identification to encourage the broad Internet constituency to subscribe to the transition process (and therefore undertake to meet the associated deployment costs of such transition). The group decided to recommend to the IPng Area Directorate to form a working group to explore the generic issues of the IPng transition process and gather experience from previous technology transition that have occured both within the Internet and within related networking technologies. A draft charter was reviewed, with the view that this working group would contribute to the IETF IPng process by identifying these issues and reviewing IPng transition plans at the appropriate phase of the IPng process. Attendees Michael Anello mike@xlnt.com Tony Bates tony@ripe.net Jim Bound bound@zk3.dec.com Scott Bradner sob@harvard.edu Robert Brenner Robert.W.Brenner@gte.sprint.com Ross Callon rcallon@wellfleet.com Brian Carpenter brian@dxcoms.cern.ch Chris Chiotasso chris@lightstream.com Alex Conta conta@lassie.lkg.dec.com Tom Easterday tom@cic.net Kjeld Borch Egevang kbe@craycom.dk Havard Eidnes havard.eidnes@runit.sintef.no Erik Fair fair@apple.com Roger Fajman raf@cu.nih.gov Eric Fleischman ericf@atc.boeing.com Peter Ford peter@goshawk.lanl.gov Paul Francis francis@cactus.slab.ntt.jp Shoji Fukutomi fuku@furukawa.co.jp Shawn Gillam shawn@timonware.com Peter Grehan grehan@flotsm.ozy.dec.com Chris Gunner gunner@dsmail.lkg.dec.com Denise Heagerty denise@dxcoms.cern.ch Robert Hinden hinden@eng.sun.com Kathy Huber khuber@wellfleet.com Geoff Huston g.huston@aarnet.edu.au Yoshinobu Inoue shin@hodaka.mfd.cs.fujitsu.co.jp Vince Jones 72077.1615@compuserve.com Matthew Jonson jonson@ddn.af.mil Mark Knopper mak@aads.net Joshua Littlefield josh@cayman.com Kim Long klong@nysernet.org Allison Mankin mankin@cmf.nrl.navy.mil Matt Mathis mathis@psc.edu Greg Minshall minshall@wc.novell.com Dennis Morris morrisd@cc.ims.disa.mil Phil Nesser pjnesser@rocket.com Erik Nordmark nordmark@eng.sun.com Yakov Rekhter yakov@watson.ibm.com Ron Roberts rgr@stanford.edu Duncan Rogerson d.rogerson@nosc.ja.net Chris Seabrook cds@ossi.com Frank Solensky solensky@ftp.com Bernhard Stockman boss@ebone.net Tim Streater t.c.streater@dante.org.uk John Tavs tavs@vnet.ibm.com Richard Thomas rjthomas@bnr.ca Jerry Toporek jt@mentat.com Robert Ullmann rullmann@crd.lotus.com Maria Vistoli vistoli@infn.it William Warner warner@ohio.gov Jane Wojcik jwojcik@bbn.com Paul Zawada Zawada@ncsa.uiuc.edu