CURRENT_MEETING_REPORT_ Reported by Frank Solensky/FTP Software, Inc. Minutes of the Address Lifetime Expectations BOF (ALE) Phill Gross gave an updated version of the presentation he and Dennis Ferguson prepared for INET '93. It included an extensive analysis and projections of the growth of the Internet and also provided an estimate on how efficiently IP addresses were being assigned. The presentation concluded with several ideas on how the address space utilization could be improved after CIDR has been deployed: o Reclaiming IP network numbers which are assigned but not connected to the Internet. o Tougher address assignment policies. o Encouraging connected networks to renumber into a smaller portion of either their assigned net number (freeing up the rest of that net number for reassignment) or within their provider's range of addresses (removing the need to announce the original net number between providers). The ensuing discussion was invaluable for setting the direction of the ongoing analysis. Some of the points that came out of that discussion were: o A better feel is needed for the accuracy of the data that has been collected thus far. For example, it was discovered during the discussion that some of the regional carriers have not been reporting IP address assignments back to the NIC since there was not any place on their templates to provide this information. o The IP address assignment and routing table size problems must be kept separate from each other at all times. These are two different problems that have different factors driving them. o It is necessary to carefully avoid combining the data collected under different policy ranges into a single trend line. o Any graph produced that extends a trend line into the future must always carry the caveat that it is based on historic information. It cannot be predicted how future technologies or applications might further impact the growth of the Internet. o Routing table statistics should be collected from a wider variety of sources, since the Internet can no longer be thought of as 1 having a single backbone. o It is necessary to evaluate and gather data about the impact (e.g. cost, expected gains) of any policy changes before the group makes specific recommendations. o All of the providers must buy into any recommendations made that affect them. For example, if most but not all network providers suggest renumbering to their customers, the entire benefit could be lost if one ``bad guy'' provider decides to get new customers by allowing them to connect using their old numbers. Frank Solensky also presented some of his more recent findings on the effect of CIDR on the routing table size (this also appeared in Tony Li's technical presentation on `CIDR Status' earlier in the day) and the trend lines for the proportion of the total address space that announced Class B and Class C net numbers consume. He also cautioned that the switch from announcing single Class B to multiple Class C network numbers has occurred too recently for the trend line to be considered reliable. The creation of the ALE Working Group charter was deferred as an action for the mailing list. Discussions are now wrapping up and the charter should be completed shortly. Attendees Andy Adams ala@merit.edu James Allard jallard@microsoft.com Vadim Antonov avg@icm1.icp.net Susie Armstrong susie@mentat.com William Barns barns@gateway.mitre.org Tony Bates tony@ripe.net Nutan Behki nebhki@newbridge.com David Borman dab@cray.com Erik-Jan Bos erik-jan.bos@surfnet.nl Jim Bound bound@zk3.dec.com Scott Bradner sob@harvard.edu David Bridgham dab@epilogue.com Ronald Broersma ron@nosc.mil Steve Buchko stevebu@newbridge.com Jeffrey Burgan jeff@nsipo.nasa.gov Ross Callon rcallon@wellfleet.com Peter Cameron cameron@xylint.co.uk George Chang gkc@ctt.bellcore.com John Chang jrc@uswest.com Enke Chen enke@merit.edu J. Noel Chiappa jnc@lcs.mit.edu Henry Clark henryc@oar.net Alan Clegg abc@concert.net 2 Richard Colella colella@nist.gov Matt Crawford crawdad@fncent.fnal.gov John Curran jcurran@nic.near.net James Davin davin@thumper.bellcore.com Michael Davis mike@dss.com Chuck de Sostoa chuckd@cup.hp.com Donald Eastlake dee@skidrow.lkg.dec.com Havard Eidnes havard.eidnes@runit.sintef.no Robert Enger enger@seka.reston.ans.net Dario Ercole Dario.Ercole@cselt.stet.it Roger Fajman raf@cu.nih.gov Dino Farinacci dino@cisco.com Dennis Ferguson dennis@ans.net Carlos Fernandez carlos@plk.af.mil Dale Finkelson dmf@westie.mid.net Eric Fleischman ericf@atc.boeing.com Peter Ford peter@goshawk.lanl.gov Dan Frommer dan@isv.dec.com Vince Fuller vaf@barrnet.net John Gawf gawf@compatible.com Vincent Gebes vgebes@sys.attjens.co.jp Daniel Hansen dan@ngc.com Herluf Hansen hha@tbit.dk Dimitry Haskin dhaskin@wellfleet.com Eugene Hastings hastings@psc.edu Denise Heagerty denise@dxcoms.cern.ch Roland Hedberg Roland.Hedberg@rc.tudelft.nl Matt Hood hood@nsipo.nasa.gov Kathy Huber khuber@wellfleet.com Phil Irey pirey@relay.nswc.navy.mil Ronald Jacoby rj@sgi.com Dale Johnson dsj@merit.edu Matthew Jonson jonson@ddn.af.mil Merike Kaeo mkaeo@cisco.com Janine Kamerdze kamerdze@nsipo.nasa.gov Akira Kato kato@wide.ad.jp Hiroshi Kawazoe kawazoe@trl.ibm.co.jp Sean Kennedy liam@nic.near.net Edwin King eek@atc.boeing.com John Krawczyk jkrawczy@wellfleet.com Sundar Kuttalingam sundark@wiltel.com Olav Kvittem Olav.Kvittem@uninett.no Kim Long klong@sura.net Peter Lothberg roll@stupi.se Thang Lu tlu@mcimail.com Dan Magorian magorian@ni.umd.edu Allison Mankin mankin@cmf.nrl.navy.mil David Marlow dmarlow@relay.nswc.navy.mil Matt Mathis mathis@psc.edu Jun Matsukata jm@eng.isas.ac.jp Michael McLay mclay@eeel.nist.gov Stephen Miller smiller@bbn.com Pushpendra Mohta pushp@cerf.net Dennis Morris morris@altair.disa.mil 3 Andrew Partan asp@uunet.uu.net Brad Passwaters bjp@eng.umd.edu Michael Patton map@bbn.com Alex Reijnierse a.a.l.reijnierse@research.ptt.nl Allen Rochkind Allen_Rochkind@3com.com Robert Roden roden@roden.enet.dec.com Benny Rodrig brodrig@rnd-gate.rad.co.il Shawn Routhier sar@epilogue.com Hal Sandick sandick@vnet.ibm.com Erik Sherk sherk@sura.net Ming Sheu msheu@vnet.ibm.com Uttam Shikarpur uttam@zk3.dec.com Frank Solensky solensky@ftp.com John Stewart jstewart@cnri.reston.va.us Bernhard Stockman boss@ebone.net Vladimir Sukonnik sukonnik@process.com Steve Suzuki steve@fet.com Larry Tepper ltepper@compatible.com Matsuaki Terada tera@sdl.hitachi.co.jp Marten Terpstra marten@ripe.net Richard Thomas rjthomas@bnr.ca Claudio Topolcic topolcic@cnri.reston.va.us Raymond Vega rvega@cicese.mx Thomas Walsh tomw@kalpana.com William Warner warner@ohio.gov Guy Wells guyw@uswest.com Chris Wheeler cwheeler@cac.washington.edu Cathy Wittbrodt cjw@barrnet.net Jane Wojcik jwojcik@bbn.com Jessica Yu jyy@merit.edu 4