IPng Requirements BOF (NGREQS)
Reported by Jon Crowcroft/University College London
The IPNG Requirements BOF met on the morning of 31 March 1994. The goal
of the meeting was to review the ``Technical Criteria for Choosing
IP:The Next Generation (IPng)'' Internet-Draft
(draft-kastenholz-ipng-criteria-01.txt).
The meeting was broken into two parts, short presentations by several
experts in particular technologies, followed by a general discussion.
The technical presentation part of the discussion lasted for about one
hour. Several people gave brief, three minute, presentations on the
requirements that their own particular technology had on IPng. This was
very similar to the White Paper process used by the IPng Directorate,
though much less formal. A brief open discussion also followed each
presentation.
Network-layer Security
Mike St. Johns gave a brief presentation on network-layer security. He
described the functions that would be needed in order to properly secure
the network layer. Among them: privacy and authentication of packets,
key distribution, and access and resource control.
In the open discussion, the group expressed its sentiments that security
must be present in IPng and that the requirements should be worded as
strongly as possible.
Mobility
Greg Minshall gave a talk about mobility. Several points that he
brought out were that firewalls are bad for mobility, the control
protocol (ICMPng) should have large data fields, separate addresses and
end endpoint identifiers are highly desirable, and that router discovery
is necessary.
In the ensuing open discussion two points were brought up:
o There is a need for larger data areas in ICMPv4 error messages for
transition and coexistence.
o The group wants both mobility and portability in IPng.
Network Services
Dave Clark gave a talk about network services. His points included that
IPng be able to efficiently map packets into services, that there be
security for this class mapping scheme, and that highly sophisticated
routing be available that can do things like select providers, route
according to desired services, and so on.
AVT and MMUSIC Work
Mark Handley gave a brief talk about the AVT and MMUSIC work. He
indicated that for these areas, low delay and high reliability in the
network were to be particularly favored. Also, he said that larger MTUs
and smaller headers were desirable.
RSVP
Lixia Zhang talked about RSVP. RSVP's particular concerns were that the
routes be stable and that endpoints be notified if routes change, that
the routing be able to route based on QOS information, and that a
network user must be able to prove that the network is providing the
desired service level.
IPng
Peter Ford gave a brief talk on IPng from the perspective of a network
operator. The important points that he brought out were that one must
be able to do provider selection, and that the network operators must be
able to control the routing within their networks in order to do things
like load-shedding and balancing, switching to backup routes, and the
like.
John Curran gave a talk indicating that IPng must give end users a
strong incentive to migrate to IPng and leave IPv4. Simply being able
to deal with larger networks (i.e., larger address spaces) would not be
sufficient.
General Discussion
The group then had a general, open discussion. Additional points were
raised and discussed.
o Convergence. Several members of the group expressed a desire that
IPng provide for convergence for all protocol families (e.g., OSI,
NetWare, XNS, and so on). Some felt that this was just plain
silly, some felt that this was useful but not a technical
requirement, and others felt that it was a technical requirement.
This discussion continued for some time, with no real resolution.
o The group expressed a desire to have a larger minimum packet size.
o Address assignment must be delegated as far down the administrative
hierarchy as possible.
o Automatic configuration must not preclude manual configuration.
o It was pointed out that the automatic configuration requirements
apply only to the internet-layer (analogous to getting the IP
address and network mask in today's IP). Higher layer configuration
issues (e.g., registering with the DNS) are important, but are
explicitly not addressed in the document.
o A general discussion of architectural issues was held. This
discussion was cut off by lack of time.
Attendees
Michael Anello mike@xlnt.com
David Arneson arneson@ctron.com
Jim Barnes barnes@xylogics.com
Nutan Behki nebhki@newbridge.com
Steven Berson berson@isi.edu
Richard Binder rbinder@cnri.reston.va.us
Erik-Jan Bos erik-jan.bos@surfnet.nl
Jim Bound bound@zk3.dec.com
Robert Braden braden@isi.edu
Michael Bradley bradley@mdd.comm.mot.com
Scott Bradner sob@harvard.edu
Robert Brenner Robert.W.Brenner@gte.sprint.com
Steve Buchko stevebu@newbridge.com
Randy Bush randy@psg.com
Ross Callon rcallon@wellfleet.com
John Carlson johnc@cac.washington.edu
Brian Carpenter brian@dxcoms.cern.ch
Luo-Jen Chiang ljc@lsnhbu1.lincroftnj.ncr.com
J. Noel Chiappa jnc@lcs.mit.edu
Chris Chiotasso chris@lightstream.com
Paul Ciarfella ciarfella@took.lkg.dec.com
Henry Clark henryc@oar.net
Bobby Clay clay@pscni.nasa.gov
Richard Colella colella@nist.gov
Alex Conta conta@lassie.lkg.dec.com
Richard Cornetti cornetti@wg.com
Curtis Cox ccox@wnyosi7.nctsw.navy.mil
Matt Crawford crawdad@fncent.fnal.gov
Jon Crowcroft jon@cs.ucl.ac.uk
Jonathon Crowhurst crowhurs@admin.ogi.edu
Bruce Davie bsd@bellcore.com
Farokh Deboo fjd@synoptics.com
Peter DiCamillo Peter_DiCamillo@brown.edu
Avri Doria avri@proteon.com
Kjeld Borch Egevang kbe@craycom.dk
Havard Eidnes havard.eidnes@runit.sintef.no
Robert Elz kre@mulga.cs.mu.oz.au
Roger Fajman raf@cu.nih.gov
Robert Fink rlfink@lbl.gov
William Fink bill@wizard.gsfc.nasa.gov
H. Tom Fitzpatrick fitz@ddn.af.mil
Eric Fleischman ericf@atc.boeing.com
Vince Fuller vaf@barrnet.net
Eugene Geer ewg@cc.bellcore.com
Shawn Gillam shawn@timonware.com
William Gilliam wag@cup.hp.com
Robert Gilligan Bob.Gilligan@Eng.Sun.Com
Peter Grehan grehan@flotsm.ozy.dec.com
Mark Handley mhandley@cs.ucl.ac.uk
Darren Hardy hardy@cs.colorado.edu
Eugene Hastings hastings@psc.edu
Kenneth Hays hays@scri.fsu.edu
Denise Heagerty denise@dxcoms.cern.ch
Greg Hill ghill@atmsys.com
Robert Hinden hinden@eng.sun.com
Don Hoffman hoffman@eng.sun.com
Mike Holloway mikeh@newbridge.com
John Hopprich hopprich@davidsys.com
Jack Houldsworth J.Houldsworth@ste0906.wins.icl.co.uk
Steven Hubert hubert@cac.washington.edu
Jinho Hur jhhur@cosmos.kaist.ac.kr
Yoshinobu Inoue shin@hodaka.mfd.cs.fujitsu.co.jp
Phil Irey pirey@relay.nswc.navy.mil
David Jacobson dnjake@vnet.ibm.com
Frank Kastenholz kasten@ftp.com
Yasuhiro Katsube katsube@mail.bellcore.com
Manu Kaycee kaycee_m@timeplex.com
Berry Kercheval kercheval@parc.xerox.com
Paulina Knibbe knibbe@cisco.com
Mark Knopper mak@aads.net
John Krawczyk jkrawczy@wellfleet.com
Padma Krishnaswamy kri@cc.bellcore.com
William Kwan kwan@crosscomm.com
Paul Leach paulle@microsoft.com
John Leong john.leong@andrew.cmu.edu
Tony Li tli@cisco.com
Fong-Ching Liaw fong@eng.sun.com
Arthur Lin yalin@srv.pacbell.com
Kim Long klong@nysernet.org
Charles Lynn clynn@bbn.com
Tracy Mallory tracym@3com.com
Allison Mankin mankin@cmf.nrl.navy.mil
Bill Manning bmanning@rice.edu
J. Scott Marcus smarcus@bbn.com
David Marlow dmarlow@relay.nswc.navy.mil
Yosi Mass yosi@ubique.co.il
Matt Mathis mathis@psc.edu
Daniel McDonald danmcd@itd.nrl.navy.mil
David Miller dlm@cac.washington.edu
Doug Montgomery dougm@osi.ncsl.nist.gov
Dennis Morris morrisd@cc.ims.disa.mil
Rina Nathaniel rina@rnd-gate.rad.co.il
Mark Needleman mhn@stubbs.ucop.edu
Ngoc-Lan Nguyen lnguyen@icp.net
William Nowicki nowicki@sgi.com
Donald Pace pace@cntfl.com
Richard Paine painer@ct.si.cs.boeing.com
Andrew Pearson pearson@snmp.com
Maryann Perez perez@cmf.nrl.navy.mil
Radia Perlman perlman@novell.com
David Piscitello dave@corecom.com
J. Mark Pullen mpullen@cs.gmu.edu
Ron Roberts rgr@stanford.edu
Francois Robitaille francois.robitaille@crim.ca
Robert Roden roden@roden.enet.dec.com
Duncan Rogerson d.rogerson@nosc.ja.net
Michal Rozenthal michal@fibronics.co.il
Hal Sandick sandick@vnet.ibm.com
Corey Satten corey@cac.washington.edu
Chris Seabrook cds@ossi.com
Isil Sebuktekin isil@nevin.bellcore.com
Michael Seibel mikes@cac.washington.edu
Ming-Jye Sheu msheu@vnet.ibm.com
Allyson Showalter allyson@nsipo.arc.nasa.gov
Frank Solensky solensky@ftp.com
Michael Speer michael.speer@sun.com
Barbara Sterling bjs@mcdata.com
Mark Swanson marks@ngc.com
John Tavs tavs@vnet.ibm.com
Richard Thomas rjthomas@bnr.ca
Susan Thomson set@bellcore.com
Robert Ullmann rullmann@crd.lotus.com
Tony Valle valle@huntsville.sparta.com
Willem van der Scheun scheun@sara.nl
Curtis Villamizar curtis@ans.net
Maria Vistoli vistoli@infn.it
Ruediger Volk rv@informatik.uni-dortmund.de
Justin Walker justin@apple.com
William Warner warner@ohio.gov
Jost Weinmiller jost@prz.tu-berlin.de
Cathy Wittbrodt cjw@barrnet.net
John Wroclawski jtw@lcs.mit.edu
Charles Young Charles.E.Young@att.com
Lixia Zhang lixia@parc.xerox.com