Internet Info 1997 December/Internet_Info_CD-ROM_Walnut_Creek_December_1997.iso/ietf/mobileip/mobileip-minutes-94mar.txt

Text File | 1994-06-04 | 8KB | 177 lines

CURRENT_MEETING_REPORT_

Reported by Steve Deering/Xerox PARC and Dave Johnson/CMU

Minutes of the IP Routing for Wireless/Mobile Hosts Working Group
(MOBILEIP)


Administrative Matters

Steve Deering announced his resignation as co-chair of the working
group.  Greg Minshall will continue as sole chair for now, and may
select a new co-chair in the near future.


Meta Issues

John Penners suggested splitting the Foreign Agent-Home Agent protocol
specification from the Mobile Host-Foreign Agent protocol specification.
It was John's opinion that the FA-HA protocol could be agreed upon
immediately, while allowing multiple different MH-FA protocols to be
considered or implemented.  There was no immediate consensus in favor of
John's suggestion.

Yakov Rekhter suggested a number of changes to the mobile IP
architecture and/or specification:


   o Observe the distinction between functional decomposition and
     physical instantiation.  Example functions that might be
     instantiated in different ways are:

      -  temporary address assignment
      -  tunnel end-point
      -  accounting


   o Allow tunneling from the mobile host back to the Home Agent (i.e.,
     MH ! [FA] ! HA ! CH). Motivation:  desire to maintain a two-way,
     encrypted tunnel between an MH and its home base.  This suggestion
     triggered much discussion, with the rough consensus being that it
     would be a valuable option.

   o Extend the ICMP Router Discovery protocol to handle mobility
     beaconing, rather than inventing a new protocol.  Most people
     present thought this was an excellent suggestion, and it was
     adopted.  Note that this effects only the beaconing and
     solicitation functions of Mobile IP, not the other control
     messages---those other messages will still be carried by UDP,
     rather than ICMP, as agreed in previous meetings.

   o Support ``tunneling without encapsulation.''  This is a scheme in
     which, instead of encapsulating a packet to get it to a mobile
     host, the HA simply replaces the original destination address with
     the temporary remote address of the MH; since the MH also knows its
     own home address, it can restore the packet to its original form
     for local processing.  There was no enthusiasm for this proposal.

   o Support ``home subnets'' as logical entities only, with no
     associated physical link---ARP and local ICMP messages are
     ill-suited for the mobile environment.  The group was not willing
     to give up the option for MHs to have a physical home subnet, but
     agreed to move the physical home subnet procedures and list of
     problems/hazards to an appendix of the Mobile IP specification.


Charlie Perkins suggested that the procedures for ``ad-hoc networking''
be deleted from the base specification.  The group agreed to this
suggestion.


Section-by-Section Review of Current Draft

We then engaged (for the next session and a half) in a
section-by-section review of the (then) current Internet-Draft.  We did
not finish the detailed discussion of the complete current basic draft.
After running out of time in the meeting, we decided instead to continue
the discussion of the draft on the mailing list.  The draft editor
should produce a revised version of the draft in about two weeks,
incorporating the changes discussed at the meeting.  We will then hold
an open discussion period on the mailing list, where comments will be
accepted on the revised version of the portion of the draft that was
discussed at the meeting.  After some reasonable period of time (perhaps
one week) for these comments, we will then move on to similarly discuss
each remaining section of the draft on the mailing list, one at a time.


Attendees

Brian Adamson            [e-mail]
Juha-Pekka Ahopelto      [e-mail]
Kannan Alagappan         [e-mail]
Steve Alexander          [e-mail]
Edward Allen             [e-mail]
Michael Anello           [e-mail]
Randall Atkinson         [e-mail]
Dennis Baker             [e-mail]
Mohsen Banan             [e-mail]
Nutan Behki              [e-mail]
Richard Binder           [e-mail]
Jim Binkley              [e-mail]
Steven Blair             [e-mail]
Jon Boone                [e-mail]
Robert Brenner           [e-mail]
Dick Brooks              [e-mail]
Ken Carlberg             [e-mail]
John Carlson             [e-mail]
Brett Chappell           [e-mail]
Luo-Jen Chiang           [e-mail]
Cyrus Chow               [e-mail]
Paul Ciarfella           [e-mail]
Frank Ciotti             [e-mail]
Bob Cole                 [e-mail]
Stephen Deering          [e-mail]
Peter DiCamillo          [e-mail]
Pierre Dupont            [e-mail]
Kjeld Borch Egevang      [e-mail]
Antonio Fernandez        [e-mail]
William Gilliam          [e-mail]
William Haggerty         [e-mail]
Stuart Hale              [e-mail]
Duane Harkness           [e-mail]
Marc Hasson              [e-mail]
Scott Hinnrichs          [e-mail]
Kimio Ishii              [e-mail]
Bent Jensen              [e-mail]
David Johnson            [e-mail]
Scott Kaplan             [e-mail]
Phil Karn                [e-mail]
Alan Katz                [e-mail]
Manu Kaycee              [e-mail]
Edwin King               [e-mail]
John Leong               [e-mail]
Mark Lewis               [e-mail]
Tony Li                  [e-mail]
Shoshana Loeb            [e-mail]
Peter Lothberg           [e-mail]
J. Scott Marcus          [e-mail]
Brian Marsh              [e-mail]
Greg Minshall            [e-mail]
Kenneth Mueller          [e-mail]
Rina Nathaniel           [e-mail]
Ngoc-Lan Nguyen          [e-mail]
Erik Nordmark            [e-mail]
Masataka Ohta            [e-mail]
Donald Pace              [e-mail]
Richard Paine            [e-mail]
Charles Perkins          [e-mail]
James Philippou          [e-mail]
Rex Pugh                 [e-mail]
Ram Ramanathan           [e-mail]
James Rees               [e-mail]
Greg Ruth                [e-mail]
William Salkewicz        [e-mail]
Dallas Scott             [e-mail]
William Simpson          [e-mail]
Henry Sinnreich          [e-mail]
Frank Solensky           [e-mail]
Jim Solomon              [e-mail]
Martha Steenstrup        [e-mail]
Walter Stickle           [e-mail]
Shirley Sun              [e-mail]
Dan Tappan               [e-mail]
John Tavs                [e-mail]
Fumio Teraoka            [e-mail]
Chandu Thekkath          [e-mail]
Akihiro Tominaga         [e-mail]
Willem van der Scheun    [e-mail]
John Veizades            [e-mail]
Justin Walker            [e-mail]
Jost Weinmiller          [e-mail]
Geoff White              [e-mail]
Shian-Tung Wong          [e-mail]
Shinichi Yoshida         [e-mail]