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Internet Info 1997 December
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93nov
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area.ipng.93nov.txt
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IP: Next Generation Area
Directors:
o Scott Bradner: sob@harvard.edu
o Allison Mankin: mankin@cmf.nrl.navy.mil
Area Summary reported by Allison Mankin/NRL
The IPNG Area co-Directors gave a plenary presentation on their plan for
the IPng decision process and introduced the IPng directorate.
Frank Solensky gave an introduction to the ALE BOF and the three IPng
proposals gave status reports during the IPng plenary session; Peter
Ford gave a status report on TUBA, Steve Deering gave an overview of
SIPP, and Rob Ullmann gave an overview of TP/IX (also known as CATNIP).
Address Lifetime Expectations BOF (ALE)
Phill Gross gave an update to the presentation he and Dennis Ferguson
prepared for INET '93 describing the growth of the Internet (in terms of
both assigned addresses and connected networks) and presented some
recommendations for increasing the efficiency of how IP addresses are
deployed. A lively discussion ensued.
The working group will be formed, combining resources with CIDR
deployment. The emphasis will be on the measurement and projections,
evaluating the potential impact of recommendations rather than
formulating recommendations itself.
There is also a pressing need to collect more information; all known
projections are based on incomplete data.
P. Internet Protocol Working Group (PIP) and Simple Internet Protocol
Working Group (SIP)
The PIP and SIP Working Groups have combined their efforts and the
working groups will be merged into a new working group called Simple
Internet Protocol Plus (SIPP). The two working groups met in two
combined sessions co-chaired by Steve Deering, Paul Francis, and Bob
Hinden.
At the first session Steve Deering presented an overview of the SIP/PIP
Merger. This included the motivation behind the merger, benefits of the
merger, and described the new features of SIPP. The purpose of the
merger is to keep the simplicity and transition features of SIP and to
benefit from the advanced routing capabilities of Pip---while making
them easier to use and to understand.
Following this Paul Francis presented the SIPP routing and addressing.
This included a description of address sequences and how they are used
for mobility, provider selection, and extended addressing. Ramesh
Govindan presented detailed examples of these usages of SIPP address
sequences.
A overview of the new IPAE draft was given by Bob Gilligan. He gave a
short overview of IPAE, and discussed and resolved several open issues.
Bill Simpson presented the current state of his work on SIPP neighbor
discovery. It focuses on a ``where are you'' and ``I am Here''
functions with optional extensions for additional functionality.
During the second session Rob Coltun presented his proposal for a
version of OSPF for SIPP. The group concluded that he should focus on
just extending OSPF to support 64-bit addresses and defer the work to
add additional levels of hierarchy. The latter work should be presented
to the Open Shortest Path First IGP Working Group (OSPF).
Sue Thompson presented her proposal for DNS changes to support SIPP. The
group concluded that this was the correct approach for SIPP DNS records.
Jim Bound presented his thoughts on the changes required to the Dynamic
Host Configuration Protocol. There was an extended discussion which
resulted in general agreement that auto configuration was a key part of
any IPng.
Paul Francis presented a proposal for provider based address assignment.
After an interesting discussion, the group agreed to proceed with this
approach.
TCP/UDP Over CLNP-Addressed Networks Working Group (TUBA)
Dave Marlow reported that the CLNP Multicast work has made progress in
ISO. Changes exist in addressing, CLNP, ES-IS and the network service
definition. Group addressing is a full standard, other changes are in
ballot at this time.
Ross Callon discussed the revised NSAP Addressing Guidelines document
and took an action item to make the document somewhat less
``backbone-centric.''
CLNP mobility was discussed. Mark Knopper briefly described CDPD, a
specification for cellular mobile data service from a consortium of
cellular carriers. It uses CLNP as the primary protocol, and provides
IP service using IP-over-CLNP encapsulation. The mobility protocol is
similar to ongoing work in the IP Routing for Wireless/Mobile Hosts
Working Group (MOBILEIP). The group discussed whether or not it should
be proactive, or wait for the MOBILEIP Working Group to settle. Yakov
Rekhter and Dave Piscitello agreed to recast the mobile IP document in
terms of CLNP and publish it as an Internet-Draft.
Yakov Rekhter described his work on a method for transparently adding
options to CLNP. It codes which options are required to be processed by
routers and/or hosts, even when the option is otherwise unrecognized.
He also described work on strong versus weak QoS forwarding.
Dave Katz spoke about the outcome of the Extensions to OSI for use in
the Internet BOF (OSIEXTND) that was held in Amsterdam. The net effect
of IESG policies is that the work will progress within the TUBA Working
Group. Dave Katz then presented an extension to the standard dynamic
NSAP address assignment function, which would allow the end system to
suggest a system ID for itself.
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 needs to
be completed as soon as possible.
TCP/UDP Over CLNP-Addressed Networks Working Group (TUBA) and TP/IX
Working Group (TPIX)
The TUBA Working Group met in joint session with the the TPIX Working
Group. TPIX then continued on to a separate session in the same room.
Robert Ullmann presented his new proposal Common Architecture For The
New Internet (CATNIP). The new proposal is based on RFC 1475. CATNIP is
designed to use header compression by including a flow cache ID or
"handle" in its header. It also uses a NSAP style of addressing. The
joint meeting was held to explore commonality between CATNIP and TUBA
proposals.
The group came up with the following list of milestones:
o Submit the CATNIP proposal as an Internet-Draft
o Rewrite the TPIX Working Group charter to realign it with the new
proposal
o Possibly rename the TPIX Working Group to the CATNIP Working Group