Short version: I found six attempts at making a taxonomy of
RRG proposed architectures:
March 2008 Lixia and Scott's I-D
April 2008 My 25 questions
April 2008 Joel Halpern's I-D
July 2008 Christian Vogt's PDF document
Early 2009 Based on Bill Herrin's Strategies
Early 2010 My CES/CEE distinction messages
Hi Lixia,
In "Re: [rrg] [IRSG] IRSG Review: draft-irtf-rrg-recommendation-
12.txt" you wrote:
>> I figure people will read it. The questions we are tackling will
>> come up in the future, even if nothing is done with LISP, Ivip,
>> IRON, ILNP or whatever for five or ten years.
>
> Based on what I have seen in the past, I agree here.
OK.
> 1/ The terms CES versus CEE came from a HOTNET paper, "Towards A
> Future Internet Architecture: Arguments for Separating Edges from
> Transit Core" ACM Workshop on Hot Topics in Networks (HotNets),
> October 2008
> http://conferences.sigcomm.org/hotnets/2008/papers/18.pdf
>
> I do not think "DNS-based" or not is part of the CEE concept.
I agree.
> 2/ I recall that long time ago I signed up to help a taxonomy
> draft. Scott Brim and I even produced a couple versions (predated
> the above mentioned paper). Although I've stepped down from RRG, I
> feel an obligation to help finish this piece.
>
> Let me first dig out the old draft by Scott and me. Then look over
> the mailing list discussion (if Robin has pointers at hand, that'd
> be very helpful than going through all email archive:)
>
> I chatted with Scott about this taxonomy draft at Maastricht IETF.
> Scott, wonder if your busy period is over and have some cycles for
> this now.
Scott announced the I-D on 2008-03-29:
http://www.ietf.org/mail-archive/web/rrg/current/msg02006.html
The I-D is version 00 only, from the same date:
http://tools.ietf.org/html/draft-rrg-taxonomy-00
I commented on it on 2008-03-31, you responded and I replied:
http://www.ietf.org/mail-archive/web/rrg/current/msg02015.html
http://www.ietf.org/mail-archive/web/rrg/current/msg02038.html
http://www.ietf.org/mail-archive/web/rrg/current/msg02042.html
There was also an exchange between you and Heiner Hummel a few days
later. As far as I know, there were no further substantial
discussions of this I-D on the list. Hannu Flinck (msg02132.html)
wrote positively of your I-D.
You wrote to the list:
http://www.ietf.org/mail-archive/web/rrg/current/msg02162.html
with primarily a 2-way taxonomy, with a potential 3rd classification
for address rewriting proposals (such as Six-One Router, I guess).
A second taxonomy attempt began on 2008-04-02: I made a set of 25
questions:
http://www.ietf.org/mail-archive/web/rrg/current/msg02033.html
and after some discussion, made a web page which incorporated
suggestions from other people:
http://www.firstpr.com.au/ip/ivip/comp/
Most of the questions refer to distinctions between what we know know
(or at least some people recognise as) Core-Edge Separation
architectures. This has been pretty much superseded, since most of
the proposed architectures considered in this framework are no longer
under development - or have changed considerably.
On 2008-04-28, Joel Halpern wrote to the list:
http://www.ietf.org/mail-archive/web/rrg/current/msg02161.html
about his new I-D, which he updated on 2008-07-12 to version 01:
http://tools.ietf.org/html/draft-halpern-rrg-taxonomy-01
On 2008-07-25, Christian Vogt wrote to the list:
http://www.ietf.org/mail-archive/web/rrg/current/msg02911.html
referring to:
http://users.piuha.net/chvogt/pub/2008/vogt-2008-design-taxonomy.pdf
which no longer exists. I don't recall anything about this, and I
think it was not discussed on the list. I don't think I have a copy.
Another attempt at a taxonomy was in early 2009:
http://www.firstpr.com.au/ip/ivip/rrgarch/
This is based on Bill Herrin's Summary of Routing Architectures
discussed in the RRG:
http://bill.herrin.us/network/rrgarchitectures.html
I attempted to keep my page updated according to suggestions arising
in discussion. Strategy A is basically Core-Edge Separation (CES) and
Strategy B is basically Core-Edge Elimination (CEE).
Bill's approach was mentioned in the initial draft of the RRG
Recommendation: 2009-02-15:
http://tools.ietf.org/html/draft-irtf-rrg-recommendation-00
after another taxonomy based on "mechanism". Versions 01 and 02 to
2009-03-29 were similar. Version 03 (2009-12-26) was a completely
different document.
A more recent taxonomy approach is the two-way distinction between CES
and CEE, from early 2010:
http://www.ietf.org/mail-archive/web/rrg/current/msg06250.html
http://www.ietf.org/mail-archive/web/rrg/current/msg05865.html
This is based on your Hotnets paper. My message of 2010-02-12
http://www.ietf.org/mail-archive/web/rrg/current/msg06009.html
contains an attempt to understand the history of this CES/CEE distinction.
This list is based on searching my RRG mailbox, which starts on
2007-03-31 - for "taxonomy" in the subject line and then in the body.
- Robin
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