Shared TLD Daily Digest, Aug 05, 1996

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Date: 4 Aug 1996 02:53:25 -0700
From: Simon Higgs 
Subject: Re: Who is archiving the shared-tld list?

At 1:19 AM +0100 8/3/96, Neil Readwin wrote:

>Is anyone archiving the list? I cannot find a pointer to an archive
>on the Web pages. Neil.




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Date: 4 Aug 1996 06:32:42 -0700
From: Kent Crispin 
Subject: Re: WG charter timeline

Michael Dillon allegedly said:
>
> On Fri, 2 Aug 1996, Kent Crispin wrote:
>
> > Mar 1997
> > 	Submit Shared Top Level Domain Draft
>
> This isn't really complex stuff here. I think this should be Oct 1996.
>
> > Mar 1997
> > 	Establishment of the .SHARED TLD for purposes of testing
> > 	STLD proposals.
>
> Oct 1996
>
> > Jun 1997
> > 	STLD RFC
>
> Apr 1997

I actually think the stuff is fairly complex.
Chris's suggestion for the first two milestones splits the difference
between Oct 96 and Mar 97 at Jan 97, so how about if I use his date
and Apr 97 for the RFC?

I also added a sentence about motivation.  Please, more comments!

stld-charter:

DRAFT

Shared Top Level Domains Working Group (STLDWG) Charter

Chair(s)

	o TBD
	o (Someone from IANA?)

Internet Area Director(s)

	o TBD

Mailing List Information

	o General Discussion: shared-tld@higgs.net
	o To Subscribe: shared-tld-request@higgs.net
	o Archive:
	  http://www.higgs.net/mail/lists/shared-tld/shared-tld-digest.html

Description of Working Group

The Shared Top Level Domains Working Group is concerned with the
technical and logistic requirements of creating shared domain name
registration databases, and the administration of delegated top level
domains by multiple domain name registries.  The motivation for this
concern is to minimize centralized management of all components of
the name space.

The primary products of this WG are three:  First the STLD Draft, and
second, a test implemtation of the ideas using the .SHARED TLD as a
test, and three, a revised STLD draft incorporating the lessons from
the experiment, which should become an RFC

The areas of concern include

	o fostering an appropriate blend of competition and
	  cooperation between cohort registries

	o the relationship between STLD registries and name servers

	o technical issues regarding management of the various
	  distribute databases

	o the adminstrative procedures involved in running
	  a registry serving a Shared TLD

	o etc... [help!!!]

Goals and Milestones

Jan 1997
	Submit Shared Top Level Domain Draft

Jan 1997
	Establishment of the .SHARED TLD for purposes of testing
	STLD proposals.

Apr 1997
	STLD RFC


- --
Kent Crispin				
kent@songbird.com			"No reason to get excited",
kc@llnl.gov				the thief he kindly spoke...


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Date: 4 Aug 1996 07:23:49 -0700
From: Kent Crispin 
Subject: Re: Lightweight vs. heavyweight registries

John R Levine allegedly said:
>
> >This is the good part about competition -- if Bogo-net was incompetent,
> >then presumabley they won't remain in the business for long.  :-)
>
> Ah, but what business?

The registry business.

> I'm expecting that the many if not most of these
> outfits will be ISPs who are doing registry as a sideline to support their
> customers, so they don't care all that much about the registry business.
[snip]

I don't think the concern you raise is really much of an issue for the
following two reasons: 1) If they are doing registry service for their
customers, and they do a bad job, presumably customers will go
elsewhere.  It is certainly in their best interest to do a good job as
a registry. 2) updating the nameserver files is essentially trivial,
and would be almost completely automated

> It's also easy to imagine a situation where one of the registries feels
> aggrieved about something and holds the whole process hostage when it's his
> turn to do the domain merge.

Any of the other sites could do it trivially.  He would only hurt
himself, because the names he registered wouldn't be included in the
update.  This is actually one of the strong points of decentralizing
- -- *any* of the registries can do the whole job.

> A jointly owned Swiss non-profit, like the
> ones they've been talking about in newdom, with no axes of its own to grind
> sure would be nice.

It's the "no axes of its own" that is impossible to enforce, IMHO.

[snip]
> >In general, I would like to leave those
> >relationships as unspecified as possible, to leave as much
> >organizational freedom as possible.
>
> No argument there, except that I'm pushing everything down a level.  I'd like
> to define well specified protocols about how the first level customers talk
> to a centralized light-weight registry for a shared TLD.  Below that,
> anything goes.
>
> >I guess another wrinkle is that a registry could serve several TLDs.
>
> I've been presuming that for the most part all customer registries will sign
> up to serve every TLD they can, which is why it'd be nice to have a common
> way for the customers to talk to the light-weight registries.
>

I hesitate to get into a discussion of light-weight registries,
because you seem rather attached to the idea :-), but since you
insist:

I am uncomfortable with that approach because we are still left with a
central point of failure, both human and technical, and we are still
left with a potential monopoly point.  Thus, light weight registries
don't really solve the problem I would like to solve.

We could talk about having the IANA require that LWRs be non-profit
organizations, or put various other constraints, but those kind of
restrictions I think are in the long run unworkable -- there are just
too many different legal systems for the IANA to keep track of -- I
have no idea what the legal definition of a non-profit corporation
would be in Poland, for example.  Even in the US laws vary on a
state-by-state basis.

Given that I don't say any realistic way for IANA to enforce
organizational characteristics on a LWR, a LWR (or an affiliate) could
then go into business as a "Full Service Registry", and compete
unfairly against other registries servicing the same TLD.

All my objections might be moot, if there were some significant
technical difficulty that LWRs would allow us to avoid, but I don't
really think there is.  That is, I don't think the technical problems
of doing Fully Distributed Registries are that great.

So you can advocate Light Weight Registries, and I will advocate Fully
Distributed Registries (Heavy Weight Registries seems so prejudicial
:-)).  However, I think it is important in the interests of progress
that we not get to attached to these ideas, especially at this early
stage.  I would like to think that there are brilliant ideas lurking
in the minds of the other people on this list that will make both of
us think "why didn't I think of that?"

- --
Kent Crispin				
kent@songbird.com			"No reason to get excited",
kc@llnl.gov				the thief he kindly spoke...


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Date: 4 Aug 1996 12:01:43 -0700
From: johnl@iecc.com (John R Levine)
Subject: Re: Lightweight vs. heavyweight registries

>So you can advocate Light Weight Registries, and I will advocate Fully
>Distributed Registries (Heavy Weight Registries seems so prejudicial
>:-)).  However, I think it is important in the interests of progress
>that we not get to attached to these ideas, especially at this early
>stage.  I would like to think that there are brilliant ideas lurking
>in the minds of the other people on this list that will make both of
>us think "why didn't I think of that?"

I guess we have different experiences dealing with ISPs.  (My experience
is too often described by metaphors regarding tying ones' own shoes.)

Your concerns that a lightweight registry could be a single point of failure
or a chokepoint are certainly reasonable, but I think there are
non-technical ways to address them, primarily by making the centralized
registry owned by as many of the next-level registries as possible.

But I'm worried that in a fully distributed model, instead of a single point
of failure, we'll have hundreds points of failure, each of which can
temporarily screw up a shared domain.  The problem is that running a shared
domain requires two separate tasks: maintaining each individual registry,
and merging the individual registries into the combined DNS database.  Each
registry needs to be good at the first, but there's a "tragedy of the
commons" issue with the second.

It seems likely to me that if shared domains are at all successful, there
will be hundreds of registries sharing any particular domain.  If there
were, say, 365 registries and a domain was updated daily, this would mean
that each registry would only do the merge once a year.  This means that
each night's update will be done by someone who at best did it once a year
ago and more likely by someone who's never done it at all.  Even if the
merge process is straightforward, it is unlikely to be entirely mechanical
and will need some human expertise to coddle it along.  But for each
registry, the worst they can do is to screw it up for one day each year, so
it's not worth a lot of effort to get right.

If you have 365 sets of data totalling 100,000 records, how likely is it
that there won't be any inconsistencies or collissions at all?  Assume that
all data is 99.9% error free -- that's 100 errors.  Without some sort of
centralized scheme to enforce consistency and to resolve conflicts (e.g. when
two registries each believe they registered FOO.UGH. first), I don't see
much chance of ever getting a usable merged database.

If someone has an idea for a fully distributed registry that addresses the
consistency and update problems, I'd be happy to embrace it.  But I haven't
seen one yet.  Geniuses, do your stuff.

- --
John R. Levine, IECC, POB 640 Trumansburg NY 14886 +1 607 387 6869
johnl@iecc.com "Space aliens are stealing American jobs." - Stanford econ prof


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Date: 4 Aug 1996 15:06:46 -0700
From: Simon Higgs 
Subject: Re: WG charter timeline

At 6:31 AM -0700 8/4/96, Kent Crispin wrote:

>DRAFT
>
>Shared Top Level Domains Working Group (STLDWG) Charter
>

This can now be found at:



I'll try and keep it up-to-date. ;)




_____S_i_m_o_n___H_i_g_g_s_________________H_i_g_g_s___A_m_e_r_i_c_a_____
... "I'm fine - it's the others" ............. President/CEO ............
_____e-mail:  ___________  ______
..  ..