Re: Fwd: Suggestion: charging for IPv4 space

Tom,

On 10/22/08 5:21 AM, "[email protected]" <[email protected]> wrote:
> Do you really think that the the planning horizon was that much longer
> ten years ago, when CIDR was implemented?

Apples vs. V8 engine comparison.

CIDR deployment did not, in general, affect end users, did not require
application modifications, API modifications, or OS modifications, and
required relatively minor changes in network management, routers, and other
network elements.  I figure the biggest hurdle in CIDR deployment was the
need to go to BGP-4 in the core and this was done as a software upgrade (IOS
image of the day) or while swapping out routers typically (once the initial
crises had passed) as part of the normal upgrade cycle.

Or at least, that's how I remember it...

> I certainly don't recall end users clamoring for CIDR in the way
> that some have suggested is necessary to justify implementing IPv6...

As you're aware, IPv6 is not backwards compatible with IPv4 and the way IPv6
has been implemented essentially has required end users to care <rant
deleted>.  Which they, of course, don't.

> I'm not suggesting that the transition will be easy, only that there
> is a real precedent for imagining that players in this industry are
> capable of taking a slightly longer-term approach to calculating the
> benefits of technological advances, even ones with nontrivial upfront
> costs.

There may be a precedent, but CIDR deployment certainly isn't it.

> How confident are you that these changes will cause IPv6 and IPv4 to
> be mutually substitutable (enough) before the lack of IPv4 represents
> an absolute barrier to entry for aspiring new network enterprises and
> routing service providers?

This "barrier to entry" argument seems bogus to me.  If I wanted to start a
farm a couple of centuries back, I could go out into the wilderness, kill
off some flora and fauna, stake a claim, and start farming.  Today, I have
to buy or lease land from existing land owners.  Does this mean that no new
farms are established?

Regards,
-drc

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