[308] in North American Network Operators' Group
Re: CIDR FAQ
daemon@ATHENA.MIT.EDU (Paul A Vixie)
Wed Aug 16 15:48:52 1995
To: nanog@merit.edu
In-Reply-To: Your message of "Wed, 16 Aug 95 10:55:32 EDT."
<Pine.LNX.3.91.950816105401.2721B-100000@netrail.net>
Date: Wed, 16 Aug 95 12:34:52 -0700
From: Paul A Vixie <paul@vix.com>
> > class c nets, which are 2/3 the total.
>
> Why can' the NIC reallocat the old class c's and use CIDR?
They are trying. But you can only lead this horse to water -- we can't take
prefixes away, we can only make them harder or more expensive to get routing
for. This is a lengthy process, and its success is the only reason we still
have a 30,000 element core routing table -- endpoint growth never stopped, but
new prefixes are all fairly short, and there has been a nearly corresponding
drop in old (long, expensive) prefixes in recent months. As Randy pointed out,
though, we've probably about squoze all the water out of the old classC sponge.
