nanog mailing list archives

Re: too many routes


From: "Kent W. England" <kwe () geo net>
Date: Thu, 11 Sep 1997 17:29:40 -0700

At 08:33 PM 9/10/97 -0400, Sean M. Doran wrote:

... I decided to issue a warning that once the /8 that the
InterNIC was using had filled up (and after some
discussion, once RIPE and APNIC proceeded to allocate from
new /8s), I would begin filtering all new unicast
addresses to ignore Sprintward announcements of any prefix
longer than 18 bits.  Moreover, I also announced that I
would filter out any subnets of historically classful As
and Bs.

But you didn't actually do it then.

The warning was several months old when people started
noticing that they couldn't reach things behind
Sprintlink, and alot of time was spent explaining to
people that this shouldn't have surprised them at all.


And the reason they started noticing it later was because 
only then did you actually implement the filters, without 
further notice, instead of much earlier. The surprise was 
due to the fact that you did it without further notice 
and not the fact that you did it.

--Kent



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