[4380] in North American Network Operators' Group
Re: Top-50 Report
daemon@ATHENA.MIT.EDU (Brett D. Watson)
Sat Sep 14 14:13:33 1996
To: nanog@merit.edu
From: "Brett D. Watson" <bwatson@genuity.net>
Reply-To: bwatson@genuity.net
Date: Sat, 14 Sep 1996 11:11:54 -0700
>
> Paul A Vixie <paul@vix.com> writes:
> * > Remember, this just looks at the classful routes and tries to cidrize
> * > them at the origin AS level. It assumes no holes either so it's quite
> * > possible to get a lot more back. Yes there are 31K classful routes. That'
> * s
> * > either a lot of legacy or not a lot of aggregation.
> * > --Tony
> *
> * Given that the routing table stood at 28000 when CIDRD was killed off, I'd
> * say that there have either been some recent classful allocations, or a lot
> * of ancient networks suddenly getting advertised.
>
> Or a lot less care and letting classful size announcments leak out and
> not aggregating to the allocation folks were given. To highlight I pick
> the last 50 classful entries I see in the 193, 198 and 206 range just
> to give a random sample and to illustrate.
this is what i was getting at in my note a week ago or so. it
appears that many more networks are being announced by 2+ as's. so
i'm assuming we're sort of doomed to poor aggregation as more and
more people dual-home to providers.
and i still see some pretty poor aggregation (like /22's and /24's)
in some recent allocations.
-brett
