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