[email protected] writes:
This report has been generated at Fri Jun 4 21:43:44 2004 AEST.
...
Recent Table History
Date Prefixes CIDR Agg
...
03-06-04 137774 96139
04-06-04 137884 95196
ok, so in one day we saw the addition of 110 prefixes, but they were aligned
such that the size of a properly cidr-aggregated table dropped by 943. this
is quite a trick. what does it all mean?
...
Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').
and who's doing it?
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 136767 95172 41595 30.4% All ASes
AS6347 940 160 780 83.0% SAVV SAVVIS Communications
Corporation
yo, savvis! you're putting 940 routes into the global routing table, and
when somebody did "sort -u" on the as-paths, they found that with no change
to your transit policies, you could be sending just 160 instead. "help?"
AS22909 390 33 357 91.5% CMCS Comcast Cable
Communications, Inc.
yo, comcast!
AS22773 378 58 320 84.7% CXAB Cox Communications Inc.
Atlanta
AS27364 360 44 316 87.8% ARMC Armstrong Cable Services
yo, cox and armstrong!
AS11172 351 56 295 84.0% Servicios Alestra S.A de C.V
AS17676 339 50 289 85.3% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS9929 316 33 283 89.6% CNCNET-CN China Netcom Corp.
AS6478 305 48 257 84.3% ATTW AT&T WorldNet Services
AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS14654 230 5 225 97.8% WAYPOR-3 Wayport
AS6327 208 28 180 86.5% SHAWC-2 Shaw Communications
Inc.
yo! yo! yo! (i've only listed those who could reduce their impact on the
global routing table by 80% or more... as you all saw, the list *was* longer.)
there are any number of unemployed bgp experts haunting this mailing list
looking for post-dotbomb work. many of them would accept work as short term
consultants to help you folks get down under the 80% level. just ask!