yeah, we(being savvis) are aware. this will all disappear when AS6347 is integrated to AS3561. AS3561 is, for the most part clean, and it will stay that way. AS6347 will drop off the map in the coming months. have patience. ;-) thx, mark Paul Vixie wrote:
cidr-report@potaroo.net 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!