This is an auto-generated mail on Fri Jul 13 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to cidr-report@cisco.com. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report.  ------------------------------------------------------------------------------ CIDR REPORT for 13Jul01 0) General Status Table History ------------- Date Prefixes 060701 101036 070701 100965 080701 100869 090701 100962 100701 100995 110701 101196 120701 101105 130701 100848 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 11205 Number of ASes announcing only one prefix: 6646 (3807 cidr, 2839 classful) Largest number of cidr routes: 863 announced by AS701 Largest number of classful routes: 1429 announced by AS701  1) Gains by aggregating at the origin AS level --- 13Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1335 997 338 25.3% Telstra Pty Ltd AS701 1429 1212 217 15.2% UUNET Technologies, Inc. AS4293 395 281 114 28.9% Cable & Wireless USA AS6595 161 57 104 64.6% DoD Education Activity Networ AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 232 137 95 40.9% UUNET Technologies, Inc. AS6429 200 108 92 46.0% RdC Internet AS7018 730 639 91 12.5% AT&T AS4755 211 120 91 43.1% VSNL India AS2568 146 55 91 62.3% CTS Network Services AS4151 160 78 82 51.2% USDA AS8013 296 216 80 27.0% PSINet Ltd. Canada AS577 246 173 73 29.7% Bell Canada AS724 237 165 72 30.4% DLA Systems Automation Center AS7046 311 247 64 20.6% UUNET Technologies, Inc. AS6471 122 59 63 51.6% ENTEL CHILE S.A. AS3464 151 90 61 40.4% Alabama SuperComputer Network AS16473 113 54 59 52.2% Bell South AS16758 63 6 57 90.5% IKON Office Solutions AS1 570 514 56 9.8% BBN Planet AS1239 440 385 55 12.5% Sprint ICM-Inria AS226 144 91 53 36.8% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 202 151 51 25.2% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 215 165 50 23.3% Telus Advanced Communications AS9842 54 5 49 90.7% Lotte Data Communication Comp AS2149 317 268 49 15.5% Performance Systems, Inc. AS5106 81 33 48 59.3% Ameritech Advanced Data Servi AS4323 231 183 48 20.8% Time Warner Communications, I For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html  2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report  3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report