This is an auto-generated mail on Fri Aug 2 23:00:00 PDT 2002 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 amount 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 <cidr-report@cisco.com>.  ------------------------------------------------------------------------------ CIDR REPORT for 02Aug02 0) General Status Table History ------------- Date Prefixes 260702 112031 270702 112241 280702 112472 290702 112259 300702 112104 310702 112424 010802 112379 020802 112557 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: 13363 Number of ASes announcing only one prefix: 8134 (4583 cidr, 3551 classful) Largest number of cidr routes: 717 announced by AS3908 Largest number of classful routes: 1212 announced by AS701  1) Gains by aggregating at the origin AS level --- 02Aug02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1085 835 250 23.0% Telstra Pty Ltd AS701 1212 971 241 19.9% UUNET Technologies, Inc. AS17557 289 96 193 66.8% Pakistan Telecom AS6595 230 58 172 74.8% DoD Education Activity Network As AS852 540 403 137 25.4% Telus Advanced Communications AS7018 809 682 127 15.7% AT&T AS16473 195 77 118 60.5% Bell South AS1239 516 419 97 18.8% Sprint AS4151 237 142 95 40.1% USDA AS19632 99 5 94 94.9% Metropolis Intercom S.A. AS12302 120 27 93 77.5% MobiFon S.A. AS7303 163 71 92 56.4% Telecom Argentina Stet-France Tel AS16814 105 20 85 81.0% NSS, S.A. AS226 170 87 83 48.8% Los Nettos AS2048 178 103 75 42.1% State of Louisiana AS7046 294 220 74 25.2% UUNET Technologies, Inc. AS577 266 192 74 27.8% Bell Advanced Communications Inc. AS4755 204 131 73 35.8% Videsh Sanchar Nigam Ltd. Autonom AS4323 410 339 71 17.3% Time Warner Communications, Inc. AS2149 327 257 70 21.4% Performance Systems, Inc. AS724 219 157 62 28.3% DLA Systems Automation Center AS4293 246 185 61 24.8% Cable & Wireless USA AS3464 163 103 60 36.8% Alabama SuperComputer Network AS19834 64 4 60 93.8% NetForce, Inc. AS10620 85 25 60 70.6% TVCABLE BOGOTA AS1 442 384 58 13.1% GENUITY AS5515 243 186 57 23.5% Sonera Finland Autonomous System AS209 312 255 57 18.3% Qwest AS16758 63 6 57 90.5% IKON Office Solutions AS9498 85 29 56 65.9% BHARTI BT INTERNET LTD. Total 55365 42608 12757 23.0% 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