This is an auto-generated mail on Fri Nov 30 23:00:00 PST 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. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 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 <cidr-report@cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 30Nov01 0) General Status Table History ------------- Date Prefixes 231101 104388 241101 104158 251101 103973 261101 104689 271101 104073 281101 104130 291101 103988 301101 104104 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: 12046 Number of ASes announcing only one prefix: 7241 (4108 cidr, 3133 classful) Largest number of cidr routes: 797 announced by AS701 Largest number of classful routes: 1396 announced by AS701 1) Gains by aggregating at the origin AS level --- 30Nov01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1197 921 276 23.1% Telstra Pty Ltd AS4151 319 179 140 43.9% USDA AS16473 198 77 121 61.1% Bell South AS4755 226 142 84 37.2% Videsh Sanchar Nigam Ltd. Autonom AS2048 184 105 79 42.9% State of Louisiana AS1239 483 405 78 16.1% Sprint AS19632 87 11 76 87.4% Metropolis Intercom S.A. AS17557 154 83 71 46.1% Pakistan Telecom AS12302 104 36 68 65.4% MobiFon S.A. AS4200 127 62 65 51.2% Apex Global Information Services, AS2149 351 287 64 18.2% Performance Systems, Inc. AS3464 156 95 61 39.1% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS4323 370 314 56 15.1% Time Warner Communications, Inc. AS3908 303 251 52 17.2% Supernet, Inc. AS17561 115 64 51 44.3% Internet service provision to Wes AS1 513 462 51 9.9% BBN Planet AS209 292 242 50 17.1% Qwest AS376 122 73 49 40.2% Reseau Interordinateurs Scientiqu AS16814 65 18 47 72.3% NSS, S.A. AS11139 92 46 46 50.0% Cable & Wireless Dominica AS15290 240 196 44 18.3% AT&T Canada IES AS10620 64 21 43 67.2% TVCABLE BOGOTA AS10292 72 29 43 59.7% TELECOMMUNICATIONS OF JAMAICA AS5416 51 9 42 82.4% BATELCO-BH AS1267 68 26 42 61.8% Infostrada S.p.A. AS19834 51 11 40 78.4% NetForce, Inc. AS2007 167 129 38 22.8% INFONET AS12235 47 9 38 80.9% Cove Software Systems Inc AS2652 103 67 36 35.0% Government Telecommunications and 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