This is an auto-generated mail on Fri Dec 14 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 14Dec01 0) General Status Table History ------------- Date Prefixes 071201 104426 081201 104464 091201 104331 101201 104395 111201 104269 121201 104989 131201 105206 141201 104473 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: 12150 Number of ASes announcing only one prefix: 7358 (4177 cidr, 3181 classful) Largest number of cidr routes: 785 announced by AS701 Largest number of classful routes: 1373 announced by AS701  1) Gains by aggregating at the origin AS level --- 14Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1164 895 269 23.1% Telstra Pty Ltd AS701 1373 1143 230 16.8% UUNET Technologies, Inc. AS4151 294 160 134 45.6% USDA AS16473 203 77 126 62.1% Bell South AS577 317 193 124 39.1% Bell Advanced Communications Inc. AS7018 801 693 108 13.5% AT&T AS705 280 178 102 36.4% UUNET Technologies, Inc. AS6595 156 57 99 63.5% DoD Education Activity Network As AS852 395 300 95 24.1% Telus Advanced Communications AS8010 123 38 85 69.1% PublicNet Communications, Inc. AS4755 226 141 85 37.6% Videsh Sanchar Nigam Ltd. Autonom AS17557 164 79 85 51.8% Pakistan Telecom AS7046 305 224 81 26.6% UUNET Technologies, Inc. AS19632 92 11 81 88.0% Metropolis Intercom S.A. AS1239 485 405 80 16.5% Sprint AS2048 183 104 79 43.2% State of Louisiana AS12302 109 33 76 69.7% MobiFon S.A. AS6471 134 68 66 49.3% ENTEL CHILE S.A. AS3464 160 98 62 38.8% Alabama SuperComputer Network AS724 211 150 61 28.9% DLA Systems Automation Center AS703 279 218 61 21.9% UUNET Technologies, Inc. AS2149 337 278 59 17.5% Performance Systems, Inc. AS4200 112 55 57 50.9% Apex Global Information Services, AS16758 63 6 57 90.5% IKON Office Solutions AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS1 520 465 55 10.6% BBN Planet AS3908 311 258 53 17.0% Supernet, Inc. AS209 298 247 51 17.1% Qwest AS855 145 95 50 34.5% Canadian Research Network AS376 124 74 50 40.3% Reseau Interordinateurs Scientiqu 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