This is an auto-generated mail on Fri Feb 22 23:00:00 PST 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 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 22Feb02 0) General Status Table History ------------- Date Prefixes 150202 105693 160202 105736 170202 105803 180202 105879 190202 105989 200202 106186 210202 105821 220202 106236 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 96.0.0.0/20 from AS3549 AS Summary ---------- Number of ASes in routing system: 12451 Number of ASes announcing only one prefix: 7566 (4299 cidr, 3267 classful) Largest number of cidr routes: 728 announced by AS701 Largest number of classful routes: 1369 announced by AS701  1) Gains by aggregating at the origin AS level --- 22Feb02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1150 886 264 23.0% Telstra Pty Ltd AS701 1369 1125 244 17.8% UUNET Technologies, Inc. AS17557 224 96 128 57.1% Pakistan Telecom AS7018 836 712 124 14.8% AT&T AS577 320 197 123 38.4% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS4151 254 149 105 41.3% USDA AS705 309 205 104 33.7% UUNET Technologies, Inc. AS852 425 324 101 23.8% Telus Advanced Communications AS6595 150 55 95 63.3% DoD Education Activity Network As AS7046 324 239 85 26.2% UUNET Technologies, Inc. AS19632 94 9 85 90.4% Metropolis Intercom S.A. AS2048 186 105 81 43.5% State of Louisiana AS12302 110 31 79 71.8% MobiFon S.A. AS1239 482 405 77 16.0% Sprint AS4323 432 356 76 17.6% Time Warner Communications, Inc. AS4755 221 147 74 33.5% Videsh Sanchar Nigam Ltd. Autonom AS3908 339 271 68 20.1% Supernet, Inc. AS3464 157 97 60 38.2% Alabama SuperComputer Network AS724 215 156 59 27.4% DLA Systems Automation Center AS7303 106 48 58 54.7% Telecom Argentina Stet-France Tel AS16758 63 6 57 90.5% IKON Office Solutions AS226 145 89 56 38.6% Los Nettos AS19834 63 8 55 87.3% NetForce, Inc. AS10620 77 22 55 71.4% TVCABLE BOGOTA AS9051 75 22 53 70.7% INCONET Autonomous System AS702 621 568 53 8.5% UUNET Technologies, Inc. AS703 271 219 52 19.2% UUNET Technologies, Inc. AS2149 305 253 52 17.0% Performance Systems, Inc. AS209 300 248 52 17.3% Qwest Total 53958 42075 11883 22.0% 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