This is an auto-generated mail on Fri Nov 23 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 23Nov01 0) General Status Table History ------------- Date Prefixes 161101 105107 171101 104669 181101 104452 191101 104732 201101 104515 211101 104367 221101 104601 231101 104388 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: 7341 Number of ASes announcing only one prefix: 3130 (0 cidr, 3130 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 1416 announced by AS701  1) Gains by aggregating at the origin AS level --- 23Nov01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1202 928 274 22.8% Telstra Pty Ltd AS701 1416 1175 241 17.0% UUNET Technologies, Inc. AS4151 316 179 137 43.4% USDA AS4755 328 197 131 39.9% Videsh Sanchar Nigam Ltd. Autonom AS16473 203 77 126 62.1% Bell South AS577 319 196 123 38.6% Bell Advanced Communications Inc. AS7018 814 695 119 14.6% AT&T AS6595 162 57 105 64.8% DoD Education Activity Network As AS705 277 175 102 36.8% UUNET Technologies, Inc. AS852 390 296 94 24.1% Telus Advanced Communications AS2048 206 116 90 43.7% State of Louisiana AS8010 124 36 88 71.0% PublicNet Communications, Inc. AS4323 396 311 85 21.5% Time Warner Communications, Inc. AS1239 475 399 76 16.0% Sprint AS19632 85 10 75 88.2% Metropolis Intercom S.A. AS1273 327 257 70 21.4% Cable & Wireless ECRC GmbH AS12302 106 38 68 64.2% MobiFon S.A. AS2149 369 302 67 18.2% Performance Systems, Inc. AS6471 133 67 66 49.6% ENTEL CHILE S.A. AS17557 142 76 66 46.5% Pakistan Telecom AS4200 126 61 65 51.6% Apex Global Information Services, AS3464 161 96 65 40.4% Alabama SuperComputer Network AS724 209 150 59 28.2% DLA Systems Automation Center AS7046 294 235 59 20.1% UUNET Technologies, Inc. AS16758 63 6 57 90.5% IKON Office Solutions AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS703 273 219 54 19.8% UUNET Technologies, Inc. AS3908 300 248 52 17.3% Supernet, Inc. AS17561 113 62 51 45.1% Internet service provision to Wes AS855 143 93 50 35.0% Canadian Research Network 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