This is an auto-generated mail on Fri Jan 18 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 18Jan02 0) General Status Table History ------------- Date Prefixes 040102 104733 050102 104575 060102 105090 070102 105136 150102 104579 160102 104712 170102 104584 180102 104688 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: 12251 Number of ASes announcing only one prefix: 7411 (4204 cidr, 3207 classful) Largest number of cidr routes: 732 announced by AS701 Largest number of classful routes: 1380 announced by AS701  1) Gains by aggregating at the origin AS level --- 18Jan02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1172 901 271 23.1% Telstra Pty Ltd AS701 1380 1147 233 16.9% UUNET Technologies, Inc. AS4151 287 155 132 46.0% USDA AS577 321 197 124 38.6% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS7018 810 695 115 14.2% AT&T AS6595 169 61 108 63.9% DoD Education Activity Network As AS705 288 185 103 35.8% UUNET Technologies, Inc. AS852 401 302 99 24.7% Telus Advanced Communications AS17557 179 83 96 53.6% Pakistan Telecom AS19632 95 13 82 86.3% Metropolis Intercom S.A. AS2048 185 105 80 43.2% State of Louisiana AS1239 469 389 80 17.1% Sprint AS12302 110 31 79 71.8% MobiFon S.A. AS7046 305 227 78 25.6% UUNET Technologies, Inc. AS4755 224 152 72 32.1% Videsh Sanchar Nigam Ltd. Autonom AS703 284 222 62 21.8% UUNET Technologies, Inc. AS3464 160 98 62 38.8% Alabama SuperComputer Network AS724 217 158 59 27.2% DLA Systems Automation Center AS4200 110 53 57 51.8% Apex Global Information Services, AS16758 63 6 57 90.5% IKON Office Solutions AS4323 381 325 56 14.7% Time Warner Communications, Inc. AS226 145 89 56 38.6% Los Nettos AS6471 121 66 55 45.5% ENTEL CHILE S.A. AS3908 316 261 55 17.4% Supernet, Inc. AS19834 63 8 55 87.3% NetForce, Inc. AS7303 104 51 53 51.0% Telecom Argentina Stet-France Tel AS2149 315 262 53 16.8% Performance Systems, Inc. AS13999 66 14 52 78.8% Mega Cable S.A. de C.V. AS1 496 445 51 10.3% BBN Planet Total 53624 41950 11674 21.8% 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