This is an auto-generated mail on Fri Jan 29 12:00:00 PST 1999 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. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report.  ------------------------------------------------------------------------------ CIDR REPORT for 29Jan99 0) General Status Table History ------------- Date Prefixes 220199 55393 230199 55423 240199 55417 250199 55453 260199 55539 270199 55623 280199 55634 290199 55694 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: 4470 Number of ASes announcing only one prefix: 2208 (1180 cidr, 1028 classful) Largest number of cidr routes: 350 announced by AS3561 Largest number of classful routes: 1028 announced by AS701  1) Gains by aggregating at the origin AS level --- 29Jan99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 387 140 247 63.8% BCnet Backbone AS701 1028 870 158 15.4% Alternet AS2493 323 174 149 46.1% iSTAR Internet, Inc. AS174 645 533 112 17.4% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS3749 149 67 82 55.0% TECNET AS4755 156 75 81 51.9% Videsh Sanchar Nigam Ltd. India AS1267 111 30 81 73.0% IUNET-AS AS4293 211 140 71 33.6% IMCI AS549 218 152 66 30.3% ONet Backbone AS4200 160 98 62 38.8% AGIS (Apex Global Information Ser AS7046 269 208 61 22.7% UUNET-CUSTOMER AS1221 396 336 60 15.2% AARNET-AS AS4740 378 320 58 15.3% Ozemail Pty Ltd (ASN-OZEMAIL) AS1239 527 473 54 10.2% SprintLink Backbone AS72 89 37 52 58.4% Schlumberger Information Network AS7657 141 90 51 36.2% The Internet Group Limited AS7545 109 58 51 46.8% TPG Internet Pty Ltd AS7496 77 28 49 63.6% Power Up AS577 221 172 49 22.2% Bell Canada Backbone AS10928 99 50 49 49.5% UNKNOWN AS719 452 408 44 9.7% LANLINK autonomous system AS3221 84 42 42 50.0% EENet Autonomous System AS852 173 135 38 22.0% AGT Advance Communication AS3561 723 685 38 5.3% MCI AS803 72 36 36 50.0% SaskNet Backbone AS6897 64 28 36 56.2% Global-One Spain AS7122 110 76 34 30.9% MTS ADVANCED Network Policy AS2764 330 297 33 10.0% connect.com.au pty ltd AS6332 101 70 31 30.7% TELNOR 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