This is an auto-generated mail on Fri Mar 26 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 26Mar99 0) General Status Table History ------------- Date Prefixes 190399 57539 200399 57531 210399 57555 220399 57592 230399 57780 240399 57729 250399 57967 260399 58170 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 123.217.230.0/24 from AS174 AS Summary ---------- Number of ASes in routing system: 4735 Number of ASes announcing only one prefix: 2356 (1262 cidr, 1094 classful) Largest number of cidr routes: 389 announced by AS701 Largest number of classful routes: 834 announced by AS701  1) Gains by aggregating at the origin AS level --- 26Mar99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 355 144 211 59.4% BCnet Backbone AS11305 184 10 174 94.6% UNKNOWN AS174 641 525 116 18.1% Performance Systems International AS2493 253 144 109 43.1% iSTAR Internet, Inc. AS226 205 98 107 52.2% USC/Information Sciences Institut AS4755 163 77 86 52.8% Videsh Sanchar Nigam Ltd. India AS3749 140 63 77 55.0% TECNET AS1740 332 255 77 23.2% CERFnet AS4293 214 141 73 34.1% IMCI AS1267 94 24 70 74.5% IUNET-AS AS4200 166 98 68 41.0% AGIS (Apex Global Information Ser AS7545 109 45 64 58.7% TPG Internet Pty Ltd AS7046 272 208 64 23.5% UUNET-CUSTOMER AS4740 394 330 64 16.2% Ozemail Pty Ltd (ASN-OZEMAIL) AS1239 530 468 62 11.7% SprintLink Backbone AS1221 428 366 62 14.5% AARNET-AS AS7496 94 33 61 64.9% Power Up AS10928 108 50 58 53.7% UNKNOWN AS72 91 39 52 57.1% Schlumberger Information Network AS577 223 172 51 22.9% Bell Canada Backbone AS3493 232 181 51 22.0% INTERLINK AS7657 164 114 50 30.5% The Internet Group Limited AS719 461 412 49 10.6% LANLINK autonomous system AS5674 80 36 44 55.0% PBI-NET-BLK AS852 175 136 39 22.3% AGT Advance Communication AS803 72 36 36 50.0% SaskNet Backbone AS1 509 473 36 7.1% BBNPLANET AS7745 39 4 35 89.7% BIGSKY-AS AS7122 111 78 33 29.7% MTS ADVANCED Network Policy AS262 36 3 33 91.7% JVNC-II-AS 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