This is an auto-generated mail on Fri Mar 19 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 19Mar99 0) General Status Table History ------------- Date Prefixes 120399 56938 130399 57039 140399 56857 150399 56894 160399 57203 170399 57348 180399 57351 190399 57539 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: 4691 Number of ASes announcing only one prefix: 2322 (1249 cidr, 1073 classful) Largest number of cidr routes: 383 announced by AS701 Largest number of classful routes: 851 announced by AS701  1) Gains by aggregating at the origin AS level --- 19Mar99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 356 145 211 59.3% BCnet Backbone AS2493 265 148 117 44.2% iSTAR Internet, Inc. AS174 641 528 113 17.6% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS226 204 99 105 51.5% USC/Information Sciences Institut AS4755 159 82 77 48.4% Videsh Sanchar Nigam Ltd. India AS3749 138 62 76 55.1% TECNET AS4293 209 138 71 34.0% IMCI AS1267 94 24 70 74.5% IUNET-AS AS4200 165 97 68 41.2% AGIS (Apex Global Information Ser AS7046 273 208 65 23.8% UUNET-CUSTOMER AS7545 110 46 64 58.2% TPG Internet Pty Ltd AS7496 96 34 62 64.6% Power Up AS1221 430 368 62 14.4% AARNET-AS AS1239 523 466 57 10.9% SprintLink Backbone AS4740 364 311 53 14.6% Ozemail Pty Ltd (ASN-OZEMAIL) AS7657 159 107 52 32.7% The Internet Group Limited AS72 91 39 52 57.1% Schlumberger Information Network AS3493 229 178 51 22.3% INTERLINK AS577 223 173 50 22.4% Bell Canada Backbone AS10928 100 51 49 49.0% UNKNOWN AS719 457 409 48 10.5% LANLINK autonomous system AS5674 80 36 44 55.0% PBI-NET-BLK AS852 174 135 39 22.4% AGT Advance Communication AS803 73 37 36 49.3% SaskNet Backbone AS7745 39 4 35 89.7% BIGSKY-AS AS7122 111 78 33 29.7% MTS ADVANCED Network Policy AS6332 92 59 33 35.9% TELNOR AS1 506 473 33 6.5% BBNPLANET AS1785 248 216 32 12.9% NYSERNet Backbone 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