This is an auto-generated mail on Fri Feb 5 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 05Feb99 0) General Status Table History ------------- Date Prefixes 290199 55694 300199 55734 310199 55712 010299 55847 020299 55793 030299 55899 040299 55881 050299 55641 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: 4500 Number of ASes announcing only one prefix: 2232 (1187 cidr, 1045 classful) Largest number of cidr routes: 353 announced by AS701 Largest number of classful routes: 881 announced by AS701  1) Gains by aggregating at the origin AS level --- 05Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 386 140 246 63.7% BCnet Backbone AS2493 315 169 146 46.3% iSTAR Internet, Inc. AS174 656 541 115 17.5% Performance Systems International AS11305 115 13 102 88.7% UNKNOWN AS3749 158 66 92 58.2% TECNET AS1267 111 30 81 73.0% IUNET-AS AS4755 152 72 80 52.6% Videsh Sanchar Nigam Ltd. India AS4293 211 140 71 33.6% IMCI AS7046 273 207 66 24.2% UUNET-CUSTOMER AS4200 161 99 62 38.5% AGIS (Apex Global Information Ser AS4740 389 328 61 15.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS1221 405 345 60 14.8% AARNET-AS AS701 881 825 56 6.4% Alternet AS1239 529 474 55 10.4% SprintLink Backbone AS7657 142 90 52 36.6% The Internet Group Limited AS72 89 37 52 58.4% Schlumberger Information Network AS7545 109 58 51 46.8% TPG Internet Pty Ltd AS10928 100 50 50 50.0% UNKNOWN AS7496 77 28 49 63.6% Power Up AS577 221 172 49 22.2% Bell Canada Backbone AS719 452 407 45 10.0% LANLINK autonomous system AS3221 84 42 42 50.0% EENet Autonomous System AS852 173 135 38 22.0% AGT Advance Communication AS803 72 36 36 50.0% SaskNet Backbone AS6897 64 28 36 56.2% Global-One Spain AS7745 39 4 35 89.7% BIGSKY-AS AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS6332 98 64 34 34.7% TELNOR AS2764 334 301 33 9.9% connect.com.au pty ltd AS4307 32 1 31 96.9% SVINET-1 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