This is an auto-generated mail on Fri Feb 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 26Feb99 0) General Status Table History ------------- Date Prefixes 190299 56528 200299 56373 210299 56116 220299 56354 230299 56456 240299 56506 250299 56299 260299 56598 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: 4611 Number of ASes announcing only one prefix: 2304 (1234 cidr, 1070 classful) Largest number of cidr routes: 357 announced by AS701 Largest number of classful routes: 867 announced by AS701  1) Gains by aggregating at the origin AS level --- 26Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 355 144 211 59.4% BCnet Backbone AS2493 270 153 117 43.3% iSTAR Internet, Inc. AS174 641 529 112 17.5% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS4755 158 78 80 50.6% Videsh Sanchar Nigam Ltd. India AS1267 107 29 78 72.9% IUNET-AS AS3749 140 63 77 55.0% TECNET AS4293 218 144 74 33.9% IMCI AS7545 112 48 64 57.1% TPG Internet Pty Ltd AS4200 165 101 64 38.8% AGIS (Apex Global Information Ser AS1221 423 360 63 14.9% AARNET-AS AS4740 385 324 61 15.8% Ozemail Pty Ltd (ASN-OZEMAIL) AS7046 258 200 58 22.5% UUNET-CUSTOMER AS1239 529 471 58 11.0% SprintLink Backbone AS72 89 37 52 58.4% Schlumberger Information Network AS10928 102 50 52 51.0% UNKNOWN AS577 222 172 50 22.5% Bell Canada Backbone AS7657 142 93 49 34.5% The Internet Group Limited AS7496 78 29 49 62.8% Power Up AS719 460 414 46 10.0% LANLINK autonomous system AS803 78 34 44 56.4% SaskNet Backbone AS852 177 137 40 22.6% AGT Advance Communication AS701 867 828 39 4.5% Alternet AS5674 64 27 37 57.8% PBI-NET-BLK AS7745 39 4 35 89.7% BIGSKY-AS AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS1785 249 217 32 12.9% NYSERNet Backbone AS1 505 473 32 6.3% BBNPLANET AS6332 94 63 31 33.0% TELNOR AS549 163 132 31 19.0% ONet 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