This is an auto-generated mail on Fri Jul 30 12:00:00 PDT 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 30Jul99 0) General Status Table History ------------- Date Prefixes 230799 61494 240799 61486 250799 61391 260799 61592 270799 61488 280799 61707 290799 61808 300799 61912 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: 5372 Number of ASes announcing only one prefix: 2813 (1550 cidr, 1263 classful) Largest number of cidr routes: 461 announced by AS701 Largest number of classful routes: 841 announced by AS701  1) Gains by aggregating at the origin AS level --- 30Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 348 147 201 57.8% BCnet Backbone AS2609 121 28 93 76.9% EUnet-TN AS174 578 486 92 15.9% Performance Systems International AS1221 537 445 92 17.1% TELSTRA-AS AS577 280 189 91 32.5% Bell Canada Backbone AS3749 153 63 90 58.8% TECNET AS4293 235 149 86 36.6% IMCI AS7046 322 237 85 26.4% UUNET-CUSTOMER AS4200 182 103 79 43.4% AGIS (Apex Global Information Ser AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS7496 108 34 74 68.5% Power Up AS7657 229 156 73 31.9% The Internet Group Limited AS10928 119 49 70 58.8% UNKNOWN AS9269 76 16 60 78.9% Hong Kong CTI AS4755 138 79 59 42.8% Videsh Sanchar Nigam Ltd. India AS6944 63 6 57 90.5% RapidSite, Inc. AS4740 307 253 54 17.6% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 458 406 52 11.4% LANLINK autonomous system AS2493 159 110 49 30.8% iSTAR Internet, Inc. AS684 91 46 45 49.5% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 215 172 43 20.0% ONet Backbone AS3737 108 67 41 38.0% PenTeleData Inc. (ASN-PTD) AS1785 253 215 38 15.0% NYSERNet Backbone AS209 251 216 35 13.9% Qwest Communications AS1 495 460 35 7.1% BBNPLANET AS10724 42 8 34 81.0% UNKNOWN AS6762 33 2 31 93.9% Telecom Italia international high AS4307 32 1 31 96.9% SVINET-1 AS11515 32 1 31 96.9% UNKNOWN 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