This is an auto-generated mail on Fri Jul 23 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 23Jul99 0) General Status Table History ------------- Date Prefixes 160799 61126 170799 61270 180799 60986 190799 61251 200799 61293 210799 61468 220799 61453 230799 61494 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: 5334 Number of ASes announcing only one prefix: 2793 (1543 cidr, 1250 classful) Largest number of cidr routes: 445 announced by AS701 Largest number of classful routes: 847 announced by AS701  1) Gains by aggregating at the origin AS level --- 23Jul99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 348 145 203 58.3% BCnet Backbone AS2609 122 28 94 77.0% EUnet-TN AS577 281 188 93 33.1% Bell Canada Backbone AS174 573 481 92 16.1% Performance Systems International AS3749 152 63 89 58.6% TECNET AS4293 235 149 86 36.6% IMCI AS7046 320 238 82 25.6% UUNET-CUSTOMER AS1221 505 429 76 15.0% TELSTRA-AS AS7545 141 66 75 53.2% TPG Internet Pty Ltd AS7496 108 34 74 68.5% Power Up AS7657 221 150 71 32.1% The Internet Group Limited AS10928 119 49 70 58.8% UNKNOWN AS4200 167 105 62 37.1% AGIS (Apex Global Information Ser AS6944 63 6 57 90.5% RapidSite, Inc. AS4740 307 252 55 17.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS4755 133 79 54 40.6% Videsh Sanchar Nigam Ltd. India AS9269 73 22 51 69.9% Hong Kong CTI AS719 458 407 51 11.1% LANLINK autonomous system AS684 89 44 45 50.6% Manitoba Regional Network Backbon AS803 78 34 44 56.4% SaskNet Backbone AS549 218 174 44 20.2% ONet Backbone AS2493 112 69 43 38.4% iSTAR Internet, Inc. AS3737 106 68 38 35.8% PenTeleData Inc. (ASN-PTD) AS1785 251 214 37 14.7% NYSERNet Backbone AS1 490 455 35 7.1% BBNPLANET AS701 847 813 34 4.0% Alternet 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