This is an auto-generated mail on Fri Nov 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 19Nov99 0) General Status Table History ------------- Date Prefixes 041199 66135 051199 66177 061199 66189 071199 66095 081199 66195 091199 66908 101199 65842 111199 67577 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: 4241 Number of ASes announcing only one prefix: 1433 (0 cidr, 1433 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 1720 announced by AS1890  1) Gains by aggregating at the origin AS level --- 19Nov99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1890 1720 797 923 53.7% UUNET NL Autonomous System AS271 383 141 242 63.2% BCnet Backbone AS7046 389 258 131 33.7% UUNET-CUSTOMER AS2609 126 11 115 91.3% EUnet-TN AS1221 614 506 108 17.6% TELSTRA-AS AS9269 123 30 93 75.6% Hong Kong CTI AS7657 253 162 91 36.0% The Internet Group Limited AS7545 146 60 86 58.9% TPG Internet Pty Ltd AS7496 123 38 85 69.1% Power Up AS174 555 471 84 15.1% Performance Systems International AS4293 220 138 82 37.3% Internal ASN for C&W AS577 263 182 81 30.8% Bell Canada Backbone AS3749 138 63 75 54.3% TECNET AS4200 181 111 70 38.7% AGIS (Apex Global Information Ser AS6944 63 6 57 90.5% RapidSite, Inc. AS4740 347 292 55 15.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS816 239 190 49 20.5% UUNET Canada (ASN-UUNETCA-AS4) AS209 304 257 47 15.5% Qwest Communications AS684 92 46 46 50.0% Manitoba Regional Network Backbon AS9304 55 16 39 70.9% Hutchcity AS4755 107 68 39 36.4% Videsh Sanchar Nigam Ltd. India AS6528 45 7 38 84.4% WORLD-LYNX AS549 206 168 38 18.4% ONet Backbone AS2493 125 87 38 30.4% iSTAR Internet, Inc. AS719 195 159 36 18.5% LANLINK autonomous system AS701 962 926 36 3.7% Alternet AS6629 63 28 35 55.6% NOAA-AS AS1 503 468 35 7.0% GTE Internetworking AS7568 48 14 34 70.8% C.S. Communications Co., Ltd. AS3737 99 66 33 33.3% PenTeleData Inc. (ASN-PTD) 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