This is an auto-generated mail on Fri Nov 26 12:00:02 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 26Nov99 0) General Status Table History ------------- Date Prefixes 071199 66095 081199 66195 091199 66908 101199 65842 111199 67577 241199 67406 251199 67521 261199 67449 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 219.91.160.0/22 from AS7742 *** Bogus 219.91.164.0/23 from AS7742 AS Summary ---------- Number of ASes in routing system: 6114 Number of ASes announcing only one prefix: 3245 (1783 cidr, 1462 classful) Largest number of cidr routes: 640 announced by AS701 Largest number of classful routes: 979 announced by AS701  1) Gains by aggregating at the origin AS level --- 26Nov99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 383 141 242 63.2% BCnet Backbone AS7046 386 257 129 33.4% UUNET-CUSTOMER AS1221 626 514 112 17.9% TELSTRA-AS AS2609 125 15 110 88.0% EUnet-TN AS9706 112 11 101 90.2% Pusan Metropolitan City Office of AS9269 126 27 99 78.6% Hong Kong CTI AS7657 264 168 96 36.4% The Internet Group Limited AS7545 146 60 86 58.9% TPG Internet Pty Ltd AS174 562 476 86 15.3% Performance Systems International AS7496 123 38 85 69.1% Power Up AS4293 226 142 84 37.2% Internal ASN for C&W AS577 265 185 80 30.2% Bell Canada Backbone AS3749 134 61 73 54.5% TECNET AS4200 181 111 70 38.7% AGIS (Apex Global Information Ser AS3602 309 245 64 20.7% Sprint Canada Inc. AS705 134 75 59 44.0% ALTERNET-AS AS4740 351 293 58 16.5% Ozemail Pty Ltd (ASN-OZEMAIL) AS816 251 194 57 22.7% UUNET Canada (ASN-UUNETCA-AS4) AS209 330 276 54 16.4% Qwest Communications AS684 92 46 46 50.0% Manitoba Regional Network Backbon AS701 979 936 43 4.4% Alternet AS1 522 480 42 8.0% GTE Internetworking AS549 213 172 41 19.2% ONet Backbone AS9304 56 16 40 71.4% Hutchcity AS6528 45 7 38 84.4% WORLD-LYNX AS2493 122 84 38 31.1% iSTAR Internet, Inc. AS4755 108 71 37 34.3% Videsh Sanchar Nigam Ltd. India AS6629 63 28 35 55.6% NOAA-AS AS1727 97 63 34 35.1% MRMS-WEST 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