This is an auto-generated mail on Fri Aug 20 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 20Aug99 0) General Status Table History ------------- Date Prefixes 130899 63211 140899 63141 150899 62759 160899 63207 170899 63568 180899 62556 190899 62479 200899 62592 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: 5048 Number of ASes announcing only one prefix: 2612 (1328 cidr, 1284 classful) Largest number of cidr routes: 445 announced by AS701 Largest number of classful routes: 835 announced by AS701  1) Gains by aggregating at the origin AS level --- 20Aug99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 335 145 190 56.7% BCnet Backbone AS2609 127 13 114 89.8% EUnet-TN AS1221 555 455 100 18.0% TELSTRA-AS AS577 290 196 94 32.4% Bell Canada Backbone AS174 574 480 94 16.4% Performance Systems International AS4293 235 145 90 38.3% IMCI AS7046 319 234 85 26.6% UUNET-CUSTOMER AS7657 237 160 77 32.5% The Internet Group Limited AS7545 140 65 75 53.6% TPG Internet Pty Ltd AS4200 176 101 75 42.6% AGIS (Apex Global Information Ser AS3749 139 64 75 54.0% TECNET AS209 318 243 75 23.6% Qwest Communications AS7496 108 34 74 68.5% Power Up AS10928 118 48 70 59.3% UNKNOWN AS9269 88 19 69 78.4% Hong Kong CTI AS1785 372 311 61 16.4% NYSERNet Backbone AS6944 63 6 57 90.5% RapidSite, Inc. AS4755 136 79 57 41.9% Videsh Sanchar Nigam Ltd. India AS4740 359 304 55 15.3% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 462 410 52 11.3% LANLINK autonomous system AS2493 156 107 49 31.4% iSTAR Internet, Inc. AS684 92 46 46 50.0% Manitoba Regional Network Backbon AS549 209 169 40 19.1% ONet Backbone AS3737 102 65 37 36.3% PenTeleData Inc. (ASN-PTD) AS1 506 469 37 7.3% BBNPLANET AS10724 42 8 34 81.0% UNKNOWN AS4307 32 1 31 96.9% SVINET-1 AS10479 40 9 31 77.5% ITESM-Rectoria Zona Norte AS8023 43 13 30 69.8% CASTLES AS7745 38 8 30 78.9% BIGSKY-AS 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