This is an auto-generated mail on Fri May 21 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 21May99 0) General Status Table History ------------- Date Prefixes 140599 59083 150599 59128 160599 59127 170599 59193 180599 59298 190599 59365 200599 59432 210599 59570 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 221.43.160.0/19 from AS12323 AS Summary ---------- Number of ASes in routing system: 5001 Number of ASes announcing only one prefix: 2569 (1395 cidr, 1174 classful) Largest number of cidr routes: 400 announced by AS701 Largest number of classful routes: 810 announced by AS701  1) Gains by aggregating at the origin AS level --- 21May99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 354 144 210 59.3% BCnet Backbone AS4293 270 165 105 38.9% IMCI AS174 595 497 98 16.5% Performance Systems International AS4755 175 86 89 50.9% Videsh Sanchar Nigam Ltd. India AS2493 209 124 85 40.7% iSTAR Internet, Inc. AS577 254 175 79 31.1% Bell Canada Backbone AS3749 141 64 77 54.6% TECNET AS4200 174 98 76 43.7% AGIS (Apex Global Information Ser AS1267 94 24 70 74.5% IUNET-AS AS7496 99 30 69 69.7% Power Up AS1785 384 321 63 16.4% NYSERNet Backbone AS7545 111 49 62 55.9% TPG Internet Pty Ltd AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 458 397 61 13.3% TELSTRA-AS AS9269 68 9 59 86.8% Hong Kong CTI AS10928 111 54 57 51.4% UNKNOWN AS7657 170 114 56 32.9% The Internet Group Limited AS72 94 39 55 58.5% Schlumberger Information Network AS4740 329 274 55 16.7% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 475 421 54 11.4% LANLINK autonomous system AS1239 525 471 54 10.3% SprintLink Backbone AS7046 251 205 46 18.3% UUNET-CUSTOMER AS3737 111 73 38 34.2% PenTeleData Inc. (ASN-PTD) AS803 73 37 36 49.3% SaskNet Backbone AS1 499 464 35 7.0% BBNPLANET AS4307 32 1 31 96.9% SVINET-1 AS3549 132 101 31 23.5% Frontier GlobalCenter AS2907 208 177 31 14.9% SINET AS11515 32 1 31 96.9% UNKNOWN AS10479 36 5 31 86.1% ITESM-Rectoria Zona Norte 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