This is an auto-generated mail on Fri May 28 12:00:02 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 28May99 0) General Status Table History ------------- Date Prefixes 210599 59570 220599 59339 230599 59259 240599 59294 250599 59763 260599 60611 270599 60580 280599 60794 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: 5031 Number of ASes announcing only one prefix: 2576 (1405 cidr, 1171 classful) Largest number of cidr routes: 406 announced by AS701 Largest number of classful routes: 1226 announced by AS209  1) Gains by aggregating at the origin AS level --- 28May99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS209 1226 567 659 53.8% Qwest Communications AS271 358 147 211 58.9% BCnet Backbone AS4293 273 168 105 38.5% IMCI AS174 582 488 94 16.2% Performance Systems International AS4755 172 86 86 50.0% Videsh Sanchar Nigam Ltd. India AS577 255 176 79 31.0% Bell Canada Backbone AS4200 169 93 76 45.0% AGIS (Apex Global Information Ser AS3749 136 62 74 54.4% TECNET AS1267 94 24 70 74.5% IUNET-AS AS7496 99 33 66 66.7% Power Up AS7545 112 48 64 57.1% TPG Internet Pty Ltd AS7122 139 78 61 43.9% MTS ADVANCED Network Policy AS1221 457 396 61 13.3% TELSTRA-AS AS7657 179 122 57 31.8% The Internet Group Limited AS10928 111 54 57 51.4% UNKNOWN AS9269 65 10 55 84.6% Hong Kong CTI AS72 94 39 55 58.5% Schlumberger Information Network AS4740 325 270 55 16.9% Ozemail Pty Ltd (ASN-OZEMAIL) AS719 474 420 54 11.4% LANLINK autonomous system AS1239 526 472 54 10.3% SprintLink Backbone AS2493 175 122 53 30.3% iSTAR Internet, Inc. AS7046 265 213 52 19.6% UUNET-CUSTOMER AS3737 161 111 50 31.1% PenTeleData Inc. (ASN-PTD) AS803 73 37 36 49.3% SaskNet Backbone AS1 495 460 35 7.1% BBNPLANET AS6172 153 120 33 21.6% HOME-NET-1 AS1785 246 214 32 13.0% NYSERNet Backbone AS549 163 132 31 19.0% ONet Backbone AS4307 32 1 31 96.9% SVINET-1 AS3549 133 102 31 23.3% Frontier GlobalCenter 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