This is an auto-generated mail on Fri Jun 29 23:00:01 PDT 2001 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 GX Networks 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 29Jun01 0) General Status Table History ------------- Date Prefixes 220601 101078 230601 100823 240601 100985 250601 101071 260601 101116 270601 100751 280601 100644 290601 100654 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: 11095 Number of ASes announcing only one prefix: 6545 (3732 cidr, 2813 classful) Largest number of cidr routes: 1029 announced by AS701 Largest number of classful routes: 1429 announced by AS701  1) Gains by aggregating at the origin AS level --- 29Jun01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1366 1019 347 25.4% TELSTRA-AS AS701 1429 1216 213 14.9% Alternet AS4293 398 283 115 28.9% part of AS assignment AS4287 - AS AS6595 157 58 99 63.1% DoD Education Activity Network As AS705 237 141 96 40.5% part of AS assignment AS701 - AS7 AS6429 202 107 95 47.0% ATT LA Internet Chile AS7018 734 648 86 11.7% AT&T WorldNet Service Backbone AS4755 211 129 82 38.9% Videsh Sanchar Nigam Ltd. Autonom AS4151 159 77 82 51.6% part of AS assignment AS4151 - AS AS8013 300 220 80 26.7% PSINet Ltd. Canada AS13999 98 18 80 81.6% Mega Cable S.A. de C.V. AS577 246 173 73 29.7% Bell Advanced Communications Inc. AS724 238 166 72 30.3% part of AS assignment AS721 - AS7 AS6471 113 50 63 55.8% ENTEL CHILE S.A. AS7046 306 245 61 19.9% UUNET Technologies, Inc. AS3464 151 90 61 40.4% Alabama Research and Education Ne AS1 585 526 59 10.1% GTE Internetworking AS16758 63 6 57 90.5% IKON Office Solutions AS1239 446 391 55 12.3% SprintLink Backbone AS226 144 91 53 36.8% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 207 155 52 25.1% Supernet, Inc. AS17561 112 61 51 45.5% Internet service provision to Wes AS9842 54 5 49 90.7% Lotte Data Communication Company AS852 211 163 48 22.7% Telus Advanced Communications AS5106 82 34 48 58.5% Ameritech Advanced Data Services, AS2149 300 252 48 16.0% PSINET-2 AS15290 237 190 47 19.8% AT&T Canada IES AS855 143 97 46 32.2% part of AS assignment AS853 - AS1 AS3602 226 180 46 20.4% Sprint Canada Inc. 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