This is an auto-generated mail on Fri Apr 13 23:00:02 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 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 13Apr01 0) General Status Table History ------------- Date Prefixes 060401 99382 070401 99975 080401 99951 090401 100057 100401 99187 110401 99440 120401 100138 130401 99823 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 223.255.46.0 from AS6853 *** Bogus 223.255.70.0 from AS6853 AS Summary ---------- Number of ASes in routing system: 10451 Number of ASes announcing only one prefix: 6152 (3491 cidr, 2661 classful) Largest number of cidr routes: 1051 announced by AS705 Largest number of classful routes: 1589 announced by AS1221  1) Gains by aggregating at the origin AS level --- 13Apr01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1589 1191 398 25.0% Telstra Pty Ltd AS701 1471 1283 188 12.8% UUNET Technologies, Inc. AS15412 666 535 131 19.7% FLAG Telecom Global Internet AS AS6429 210 103 107 51.0% RdC Internet AS4151 245 142 103 42.0% USDA AS6595 165 63 102 61.8% DoD Education Activity Network As AS705 342 245 97 28.4% UUNET Technologies, Inc. AS4293 372 281 91 24.5% Cable & Wireless USA AS7018 697 609 88 12.6% AT&T AS8013 321 236 85 26.5% PSINet Ltd. Canada AS4755 218 136 82 37.6% Videsh Sanchar Nigam Ltd. Autonom AS13999 97 16 81 83.5% Mega Cable S.A. de C.V. AS577 241 172 69 28.6% Bell Advanced Communications Inc. AS5106 98 35 63 64.3% Ameritech Advanced Data Services, AS3749 120 59 61 50.8% Tennessee Board of Regents AS3464 152 91 61 40.1% Alabama SuperComputer Network AS11252 92 34 58 63.0% ISU Computer Center Bldg. 5 AS16758 63 6 57 90.5% IKON Office Solutions AS6413 67 11 56 83.6% Southern Online Systems, Inc. AS226 149 93 56 37.6% Los Nettos AS1 606 550 56 9.2% BBN Planet AS724 201 146 55 27.4% DLA Systems Automation Center AS4323 232 178 54 23.3% Time Warner Communications, Inc. AS6471 99 46 53 53.5% ENTEL CHILE S.A. AS7568 83 31 52 62.7% C.S. Communications Co., Ltd. AS9498 72 22 50 69.4% BHARTI BT INTERNET LTD. AS9269 115 66 49 42.6% City Telecom (H.K.) Ltd. AS852 200 152 48 24.0% Telus Advanced Communications AS10692 62 14 48 77.4% DLS Computer Services, Inc. AS174 407 360 47 11.5% PSINet 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