This is an auto-generated mail on Fri Jul 21 12:00:00 PDT 2000 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 21Jul00 0) General Status Table History ------------- Date Prefixes 140700 82006 150700 82099 160700 81998 170700 81940 180700 82120 190700 82574 200700 82381 210700 82529 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: 7959 Number of ASes announcing only one prefix: 4467 (2482 cidr, 1985 classful) Largest number of cidr routes: 964 announced by AS701 Largest number of classful routes: 1068 announced by AS701 1) Gains by aggregating at the origin AS level --- 21Jul00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 436 149 287 65.8% BCnet Backbone AS7046 638 397 241 37.8% COQUI-NET PRTC Internet AS1221 560 401 159 28.4% TELSTRA-AS AS9706 154 21 133 86.4% Pusan Metropolitan City Office of AS2609 128 8 120 93.8% EUnet-TN AS7657 295 187 108 36.6% The Internet Group Limited AS9304 123 17 106 86.2% Hutchcity AS7545 155 57 98 63.2% TPG Internet Pty Ltd AS6429 213 115 98 46.0% RDC-INTERNET AS9269 154 63 91 59.1% Hong Kong CTI AS7496 126 38 88 69.8% Power Up AS4293 334 247 87 26.0% Internal ASN for C&W AS174 553 467 86 15.6% Performance Systems International AS577 256 171 85 33.2% Bell Backbone AS705 327 250 77 23.5% ALTERNET-AS AS724 218 150 68 31.2% DLA-ASNBLOCK-AS AS1727 161 94 67 41.6% MRMS-WEST AS3908 256 190 66 25.8% Supernet, Inc. AS701 1068 1007 61 5.7% Alternet AS6595 112 51 61 54.5% DODDSEUR AS5106 95 35 60 63.2% AADS-COLUMBUS AS3749 121 62 59 48.8% TECNET AS7568 81 24 57 70.4% C.S. Communications Co., Ltd. AS7018 551 494 57 10.3% AT&T WorldNet Service Backbone AS3602 300 244 56 18.7% Sprint Canada Inc. AS4755 154 101 53 34.4% Videsh Sanchar Nigam Ltd. India AS4740 323 271 52 16.1% Ozemail Pty Ltd (ASN-OZEMAIL) AS7993 78 28 50 64.1% Global One Communications AS1785 359 311 48 13.4% NYSERNet Backbone AS11252 86 38 48 55.8% Idaho State University 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