This is an auto-generated mail on Fri May 19 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 19May00 0) General Status Table History ------------- Date Prefixes 080400 75151 090400 75137 100400 75215 110400 75403 120400 75730 130400 75919 010500 76182 020500 76265 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: 5027 Number of ASes announcing only one prefix: 1865 (0 cidr, 1865 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 1002 announced by AS701  1) Gains by aggregating at the origin AS level --- 19May00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 437 152 285 65.2% BCnet Backbone AS7046 500 336 164 32.8% COQUI-NET PRTC Internet AS9269 167 29 138 82.6% Hong Kong CTI AS9706 153 26 127 83.0% Pusan Metropolitan City Office of AS1221 529 408 121 22.9% TELSTRA-AS AS2609 123 18 105 85.4% EUnet-TN AS7545 164 66 98 59.8% TPG Internet Pty Ltd AS7657 264 168 96 36.4% The Internet Group Limited AS174 552 464 88 15.9% Performance Systems International AS7496 126 39 87 69.0% Power Up AS9304 109 24 85 78.0% Hutchcity AS9557 100 17 83 83.0% Pakistan Telecommunication Compan AS6429 204 121 83 40.7% RDC-INTERNET AS577 248 172 76 30.6% Bell Backbone AS7029 146 71 75 51.4% UNKNOWN AS209 463 392 71 15.3% Qwest Communications AS7018 529 463 66 12.5% AT&T WorldNet Service Backbone AS1727 162 98 64 39.5% MRMS-WEST AS4293 253 190 63 24.9% Internal ASN for C&W AS724 205 143 62 30.2% UNKNOWN AS7260 111 50 61 55.0% NORLIGHT AS705 270 209 61 22.6% UNKNOWN AS3749 121 61 60 49.6% TECNET AS3602 307 249 58 18.9% Sprint Canada Inc. AS6595 107 50 57 53.3% UNKNOWN AS4740 336 279 57 17.0% Ozemail Pty Ltd (ASN-OZEMAIL) AS5106 81 29 52 64.2% UNKNOWN AS7568 63 18 45 71.4% C.S. Communications Co., Ltd. AS816 308 266 42 13.6% UUNET Canada (ASN-UUNETCA-AS4) AS6528 48 6 42 87.5% WORLD-LYNX 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