This is an auto-generated mail on Fri Oct 27 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 27Oct00 0) General Status Table History ------------- Date Prefixes 201000 89411 211000 89037 221000 89088 231000 89255 241000 89314 251000 89441 261000 89651 271000 89717 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: 8876 Number of ASes announcing only one prefix: 5070 (2831 cidr, 2239 classful) Largest number of cidr routes: 923 announced by AS701 Largest number of classful routes: 1138 announced by AS701  1) Gains by aggregating at the origin AS level --- 27Oct00 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 421 148 273 64.8% BCnet Backbone AS1221 590 439 151 25.6% TELSTRA-AS AS9269 180 47 133 73.9% Hong Kong CTI AS816 549 421 128 23.3% UUNET Canada (ASN-UUNETCA-AS4) AS2609 128 8 120 93.8% EUnet-TN AS6429 226 112 114 50.4% FirstCom Internet AS9304 130 17 113 86.9% Hutchcity AS8013 464 360 104 22.4% PSINET-CA AS7545 159 55 104 65.4% TPG Internet Pty Ltd AS4755 200 102 98 49.0% Videsh Sanchar Nigam Ltd. India AS705 356 259 97 27.2% ALTERNET-AS AS7657 312 217 95 30.4% The Internet Group Limited AS7046 347 255 92 26.5% UUNET-CUSTOMER AS7496 128 37 91 71.1% Power Up AS174 542 456 86 15.9% Performance Systems International AS701 1138 1055 83 7.3% Alternet AS4293 340 258 82 24.1% Internal ASN for C&W AS13999 91 9 82 90.1% UNKNOWN AS6595 138 57 81 58.7% DODDSEUR AS3908 251 172 79 31.5% Supernet, Inc. AS577 247 176 71 28.7% Bell Backbone AS724 218 151 67 30.7% DLA-ASNBLOCK-AS AS7018 582 516 66 11.3% AT&T WorldNet Service Backbone AS5106 100 37 63 63.0% AADS-COLUMBUS AS226 169 107 62 36.7% USC/Information Sciences Institut AS3749 118 57 61 51.7% TECNET AS1727 149 88 61 40.9% MRMS-WEST AS16758 63 6 57 90.5% UNKNOWN AS376 131 75 56 42.7% RISQ AS8151 180 126 54 30.0% UNINET-MX 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