This is an auto-generated mail on Fri Dec 4 12:00:00 PST 1998 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 04Dec98 0) General Status Table History ------------- Date Prefixes 271198 54161 281198 53936 291198 53897 301198 54139 011298 54213 021298 54287 031298 54269 041298 56909 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: 4292 Number of ASes announcing only one prefix: 2100 (1123 cidr, 977 classful) Largest number of cidr routes: 353 announced by AS3561 Largest number of classful routes: 981 announced by AS701  1) Gains by aggregating at the origin AS level --- 04Dec98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 349 152 197 56.4% BCnet Backbone AS3749 230 70 160 69.6% TECNET AS2493 335 188 147 43.9% iSTAR Internet, Inc. AS1785 534 400 134 25.1% NYSERNet Backbone AS701 981 848 133 13.6% Alternet AS174 688 557 131 19.0% Performance Systems International AS5668 125 39 86 68.8% Century Telephone Inc. AS4200 170 90 80 47.1% AGIS (Apex Global Information Ser AS1267 109 30 79 72.5% IUNET-AS AS4755 135 63 72 53.3% Videsh Sanchar Nigam Ltd. India AS4293 205 133 72 35.1% IMCI AS549 223 155 68 30.5% ONet Backbone AS4740 388 328 60 15.5% Ozemail Pty Ltd (ASN-OZEMAIL) AS1221 387 330 57 14.7% AARNET-AS AS8517 127 71 56 44.1% UNKNOWN AS7046 258 202 56 21.7% UUNET-CUSTOMER AS6335 71 19 52 73.2% NTRNET AS7545 117 66 51 43.6% TPG Internet Pty Ltd AS72 88 40 48 54.5% Schlumberger Information Network AS7657 134 87 47 35.1% The Internet Group Limited AS1239 524 477 47 9.0% SprintLink Backbone AS577 210 165 45 21.4% CA*net Networking Inc Backbone AS7496 75 31 44 58.7% Power Up AS3221 84 42 42 50.0% RIPE-ASNBLOCK4 AS852 170 129 41 24.1% AGT Advance Communication AS10928 89 48 41 46.1% UNKNOWN AS719 440 401 39 8.9% LANLINK-AS AS7122 113 76 37 32.7% MTS ADVANCED Network Policy AS803 71 35 36 50.7% SaskNet Backbone AS3564 69 36 33 47.8% Microserve Infromation Systems In 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