This is an auto-generated mail on Fri Nov 20 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 20Nov98 0) General Status Table History ------------- Date Prefixes 131198 53601 141198 53727 151198 53552 161198 55111 171198 55374 181198 55152 191198 54897 201198 54986 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: 4227 Number of ASes announcing only one prefix: 2060 (1080 cidr, 980 classful) Largest number of cidr routes: 339 announced by AS3561 Largest number of classful routes: 1083 announced by AS3909  1) Gains by aggregating at the origin AS level --- 20Nov98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS3909 1083 567 516 47.6% Supernet, Inc. AS271 347 151 196 56.5% BCnet Backbone AS3749 230 70 160 69.6% TECNET AS2493 347 197 150 43.2% iSTAR Internet, Inc. AS1785 534 399 135 25.3% NYSERNet Backbone AS701 986 854 132 13.4% Alternet AS174 689 557 132 19.2% Performance Systems International AS4200 187 95 92 49.2% AGIS (Apex Global Information Ser AS5668 126 39 87 69.0% Century Telephone Inc. AS1267 108 29 79 73.1% IUNET-AS AS4755 134 60 74 55.2% Videsh Sanchar Nigam Ltd. India AS4293 207 135 72 34.8% IMCI AS549 222 158 64 28.8% ONet Backbone AS4740 374 317 57 15.2% Ozemail Pty Ltd (ASN-OZEMAIL) AS7046 254 198 56 22.0% UUNET-CUSTOMER AS8517 126 72 54 42.9% ULAKNET-ASN 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 AS1239 528 480 48 9.1% SprintLink Backbone AS1221 363 316 47 12.9% AARNET-AS AS803 77 33 44 57.1% SaskNet Backbone AS7122 128 85 43 33.6% MTS ADVANCED Network Policy AS10928 91 48 43 47.3% UNKNOWN AS3221 84 42 42 50.0% EENet Autonomous System AS852 167 126 41 24.6% AGT Advance Communication AS3804 183 143 40 21.9% Bell Solutions AS719 436 400 36 8.3% LANLINK autonomous system AS7657 96 61 35 36.5% The Internet Group Limited AS7496 66 33 33 50.0% Power Up 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