This is an auto-generated mail on Fri Sep 25 12:00:00 PDT 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 25Sep98 0) General Status Table History ------------- Date Prefixes 180998 52123 190998 51991 200998 51978 210998 52066 220998 51837 230998 51717 240998 51971 250998 51953 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: 4041 Number of ASes announcing only one prefix: 1941 (1013 cidr, 928 classful) Largest number of cidr routes: 341 announced by AS3561 Largest number of classful routes: 948 announced by AS701  1) Gains by aggregating at the origin AS level --- 25Sep98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 349 151 198 56.7% BCnet Backbone AS4293 418 245 173 41.4% IMCI AS3749 232 72 160 69.0% TECNET AS2493 362 206 156 43.1% iSTAR Internet, Inc. AS701 948 817 131 13.8% Alternet AS174 699 569 130 18.6% Performance Systems International AS4200 188 96 92 48.9% AGIS (Apex Global Information Ser AS5668 127 40 87 68.5% Century Telephone Inc. AS4755 124 47 77 62.1% Videsh Sanchar Nigam Ltd. India AS7046 246 170 76 30.9% UUNET-CUSTOMER AS2685 224 148 76 33.9% IBM Global Network - US AS3804 230 157 73 31.7% Bell Solutions AS3221 118 45 73 61.9% EENet Autonomous System AS4740 395 334 61 15.4% Ozemail Pty Ltd (ASN-OZEMAIL) AS8517 124 72 52 41.9% ULAKNET-ASN AS549 197 147 50 25.4% ONet Backbone AS6335 69 20 49 71.0% NTRNET AS72 87 39 48 55.2% Schlumberger Information Network AS1239 541 494 47 8.7% SprintLink Backbone AS803 77 33 44 57.1% SaskNet Backbone AS7122 122 80 42 34.4% MTS ADVANCED Network Policy AS7545 104 63 41 39.4% TPG Internet Pty Ltd AS4539 68 28 40 58.8% NETROPOLIS AS852 160 121 39 24.4% AGT Advance Communication AS1221 310 271 39 12.6% AARNET-AS AS6181 67 29 38 56.7% FUSE-NET AS10459 46 9 37 80.4% WANSASN AS10928 87 51 36 41.4% UNKNOWN AS2707 64 31 33 51.6% WEC AS1273 62 29 33 53.2% ECRC Network 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