This is an auto-generated mail on Fri May 29 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 29May98 0) General Status Table History ------------- Date Prefixes 220598 51216 230598 51177 240598 51178 250598 51283 260598 51277 270598 51199 280598 51156 290598 50967 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: 3606 Number of ASes announcing only one prefix: 1730 (908 cidr, 822 classful) Largest number of cidr routes: 359 announced by AS3561 Largest number of classful routes: 1096 announced by AS701  1) Gains by aggregating at the origin AS level --- 29May98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS816 807 522 285 35.3% UUNET Canada (ASN-UUNETCA-AS4) AS4293 468 238 230 49.1% IMCI AS2493 500 294 206 41.2% iSTAR Internet, Inc. AS174 815 626 189 23.2% Performance Systems International AS3602 493 310 183 37.1% Sprint Canada Inc. AS701 1096 918 178 16.2% Alternet AS3749 220 65 155 70.5% TECNET AS2048 164 92 72 43.9% LaNet AS5668 115 46 69 60.0% Century Telephone Inc. AS3221 110 41 69 62.7% EENet Autonomous System AS3248 129 61 68 52.7% VIAnet AS4755 95 28 67 70.5% Videsh Sanchar Nigam Ltd. India AS10928 108 44 64 59.3% UNKNOWN AS271 113 54 59 52.2% BCnet Backbone AS7046 190 132 58 30.5% UUNET-CUSTOMER AS3804 200 142 58 29.0% Bell Solutions AS549 206 154 52 25.2% ONet Backbone AS4539 74 24 50 67.6% NETROPOLIS AS1221 274 224 50 18.2% AARNET-AS AS72 85 37 48 56.5% Schlumberger Information Network AS6335 67 19 48 71.6% NTRNET AS1239 541 494 47 8.7% SprintLink Backbone AS4740 357 314 43 12.0% ASN-OZEMAIL (Ozemail Pty Ltd) AS852 159 118 41 25.8% AGT Advance Communication AS4200 136 96 40 29.4% AGIS (Apex Global Information Ser AS1591 144 105 39 27.1% SAIC DISM AS719 442 404 38 8.6% LANLINK autonomous system AS3493 165 127 38 23.0% INTERLINK AS6392 68 31 37 54.4% MidWest Communications, Inc. AS6181 65 28 37 56.9% FUSE-NET 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