This is an auto-generated mail on Fri Mar 27 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 27Mar98 0) General Status Table History ------------- Date Prefixes 200398 49893 210398 50064 220398 50031 230398 49930 240398 49998 250398 50244 260398 49981 270398 50071 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: 3371 Number of ASes announcing only one prefix: 1596 (826 cidr, 770 classful) Largest number of cidr routes: 418 announced by AS3561 Largest number of classful routes: 1039 announced by AS701  1) Gains by aggregating at the origin AS level --- 27Mar98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS4293 437 213 224 51.3% IMCI AS2493 560 343 217 38.8% iSTAR Internet, Inc. AS816 653 448 205 31.4% UUNET Canada (ASN-UUNETCA-AS4) AS3602 465 300 165 35.5% Sprint Canada Inc. AS174 786 627 159 20.2% Performance Systems International AS3749 219 64 155 70.8% TECNET AS701 1039 885 154 14.8% Alternet AS11003 128 56 72 56.2% UNKNOWN AS5668 113 42 71 62.8% Century Telephone Inc. AS2048 160 92 68 42.5% LaNet AS3221 102 37 65 63.7% EENet Autonomous System AS3804 205 142 63 30.7% Bell Solutions AS1239 550 493 57 10.4% SprintLink Backbone AS271 110 54 56 50.9% BCnet Backbone AS10928 98 43 55 56.1% UNKNOWN AS549 211 160 51 24.2% ONet Backbone AS4755 84 34 50 59.5% Videsh Sanchar Nigam Ltd. India AS1221 272 223 49 18.0% AARNET-AS AS72 84 36 48 57.1% Schlumberger Information Network AS4763 122 76 46 37.7% Telstra New Zealand AS7046 146 102 44 30.1% UUNET-CUSTOMER AS6392 73 29 44 60.3% MidWest Communications, Inc. AS4740 355 313 42 11.8% ASN-OZEMAIL (Ozemail Pty Ltd) AS2711 98 56 42 42.9% SUNBELT-AS AS852 157 117 40 25.5% AGT Advance Communication AS6335 63 23 40 63.5% NTRNET AS3493 162 124 38 23.5% INTERLINK AS684 90 53 37 41.1% Manitoba Regional Network Backbon AS6332 83 46 37 44.6% TELNOR AS4200 127 90 37 29.1% AGIS (Apex Global Information Ser 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