This is an auto-generated mail on Fri Feb 19 12:00:00 PST 1999 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 19Feb99 0) General Status Table History ------------- Date Prefixes 120299 55713 130299 55907 140299 55818 150299 55997 160299 56035 170299 56178 180299 56403 190299 56528 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: 4569 Number of ASes announcing only one prefix: 2279 (1216 cidr, 1063 classful) Largest number of cidr routes: 353 announced by AS701 Largest number of classful routes: 850 announced by AS701 1) Gains by aggregating at the origin AS level --- 19Feb99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 353 138 215 60.9% BCnet Backbone AS2493 273 155 118 43.2% iSTAR Internet, Inc. AS174 652 536 116 17.8% Performance Systems International AS11305 116 8 108 93.1% UNKNOWN AS3749 149 65 84 56.4% TECNET AS1267 107 29 78 72.9% IUNET-AS AS4293 222 148 74 33.3% IMCI AS4755 151 80 71 47.0% Videsh Sanchar Nigam Ltd. India AS7046 280 215 65 23.2% UUNET-CUSTOMER AS4200 161 98 63 39.1% AGIS (Apex Global Information Ser AS4740 386 325 61 15.8% Ozemail Pty Ltd (ASN-OZEMAIL) AS1239 521 464 57 10.9% SprintLink Backbone AS1221 407 351 56 13.8% AARNET-AS AS7545 110 55 55 50.0% TPG Internet Pty Ltd AS7657 142 90 52 36.6% The Internet Group Limited AS72 89 37 52 58.4% Schlumberger Information Network AS10928 104 53 51 49.0% UNKNOWN AS577 222 172 50 22.5% Bell Canada Backbone AS7496 76 27 49 64.5% Power Up AS719 456 410 46 10.1% LANLINK autonomous system AS852 173 135 38 22.0% AGT Advance Communication AS5674 64 27 37 57.8% PBI-NET-BLK AS803 72 36 36 50.0% SaskNet Backbone AS701 850 814 36 4.2% Alternet AS6897 63 27 36 57.1% Global-One Spain AS7122 112 77 35 31.2% MTS ADVANCED Network Policy AS1785 249 217 32 12.9% NYSERNet Backbone AS6332 97 66 31 32.0% TELNOR AS4307 32 1 31 96.9% SVINET-1 AS2707 63 32 31 49.2% WEC 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