This is an auto-generated mail on Fri Jun 1 23:00:00 PDT 2001 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 01Jun01 0) General Status Table History ------------- Date Prefixes 250501 101869 260501 101666 270501 101615 280501 101654 290501 101680 300501 101711 310501 102185 010601 102687 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: 10917 Number of ASes announcing only one prefix: 6470 (3678 cidr, 2792 classful) Largest number of cidr routes: 1111 announced by AS705 Largest number of classful routes: 1406 announced by AS701  1) Gains by aggregating at the origin AS level --- 01Jun01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1385 1032 353 25.5% TELSTRA-AS AS13999 103 11 92 89.3% autonomous system number assigned AS1 591 536 55 9.3% GTE Internetworking AS13544 71 18 53 74.6% autonomous system number assigned AS10692 67 14 53 79.1% DLS Internet Services AS10692 AS11686 143 93 50 35.0% Education Networks of America AS11774 74 28 46 62.2% AS 11774 Object AS1239 444 400 44 9.9% SprintLink Backbone AS1267 68 26 42 61.8% Infostrada S.p.A. AS1237 96 54 42 43.8% KISTI AS12235 48 7 41 85.4% Cove Software Systems Inc AS12302 66 28 38 57.6% MobiFon S.A. AS14 51 15 36 70.6% Columbia University in the City o AS10620 52 18 34 65.4% autonomous system number assigned AS13345 66 33 33 50.0% autonomous system number assigned AS11507 86 53 33 38.4% TouchAmerica Montana AS11311 42 9 33 78.6% autonomous system number assigned AS12064 34 2 32 94.1% autonomous system number assigned AS11859 45 13 32 71.1% autonomous system number assigned AS12497 32 1 31 96.9% SA*Net Network - AS AS12067 32 1 31 96.9% autonomous system number assigned AS12062 34 3 31 91.2% autonomous system number assigned AS11606 43 12 31 72.1% autonomous system number assigned AS14103 36 7 29 80.6% ACD.net Network AS11418 45 16 29 64.4% autonomous system number assigned AS11371 76 48 28 36.8% Rhythms AS10722 58 31 27 46.6% Aluminum Co. of America AS13208 32 6 26 81.2% Newtel Solutions Autonomous Syste AS12709 32 6 26 81.2% Melita Cable Autonomous System AS12564 31 5 26 83.9% Bulgarian Government Autonomous S 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