This is an auto-generated mail on Fri May 25 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 25May01 0) General Status Table History ------------- Date Prefixes 040501 104512 050501 104646 060501 104816 070501 106340 080501 105979 230501 101875 240501 101755 250501 101869 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 80.9.0.0/18 from AS3215 *** Bogus 80.9.128.0/18 from AS3215 *** Bogus 80.64.0.0/20 from AS3246 *** Bogus 80.64.128.0/20 from AS20751 *** Bogus 80.64.224.0/20 from AS3259 *** Bogus 80.65.128.0/20 from AS9057 *** Bogus 80.65.224.0/20 from AS13193 *** Bogus 80.66.32.0/20 from AS702 *** Bogus 80.66.128.0/20 from AS1239 *** Bogus 80.67.0.0/20 from AS20750 *** Bogus 80.67.32.0/20 from AS20752 *** Bogus 218.2.0.0/15 from AS4134 *** Bogus 218.4.0.0/16 from AS4134 *** Bogus 218.6.128.0/17 from AS4134 AS Summary ---------- Number of ASes in routing system: 10851 Number of ASes announcing only one prefix: 6431 (3657 cidr, 2774 classful) Largest number of cidr routes: 975 announced by AS701 Largest number of classful routes: 1409 announced by AS701  1) Gains by aggregating at the origin AS level --- 25May01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1391 1031 360 25.9% TELSTRA-AS AS13999 103 11 92 89.3% autonomous system number assigned AS11252 91 33 58 63.7% autonomous system number assigned AS226 150 93 57 38.0% Los Nettos AS16758 63 6 57 90.5% autonomous system number assigned AS2149 320 265 55 17.2% PSINET-2 AS1 592 539 53 9.0% GTE Internetworking AS11686 143 91 52 36.4% Education Networks of America AS10692 66 14 52 78.8% DLS Internet Services AS10692 AS17561 111 60 51 45.9% UNKNOWN AS13544 69 22 47 68.1% autonomous system number assigned AS11774 74 28 46 62.2% AS 11774 Object AS1267 67 25 42 62.7% Infostrada S.p.A. AS1237 94 52 42 44.7% KISTI AS1239 441 400 41 9.3% SprintLink Backbone AS12235 48 7 41 85.4% Cove Software Systems Inc AS2652 113 75 38 33.6% Government of Canada (GENet) back AS209 263 226 37 14.1% Qwest Communications AS19834 49 12 37 75.5% autonomous system number assigned AS18447 46 9 37 80.4% autonomous system number assigned AS13345 67 30 37 55.2% autonomous system number assigned AS14 51 15 36 70.6% Columbia University in the City o AS12302 63 28 35 55.6% MobiFon S.A. AS2007 153 119 34 22.2% Infonet Services Corporation AS11507 87 53 34 39.1% TouchAmerica Montana AS10620 52 18 34 65.4% autonomous system number assigned AS11311 42 9 33 78.6% autonomous system number assigned AS10479 40 7 33 82.5% ITESM-Rectoria Zona Norte AS1913 115 83 32 27.8% autonomous system number assigned AS11859 45 13 32 71.1% autonomous system number assigned 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