This is an auto-generated mail on Fri Oct 19 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. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report@cisco.com>.  ------------------------------------------------------------------------------ CIDR REPORT for 19Oct01 0) General Status Table History ------------- Date Prefixes 121001 104773 131001 104893 141001 104864 151001 104979 161001 105115 171001 105004 181001 105147 191001 104997 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: 11802 Number of ASes announcing only one prefix: 7010 (3983 cidr, 3027 classful) Largest number of cidr routes: 852 announced by AS701 Largest number of classful routes: 1392 announced by AS701  1) Gains by aggregating at the origin AS level --- 19Oct01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1231 944 287 23.3% Telstra Pty Ltd AS4151 306 171 135 44.1% USDA AS13999 136 9 127 93.4% Mega Cable S.A. de C.V. AS16473 201 76 125 62.2% Bell South AS577 304 184 120 39.5% Bell Advanced Communications Inc. AS4293 373 266 107 28.7% Cable & Wireless USA AS2048 216 116 100 46.3% State of Louisiana AS271 161 74 87 54.0% University of British Columbia AS11686 224 143 81 36.2% Education Networks of America AS4755 201 124 77 38.3% Videsh Sanchar Nigam Ltd. Autonom AS1239 488 414 74 15.2% Sprint AS12302 106 35 71 67.0% MobiFon S.A. AS4200 141 74 67 47.5% Apex Global Information Services, AS19632 72 7 65 90.3% Metropolis Intercom S.A. AS3464 160 96 64 40.0% Alabama SuperComputer Network AS17557 131 69 62 47.3% Pakistan Telecom AS16758 63 6 57 90.5% IKON Office Solutions AS209 308 253 55 17.9% Qwest AS306 60 6 54 90.0% National Guard Bureau AS226 146 93 53 36.3% Los Nettos AS400 136 85 51 37.5% Headquarters Standard Systems Cen AS17561 111 60 51 45.9% Internet service provision to Wes AS1913 155 106 49 31.6% Defense Logistics Agency AS1 527 479 48 9.1% BBN Planet AS10620 68 21 47 69.1% TVCABLE BOGOTA AS4323 247 201 46 18.6% Time Warner Communications, Inc. AS15290 248 202 46 18.5% AT&T Canada IES AS376 120 75 45 37.5% Reseau Interordinateurs Scientiqu AS16814 64 19 45 70.3% NSS, S.A. AS5106 81 38 43 53.1% Ameritech Advanced Data Services, 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