This is an auto-generated mail on Fri Jul 19 23:00:00 PDT 2002 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 amount 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 19Jul02 0) General Status Table History ------------- Date Prefixes 120702 111339 130702 111268 140702 111583 150702 111941 160702 112093 170702 111866 180702 111800 190702 111736 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 88.128.0.0/17 from AS9116 *** Bogus 88.128.128.0/17 from AS9116 *** Bogus 88.129.0.0/17 from AS9116 *** Bogus 88.129.128.0/17 from AS9116 AS Summary ---------- Number of ASes in routing system: 13270 Number of ASes announcing only one prefix: 8089 (4550 cidr, 3539 classful) Largest number of cidr routes: 629 announced by AS3908 Largest number of classful routes: 1221 announced by AS701  1) Gains by aggregating at the origin AS level --- 19Jul02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1089 841 248 22.8% Telstra Pty Ltd AS701 1221 978 243 19.9% UUNET Technologies, Inc. AS17557 293 101 192 65.5% Pakistan Telecom AS6595 221 54 167 75.6% DoD Education Activity Network As AS852 538 401 137 25.5% Telus Advanced Communications AS7018 808 681 127 15.7% AT&T AS16473 195 77 118 60.5% Bell South AS7303 171 74 97 56.7% Telecom Argentina Stet-France Tel AS5515 437 341 96 22.0% Sonera Finland Autonomous System AS4151 236 141 95 40.3% USDA AS19632 99 5 94 94.9% Metropolis Intercom S.A. AS1239 517 423 94 18.2% Sprint AS12302 119 26 93 78.2% MobiFon S.A. AS16814 105 20 85 81.0% NSS, S.A. AS226 171 88 83 48.5% Los Nettos AS7046 306 227 79 25.8% UUNET Technologies, Inc. AS4755 209 133 76 36.4% Videsh Sanchar Nigam Ltd. Autonom AS2048 180 105 75 41.7% State of Louisiana AS577 263 190 73 27.8% Bell Advanced Communications Inc. AS4323 401 333 68 17.0% Time Warner Communications, Inc. AS724 214 152 62 29.0% DLA Systems Automation Center AS3464 163 103 60 36.8% Alabama SuperComputer Network AS19834 64 4 60 93.8% NetForce, Inc. AS10620 84 24 60 71.4% TVCABLE BOGOTA AS1 444 386 58 13.1% GENUITY AS209 315 258 57 18.1% Qwest AS16758 63 6 57 90.5% IKON Office Solutions AS9051 82 26 56 68.3% INCONET Autonomous System AS3908 297 241 56 18.9% Supernet, Inc. AS9498 84 29 55 65.5% BHARTI BT INTERNET LTD. Total 55004 42386 12618 22.9% 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