This is an auto-generated mail on Fri Feb 1 23:00:00 PST 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 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 01Feb02 0) General Status Table History ------------- Date Prefixes 250102 104855 260102 104659 270102 104702 280102 104727 290102 104793 300102 105544 310102 105664 010202 105568 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: 12323 Number of ASes announcing only one prefix: 7490 (4238 cidr, 3252 classful) Largest number of cidr routes: 705 announced by AS701 Largest number of classful routes: 1364 announced by AS701  1) Gains by aggregating at the origin AS level --- 01Feb02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1171 901 270 23.1% Telstra Pty Ltd AS701 1364 1130 234 17.2% UUNET Technologies, Inc. AS4151 287 156 131 45.6% USDA AS577 318 194 124 39.0% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS7018 818 700 118 14.4% AT&T AS6595 172 61 111 64.5% DoD Education Activity Network As AS17557 196 85 111 56.6% Pakistan Telecom AS705 286 183 103 36.0% UUNET Technologies, Inc. AS7046 327 226 101 30.9% UUNET Technologies, Inc. AS852 384 288 96 25.0% Telus Advanced Communications AS19632 94 9 85 90.4% Metropolis Intercom S.A. AS2048 185 105 80 43.2% State of Louisiana AS12302 112 33 79 70.5% MobiFon S.A. AS1239 469 393 76 16.2% Sprint AS4755 222 151 71 32.0% Videsh Sanchar Nigam Ltd. Autonom AS703 275 213 62 22.5% UUNET Technologies, Inc. AS3464 159 97 62 39.0% Alabama SuperComputer Network AS4200 118 57 61 51.7% Apex Global Information Services, AS7303 107 49 58 54.2% Telecom Argentina Stet-France Tel AS724 210 153 57 27.1% DLA Systems Automation Center AS16758 63 6 57 90.5% IKON Office Solutions AS3908 329 273 56 17.0% Supernet, Inc. AS226 145 89 56 38.6% Los Nettos AS13999 70 14 56 80.0% Mega Cable S.A. de C.V. AS702 654 599 55 8.4% UUNET Technologies, Inc. AS19834 63 8 55 87.3% NetForce, Inc. AS4323 384 330 54 14.1% Time Warner Communications, Inc. AS2149 310 257 53 17.1% Performance Systems, Inc. AS1 487 436 51 10.5% BBN Planet Total 53887 42128 11759 21.8% 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