This is an auto-generated mail on Fri Dec 7 23:00:00 PST 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 07Dec01 0) General Status Table History ------------- Date Prefixes 301101 104104 011201 104113 021201 104416 031201 104321 041201 104345 051201 104395 061201 104443 071201 104426 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: 12122 Number of ASes announcing only one prefix: 7324 (4156 cidr, 3168 classful) Largest number of cidr routes: 801 announced by AS701 Largest number of classful routes: 1352 announced by AS701  1) Gains by aggregating at the origin AS level --- 07Dec01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1197 920 277 23.1% Telstra Pty Ltd AS4151 294 161 133 45.2% USDA AS577 314 193 121 38.5% Bell Advanced Communications Inc. AS16473 198 77 121 61.1% Bell South AS4755 226 141 85 37.6% Videsh Sanchar Nigam Ltd. Autonom AS2048 184 105 79 42.9% State of Louisiana AS1239 489 410 79 16.2% Sprint AS17557 155 78 77 49.7% Pakistan Telecom AS19632 87 11 76 87.4% Metropolis Intercom S.A. AS12302 107 31 76 71.0% MobiFon S.A. AS3464 161 96 65 40.4% Alabama SuperComputer Network AS2149 347 283 64 18.4% Performance Systems, Inc. AS4323 373 315 58 15.5% Time Warner Communications, Inc. AS16758 63 6 57 90.5% IKON Office Solutions AS4200 111 55 56 50.5% Apex Global Information Services, AS13999 68 14 54 79.4% Mega Cable S.A. de C.V. AS1 520 466 54 10.4% BBN Planet AS3908 310 257 53 17.1% Supernet, Inc. AS17561 115 64 51 44.3% Internet service provision to Wes AS376 123 73 50 40.7% Reseau Interordinateurs Scientiqu AS209 298 248 50 16.8% Qwest AS16814 65 18 47 72.3% NSS, S.A. AS15290 237 194 43 18.1% AT&T Canada IES AS11139 90 47 43 47.8% Cable & Wireless Dominica AS10620 64 21 43 67.2% TVCABLE BOGOTA AS10292 72 29 43 59.7% TELECOMMUNICATIONS OF JAMAICA AS5536 60 18 42 70.0% Internet Egypt Network AS5416 51 9 42 82.4% BATELCO-BH AS19834 56 14 42 75.0% NetForce, Inc. AS1267 68 26 42 61.8% Infostrada S.p.A. 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