This is an auto-generated mail on Fri Jan 8 12:00:00 PST 1999 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 08Jan99 0) General Status Table History ------------- Date Prefixes 010199 55011 020199 55001 030199 54615 040199 54770 050199 54954 060199 54958 070199 55003 080199 54976 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: 4389 Number of ASes announcing only one prefix: 2167 (1158 cidr, 1009 classful) Largest number of cidr routes: 351 announced by AS3561 Largest number of classful routes: 1010 announced by AS701  1) Gains by aggregating at the origin AS level --- 08Jan99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 391 145 246 62.9% UNKNOWN AS3749 231 71 160 69.3% UNKNOWN AS701 1010 861 149 14.8% UNKNOWN AS2493 326 179 147 45.1% UNKNOWN AS174 669 546 123 18.4% UNKNOWN AS5668 131 35 96 73.3% UNKNOWN AS4200 188 97 91 48.4% UNKNOWN AS4755 150 68 82 54.7% UNKNOWN AS1267 111 30 81 73.0% UNKNOWN AS4293 207 135 72 34.8% UNKNOWN AS549 220 154 66 30.0% UNKNOWN AS4740 393 329 64 16.3% UNKNOWN AS8517 133 74 59 44.4% UNKNOWN AS1221 381 323 58 15.2% UNKNOWN AS7046 251 195 56 22.3% UNKNOWN AS72 89 37 52 58.4% UNKNOWN AS7657 140 89 51 36.4% UNKNOWN AS3493 248 197 51 20.6% UNKNOWN AS7545 114 64 50 43.9% UNKNOWN AS1239 530 483 47 8.9% UNKNOWN AS10928 95 48 47 49.5% UNKNOWN AS7496 74 28 46 62.2% UNKNOWN AS577 205 160 45 22.0% UNKNOWN AS852 175 133 42 24.0% UNKNOWN AS719 452 410 42 9.3% UNKNOWN AS3221 84 42 42 50.0% UNKNOWN AS803 71 35 36 50.7% UNKNOWN AS7122 109 75 34 31.2% UNKNOWN AS1 503 470 33 6.6% UNKNOWN AS6897 46 14 32 69.6% UNKNOWN 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