This is an auto-generated mail on Fri Feb 23 23:00:02 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. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 23Feb01 0) General Status Table History ------------- Date Prefixes 110201 96509 120201 96907 200201 96086 200201 96219 200201 96217 210201 96188 220201 96107 230201 96158 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 91.16.23.0/24 from AS11770 AS Summary ---------- Number of ASes in routing system: 10023 Number of ASes announcing only one prefix: 5876 (3327 cidr, 2549 classful) Largest number of cidr routes: 959 announced by AS701 Largest number of classful routes: 1714 announced by AS701  1) Gains by aggregating at the origin AS level --- 23Feb01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1714 1502 212 12.4% UUNET Technologies, Inc. AS1221 640 487 153 23.9% Telstra Pty Ltd AS8006 145 19 126 86.9% Systems & Software Consortium, In AS7545 193 73 120 62.2% TPG Internet Pty Ltd AS9269 163 52 111 68.1% Internet service Provider in Hong AS13999 109 7 102 93.6% Mega Cable S.A. de C.V. AS6595 161 62 99 61.5% DoD Education Activity Network As AS4293 380 287 93 24.5% Cable & Wireless USA AS6429 192 101 91 47.4% RdC Internet AS271 197 107 90 45.7% University of British Columbia AS8013 330 244 86 26.1% PSINet Ltd. Canada AS705 329 243 86 26.1% UUNET Technologies, Inc. AS7496 103 22 81 78.6% Power Up AS4755 207 127 80 38.6% Videsh Sanchar Nigam Ltd. Autonom AS4151 242 166 76 31.4% USDA AS1942 136 64 72 52.9% FR-CICG-GRENOBLE AS7018 631 560 71 11.3% AT&T AS577 235 166 69 29.4% Bell Advanced Communications Inc. AS7046 322 254 68 21.1% UUNET Technologies, Inc. AS5106 101 37 64 63.4% Ameritech Advanced Data Services, AS724 220 157 63 28.6% DLA Systems Automation Center AS1727 156 93 63 40.4% Commander Naval Surface force US AS11170 64 1 63 98.4% Bewell Net AS3464 154 92 62 40.3% Alabama SuperComputer Network AS174 483 421 62 12.8% PSINet Inc. AS3749 118 59 59 50.0% Tennessee Board of Regents AS16758 63 6 57 90.5% IKON Office Solutions AS6413 67 11 56 83.6% Southern Online Systems, Inc. AS376 132 76 56 42.4% Reseau Interordinateurs Scientiqu AS226 148 92 56 37.8% Los Nettos 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