This is an auto-generated mail on Fri Dec 25 12:00:00 PST 1998 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 25Dec98 0) General Status Table History ------------- Date Prefixes 181298 54712 191298 54745 201298 54631 211298 54716 221298 54845 231298 54811 241298 54847 251298 54839 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: 4371 Number of ASes announcing only one prefix: 2158 (1151 cidr, 1007 classful) Largest number of cidr routes: 355 announced by AS3561 Largest number of classful routes: 1003 announced by AS701  1) Gains by aggregating at the origin AS level --- 25Dec98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 389 144 245 63.0% BCnet Backbone AS2493 325 178 147 45.2% iSTAR Internet, Inc. AS3749 222 77 145 65.3% TECNET AS701 1003 863 140 14.0% Alternet AS1785 541 403 138 25.5% NYSERNet Backbone AS174 667 544 123 18.4% Performance Systems International AS5668 133 36 97 72.9% Century Telephone Inc. AS4200 189 96 93 49.2% AGIS (Apex Global Information Ser AS4755 142 62 80 56.3% Videsh Sanchar Nigam Ltd. India AS1267 109 30 79 72.5% IUNET-AS AS4293 207 135 72 34.8% IMCI AS549 221 155 66 29.9% ONet Backbone AS4740 383 321 62 16.2% Ozemail Pty Ltd (ASN-OZEMAIL) AS1221 390 332 58 14.9% AARNET-AS AS8517 129 72 57 44.2% UNKNOWN AS7657 141 86 55 39.0% The Internet Group Limited AS7046 245 193 52 21.2% UUNET-CUSTOMER AS7545 115 65 50 43.5% TPG Internet Pty Ltd AS1239 534 485 49 9.2% SprintLink Backbone AS72 88 40 48 54.5% Schlumberger Information Network AS7496 73 28 45 61.6% Power Up AS577 211 166 45 21.3% Bell Canada Backbone AS10928 93 50 43 46.2% UNKNOWN AS852 174 132 42 24.1% AGT Advance Communication AS3221 84 42 42 50.0% RIPE-ASNBLOCK4 AS719 444 405 39 8.8% LANLINK-AS AS803 71 35 36 50.7% SaskNet Backbone AS7122 111 76 35 31.5% MTS ADVANCED Network Policy AS2707 65 32 33 50.8% WEC AS6897 46 14 32 69.6% RIPE-ASNBLOCK6 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