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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical The Cidr Report
This is an auto-generated mail on Fri Mar 16 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.
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A summary of the last weeks changes in terms of withdrawn and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.
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CIDR REPORT for 16Mar01
0) General Status
Table History
-------------
Date Prefixes
090301 98107
100301 97522
110301 97508
120301 97530
130301 97798
140301 98013
150301 98259
160301 97900
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
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Number of ASes in routing system: 10240
Number of ASes announcing only one prefix: 6004 (3405 cidr, 2599 classful)
Largest number of cidr routes: 957 announced by AS701
Largest number of classful routes: 1594 announced by AS1221
1) Gains by aggregating at the origin AS level
--- 16Mar01 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1594 1194 400 25.1% Telstra Pty Ltd
AS701 1417 1256 161 11.4% UUNET Technologies, Inc.
AS6499 170 60 110 64.7% Brooks Fiber Properties, Inc.
AS9269 162 53 109 67.3% Internet service Provider in Hong
AS6429 212 107 105 49.5% RdC Internet
AS6595 161 62 99 61.5% DoD Education Activity Network As
AS7545 169 76 93 55.0% TPG Internet Pty Ltd
AS705 329 237 92 28.0% UUNET Technologies, Inc.
AS4293 376 285 91 24.2% Cable & Wireless USA
AS13999 102 11 91 89.2% Mega Cable S.A. de C.V.
AS8013 326 242 84 25.8% PSINet Ltd. Canada
AS7018 654 575 79 12.1% AT&T
AS4151 226 148 78 34.5% USDA
AS4755 207 133 74 35.7% Videsh Sanchar Nigam Ltd. Autonom
AS577 239 169 70 29.3% Bell Advanced Communications Inc.
AS724 222 155 67 30.2% DLA Systems Automation Center
AS174 495 428 67 13.5% PSINet Inc.
AS9498 83 18 65 78.3% BHARTI BT INTERNET LTD.
AS5106 101 37 64 63.4% Ameritech Advanced Data Services,
AS11170 64 1 63 98.4% Bewell Net
AS3749 120 59 61 50.8% Tennessee Board of Regents
AS3464 153 92 61 39.9% Alabama SuperComputer Network
AS7657 163 103 60 36.8% The Internet Group Limited
AS16758 63 6 57 90.5% IKON Office Solutions
AS6413 67 11 56 83.6% Southern Online Systems, Inc.
AS4323 233 177 56 24.0% Time Warner Communications, Inc.
AS376 133 77 56 42.1% Reseau Interordinateurs Scientiqu
AS226 149 93 56 37.6% Los Nettos
AS1 605 550 55 9.1% BBN Planet
AS6471 99 46 53 53.5% ENTEL CHILE S.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
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