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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 2 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A summary of the last weeks changes in terms of withdrawn and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 02Mar01
0) General Status
Table History
-------------
Date Prefixes
230201 96158
240201 96768
250201 96770
260201 97876
270201 97797
280201 98047
010301 97829
020301 97761
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
*** Bogus 103.22.7.0/24 from AS9768
AS Summary
----------
Number of ASes in routing system: 10115
Number of ASes announcing only one prefix: 5957 (3388 cidr, 2569 classful)
Largest number of cidr routes: 957 announced by AS701
Largest number of classful routes: 1715 announced by AS701
1) Gains by aggregating at the origin AS level
--- 02Mar01 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS1221 1584 1187 397 25.1% Telstra Pty Ltd
AS701 1715 1501 214 12.5% UUNET Technologies, Inc.
AS8006 145 19 126 86.9% Systems & Software Consortium, In
AS7545 190 70 120 63.2% TPG Internet Pty Ltd
AS9269 161 52 109 67.7% Internet service Provider in Hong
AS6429 213 108 105 49.3% RdC Internet
AS6595 165 63 102 61.8% DoD Education Activity Network As
AS13999 109 7 102 93.6% Mega Cable S.A. de C.V.
AS4293 384 291 93 24.2% Cable & Wireless USA
AS271 197 107 90 45.7% University of British Columbia
AS8013 330 243 87 26.4% PSINet Ltd. Canada
AS705 327 240 87 26.6% UUNET Technologies, Inc.
AS4755 213 130 83 39.0% Videsh Sanchar Nigam Ltd. Autonom
AS4151 219 142 77 35.2% USDA
AS1942 136 64 72 52.9% FR-CICG-GRENOBLE
AS7018 642 571 71 11.1% AT&T
AS1727 176 105 71 40.3% Commander Naval Surface force US
AS577 238 168 70 29.4% Bell Advanced Communications Inc.
AS174 494 426 68 13.8% PSINet Inc.
AS9498 87 20 67 77.0% BHARTI BT INTERNET LTD.
AS724 215 149 66 30.7% DLA Systems Automation Center
AS5106 101 37 64 63.4% Ameritech Advanced Data Services,
AS11170 64 1 63 98.4% Bewell Net
AS7046 312 250 62 19.9% UUNET Technologies, Inc.
AS3749 119 58 61 51.3% Tennessee Board of Regents
AS3464 153 93 60 39.2% Alabama SuperComputer Network
AS226 154 94 60 39.0% Los Nettos
AS7657 166 109 57 34.3% The Internet Group Limited
AS16758 63 6 57 90.5% IKON Office Solutions
AS6413 67 11 56 83.6% Southern Online Systems, Inc.
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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