The Cidr Report
Tony Bates
tbates at cisco.com
Fri Jan 12 20:00:04 UTC 2001
This is an auto-generated mail on Fri Jan 12 12:00:00 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A summary of the last weeks changes in terms of withdrawn and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.
------------------------------------------------------------------------------
CIDR REPORT for 12Jan01
0) General Status
Table History
-------------
Date Prefixes
050101 95475
060101 95482
070101 95512
080101 95490
090101 95422
100101 95551
110101 99200
120101 96318
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: 7237
Number of ASes announcing only one prefix: 3821 (1389 cidr, 2432 classful)
Largest number of cidr routes: 637 announced by AS701
Largest number of classful routes: 1652 announced by AS1221
1) Gains by aggregating at the origin AS level
--- 12Jan01 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS10501 2 1 1 50.0% PacLink
AS10390 2 1 1 50.0% TELECHECK
AS10240 2 1 1 50.0% MOTLEYFOOL
AS10173 2 1 1 50.0% KSNET.Inc
AS9995 1 1 0 0.0% Japan Network Information Center
AS9991 1 1 0 0.0% Japan Network Information Center
AS9983 1 1 0 0.0% Australian Bureau of Statistics.
AS9982 1 1 0 0.0% PAICHAI UNIVERSITY
AS9979 1 1 0 0.0% KOREA EXCHANGE BANK
AS9978 1 1 0 0.0% The University of Seoul
AS9974 1 1 0 0.0% KOREA SECURITIES COMPUTER CORP. B
AS9973 1 1 0 0.0% KEB Futures Co.
AS9968 1 1 0 0.0% Kyobo Life Insurance
AS9962 1 1 0 0.0% Sunchon National University
AS9960 1 1 0 0.0% NEW C&C CO.,LTD.
AS9954 1 1 0 0.0% Kunsan National University
AS9953 1 1 0 0.0% Hyundai Eng. & Const. Co., Ltd.
AS9951 1 1 0 0.0% D3C Net
AS9950 1 1 0 0.0% INT Co.,Ltd.
AS9935 1 1 0 0.0% AGNS-Customer-KW
AS9928 1 1 0 0.0% Crystal Internet
AS9927 1 1 0 0.0% A Multihomed ISP Company
AS9912 1 1 0 0.0% Quality Internet Services
AS9879 1 1 0 0.0% OGILVY ASIA/PACIFIC
AS9877 1 1 0 0.0% Ngee Ann Polytechnic Computer Cen
AS9875 1 1 0 0.0% PT. Pasifik Satelit Nusantara
AS9871 1 1 0 0.0% JC Entertainment Co.
AS9868 1 1 0 0.0% Catholic University of TAEGU HYOS
AS9866 1 1 0 0.0% LGCAPITAL
AS9862 1 1 0 0.0% YES24 CO. LTD
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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