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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 Jul 7 12:00:00 PDT 2000
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A summary of the last weeks changes in terms of withdrawn and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 07Jul00
0) General Status
Table History
-------------
Date Prefixes
300600 80928
010700 80965
020700 80894
030700 80985
040700 81051
050700 81066
060700 81438
070700 81549
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.56.64.0/21 from AS2941
AS Summary
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Number of ASes in routing system: 7835
Number of ASes announcing only one prefix: 4407 (2427 cidr, 1980 classful)
Largest number of cidr routes: 975 announced by AS701
Largest number of classful routes: 1061 announced by AS701
1) Gains by aggregating at the origin AS level
--- 07Jul00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 436 149 287 65.8% BCnet Backbone
AS1221 626 446 180 28.8% TELSTRA-AS
AS7046 535 365 170 31.8% COQUI-NET PRTC Internet
AS9269 187 45 142 75.9% Hong Kong CTI
AS9706 153 21 132 86.3% Pusan Metropolitan City Office of
AS705 569 448 121 21.3% ALTERNET-AS
AS7657 295 190 105 35.6% The Internet Group Limited
AS2609 125 20 105 84.0% EUnet-TN
AS9304 122 18 104 85.2% Hutchcity
AS7545 154 56 98 63.6% TPG Internet Pty Ltd
AS6429 211 116 95 45.0% RDC-INTERNET
AS577 267 180 87 32.6% Bell Backbone
AS174 556 469 87 15.6% Performance Systems International
AS7496 128 43 85 66.4% Power Up
AS4293 325 241 84 25.8% Internal ASN for C&W
AS724 228 157 71 31.1% DLA-ASNBLOCK-AS
AS3908 273 204 69 25.3% Supernet, Inc.
AS1727 159 90 69 43.4% MRMS-WEST
AS701 1061 996 65 6.1% Alternet
AS6595 110 50 60 54.5% DODDSEUR
AS5106 89 31 58 65.2% AADS-COLUMBUS
AS3749 116 58 58 50.0% TECNET
AS7568 81 24 57 70.4% C.S. Communications Co., Ltd.
AS3602 301 244 57 18.9% Sprint Canada Inc.
AS4740 328 273 55 16.8% Ozemail Pty Ltd (ASN-OZEMAIL)
AS7018 541 488 53 9.8% AT&T WorldNet Service Backbone
AS1785 360 311 49 13.6% NYSERNet Backbone
AS209 259 211 48 18.5% Qwest Communications
AS9557 61 16 45 73.8% Pakistan Telecommunication Compan
AS14562 80 35 45 56.2% UNKNOWN
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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