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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 Oct 6 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A summary of the last weeks changes in terms of withdrawn and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 06Oct00
0) General Status
Table History
-------------
Date Prefixes
290900 88909
300900 88195
011000 88325
021000 88317
031000 88456
041000 88428
051000 88525
061000 88980
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
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Number of ASes in routing system: 8668
Number of ASes announcing only one prefix: 4969 (2769 cidr, 2200 classful)
Largest number of cidr routes: 907 announced by AS701
Largest number of classful routes: 1086 announced by AS701
1) Gains by aggregating at the origin AS level
--- 06Oct00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 431 153 278 64.5% BCnet Backbone
AS1785 592 379 213 36.0% AppliedTheory Communications
AS1221 621 454 167 26.9% TELSTRA-AS
AS816 579 434 145 25.0% UUNET Canada (ASN-UUNETCA-AS4)
AS9269 177 47 130 73.4% Hong Kong CTI
AS7046 405 283 122 30.1% COQUI-NET PRTC Internet
AS2609 128 8 120 93.8% EUnet-TN
AS9304 125 15 110 88.0% Hutchcity
AS4755 224 116 108 48.2% Videsh Sanchar Nigam Ltd. India
AS7657 324 220 104 32.1% The Internet Group Limited
AS7545 159 55 104 65.4% TPG Internet Pty Ltd
AS705 363 263 100 27.5% ALTERNET-AS
AS9706 103 9 94 91.3% Pusan Metropolitan City Office of
AS6429 210 116 94 44.8% FirstCom Internet
AS7496 126 35 91 72.2% Power Up
AS8013 492 406 86 17.5% PSINET-CA
AS174 539 453 86 16.0% Performance Systems International
AS4293 340 257 83 24.4% Internal ASN for C&W
AS13999 91 9 82 90.1% UNKNOWN
AS6595 138 57 81 58.7% DODDSEUR
AS3908 256 177 79 30.9% Supernet, Inc.
AS577 248 175 73 29.4% Bell Backbone
AS8895 107 37 70 65.4% Saudi Arabia AS
AS724 223 156 67 30.0% DLA-ASNBLOCK-AS
AS7018 579 512 67 11.6% AT&T WorldNet Service Backbone
AS701 1086 1021 65 6.0% Alternet
AS5106 99 36 63 63.6% AADS-COLUMBUS
AS1727 139 76 63 45.3% MRMS-WEST
AS3749 119 57 62 52.1% TECNET
AS226 170 108 62 36.5% USC/Information Sciences Institut
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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