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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 Dec 3 12:00:01 PST 1999
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A summary of the last weeks changes in terms of withdrawn and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 03Dec99
0) General Status
Table History
-------------
Date Prefixes
261199 67449
271199 67441
281199 67471
291199 67421
301199 67403
011299 67418
021299 67533
031299 67454
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 64.4.64.0/19 from AS7398
*** Bogus 64.6.32.0/20 from AS13740
*** Bogus 64.6.64.0/20 from AS10726
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 6165
Number of ASes announcing only one prefix: 3283 (1798 cidr, 1485 classful)
Largest number of cidr routes: 637 announced by AS701
Largest number of classful routes: 974 announced by AS701
1) Gains by aggregating at the origin AS level
--- 03Dec99 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 383 141 242 63.2% BCnet Backbone
AS7046 386 250 136 35.2% UUNET-CUSTOMER
AS2609 126 11 115 91.3% EUnet-TN
AS1221 633 519 114 18.0% TELSTRA-AS
AS9269 130 28 102 78.5% Hong Kong CTI
AS9706 112 11 101 90.2% Pusan Metropolitan City Office of
AS7657 267 170 97 36.3% The Internet Group Limited
AS1653 129 38 91 70.5% SUNET Swedish University Network
AS7545 147 59 88 59.9% TPG Internet Pty Ltd
AS174 565 479 86 15.2% Performance Systems International
AS4293 227 142 85 37.4% Internal ASN for C&W
AS7496 123 40 83 67.5% Power Up
AS577 262 182 80 30.5% Bell Canada Backbone
AS3749 136 62 74 54.4% TECNET
AS4200 179 109 70 39.1% AGIS (Apex Global Information Ser
AS3602 314 246 68 21.7% Sprint Canada Inc.
AS816 255 196 59 23.1% UUNET Canada (ASN-UUNETCA-AS4)
AS705 137 78 59 43.1% ALTERNET-AS
AS4740 349 291 58 16.6% Ozemail Pty Ltd (ASN-OZEMAIL)
AS209 334 279 55 16.5% Qwest Communications
AS684 92 46 46 50.0% Manitoba Regional Network Backbon
AS701 974 931 43 4.4% Alternet
AS9304 58 18 40 69.0% Hutchcity
AS1 519 479 40 7.7% GTE Internetworking
AS6528 45 7 38 84.4% WORLD-LYNX
AS8013 135 99 36 26.7% PSINET-CA
AS549 205 169 36 17.6% ONet Backbone
AS4755 105 69 36 34.3% Videsh Sanchar Nigam Ltd. India
AS7568 50 15 35 70.0% C.S. Communications Co., Ltd.
AS3737 99 66 33 33.3% PenTeleData Inc. (ASN-PTD)
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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