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The Cidr Report
This is an auto-generated mail on Fri Jun 14 23:00:00 PDT 2002
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.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
the regional version of this report.
NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
list of autonomous system number to name mappings as used by the CIDR-Report.
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A summary of the last weeks changes in terms of withdrawn and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 amount of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to GX Networks for giving me access to their routing tables once a
day.
Please send any comments about this report directly to CIDR Report <cidr-report at cisco.com>.
------------------------------------------------------------------------------
CIDR REPORT for 14Jun02
0) General Status
Table History
-------------
Date Prefixes
070602 111313
080602 111271
090602 111270
100602 111336
110602 111462
120602 111353
130602 111438
140602 111440
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: 13109
Number of ASes announcing only one prefix: 7989 (4485 cidr, 3504 classful)
Largest number of cidr routes: 646 announced by AS701
Largest number of classful routes: 1351 announced by AS701
1) Gains by aggregating at the origin AS level
--- 14Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1351 1084 267 19.8% UUNET Technologies, Inc.
AS1221 1090 845 245 22.5% Telstra Pty Ltd
AS17557 299 113 186 62.2% Pakistan Telecom
AS852 569 415 154 27.1% Telus Advanced Communications
AS7018 815 684 131 16.1% AT&T
AS6595 181 58 123 68.0% DoD Education Activity Network As
AS16473 194 76 118 60.8% Bell South
AS705 305 205 100 32.8% UUNET Technologies, Inc.
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS4151 233 140 93 39.9% USDA
AS12302 120 27 93 77.5% MobiFon S.A.
AS7303 151 65 86 57.0% Telecom Argentina Stet-France Tel
AS16814 104 19 85 81.7% NSS, S.A.
AS226 176 92 84 47.7% Los Nettos
AS1239 501 417 84 16.8% Sprint
AS7046 319 236 83 26.0% UUNET Technologies, Inc.
AS4755 203 130 73 36.0% Videsh Sanchar Nigam Ltd. Autonom
AS2048 180 107 73 40.6% State of Louisiana
AS577 261 189 72 27.6% Bell Advanced Communications Inc.
AS724 230 161 69 30.0% DLA Systems Automation Center
AS4323 409 340 69 16.9% Time Warner Communications, Inc.
AS3464 165 105 60 36.4% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS209 317 260 57 18.0% Qwest
AS16758 63 6 57 90.5% IKON Office Solutions
AS3908 304 248 56 18.4% Supernet, Inc.
AS1 446 390 56 12.6% GENUITY
AS9051 81 26 55 67.9% INCONET Autonomous System
AS6535 69 16 53 76.8% Chilesat Servicios Empresariales
Total 55229 42614 12615 22.8%
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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