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The Cidr Report
This is an auto-generated mail on Fri Mar 1 23:00:00 PST 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A summary of the last weeks changes in terms of withdrawn and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 amont 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 01Mar02
0) General Status
Table History
-------------
Date Prefixes
220202 106236
230202 106385
240202 106326
250202 106519
260202 106454
270202 106725
280202 106799
010302 106896
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 96.0.0.0/20 from AS3549
AS Summary
----------
Number of ASes in routing system: 12522
Number of ASes announcing only one prefix: 7615 (4306 cidr, 3309 classful)
Largest number of cidr routes: 769 announced by AS701
Largest number of classful routes: 1402 announced by AS701
1) Gains by aggregating at the origin AS level
--- 01Mar02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1402 1138 264 18.8% UUNET Technologies, Inc.
AS1221 1140 883 257 22.5% Telstra Pty Ltd
AS17557 224 96 128 57.1% Pakistan Telecom
AS16473 198 77 121 61.1% Bell South
AS7018 801 684 117 14.6% AT&T
AS6595 162 57 105 64.8% DoD Education Activity Network As
AS4151 255 150 105 41.2% USDA
AS705 307 203 104 33.9% UUNET Technologies, Inc.
AS852 432 329 103 23.8% Telus Advanced Communications
AS7046 346 244 102 29.5% UUNET Technologies, Inc.
AS577 288 192 96 33.3% Bell Advanced Communications Inc.
AS19632 94 9 85 90.4% Metropolis Intercom S.A.
AS12302 114 32 82 71.9% MobiFon S.A.
AS2048 186 105 81 43.5% State of Louisiana
AS1239 488 409 79 16.2% Sprint
AS4755 226 150 76 33.6% Videsh Sanchar Nigam Ltd. Autonom
AS4323 424 350 74 17.5% Time Warner Communications, Inc.
AS3908 333 266 67 20.1% Supernet, Inc.
AS7303 117 53 64 54.7% Telecom Argentina Stet-France Tel
AS3464 157 97 60 38.2% Alabama SuperComputer Network
AS724 218 159 59 27.1% DLA Systems Automation Center
AS10620 79 21 58 73.4% TVCABLE BOGOTA
AS16758 63 6 57 90.5% IKON Office Solutions
AS226 145 89 56 38.6% Los Nettos
AS1 473 417 56 11.8% BBN Planet
AS19834 63 8 55 87.3% NetForce, Inc.
AS9051 75 22 53 70.7% INCONET Autonomous System
AS703 269 217 52 19.3% UUNET Technologies, Inc.
AS702 619 567 52 8.4% UUNET Technologies, Inc.
AS2149 301 249 52 17.3% Performance Systems, Inc.
Total 54098 42109 11989 22.2%
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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