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The Cidr Report
This is an auto-generated mail on Fri Jun 7 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A summary of the last weeks changes in terms of withdrawn and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 07Jun02
0) General Status
Table History
-------------
Date Prefixes
310502 110978
010602 110824
020602 110920
030602 110922
040602 111222
050602 111490
060602 111589
070602 111313
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 192.0.2.0 from AS1103
AS Summary
----------
Number of ASes in routing system: 13089
Number of ASes announcing only one prefix: 7961 (4467 cidr, 3494 classful)
Largest number of cidr routes: 646 announced by AS701
Largest number of classful routes: 1359 announced by AS701
1) Gains by aggregating at the origin AS level
--- 07Jun02 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS701 1359 1091 268 19.7% UUNET Technologies, Inc.
AS1221 1089 843 246 22.6% Telstra Pty Ltd
AS17557 292 104 188 64.4% Pakistan Telecom
AS852 590 431 159 26.9% Telus Advanced Communications
AS7018 818 687 131 16.0% AT&T
AS6595 177 57 120 67.8% DoD Education Activity Network As
AS16473 194 76 118 60.8% Bell South
AS705 304 204 100 32.9% UUNET Technologies, Inc.
AS19632 98 4 94 95.9% Metropolis Intercom S.A.
AS4151 234 141 93 39.7% USDA
AS12302 120 32 88 73.3% MobiFon S.A.
AS7303 150 65 85 56.7% Telecom Argentina Stet-France Tel
AS7046 331 246 85 25.7% UUNET Technologies, Inc.
AS16814 104 19 85 81.7% NSS, S.A.
AS1239 506 421 85 16.8% Sprint
AS2048 181 104 77 42.5% State of Louisiana
AS577 267 194 73 27.3% Bell Advanced Communications Inc.
AS4755 189 118 71 37.6% Videsh Sanchar Nigam Ltd. Autonom
AS724 230 161 69 30.0% DLA Systems Automation Center
AS4323 408 339 69 16.9% Time Warner Communications, Inc.
AS226 154 91 63 40.9% Los Nettos
AS3464 166 105 61 36.7% Alabama SuperComputer Network
AS19834 64 4 60 93.8% NetForce, Inc.
AS10620 83 23 60 72.3% TVCABLE BOGOTA
AS1 450 392 58 12.9% GENUITY
AS3908 308 251 57 18.5% Supernet, Inc.
AS16758 63 6 57 90.5% IKON Office Solutions
AS209 314 258 56 17.8% Qwest
AS9051 79 27 52 65.8% INCONET Autonomous System
AS6535 62 15 47 75.8% Chilesat Servicios Empresariales
Total 55269 42687 12582 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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