[29085] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Jun 9 15:06:51 2000
Message-Id: <200006091900.MAA05811@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 09 Jun 2000 12:00:02 -0700
From: Tony Bates <tbates@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
This is an auto-generated mail on Fri Jun 9 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A summary of the last weeks changes in terms of withdrawn and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.
------------------------------------------------------------------------------
CIDR REPORT for 09Jun00
0) General Status
Table History
-------------
Date Prefixes
110400 75403
120400 75730
130400 75919
010500 76182
020500 76265
070600 78743
080600 78857
090600 78901
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.56.64.0/21 from AS2941
*** Bogus 109.177.9.0/24 from AS1785
AS Summary
----------
Number of ASes in routing system: 7613
Number of ASes announcing only one prefix: 4265 (2328 cidr, 1937 classful)
Largest number of cidr routes: 907 announced by AS701
Largest number of classful routes: 1020 announced by AS701
1) Gains by aggregating at the origin AS level
--- 09Jun00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 438 150 288 65.8% BCnet Backbone
AS9269 203 28 175 86.2% Hong Kong CTI
AS1221 578 405 173 29.9% TELSTRA-AS
AS7046 511 347 164 32.1% COQUI-NET PRTC Internet
AS9706 152 28 124 81.6% Pusan Metropolitan City Office of
AS2609 127 8 119 93.7% EUnet-TN
AS7545 167 68 99 59.3% TPG Internet Pty Ltd
AS6429 209 117 92 44.0% RDC-INTERNET
AS174 568 477 91 16.0% Performance Systems International
AS9304 115 28 87 75.7% Hutchcity
AS7496 127 40 87 68.5% Power Up
AS7657 250 165 85 34.0% The Internet Group Limited
AS705 339 262 77 22.7% ALTERNET-AS
AS4293 312 237 75 24.0% Internal ASN for C&W
AS577 250 178 72 28.8% Bell Backbone
AS724 216 148 68 31.5% DLA-ASNBLOCK-AS
AS9557 84 19 65 77.4% Pakistan Telecommunication Compan
AS1727 140 79 61 43.6% MRMS-WEST
AS3602 303 243 60 19.8% Sprint Canada Inc.
AS3749 118 59 59 50.0% TECNET
AS6595 104 47 57 54.8% DODDSEUR
AS209 431 374 57 13.2% Qwest Communications
AS4740 329 274 55 16.7% Ozemail Pty Ltd (ASN-OZEMAIL)
AS7018 530 477 53 10.0% AT&T WorldNet Service Backbone
AS7568 66 14 52 78.8% C.S. Communications Co., Ltd.
AS701 1020 968 52 5.1% Alternet
AS6528 48 6 42 87.5% WORLD-LYNX
AS6499 97 56 41 42.3% Brooks Fiber Properties, Inc.
AS6629 67 27 40 59.7% NOAA-AS
AS4755 128 88 40 31.2% Videsh Sanchar Nigam Ltd. India
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
