[29302] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Jun 16 15:06:41 2000
Message-Id: <200006161900.MAA19150@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 16 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 16 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A summary of the last weeks changes in terms of withdrawn and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 16Jun00
0) General Status
Table History
-------------
Date Prefixes
090600 78901
100600 79105
110600 79003
120600 79282
130600 79244
140600 79247
150600 79514
160600 80091
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
AS Summary
----------
Number of ASes in routing system: 7668
Number of ASes announcing only one prefix: 4319 (2370 cidr, 1949 classful)
Largest number of cidr routes: 935 announced by AS701
Largest number of classful routes: 1018 announced by AS701
1) Gains by aggregating at the origin AS level
--- 16Jun00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 439 151 288 65.6% BCnet Backbone
AS1221 580 409 171 29.5% TELSTRA-AS
AS7046 504 344 160 31.7% COQUI-NET PRTC Internet
AS9269 193 46 147 76.2% Hong Kong CTI
AS9706 154 21 133 86.4% Pusan Metropolitan City Office of
AS2609 127 8 119 93.7% EUnet-TN
AS7657 269 166 103 38.3% The Internet Group Limited
AS7545 167 68 99 59.3% TPG Internet Pty Ltd
AS6429 208 116 92 44.2% RDC-INTERNET
AS9304 117 26 91 77.8% Hutchcity
AS7496 125 40 85 68.0% Power Up
AS577 286 206 80 28.0% Bell Backbone
AS4293 316 238 78 24.7% Internal ASN for C&W
AS705 339 262 77 22.7% ALTERNET-AS
AS174 522 446 76 14.6% Performance Systems International
AS1727 165 92 73 44.2% MRMS-WEST
AS9557 84 19 65 77.4% Pakistan Telecommunication Compan
AS724 208 146 62 29.8% DLA-ASNBLOCK-AS
AS3602 306 246 60 19.6% Sprint Canada Inc.
AS3749 118 59 59 50.0% TECNET
AS5106 85 27 58 68.2% AADS-COLUMBUS
AS6595 104 47 57 54.8% DODDSEUR
AS4740 333 277 56 16.8% Ozemail Pty Ltd (ASN-OZEMAIL)
AS209 395 339 56 14.2% Qwest Communications
AS7568 67 14 53 79.1% C.S. Communications Co., Ltd.
AS7018 532 479 53 10.0% AT&T WorldNet Service Backbone
AS376 120 68 52 43.3% RISQ
AS1591 173 122 51 29.5% HQASC MEDNET-ASN
AS1785 364 315 49 13.5% NYSERNet Backbone
AS701 1018 970 48 4.7% Alternet
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
