[29628] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Jun 30 15:06:55 2000
Message-Id: <200006301900.MAA26488@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 30 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 30 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A summary of the last weeks changes in terms of withdrawn and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 30Jun00
0) General Status
Table History
-------------
Date Prefixes
230600 80236
240600 80187
250600 80366
260600 80526
270600 80814
280600 80884
290600 80973
300600 80928
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: 7777
Number of ASes announcing only one prefix: 4376 (2400 cidr, 1976 classful)
Largest number of cidr routes: 964 announced by AS701
Largest number of classful routes: 1070 announced by AS701
1) Gains by aggregating at the origin AS level
--- 30Jun00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 436 149 287 65.8% BCnet Backbone
AS1221 645 445 200 31.0% TELSTRA-AS
AS7046 534 360 174 32.6% COQUI-NET PRTC Internet
AS9269 183 55 128 69.9% Hong Kong CTI
AS9706 152 26 126 82.9% Pusan Metropolitan City Office of
AS2609 127 12 115 90.6% EUnet-TN
AS9304 122 18 104 85.2% Hutchcity
AS7657 293 190 103 35.2% The Internet Group Limited
AS7545 153 55 98 64.1% TPG Internet Pty Ltd
AS6429 210 118 92 43.8% RDC-INTERNET
AS174 563 471 92 16.3% Performance Systems International
AS7496 127 42 85 66.9% Power Up
AS4293 328 243 85 25.9% Internal ASN for C&W
AS705 343 263 80 23.3% ALTERNET-AS
AS701 1070 998 72 6.7% Alternet
AS577 250 178 72 28.8% Bell Backbone
AS724 229 158 71 31.0% DLA-ASNBLOCK-AS
AS3908 274 205 69 25.2% Supernet, Inc.
AS1727 152 83 69 45.4% MRMS-WEST
AS9557 95 28 67 70.5% Pakistan Telecommunication Compan
AS3602 304 245 59 19.4% Sprint Canada Inc.
AS6595 108 50 58 53.7% DODDSEUR
AS5106 88 30 58 65.9% AADS-COLUMBUS
AS7568 81 24 57 70.4% C.S. Communications Co., Ltd.
AS4740 331 275 56 16.9% Ozemail Pty Ltd (ASN-OZEMAIL)
AS3749 112 56 56 50.0% TECNET
AS7018 545 492 53 9.7% AT&T WorldNet Service Backbone
AS1785 361 312 49 13.6% NYSERNet Backbone
AS209 257 209 48 18.7% Qwest Communications
AS14562 80 35 45 56.2% UNKNOWN
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
