[28958] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri May 26 15:06:58 2000
Message-Id: <200005261900.MAA00481@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 26 May 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 May 26 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A summary of the last weeks changes in terms of withdrawn and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 26May00
0) General Status
Table History
-------------
Date Prefixes
080400 75151
090400 75137
100400 75215
110400 75403
120400 75730
130400 75919
010500 76182
020500 76265
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 5027
Number of ASes announcing only one prefix: 1865 (0 cidr, 1865 classful)
Largest number of cidr routes: 0 announced by
Largest number of classful routes: 1002 announced by AS701
1) Gains by aggregating at the origin AS level
--- 26May00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 437 152 285 65.2% BCnet Backbone
AS7046 500 336 164 32.8% COQUI-NET PRTC Internet
AS9269 167 29 138 82.6% Hong Kong CTI
AS9706 153 26 127 83.0% Pusan Metropolitan City Office of
AS1221 529 408 121 22.9% TELSTRA-AS
AS2609 123 18 105 85.4% EUnet-TN
AS7545 164 66 98 59.8% TPG Internet Pty Ltd
AS7657 264 168 96 36.4% The Internet Group Limited
AS174 552 464 88 15.9% Performance Systems International
AS7496 126 39 87 69.0% Power Up
AS9304 109 24 85 78.0% Hutchcity
AS9557 100 17 83 83.0% Pakistan Telecommunication Compan
AS6429 204 121 83 40.7% RDC-INTERNET
AS577 248 172 76 30.6% Bell Backbone
AS7029 146 71 75 51.4% ALLTELNET
AS209 463 392 71 15.3% Qwest Communications
AS7018 529 463 66 12.5% AT&T WorldNet Service Backbone
AS1727 162 98 64 39.5% MRMS-WEST
AS4293 253 190 63 24.9% Internal ASN for C&W
AS724 205 143 62 30.2% DLA-ASNBLOCK-AS
AS7260 111 50 61 55.0% NORLIGHT
AS705 270 209 61 22.6% ALTERNET-AS
AS3749 121 61 60 49.6% TECNET
AS3602 307 249 58 18.9% Sprint Canada Inc.
AS6595 107 50 57 53.3% DODDSEUR
AS4740 336 279 57 17.0% Ozemail Pty Ltd (ASN-OZEMAIL)
AS5106 81 29 52 64.2% AADS-COLUMBUS
AS7568 63 18 45 71.4% C.S. Communications Co., Ltd.
AS816 308 266 42 13.6% UUNET Canada (ASN-UUNETCA-AS4)
AS6528 48 6 42 87.5% WORLD-LYNX
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
