[27414] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Feb 18 15:04:12 2000
Message-Id: <200002182000.MAA19698@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 18 Feb 2000 12:00:03 -0800
From: Tony Bates <tbates@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
This is an auto-generated mail on Fri Feb 18 12:00:01 PST 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A summary of the last weeks changes in terms of withdrawn and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 18Feb00
0) General Status
Table History
-------------
Date Prefixes
110200 71788
120200 71855
130200 71752
140200 71950
150200 73959
160200 72163
170200 72085
180200 72321
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 6713
Number of ASes announcing only one prefix: 3650 (1988 cidr, 1662 classful)
Largest number of cidr routes: 766 announced by AS701
Largest number of classful routes: 1002 announced by AS701
1) Gains by aggregating at the origin AS level
--- 18Feb00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 437 154 283 64.8% BCnet Backbone
AS7046 453 293 160 35.3% UUNET-CUSTOMER
AS1221 658 522 136 20.7% TELSTRA-AS
AS9269 147 24 123 83.7% Hong Kong CTI
AS9706 147 30 117 79.6% Pusan Metropolitan City Office of
AS2609 123 22 101 82.1% EUnet-TN
AS7657 282 183 99 35.1% The Internet Group Limited
AS4293 273 176 97 35.5% Internal ASN for C&W
AS7545 153 60 93 60.8% TPG Internet Pty Ltd
AS2715 153 61 92 60.1% REDERIO-AS
AS6429 205 118 87 42.4% RDC-INTERNET
AS7496 122 39 83 68.0% Power Up
AS174 557 474 83 14.9% Performance Systems International
AS705 297 216 81 27.3% ALTERNET-AS
AS816 392 314 78 19.9% UUNET Canada (ASN-UUNETCA-AS4)
AS3749 137 61 76 55.5% TECNET
AS9304 99 24 75 75.8% Hutchcity
AS577 246 173 73 29.7% Bell Backbone
AS3602 325 252 73 22.5% Sprint Canada Inc.
AS4200 168 105 63 37.5% AGIS (Apex Global Information Ser
AS7029 111 50 61 55.0% ALLTELNET
AS4740 338 280 58 17.2% Ozemail Pty Ltd (ASN-OZEMAIL)
AS7260 103 46 57 55.3% NORLIGHT
AS1727 134 79 55 41.0% MRMS-WEST
AS209 384 333 51 13.3% Qwest Communications
AS4151 100 50 50 50.0% USDA Internet Access Network
AS701 1002 956 46 4.6% Alternet
AS9557 66 21 45 68.2% Pakistan Telecommunication Compan
AS2652 126 81 45 35.7% Government of Canada Telecommunic
AS7568 60 16 44 73.3% C.S. Communications Co., Ltd.
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
