[27313] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Feb 11 15:09:50 2000
Message-Id: <200002112000.MAA13823@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 11 Feb 2000 12:00:02 -0800
From: Tony Bates <tbates@cisco.com>
Errors-To: owner-nanog-outgoing@merit.edu
This is an auto-generated mail on Fri Feb 11 12:00:00 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A summary of the last weeks changes in terms of withdrawn and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 11Feb00
0) General Status
Table History
-------------
Date Prefixes
040200 71335
050200 71195
060200 71192
070200 71282
080200 71554
090200 71729
100200 71823
110200 71788
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: 6639
Number of ASes announcing only one prefix: 3604 (1959 cidr, 1645 classful)
Largest number of cidr routes: 704 announced by AS701
Largest number of classful routes: 980 announced by AS701
1) Gains by aggregating at the origin AS level
--- 11Feb00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 439 153 286 65.1% BCnet Backbone
AS7046 426 283 143 33.6% UUNET-CUSTOMER
AS1221 663 527 136 20.5% TELSTRA-AS
AS9269 141 25 116 82.3% Hong Kong CTI
AS9706 139 32 107 77.0% Pusan Metropolitan City Office of
AS2609 124 18 106 85.5% EUnet-TN
AS7657 286 187 99 34.6% The Internet Group Limited
AS4293 272 175 97 35.7% Internal ASN for C&W
AS2715 157 62 95 60.5% REDERIO-AS
AS7545 154 61 93 60.4% TPG Internet Pty Ltd
AS6429 205 118 87 42.4% RDC-INTERNET
AS7496 124 38 86 69.4% Power Up
AS174 559 476 83 14.8% Performance Systems International
AS705 301 220 81 26.9% ALTERNET-AS
AS816 379 302 77 20.3% UUNET Canada (ASN-UUNETCA-AS4)
AS3749 137 61 76 55.5% TECNET
AS9304 99 24 75 75.8% Hutchcity
AS577 248 175 73 29.4% Bell Backbone
AS3602 316 247 69 21.8% Sprint Canada Inc.
AS7029 113 48 65 57.5% ALLTELNET
AS4200 170 105 65 38.2% AGIS (Apex Global Information Ser
AS4740 333 275 58 17.4% Ozemail Pty Ltd (ASN-OZEMAIL)
AS1727 139 81 58 41.7% MRMS-WEST
AS7260 103 46 57 55.3% NORLIGHT
AS209 385 333 52 13.5% Qwest Communications
AS4151 97 50 47 48.5% USDA Internet Access Network
AS9557 66 21 45 68.2% Pakistan Telecommunication Compan
AS4000 96 51 45 46.9% Global IP
AS7568 59 15 44 74.6% C.S. Communications Co., Ltd.
AS684 87 45 42 48.3% Manitoba Regional Network Backbon
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
