[27951] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Mar 31 15:03:55 2000
Message-Id: <200003312000.MAA12724@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 31 Mar 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 Mar 31 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A summary of the last weeks changes in terms of withdrawn and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 31Mar00
0) General Status
Table History
-------------
Date Prefixes
240300 74204
250300 74230
260300 74283
270300 74264
280300 74374
290300 74495
300300 74917
310300 74847
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.45.0.0/19 from AS10585
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 7078
Number of ASes announcing only one prefix: 3919 (2134 cidr, 1785 classful)
Largest number of cidr routes: 972 announced by AS701
Largest number of classful routes: 1040 announced by AS701
1) Gains by aggregating at the origin AS level
--- 31Mar00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 437 153 284 65.0% BCnet Backbone
AS1221 699 535 164 23.5% TELSTRA-AS
AS7046 460 315 145 31.5% COQUI-NET PRTC Internet
AS9269 159 27 132 83.0% Hong Kong CTI
AS9706 151 25 126 83.4% Pusan Metropolitan City Office of
AS2609 123 22 101 82.1% EUnet-TN
AS7657 266 170 96 36.1% The Internet Group Limited
AS7545 155 62 93 60.0% TPG Internet Pty Ltd
AS705 307 217 90 29.3% ALTERNET-AS
AS174 566 477 89 15.7% Performance Systems International
AS7496 123 38 85 69.1% Power Up
AS4293 290 205 85 29.3% Internal ASN for C&W
AS7029 160 78 82 51.2% ALLTELNET
AS6429 202 121 81 40.1% RDC-INTERNET
AS9304 107 27 80 74.8% Hutchcity
AS577 248 172 76 30.6% Bell Backbone
AS209 437 369 68 15.6% Qwest Communications
AS9557 80 15 65 81.2% Pakistan Telecommunication Compan
AS3602 299 237 62 20.7% Sprint Canada Inc.
AS701 1040 981 59 5.7% Alternet
AS3749 120 61 59 49.2% TECNET
AS7260 108 50 58 53.7% NORLIGHT
AS4740 339 281 58 17.1% Ozemail Pty Ltd (ASN-OZEMAIL)
AS1727 139 81 58 41.7% MRMS-WEST
AS724 196 140 56 28.6% DLA-ASNBLOCK-AS
AS816 329 275 54 16.4% UUNET Canada (ASN-UUNETCA-AS4)
AS7568 66 19 47 71.2% C.S. Communications Co., Ltd.
AS6595 88 42 46 52.3% DODDSEUR
AS684 85 40 45 52.9% Manitoba Regional Network Backbon
AS5106 73 29 44 60.3% AADS-COLUMBUS
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
