[27899] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Mar 24 15:04:27 2000
Message-Id: <200003242000.MAA14848@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 24 Mar 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 Mar 24 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A summary of the last weeks changes in terms of withdrawn and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 24Mar00
0) General Status
Table History
-------------
Date Prefixes
290200 73317
010300 73424
020300 73040
140300 72929
210300 73882
220300 74110
230300 73692
240300 74204
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 103.10.0.0/16 from AS209
*** Bogus 172.16.250.0/24 from AS8642
*** Bogus 219.91.160.0/22 from AS7742
*** Bogus 219.91.164.0/23 from AS7742
AS Summary
----------
Number of ASes in routing system: 7017
Number of ASes announcing only one prefix: 3864 (2101 cidr, 1763 classful)
Largest number of cidr routes: 919 announced by AS701
Largest number of classful routes: 1034 announced by AS701
1) Gains by aggregating at the origin AS level
--- 24Mar00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 436 156 280 64.2% BCnet Backbone
AS1221 691 532 159 23.0% TELSTRA-AS
AS7046 452 307 145 32.1% COQUI-NET PRTC Internet
AS9269 159 27 132 83.0% Hong Kong CTI
AS9706 151 22 129 85.4% Pusan Metropolitan City Office of
AS2609 121 23 98 81.0% EUnet-TN
AS7657 269 174 95 35.3% The Internet Group Limited
AS7545 154 61 93 60.4% TPG Internet Pty Ltd
AS705 304 215 89 29.3% ALTERNET-AS
AS174 558 470 88 15.8% Performance Systems International
AS7496 124 39 85 68.5% Power Up
AS4293 285 200 85 29.8% Internal ASN for C&W
AS6429 202 119 83 41.1% RDC-INTERNET
AS9304 107 27 80 74.8% Hutchcity
AS577 248 172 76 30.6% Bell Backbone
AS9557 91 23 68 74.7% Pakistan Telecommunication Compan
AS209 425 359 66 15.5% Qwest Communications
AS3602 306 242 64 20.9% Sprint Canada Inc.
AS3749 121 60 61 50.4% TECNET
AS1727 151 91 60 39.7% MRMS-WEST
AS7260 108 50 58 53.7% NORLIGHT
AS4740 335 277 58 17.3% Ozemail Pty Ltd (ASN-OZEMAIL)
AS701 1034 977 57 5.5% Alternet
AS724 194 138 56 28.9% DLA-ASNBLOCK-AS
AS816 327 272 55 16.8% UUNET Canada (ASN-UUNETCA-AS4)
AS7029 97 46 51 52.6% ALLTELNET
AS4200 140 92 48 34.3% AGIS (Apex Global Information Ser
AS6595 88 42 46 52.3% DODDSEUR
AS7568 66 21 45 68.2% C.S. Communications Co., Ltd.
AS684 85 40 45 52.9% 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
