[31080] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Sep 8 15:07:26 2000
Message-Id: <200009081900.MAA25940@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 08 Sep 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 Sep 8 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A summary of the last weeks changes in terms of withdrawn and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 08Sep00
0) General Status
Table History
-------------
Date Prefixes
010900 85543
020900 85631
030900 85544
040900 85623
050900 85693
060900 85755
070900 85753
080900 85860
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
*** Bogus 65.0.0.0/14 from AS6172
*** Bogus 65.128.0.0/14 from AS209
*** Bogus 65.132.0.0/15 from AS209
*** Bogus 65.134.0.0/17 from AS209
*** Bogus 65.134.128.0/19 from AS209
*** Bogus 65.228.9.0/24 from AS577
*** Bogus 66.4.0.0/17 from AS11686
*** Bogus 66.4.0.0/15 from AS11686
*** Bogus 66.4.128.0/17 from AS11686
*** Bogus 66.6.32.0/20 from AS701
*** Bogus 66.6.64.0/20 from AS14480
*** Bogus 66.6.96.0/20 from AS10970
*** Bogus 66.6.128.0/20 from AS3561
*** Bogus 66.6.192.0/20 from AS11282
*** Bogus 217.0.0.0/13 from AS3320
*** Bogus 217.8.0.0/20 from AS1299
*** Bogus 217.8.32.0/20 from AS3220
*** Bogus 217.8.160.0/20 from AS8246
*** Bogus 217.9.32.0/20 from AS2686
*** Bogus 217.9.96.0/20 from AS12658
*** Bogus 217.9.128.0/20 from AS12969
*** Bogus 217.9.224.0/20 from AS13124
*** Bogus 217.10.0.0/20 from AS1270
*** Bogus 217.10.64.0/20 from AS15594
*** Bogus 217.10.96.0/20 from AS5556
*** Bogus 217.10.128.0/20 from AS5378
*** Bogus 217.10.160.0/23 from AS15641
*** Bogus 217.10.162.0 from AS15641
*** Bogus 217.10.192.0 from AS12302
*** Bogus 217.11.0.0/20 from AS9034
*** Bogus 217.11.64.0/20 from AS702
*** Bogus 217.12.192.0/20 from AS15626
*** Bogus 217.13.32.0 from AS15629
*** Bogus 217.13.33.0 from AS15629
*** Bogus 217.13.34.0 from AS15629
*** Bogus 217.13.192.0/20 from AS9126
*** Bogus 217.14.64.0/20 from AS3303
*** Bogus 217.14.96.0/23 from AS13099
*** Bogus 217.14.128.0/20 from AS8851
*** Bogus 217.14.192.0/20 from AS3226
*** Bogus 217.117.117.0 from AS2007
*** Bogus 220.10.56.0 from AS3215
AS Summary
----------
Number of ASes in routing system: 8399
Number of ASes announcing only one prefix: 4770 (2647 cidr, 2123 classful)
Largest number of cidr routes: 902 announced by AS701
Largest number of classful routes: 1058 announced by AS701
1) Gains by aggregating at the origin AS level
--- 08Sep00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 425 150 275 64.7% BCnet Backbone
AS1221 618 453 165 26.7% TELSTRA-AS
AS9706 198 52 146 73.7% Pusan Metropolitan City Office of
AS9269 174 44 130 74.7% Hong Kong CTI
AS2609 128 8 120 93.8% EUnet-TN
AS7657 318 206 112 35.2% The Internet Group Limited
AS1785 466 357 109 23.4% AppliedTheory Communications
AS816 506 400 106 20.9% UUNET Canada (ASN-UUNETCA-AS4)
AS7046 370 264 106 28.6% COQUI-NET PRTC Internet
AS7545 158 55 103 65.2% TPG Internet Pty Ltd
AS9304 117 21 96 82.1% Hutchcity
AS7496 126 35 91 72.2% Power Up
AS4293 339 251 88 26.0% Internal ASN for C&W
AS6429 200 114 86 43.0% FirstCom Internet
AS4755 194 111 83 42.8% Videsh Sanchar Nigam Ltd. India
AS174 533 450 83 15.6% Performance Systems International
AS705 329 249 80 24.3% ALTERNET-AS
AS6595 133 56 77 57.9% DODDSEUR
AS3908 253 176 77 30.4% Supernet, Inc.
AS577 251 178 73 29.1% Bell Backbone
AS724 217 149 68 31.3% DLA-ASNBLOCK-AS
AS7018 575 507 68 11.8% AT&T WorldNet Service Backbone
AS4792 77 11 66 85.7% SK Telecom Co., Ltd.
AS1727 151 86 65 43.0% MRMS-WEST
AS5106 101 37 64 63.4% AADS-COLUMBUS
AS3749 122 60 62 50.8% TECNET
AS3602 297 239 58 19.5% Sprint Canada Inc.
AS701 1058 1002 56 5.3% Alternet
AS5102 75 21 54 72.0% AADS-CHAMPAIGN
AS376 123 69 54 43.9% RISQ
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
