[31186] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Sep 15 15:08:33 2000
Message-Id: <200009151900.MAA08521@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 15 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 15 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A summary of the last weeks changes in terms of withdrawn and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 15Sep00
0) General Status
Table History
-------------
Date Prefixes
080900 85860
090900 85892
100900 85759
110900 86110
120900 86221
130900 87010
140900 86417
150900 87093
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 66.1.16.0/20 from AS3847
*** 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 66.7.0.0/19 from AS16484
*** Bogus 66.7.64.0/19 from AS14618
*** Bogus 66.9.0.0/19 from AS6221
*** Bogus 66.16.0.0/17 from AS14914
*** Bogus 108.122.0.0/24 from AS9847
*** 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 217.8.224.0/20 from AS15560
*** Bogus 217.9.32.0/20 from AS15563
*** Bogus 217.9.36.0/22 from AS15563
*** Bogus 217.9.64.0/20 from AS3269
*** Bogus 217.9.64.0/20 from AS15671
*** Bogus 217.9.128.0/20 from AS12969
*** Bogus 217.9.160.0 from AS8308
*** 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 217.11.160.0/20 from AS3259
*** Bogus 217.12.0.0/20 from AS15635
*** Bogus 217.12.192.0/20 from AS15626
*** Bogus 217.12.224.0/20 from AS15438
*** Bogus 217.13.0.0/20 from AS15659
*** 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 217.13.224.0/20 from AS3220
*** 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 217.15.0.0/20 from AS13064
*** Bogus 217.15.128.0/20 from AS13118
*** Bogus 217.16.96.0/20 from AS15687
*** Bogus 217.117.117.0 from AS2007
*** Bogus 220.10.56.0 from AS3215
AS Summary
----------
Number of ASes in routing system: 8464
Number of ASes announcing only one prefix: 4814 (2667 cidr, 2147 classful)
Largest number of cidr routes: 898 announced by AS701
Largest number of classful routes: 1070 announced by AS701
1) Gains by aggregating at the origin AS level
--- 15Sep00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 433 153 280 64.7% BCNET-AS
AS9706 258 96 162 62.8% Pusan Metropolitan City Office of
AS1221 609 448 161 26.4% TELSTRA-AS
AS816 575 435 140 24.3% UUNET Canada (ASN-UUNETCA-AS4)
AS9269 173 47 126 72.8% Hong Kong CTI
AS2609 128 8 120 93.8% EUnet-TN
AS7657 318 207 111 34.9% The Internet Group Limited
AS7046 370 265 105 28.4% COQUI-NET PRTC Internet
AS7545 158 55 103 65.2% TPG Internet Pty Ltd
AS705 365 263 102 27.9% ALTERNET-AS
AS9304 117 21 96 82.1% Hutchcity
AS6429 208 114 94 45.2% FirstCom Internet
AS7496 126 35 91 72.2% Power Up
AS4755 209 119 90 43.1% Videsh Sanchar Nigam Ltd. India
AS174 533 450 83 15.6% Performance Systems International
AS4293 329 249 80 24.3% Internal ASN for C&W
AS3908 257 177 80 31.1% Supernet, Inc.
AS6595 133 56 77 57.9% DODDSEUR
AS1727 167 91 76 45.5% MRMS-WEST
AS1785 386 311 75 19.4% AppliedTheory Communications
AS577 251 178 73 29.1% CA-NET-AS
AS3352 253 180 73 28.9% Ibernet, Internet Access Network
AS724 225 154 71 31.6% DLA-ASNBLOCK-AS
AS7018 582 513 69 11.9% AT&T WorldNet Service Backbone
AS4792 77 11 66 85.7% SK Telecom Co., Ltd.
AS5106 99 36 63 63.6% AADS-COLUMBUS
AS3749 120 58 62 51.7% TECNET
AS226 169 107 62 36.7% USC/Information Sciences Institut
AS701 1070 1010 60 5.6% Alternet
AS3602 296 240 56 18.9% Sprint Canada Inc.
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
