[31406] in North American Network Operators' Group
The Cidr Report
daemon@ATHENA.MIT.EDU (Tony Bates)
Fri Sep 22 15:05:22 2000
Message-Id: <200009221900.MAA11344@lovefm.cisco.com>
To: nanog@merit.edu
Cc: tbates@cisco.com, eof-list@ripe.net, apops@apnic.net,
routing-wg@ripe.net
Date: Fri, 22 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 22 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A summary of the last weeks changes in terms of withdrawn and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 22Sep00
0) General Status
Table History
-------------
Date Prefixes
150900 87093
160900 87265
170900 87208
180900 87379
190900 87348
200900 87707
210900 87719
220900 87996
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 65.33.0.0/16 from AS10994
*** 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 65.160.0.0/15 from AS1239
*** Bogus 65.162.0.0/16 from AS1239
*** 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 66.9.16.0/23 from AS16445
*** Bogus 66.10.0.0/20 from AS7132
*** Bogus 66.10.32.0/20 from AS7132
*** Bogus 66.16.0.0/17 from AS14914
*** Bogus 66.18.13.0/24 from AS3549
*** Bogus 66.20.128.0/22 from AS7892
*** Bogus 105.200.37.0/24 from AS9768
*** 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 217.8.128.0/20 from AS15552
*** Bogus 217.8.160.0/20 from AS8246
*** Bogus 217.8.160.0/20 from AS15560
*** Bogus 217.9.32.0/20 from AS15563
*** Bogus 217.9.36.0/22 from AS15563
*** Bogus 217.9.42.0 from AS15563
*** Bogus 217.9.64.0/20 from AS3269
*** Bogus 217.9.96.0/20 from AS15671
*** Bogus 217.9.128.0/20 from AS12969
*** Bogus 217.9.160.0 from AS15606
*** 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 217.10.96.0/20 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 217.11.224.0/20 from AS15685
*** Bogus 217.12.0.0/20 from AS15635
*** Bogus 217.12.32.0/20 from AS5378
*** Bogus 217.12.96.0 from AS15632
*** Bogus 217.12.96.0/23 from AS15632
*** Bogus 217.12.97.0 from AS15632
*** 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 217.32.0.0/12 from AS2856
*** Bogus 217.117.117.0 from AS2007
*** Bogus 220.10.56.0 from AS3215
AS Summary
----------
Number of ASes in routing system: 8534
Number of ASes announcing only one prefix: 4865 (2696 cidr, 2169 classful)
Largest number of cidr routes: 892 announced by AS701
Largest number of classful routes: 1087 announced by AS701
1) Gains by aggregating at the origin AS level
--- 22Sep00 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS271 432 155 277 64.1% BCnet Backbone
AS9706 310 104 206 66.5% Pusan Metropolitan City Office of
AS1221 611 451 160 26.2% TELSTRA-AS
AS9269 179 40 139 77.7% Hong Kong CTI
AS816 566 429 137 24.2% UUNET Canada (ASN-UUNETCA-AS4)
AS2609 128 8 120 93.8% EUnet-TN
AS7657 324 211 113 34.9% The Internet Group Limited
AS9304 124 17 107 86.3% Hutchcity
AS7046 376 270 106 28.2% COQUI-NET PRTC Internet
AS7545 159 56 103 64.8% TPG Internet Pty Ltd
AS705 367 266 101 27.5% UNKNOWN
AS6429 209 115 94 45.0% FirstCom Internet
AS7496 125 34 91 72.8% Power Up
AS4755 208 118 90 43.3% Videsh Sanchar Nigam Ltd. India
AS8013 490 403 87 17.8% UNKNOWN
AS174 536 450 86 16.0% Performance Systems International
AS6595 138 57 81 58.7% UNKNOWN
AS3908 256 176 80 31.2% Supernet, Inc.
AS4293 331 252 79 23.9% Internal ASN for C&W
AS724 244 168 76 31.1% UNKNOWN
AS1785 384 309 75 19.5% AppliedTheory Communications
AS1727 172 97 75 43.6% UNKNOWN
AS577 250 177 73 29.2% Bell Backbone
AS7018 581 514 67 11.5% AT&T WorldNet Service Backbone
AS701 1087 1021 66 6.1% Alternet
AS4792 77 11 66 85.7% SK Telecom Co., Ltd.
AS13999 77 11 66 85.7% UNKNOWN
AS5106 99 36 63 63.6% UNKNOWN
AS3749 119 57 62 52.1% UNKNOWN
AS226 170 108 62 36.5% USC/Information Sciences Institut
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
