The Cidr Report

[Tony Bates <tbates () cisco com>]

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      A summary of the last weeks changes in terms of withdrawn and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