[apops] The Cidr Report

  • To: nanog at merit dot edu
  • Subject: [apops] The Cidr Report
  • From: Tony Bates <tbates at cisco dot com>
  • Date: Fri, 12 Jan 2001 12:00:04 -0800
  • Cc: tbates at cisco dot com, eof-list at ripe dot net, apops at apnic dot net, routing-wg at ripe dot net
  • Sender: owner-apops@lists.apnic.net
    • 
      This is an auto-generated mail on Fri Jan 12 12:00:00 PST 2001
      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            A summary of the last weeks changes in terms of withdrawn and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 12Jan01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      050101	95475
      060101	95482
      070101	95512
      080101	95490
      090101	95422
      100101	95551
      110101	99200
      120101	96318
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      
      AS Summary
      ----------
      
      Number of ASes in routing system:                 7237
      
      Number of ASes announcing only one prefix:        3821 (1389 cidr, 2432 classful)
      
      Largest number of  cidr routes:                    637 announced by  AS701
      Largest number of classful routes:                1652 announced by AS1221
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 12Jan01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS10501        2        1        1   50.0%   PacLink
      AS10390        2        1        1   50.0%   TELECHECK
      AS10240        2        1        1   50.0%   MOTLEYFOOL
      AS10173        2        1        1   50.0%   KSNET.Inc
      AS9995         1        1        0    0.0%   Japan Network Information Center
      AS9991         1        1        0    0.0%   Japan Network Information Center
      AS9983         1        1        0    0.0%   Australian Bureau of Statistics.
      AS9982         1        1        0    0.0%   PAICHAI UNIVERSITY
      AS9979         1        1        0    0.0%   KOREA EXCHANGE BANK
      AS9978         1        1        0    0.0%   The University of Seoul
      AS9974         1        1        0    0.0%   KOREA SECURITIES COMPUTER CORP. B
      AS9973         1        1        0    0.0%   KEB Futures Co.
      AS9968         1        1        0    0.0%   Kyobo Life Insurance
      AS9962         1        1        0    0.0%   Sunchon National University
      AS9960         1        1        0    0.0%   NEW C&C CO.,LTD.
      AS9954         1        1        0    0.0%   Kunsan National University
      AS9953         1        1        0    0.0%   Hyundai Eng. & Const. Co., Ltd.
      AS9951         1        1        0    0.0%   D3C Net
      AS9950         1        1        0    0.0%   INT Co.,Ltd.
      AS9935         1        1        0    0.0%   AGNS-Customer-KW
      AS9928         1        1        0    0.0%   Crystal Internet
      AS9927         1        1        0    0.0%   A Multihomed ISP Company
      AS9912         1        1        0    0.0%   Quality Internet Services
      AS9879         1        1        0    0.0%   OGILVY ASIA/PACIFIC
      AS9877         1        1        0    0.0%   Ngee Ann Polytechnic Computer Cen
      AS9875         1        1        0    0.0%   PT. Pasifik Satelit Nusantara
      AS9871         1        1        0    0.0%   JC Entertainment Co.
      AS9868         1        1        0    0.0%   Catholic University of TAEGU HYOS
      AS9866         1        1        0    0.0%   LGCAPITAL
      AS9862         1        1        0    0.0%   YES24 CO. LTD
      
      
      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
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