[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, 25 Aug 2000 12:00:02 -0700
  • 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 Aug 25 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            A summary of the last weeks changes in terms of withdrawn and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 25Aug00
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      180800	85012
      190800	84653
      200800	84576
      210800	84539
      220800	86440
      230800	85617
      240800	85297
      250800	85144
      
      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:                 6240
      
      Number of ASes announcing only one prefix:        3082 (1039 cidr, 2043 classful)
      
      Largest number of  cidr routes:                    589 announced by  AS705
      Largest number of classful routes:                1076 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 25Aug00 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS12935       12        3        9   75.0%   Nocom.net AB, HQ Stockholm
      AS9655        11        3        8   72.7%   Startvision
      AS12540       10        2        8   80.0%   IdecNet Autonomous System
      AS9867        10        3        7   70.0%   CHONJU TECHNICAL COLLEGE
      AS9772         8        1        7   87.5%   Mighty Information Systems
      AS7980         9        2        7   77.8%   Global One Communications
      AS7959        12        5        7   58.3%   VICON
      AS7888        12        5        7   58.3%   CSI Health Autonomous System Obje
      AS7453         8        1        7   87.5%   GTINET
      AS6630         9        2        7   77.8%   LOA
      AS6614         8        1        7   87.5%   USCC-ASN
      AS3753        10        3        7   70.0%   NSCEE
      AS3339         9        2        7   77.8%   AT&T Israel
      AS14677       11        4        7   63.6%   UNKNOWN
      AS14659        8        1        7   87.5%   LivePerson, Inc.
      AS14204        8        1        7   87.5%   UNKNOWN
      AS14062       11        4        7   63.6%   UNKNOWN
      AS13894       10        3        7   70.0%   UNKNOWN
      AS13761        8        1        7   87.5%   IMPSAT Brasil
      AS13418       10        3        7   70.0%   UNKNOWN
      AS12671        8        1        7   87.5%   Jordan Internet Network Autonomou
      AS11950        8        1        7   87.5%   UNKNOWN
      AS11900        9        2        7   77.8%   UNKNOWN
      AS11699       10        3        7   70.0%   Blue Mountain Internet
      AS10647       10        3        7   70.0%   UNKNOWN
      AS10242       12        5        7   58.3%   USINTERNET
      AS10044       10        3        7   70.0%   Wonkwang Health Science College
      AS8221        12        6        6   50.0%   Isabel-Belgium
      AS7699        10        4        6   60.0%   Weblink Philippines Inc
      AS6296        12        6        6   50.0%   MIND
      
      
      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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