[apops] The Cidr Report

  • To: nanog at merit dot edu
  • Subject: [apops] The Cidr Report
  • From: CIDR Report <cidr-report at cisco dot com>
  • Date: Fri, 22 Feb 2002 23:00:03 -0800
  • Cc: tbates at cisco dot com, eof-list at ripe dot net, apops at lists dot apnic dot net, routing-wg at ripe dot net, afnog at afnog dot org
  • Sender: owner-apops@lists.apnic.net
    • 
      This is an auto-generated mail on Fri Feb 22 23:00:00 PST 2002
      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.
      
      Check http://www.employees.org/~tbates/cidr-report.html for a daily
      update of this report.
      
      NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for
      the regional version of this report.
      
      NEW: Check http://www.employees.org/~tbates/autnums.html for a complete
      list of autonomous system number to name mappings as used by the CIDR-Report.
      
      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            A summary of the last weeks changes in terms of withdrawn and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 GX Networks for giving me access to their routing tables once a
      day. 
      
      Please send any comments about this report directly to CIDR Report <cidr-report at cisco dot com>.
      
      
      
      ------------------------------------------------------------------------------
      
                              CIDR REPORT for 22Feb02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      150202	105693
      160202	105736
      170202	105803
      180202	105879
      190202	105989
      200202	106186
      210202	105821
      220202	106236
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 96.0.0.0/20 from AS3549
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              12451
      
      Number of ASes announcing only one prefix:      7566 (4299 cidr, 3267 classful)
      
      Largest number of  cidr routes:                  728 announced by  AS701
      Largest number of classful routes:              1369 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 22Feb02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1150      886      264   23.0%   Telstra Pty Ltd
      AS701       1369     1125      244   17.8%   UUNET Technologies, Inc. 
      AS17557      224       96      128   57.1%   Pakistan Telecom
      AS7018       836      712      124   14.8%   AT&T 
      AS577        320      197      123   38.4%   Bell Advanced Communications Inc.
      AS16473      198       77      121   61.1%   Bell South 
      AS4151       254      149      105   41.3%   USDA 
      AS705        309      205      104   33.7%   UUNET Technologies, Inc. 
      AS852        425      324      101   23.8%   Telus Advanced Communications 
      AS6595       150       55       95   63.3%   DoD Education Activity Network As
      AS7046       324      239       85   26.2%   UUNET Technologies, Inc. 
      AS19632       94        9       85   90.4%   Metropolis Intercom S.A. 
      AS2048       186      105       81   43.5%   State of Louisiana 
      AS12302      110       31       79   71.8%   MobiFon S.A.
      AS1239       482      405       77   16.0%   Sprint 
      AS4323       432      356       76   17.6%   Time Warner Communications, Inc. 
      AS4755       221      147       74   33.5%   Videsh Sanchar Nigam Ltd. Autonom
      AS3908       339      271       68   20.1%   Supernet, Inc. 
      AS3464       157       97       60   38.2%   Alabama SuperComputer Network 
      AS724        215      156       59   27.4%   DLA Systems Automation Center 
      AS7303       106       48       58   54.7%   Telecom Argentina Stet-France Tel
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS226        145       89       56   38.6%   Los Nettos 
      AS19834       63        8       55   87.3%   NetForce, Inc. 
      AS10620       77       22       55   71.4%   TVCABLE BOGOTA 
      AS9051        75       22       53   70.7%   INCONET Autonomous System
      AS702        621      568       53    8.5%   UUNET Technologies, Inc. 
      AS703        271      219       52   19.2%   UUNET Technologies, Inc. 
      AS2149       305      253       52   17.0%   Performance Systems, Inc. 
      AS209        300      248       52   17.3%   Qwest 
      
      Total      53958    42075    11883   22.0%
      
      
      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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