[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, 31 Aug 2001 23:00:02 -0700
  • 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 Aug 31 23:00:00 PDT 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.
      
      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            A summary of the last weeks changes in terms of withdrawn and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 31Aug01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      240801	103170
      250801	103304
      260801	103160
      270801	102884
      280801	103189
      290801	103298
      300801	103283
      310801	103087
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 82.105.0.0/16 from AS3269
      *** Bogus 82.105.128.0/17 from AS3269
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              11502
      
      Number of ASes announcing only one prefix:      6853 (3906 cidr, 2947 classful)
      
      Largest number of  cidr routes:                  849 announced by  AS701
      Largest number of classful routes:              1398 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 31Aug01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1270      964      306   24.1%   Telstra Pty Ltd
      AS701       1398     1187      211   15.1%   UUNET Technologies, Inc. 
      AS4151       295      166      129   43.7%   USDA 
      AS577        314      193      121   38.5%   Bell Advanced Communications Inc.
      AS6595       169       60      109   64.5%   DoD Education Activity Network As
      AS4293       381      272      109   28.6%   Cable & Wireless USA 
      AS16473      177       74      103   58.2%   Bell South 
      AS13999      113       11      102   90.3%   Mega Cable S.A. de C.V. 
      AS705        244      145       99   40.6%   UUNET Technologies, Inc. 
      AS6429       198      104       94   47.5%   AT&T Chile Internet S.A. 
      AS7018       756      663       93   12.3%   AT&T 
      AS4755       212      125       87   41.0%   Videsh Sanchar Nigam Ltd. Autonom
      AS12302       96       26       70   72.9%   MobiFon S.A.
      AS4200       150       82       68   45.3%   Apex Global Information Services,
      AS7046       323      257       66   20.4%   UUNET Technologies, Inc. 
      AS6471       128       62       66   51.6%   ENTEL CHILE S.A. 
      AS1239       464      399       65   14.0%   Sprint 
      AS724        209      149       60   28.7%   DLA Systems Automation Center 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS703        310      255       55   17.7%   UUNET Technologies, Inc. 
      AS3908       321      266       55   17.1%   Supernet, Inc. 
      AS3464       144       91       53   36.8%   Alabama SuperComputer Network 
      AS209        289      236       53   18.3%   Qwest 
      AS6413        65       13       52   80.0%   Southern Online Systems, Inc. 
      AS226        145       93       52   35.9%   Los Nettos 
      AS19632       60        9       51   85.0%   Metropolis Intercom S.A. 
      AS17561      113       62       51   45.1%   Internet service provision to Wes
      AS1          545      494       51    9.4%   BBN Planet 
      AS17557      110       62       48   43.6%   Pakistan Telecom
      AS4323       241      194       47   19.5%   Time Warner Communications, 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
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