[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, 14 Sep 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 Sep 14 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            A summary of the last weeks changes in terms of withdrawn and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 14Sep01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      070901	103166
      080901	102958
      090901	102972
      100901	103070
      110901	103168
      120901	102677
      130901	102777
      140901	102582
      
      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:              11538
      
      Number of ASes announcing only one prefix:      6879 (3912 cidr, 2967 classful)
      
      Largest number of  cidr routes:                  837 announced by  AS701
      Largest number of classful routes:              1362 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 14Sep01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1279      969      310   24.2%   Telstra Pty Ltd
      AS701       1362     1162      200   14.7%   UUNET Technologies, Inc. 
      AS4151       286      163      123   43.0%   USDA 
      AS577        313      192      121   38.7%   Bell Advanced Communications Inc.
      AS6595       171       60      111   64.9%   DoD Education Activity Network As
      AS4293       379      270      109   28.8%   Cable & Wireless USA 
      AS13999      113       11      102   90.3%   Mega Cable S.A. de C.V. 
      AS705        247      148       99   40.1%   UUNET Technologies, Inc. 
      AS16473      171       74       97   56.7%   Bell South 
      AS6429       195      100       95   48.7%   AT&T Chile Internet S.A. 
      AS7018       755      661       94   12.5%   AT&T 
      AS4755       215      129       86   40.0%   Videsh Sanchar Nigam Ltd. Autonom
      AS12302       97       27       70   72.2%   MobiFon S.A.
      AS4200       142       74       68   47.9%   Apex Global Information Services,
      AS724        221      156       65   29.4%   DLA Systems Automation Center 
      AS6471       127       62       65   51.2%   ENTEL CHILE S.A. 
      AS1239       469      404       65   13.9%   Sprint 
      AS7046       316      254       62   19.6%   UUNET Technologies, Inc. 
      AS209        310      252       58   18.7%   Qwest 
      AS19632       67        9       58   86.6%   Metropolis Intercom S.A. 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS3464       149       94       55   36.9%   Alabama SuperComputer Network 
      AS703        309      255       54   17.5%   UUNET Technologies, Inc. 
      AS17557      121       68       53   43.8%   Pakistan Telecom
      AS226        145       93       52   35.9%   Los Nettos 
      AS17561      113       62       51   45.1%   Internet service provision to Wes
      AS1          539      488       51    9.5%   BBN Planet 
      AS4323       249      199       50   20.1%   Time Warner Communications, Inc. 
      AS855        144       96       48   33.3%   Canadian Research Network 
      AS852        206      160       46   22.3%   Telus Advanced Communications 
      
      
      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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