[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, 28 Jun 2002 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 Jun 28 23:00:01 PDT 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            A summary of the last weeks changes in terms of withdrawn and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 amount 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 28Jun02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      210602	111582
      220602	111717
      230602	111670
      240602	111786
      250602	111981
      260602	111996
      270602	111954
      280602	111076
      
      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:              13191
      
      Number of ASes announcing only one prefix:      8060 (4540 cidr, 3520 classful)
      
      Largest number of  cidr routes:                  623 announced by  AS701
      Largest number of classful routes:              1237 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 28Jun02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1097      846      251   22.9%   Telstra Pty Ltd
      AS701       1237      989      248   20.0%   UUNET Technologies, Inc. 
      AS17557      298      112      186   62.4%   Pakistan Telecom
      AS6595       204       58      146   71.6%   DoD Education Activity Network As
      AS7018       808      677      131   16.2%   AT&T 
      AS852        479      352      127   26.5%   Telus Advanced Communications 
      AS16473      193       75      118   61.1%   Bell South 
      AS4151       237      142       95   40.1%   USDA 
      AS19632       98        4       94   95.9%   Metropolis Intercom S.A. 
      AS1239       523      430       93   17.8%   Sprint 
      AS12302      123       30       93   75.6%   MobiFon S.A.
      AS7303       159       68       91   57.2%   Telecom Argentina Stet-France Tel
      AS7046       325      236       89   27.4%   UUNET Technologies, Inc. 
      AS16814      105       20       85   81.0%   NSS, S.A. 
      AS226        176       92       84   47.7%   Los Nettos 
      AS2048       182      104       78   42.9%   State of Louisiana 
      AS4755       205      132       73   35.6%   Videsh Sanchar Nigam Ltd. Autonom
      AS577        262      190       72   27.5%   Bell Advanced Communications Inc.
      AS4323       408      339       69   16.9%   Time Warner Communications, Inc. 
      AS3464       164      103       61   37.2%   Alabama SuperComputer Network 
      AS19834       64        4       60   93.8%   NetForce, Inc. 
      AS10620       83       23       60   72.3%   TVCABLE BOGOTA 
      AS724        216      157       59   27.3%   DLA Systems Automation Center 
      AS6123        70       13       57   81.4%   Web Professionals 
      AS3908       310      253       57   18.4%   Supernet, Inc. 
      AS209        315      258       57   18.1%   Qwest 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS1          444      388       56   12.6%   GENUITY 
      AS9051        81       26       55   67.9%   INCONET Autonomous System
      AS9498        80       27       53   66.2%   BHARTI BT INTERNET LTD.
      
      Total      54876    42309    12567   22.9%
      
      
      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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