[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 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 14 23:00:00 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            A summary of the last weeks changes in terms of withdrawn and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 14Jun02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      070602	111313
      080602	111271
      090602	111270
      100602	111336
      110602	111462
      120602	111353
      130602	111438
      140602	111440
      
      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:              13109
      
      Number of ASes announcing only one prefix:      7989 (4485 cidr, 3504 classful)
      
      Largest number of  cidr routes:                  646 announced by  AS701
      Largest number of classful routes:              1351 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 14Jun02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS701       1351     1084      267   19.8%   UUNET Technologies, Inc. 
      AS1221      1090      845      245   22.5%   Telstra Pty Ltd
      AS17557      299      113      186   62.2%   Pakistan Telecom
      AS852        569      415      154   27.1%   Telus Advanced Communications 
      AS7018       815      684      131   16.1%   AT&T 
      AS6595       181       58      123   68.0%   DoD Education Activity Network As
      AS16473      194       76      118   60.8%   Bell South 
      AS705        305      205      100   32.8%   UUNET Technologies, Inc. 
      AS19632       98        4       94   95.9%   Metropolis Intercom S.A. 
      AS4151       233      140       93   39.9%   USDA 
      AS12302      120       27       93   77.5%   MobiFon S.A.
      AS7303       151       65       86   57.0%   Telecom Argentina Stet-France Tel
      AS16814      104       19       85   81.7%   NSS, S.A. 
      AS226        176       92       84   47.7%   Los Nettos 
      AS1239       501      417       84   16.8%   Sprint 
      AS7046       319      236       83   26.0%   UUNET Technologies, Inc. 
      AS4755       203      130       73   36.0%   Videsh Sanchar Nigam Ltd. Autonom
      AS2048       180      107       73   40.6%   State of Louisiana 
      AS577        261      189       72   27.6%   Bell Advanced Communications Inc.
      AS724        230      161       69   30.0%   DLA Systems Automation Center 
      AS4323       409      340       69   16.9%   Time Warner Communications, Inc. 
      AS3464       165      105       60   36.4%   Alabama SuperComputer Network 
      AS19834       64        4       60   93.8%   NetForce, Inc. 
      AS10620       83       23       60   72.3%   TVCABLE BOGOTA 
      AS209        317      260       57   18.0%   Qwest 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS3908       304      248       56   18.4%   Supernet, Inc. 
      AS1          446      390       56   12.6%   GENUITY 
      AS9051        81       26       55   67.9%   INCONET Autonomous System
      AS6535        69       16       53   76.8%   Chilesat Servicios  Empresariales
      
      Total      55229    42614    12615   22.8%
      
      
      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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