[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, 12 Oct 2001 23:00:04 -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 Oct 12 23:00:02 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            A summary of the last weeks changes in terms of withdrawn and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 12Oct01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      051001	104449
      061001	104665
      071001	104597
      081001	104752
      091001	104769
      101001	104817
      111001	105289
      121001	104773
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 1.0.0.0 from AS7623
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              11764
      
      Number of ASes announcing only one prefix:      7013 (3982 cidr, 3031 classful)
      
      Largest number of  cidr routes:                  872 announced by  AS701
      Largest number of classful routes:              1406 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 12Oct01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1232      947      285   23.1%   Telstra Pty Ltd
      AS701       1406     1185      221   15.7%   UUNET Technologies, Inc. 
      AS4151       304      172      132   43.4%   USDA 
      AS16473      201       76      125   62.2%   Bell South 
      AS577        304      185      119   39.1%   Bell Advanced Communications Inc.
      AS13999      132       16      116   87.9%   Mega Cable S.A. de C.V. 
      AS4293       380      271      109   28.7%   Cable & Wireless USA 
      AS6595       167       60      107   64.1%   DoD Education Activity Network As
      AS7018       777      672      105   13.5%   AT&T 
      AS721        366      266      100   27.3%   DLA Systems Automation Center 
      AS705        262      162      100   38.2%   UUNET Technologies, Inc. 
      AS2048       216      116      100   46.3%   State of Louisiana 
      AS4755       199      122       77   38.7%   Videsh Sanchar Nigam Ltd. Autonom
      AS11686      215      138       77   35.8%   Education Networks of America 
      AS1239       481      407       74   15.4%   Sprint 
      AS7046       331      261       70   21.1%   UUNET Technologies, Inc. 
      AS4200       142       74       68   47.9%   Apex Global Information Services,
      AS3464       162       95       67   41.4%   Alabama SuperComputer Network 
      AS12302      100       34       66   66.0%   MobiFon S.A.
      AS724        216      151       65   30.1%   DLA Systems Automation Center 
      AS6471       129       64       65   50.4%   ENTEL CHILE S.A. 
      AS17557      128       66       62   48.4%   Pakistan Telecom
      AS19632       70       11       59   84.3%   Metropolis Intercom S.A. 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS209        309      254       55   17.8%   Qwest 
      AS306         60        6       54   90.0%   National Guard Bureau 
      AS226        145       93       52   35.9%   Los Nettos 
      AS400        135       84       51   37.8%   Headquarters Standard Systems Cen
      AS17561      111       60       51   45.9%   Internet service provision to Wes
      AS1          529      478       51    9.6%   BBN Planet 
      
      
      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
      *             APOPS: Asia Pacific Operations Forum              *
      * To unsubscribe: send "unsubscribe" to apops-request at apnic dot net *