[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, 22 Mar 2002 23:00:02 -0800
  • 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 Mar 22 23:00:00 PST 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            A summary of the last weeks changes in terms of withdrawn and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 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 22Mar02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      150302	107703
      160302	107617
      170302	107671
      180302	107620
      190302	107636
      200302	107764
      210302	107710
      220302	107724
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 10.1.1.1/32 from AS(65301)
      *** Bogus 96.0.0.0/20 from AS3549
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              12654
      
      Number of ASes announcing only one prefix:      7701 (4335 cidr, 3366 classful)
      
      Largest number of  cidr routes:                  720 announced by  AS701
      Largest number of classful routes:              1377 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 22Mar02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS701       1377     1122      255   18.5%   UUNET Technologies, Inc. 
      AS1221      1125      873      252   22.4%   Telstra Pty Ltd
      AS17557      242       91      151   62.4%   Pakistan Telecom
      AS852        489      349      140   28.6%   Telus Advanced Communications 
      AS7018       821      700      121   14.7%   AT&T 
      AS16473      198       77      121   61.1%   Bell South 
      AS6595       168       58      110   65.5%   DoD Education Activity Network As
      AS4151       256      150      106   41.4%   USDA 
      AS705        309      207      102   33.0%   UUNET Technologies, Inc. 
      AS7046       348      247      101   29.0%   UUNET Technologies, Inc. 
      AS19632       94        9       85   90.4%   Metropolis Intercom S.A. 
      AS2048       185      104       81   43.8%   State of Louisiana 
      AS577        271      191       80   29.5%   Bell Advanced Communications Inc.
      AS12302      116       37       79   68.1%   MobiFon S.A.
      AS9051       100       24       76   76.0%   INCONET Autonomous System
      AS1239       498      422       76   15.3%   Sprint 
      AS4323       412      340       72   17.5%   Time Warner Communications, Inc. 
      AS4755       218      148       70   32.1%   Videsh Sanchar Nigam Ltd. Autonom
      AS7303       116       51       65   56.0%   Telecom Argentina Stet-France Tel
      AS3908       329      264       65   19.8%   Supernet, Inc. 
      AS3464       157       97       60   38.2%   Alabama SuperComputer Network 
      AS1          476      416       60   12.6%   BBN Planet 
      AS10620       79       21       58   73.4%   TVCABLE BOGOTA 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS724        203      147       56   27.6%   DLA Systems Automation Center 
      AS209        314      258       56   17.8%   Qwest 
      AS16814       72       17       55   76.4%   NSS, S.A. 
      AS702        588      535       53    9.0%   UUNET Technologies, Inc. 
      AS226        142       89       53   37.3%   Los Nettos 
      AS19834       61        8       53   86.9%   NetForce, Inc. 
      
      Total      54241    42105    12136   22.4%
      
      
      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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