[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, 08 Feb 2002 23:00:03 -0800
  • Cc: tbates at cisco dot com, eof-list at ripe dot net, apops at lists dot apnic dot net
  • Sender: owner-apops@lists.apnic.net
    • 
      
      This is an auto-generated mail on Fri Feb  8 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            A summary of the last weeks changes in terms of withdrawn and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 08Feb02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      010202	105568
      020202	105595
      030202	105578
      040202	105667
      050202	105600
      060202	105584
      070202	105721
      080202	105598
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 96.0.0.0/20 from AS3549
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              12381
      
      Number of ASes announcing only one prefix:      7537 (4280 cidr, 3257 classful)
      
      Largest number of  cidr routes:                  717 announced by  AS701
      Largest number of classful routes:              1357 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 08Feb02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1156      892      264   22.8%   Telstra Pty Ltd
      AS701       1357     1126      231   17.0%   UUNET Technologies, Inc. 
      AS577        323      197      126   39.0%   Bell Advanced Communications Inc.
      AS16473      198       77      121   61.1%   Bell South 
      AS7018       821      703      118   14.4%   AT&T 
      AS4151       261      149      112   42.9%   USDA 
      AS6595       168       60      108   64.3%   DoD Education Activity Network As
      AS17557      195       88      107   54.9%   Pakistan Telecom
      AS705        293      189      104   35.5%   UUNET Technologies, Inc. 
      AS852        425      325      100   23.5%   Telus Advanced Communications 
      AS7046       329      230       99   30.1%   UUNET Technologies, Inc. 
      AS19632       94        9       85   90.4%   Metropolis Intercom S.A. 
      AS2048       185      105       80   43.2%   State of Louisiana 
      AS12302      110       31       79   71.8%   MobiFon S.A.
      AS1239       475      398       77   16.2%   Sprint 
      AS4755       221      150       71   32.1%   Videsh Sanchar Nigam Ltd. Autonom
      AS4323       406      340       66   16.3%   Time Warner Communications, Inc. 
      AS703        279      217       62   22.2%   UUNET Technologies, Inc. 
      AS3464       157       97       60   38.2%   Alabama SuperComputer Network 
      AS7303       107       49       58   54.2%   Telecom Argentina Stet-France Tel
      AS724        209      151       58   27.8%   DLA Systems Automation Center 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS3908       320      264       56   17.5%   Supernet, Inc. 
      AS226        145       89       56   38.6%   Los Nettos 
      AS13999       70       14       56   80.0%   Mega Cable S.A. de C.V. 
      AS19834       63        8       55   87.3%   NetForce, Inc. 
      AS702        654      600       54    8.3%   UUNET Technologies, Inc. 
      AS1          491      438       53   10.8%   BBN Planet 
      AS2149       308      256       52   16.9%   Performance Systems, Inc. 
      AS9051        73       22       51   69.9%   INCONET Autonomous System
      
      Total      53855    42131    11724   21.8%
      
      
      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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