[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, 10 Aug 2001 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 Aug 10 23:00:00 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            A summary of the last weeks changes in terms of withdrawn and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 10Aug01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      030801	102236
      040801	102194
      050801	102268
      060801	102340
      070801	102456
      080801	102930
      090801	103092
      100801	102845
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 82.105.0.0/16 from AS3269
      *** Bogus 82.105.128.0/17 from AS3269
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              11345
      
      Number of ASes announcing only one prefix:      6735 (3850 cidr, 2885 classful)
      
      Largest number of  cidr routes:                  862 announced by  AS701
      Largest number of classful routes:              1396 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 10Aug01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1251      962      289   23.1%   Telstra Pty Ltd
      AS701       1396     1186      210   15.0%   UUNET Technologies, Inc. 
      AS2551       748      601      147   19.7%   ICG NetAhead, Inc 
      AS4151       288      164      124   43.1%   USDA 
      AS4293       391      279      112   28.6%   Cable & Wireless USA 
      AS4755       257      147      110   42.8%   Videsh Sanchar Nigam Ltd. Autonom
      AS6595       163       57      106   65.0%   DoD Education Activity Network As
      AS577        294      188      106   36.1%   Bell Advanced Communications Inc.
      AS6429       203      102      101   49.8%   AT&T Chile Internet S.A. 
      AS13999      108       12       96   88.9%   Mega Cable S.A. de C.V. 
      AS705        233      141       92   39.5%   UUNET Technologies, Inc. 
      AS7018       735      646       89   12.1%   AT&T 
      AS16473      151       65       86   57.0%   Bell South 
      AS7046       325      253       72   22.2%   UUNET Technologies, Inc. 
      AS724        222      156       66   29.7%   DLA Systems Automation Center 
      AS6471       122       60       62   50.8%   ENTEL CHILE S.A. 
      AS12302       93       32       61   65.6%   MobiFon S.A.
      AS4200       126       66       60   47.6%   Apex Global Information Services,
      AS1239       455      396       59   13.0%   Sprint 
      AS3464       149       91       58   38.9%   Alabama SuperComputer Network 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS703        301      246       55   18.3%   UUNET Technologies, Inc. 
      AS3908       325      270       55   16.9%   Supernet, Inc. 
      AS1          547      492       55   10.1%   BBN Planet 
      AS226        147       94       53   36.1%   Los Nettos 
      AS6413        65       13       52   80.0%   Southern Online Systems, Inc. 
      AS4323       242      190       52   21.5%   Time Warner Communications, Inc. 
      AS17561      113       62       51   45.1%   Internet service provision to Wes
      AS852        214      164       50   23.4%   Telus Advanced Communications 
      AS9842        54        5       49   90.7%   Lotte Data Communication Company
      
      
      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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