[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, 30 Nov 2001 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 Nov 30 23:00:00 PST 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            A summary of the last weeks changes in terms of withdrawn and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 30Nov01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      231101	104388
      241101	104158
      251101	103973
      261101	104689
      271101	104073
      281101	104130
      291101	103988
      301101	104104
      
      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:              12046
      
      Number of ASes announcing only one prefix:      7241 (4108 cidr, 3133 classful)
      
      Largest number of  cidr routes:                  797 announced by  AS701
      Largest number of classful routes:              1396 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 30Nov01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1197      921      276   23.1%   Telstra Pty Ltd
      AS4151       319      179      140   43.9%   USDA 
      AS16473      198       77      121   61.1%   Bell South 
      AS4755       226      142       84   37.2%   Videsh Sanchar Nigam Ltd. Autonom
      AS2048       184      105       79   42.9%   State of Louisiana 
      AS1239       483      405       78   16.1%   Sprint 
      AS19632       87       11       76   87.4%   Metropolis Intercom S.A. 
      AS17557      154       83       71   46.1%   Pakistan Telecom
      AS12302      104       36       68   65.4%   MobiFon S.A.
      AS4200       127       62       65   51.2%   Apex Global Information Services,
      AS2149       351      287       64   18.2%   Performance Systems, Inc. 
      AS3464       156       95       61   39.1%   Alabama SuperComputer Network 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS4323       370      314       56   15.1%   Time Warner Communications, Inc. 
      AS3908       303      251       52   17.2%   Supernet, Inc. 
      AS17561      115       64       51   44.3%   Internet service provision to Wes
      AS1          513      462       51    9.9%   BBN Planet 
      AS209        292      242       50   17.1%   Qwest 
      AS376        122       73       49   40.2%   Reseau Interordinateurs Scientiqu
      AS16814       65       18       47   72.3%   NSS, S.A. 
      AS11139       92       46       46   50.0%   Cable & Wireless Dominica 
      AS15290      240      196       44   18.3%   AT&T Canada IES 
      AS10620       64       21       43   67.2%   TVCABLE BOGOTA 
      AS10292       72       29       43   59.7%   TELECOMMUNICATIONS OF JAMAICA 
      AS5416        51        9       42   82.4%   BATELCO-BH
      AS1267        68       26       42   61.8%   Infostrada S.p.A.
      AS19834       51       11       40   78.4%   NetForce, Inc. 
      AS2007       167      129       38   22.8%   INFONET 
      AS12235       47        9       38   80.9%   Cove Software Systems Inc 
      AS2652       103       67       36   35.0%   Government Telecommunications and
      
      
      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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