[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, 07 Dec 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 Dec  7 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            A summary of the last weeks changes in terms of withdrawn and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 07Dec01
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      301101	104104
      011201	104113
      021201	104416
      031201	104321
      041201	104345
      051201	104395
      061201	104443
      071201	104426
      
      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:              12122
      
      Number of ASes announcing only one prefix:      7324 (4156 cidr, 3168 classful)
      
      Largest number of  cidr routes:                  801 announced by  AS701
      Largest number of classful routes:              1352 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 07Dec01 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS1221      1197      920      277   23.1%   Telstra Pty Ltd
      AS4151       294      161      133   45.2%   USDA 
      AS577        314      193      121   38.5%   Bell Advanced Communications Inc.
      AS16473      198       77      121   61.1%   Bell South 
      AS4755       226      141       85   37.6%   Videsh Sanchar Nigam Ltd. Autonom
      AS2048       184      105       79   42.9%   State of Louisiana 
      AS1239       489      410       79   16.2%   Sprint 
      AS17557      155       78       77   49.7%   Pakistan Telecom
      AS19632       87       11       76   87.4%   Metropolis Intercom S.A. 
      AS12302      107       31       76   71.0%   MobiFon S.A.
      AS3464       161       96       65   40.4%   Alabama SuperComputer Network 
      AS2149       347      283       64   18.4%   Performance Systems, Inc. 
      AS4323       373      315       58   15.5%   Time Warner Communications, Inc. 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS4200       111       55       56   50.5%   Apex Global Information Services,
      AS13999       68       14       54   79.4%   Mega Cable S.A. de C.V. 
      AS1          520      466       54   10.4%   BBN Planet 
      AS3908       310      257       53   17.1%   Supernet, Inc. 
      AS17561      115       64       51   44.3%   Internet service provision to Wes
      AS376        123       73       50   40.7%   Reseau Interordinateurs Scientiqu
      AS209        298      248       50   16.8%   Qwest 
      AS16814       65       18       47   72.3%   NSS, S.A. 
      AS15290      237      194       43   18.1%   AT&T Canada IES 
      AS11139       90       47       43   47.8%   Cable & Wireless Dominica 
      AS10620       64       21       43   67.2%   TVCABLE BOGOTA 
      AS10292       72       29       43   59.7%   TELECOMMUNICATIONS OF JAMAICA 
      AS5536        60       18       42   70.0%   Internet Egypt Network
      AS5416        51        9       42   82.4%   BATELCO-BH
      AS19834       56       14       42   75.0%   NetForce, Inc. 
      AS1267        68       26       42   61.8%   Infostrada S.p.A.
      
      
      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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