[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 Jun 2002 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 Jun  7 23:00:00 PDT 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            A summary of the last weeks changes in terms of withdrawn and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 amount 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 07Jun02
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      310502	110978
      010602	110824
      020602	110920
      030602	110922
      040602	111222
      050602	111490
      060602	111589
      070602	111313
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 192.0.2.0 from AS1103
      
      AS Summary
      ----------
      
      Number of ASes in routing system:              13089
      
      Number of ASes announcing only one prefix:      7961 (4467 cidr, 3494 classful)
      
      Largest number of  cidr routes:                  646 announced by  AS701
      Largest number of classful routes:              1359 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 07Jun02 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS701       1359     1091      268   19.7%   UUNET Technologies, Inc. 
      AS1221      1089      843      246   22.6%   Telstra Pty Ltd
      AS17557      292      104      188   64.4%   Pakistan Telecom
      AS852        590      431      159   26.9%   Telus Advanced Communications 
      AS7018       818      687      131   16.0%   AT&T 
      AS6595       177       57      120   67.8%   DoD Education Activity Network As
      AS16473      194       76      118   60.8%   Bell South 
      AS705        304      204      100   32.9%   UUNET Technologies, Inc. 
      AS19632       98        4       94   95.9%   Metropolis Intercom S.A. 
      AS4151       234      141       93   39.7%   USDA 
      AS12302      120       32       88   73.3%   MobiFon S.A.
      AS7303       150       65       85   56.7%   Telecom Argentina Stet-France Tel
      AS7046       331      246       85   25.7%   UUNET Technologies, Inc. 
      AS16814      104       19       85   81.7%   NSS, S.A. 
      AS1239       506      421       85   16.8%   Sprint 
      AS2048       181      104       77   42.5%   State of Louisiana 
      AS577        267      194       73   27.3%   Bell Advanced Communications Inc.
      AS4755       189      118       71   37.6%   Videsh Sanchar Nigam Ltd. Autonom
      AS724        230      161       69   30.0%   DLA Systems Automation Center 
      AS4323       408      339       69   16.9%   Time Warner Communications, Inc. 
      AS226        154       91       63   40.9%   Los Nettos 
      AS3464       166      105       61   36.7%   Alabama SuperComputer Network 
      AS19834       64        4       60   93.8%   NetForce, Inc. 
      AS10620       83       23       60   72.3%   TVCABLE BOGOTA 
      AS1          450      392       58   12.9%   GENUITY 
      AS3908       308      251       57   18.5%   Supernet, Inc. 
      AS16758       63        6       57   90.5%   IKON Office Solutions 
      AS209        314      258       56   17.8%   Qwest 
      AS9051        79       27       52   65.8%   INCONET Autonomous System
      AS6535        62       15       47   75.8%   Chilesat Servicios  Empresariales
      
      Total      55269    42687    12582   22.8%
      
      
      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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