[apops] The Cidr Report

  • To: nanog at merit dot edu
  • Subject: [apops] The Cidr Report
  • From: Tony Bates <tbates at cisco dot com>
  • Date: Fri, 25 Feb 2000 12:00:02 -0800
  • Cc: tbates at cisco dot com, eof-list at ripe dot net, apops at apnic dot net, routing-wg at ripe dot net
  • Sender: owner-apops@lists.apnic.net
    • 
      This is an auto-generated mail on Fri Feb 25 12:00:00 PST 2000
      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.
      
      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            A summary of the last weeks changes in terms of withdrawn and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 xara.net for giving me access to their routing tables once a
      day. 
      
      Please send any comments about this report directly to me.
      
      Check http://www.employees.org/~tbates/cidr-report.html for a daily
      update of this report.
      
      
      
      ------------------------------------------------------------------------------
      
                              CIDR REPORT for 25Feb00
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      180200	72321
      190200	72203
      200200	72346
      210200	72296
      220200	72419
      230200	72364
      240200	72455
      250200	72608
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 65.45.0.0/19 from AS10585
      *** Bogus 99.0.0.0 from AS9841
      *** Bogus 219.91.160.0/22 from AS7742
      *** Bogus 219.91.164.0/23 from AS7742
      
      AS Summary
      ----------
      
      Number of ASes in routing system:                 6762
      
      Number of ASes announcing only one prefix:        3701 (2011 cidr, 1690 classful)
      
      Largest number of  cidr routes:                    774 announced by  AS701
      Largest number of classful routes:                1009 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 25Feb00 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS271        437      152      285   65.2%   BCnet Backbone
      AS7046       438      292      146   33.3%   UUNET-CUSTOMER
      AS1221       657      523      134   20.4%   TELSTRA-AS
      AS9269       154       26      128   83.1%   Hong Kong CTI
      AS9706       151       26      125   82.8%   Pusan Metropolitan City Office of
      AS2609       122       23       99   81.1%   EUnet-TN
      AS4293       272      177       95   34.9%   Internal ASN for C&W
      AS2715       157       62       95   60.5%   REDERIO-AS
      AS7657       274      181       93   33.9%   The Internet Group Limited
      AS7545       154       61       93   60.4%   TPG Internet Pty Ltd
      AS7496       124       38       86   69.4%   Power Up
      AS6429       203      118       85   41.9%   RDC-INTERNET
      AS174        553      471       82   14.8%   Performance Systems International
      AS705        291      212       79   27.1%   ALTERNET-AS
      AS9304       101       23       78   77.2%   Hutchcity
      AS3749       137       61       76   55.5%   TECNET
      AS577        245      172       73   29.8%   Bell Backbone
      AS3602       326      253       73   22.4%   Sprint Canada Inc.
      AS816        369      306       63   17.1%   UUNET Canada (ASN-UUNETCA-AS4)
      AS4200       167      104       63   37.7%   AGIS (Apex Global Information Ser
      AS7029       111       50       61   55.0%   ALLTELNET
      AS4740       337      279       58   17.2%   Ozemail Pty Ltd (ASN-OZEMAIL)
      AS1727       134       77       57   42.5%   MRMS-WEST
      AS7260       103       48       55   53.4%   NORLIGHT
      AS209        385      335       50   13.0%   Qwest Communications
      AS9557        73       26       47   64.4%   Pakistan Telecommunication Compan
      AS701       1009      962       47    4.7%   Alternet
      AS2652       126       81       45   35.7%   Government of Canada Telecommunic
      AS684         86       44       42   48.8%   Manitoba Regional Network Backbon
      AS6528        48        6       42   87.5%   WORLD-LYNX
      
      
      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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