[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, 21 Jan 2000 12:00:04 -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 Jan 21 12:00:02 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            A summary of the last weeks changes in terms of withdrawn and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 21Jan00
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      140100	69862
      150100	70956
      160100	70982
      170100	71135
      180100	70228
      190100	70246
      200100	70143
      210100	70096
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 219.91.160.0/22 from AS7742
      *** Bogus 219.91.164.0/23 from AS7742
      
      AS Summary
      ----------
      
      Number of ASes in routing system:                 6488
      
      Number of ASes announcing only one prefix:        3493 (1893 cidr, 1600 classful)
      
      Largest number of  cidr routes:                    707 announced by  AS701
      Largest number of classful routes:                 984 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 21Jan00 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS271        384      142      242   63.0%   BCnet Backbone
      AS7046       410      267      143   34.9%   UUNET-CUSTOMER
      AS9269       135       25      110   81.5%   Hong Kong CTI
      AS2609       125       16      109   87.2%   EUnet-TN
      AS1221       623      516      107   17.2%   TELSTRA-AS
      AS7657       285      185      100   35.1%   The Internet Group Limited
      AS7545       153       60       93   60.8%   TPG Internet Pty Ltd
      AS6429       206      114       92   44.7%   RDC-INTERNET
      AS4293       256      164       92   35.9%   Internal ASN for C&W
      AS2715       156       65       91   58.3%   REDERIO-AS
      AS174        563      479       84   14.9%   Performance Systems International
      AS7496       119       39       80   67.2%   Power Up
      AS705        270      193       77   28.5%   ALTERNET-AS
      AS577        253      177       76   30.0%   Bell Nexxia Backbone
      AS3749       135       61       74   54.8%   TECNET
      AS9304        94       23       71   75.5%   Hutchcity
      AS3602       315      249       66   21.0%   Sprint Canada Inc.
      AS4200       170      105       65   38.2%   AGIS (Apex Global Information Ser
      AS1727       138       76       62   44.9%   MRMS-WEST
      AS816        244      185       59   24.2%   UUNET Canada (ASN-UUNETCA-AS4)
      AS4740       343      285       58   16.9%   Ozemail Pty Ltd (ASN-OZEMAIL)
      AS7260       103       46       57   55.3%   NORLIGHT
      AS209        377      325       52   13.8%   Qwest Communications
      AS4151        94       48       46   48.9%   USDA Internet Access Network
      AS684         89       44       45   50.6%   Manitoba Regional Network Backbon
      AS4755       120       77       43   35.8%   Videsh Sanchar Nigam Ltd. India
      AS701        984      942       42    4.3%   Alternet
      AS7568        56       16       40   71.4%   C.S. Communications Co., Ltd.
      AS3549       154      115       39   25.3%   Frontier GlobalCenter
      AS11127      124       85       39   31.5%   UNKNOWN
      
      
      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
      *             APOPS: Asia Pacific Operations Forum              *
      * To unsubscribe: send "unsubscribe" to apops-request at apnic dot net *