[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, 24 Mar 2000 12:00:03 -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 Mar 24 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            A summary of the last weeks changes in terms of withdrawn and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 24Mar00
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      290200	73317
      010300	73424
      020300	73040
      140300	72929
      210300	73882
      220300	74110
      230300	73692
      240300	74204
      
      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 103.10.0.0/16 from AS209
      *** Bogus 172.16.250.0/24 from AS8642
      *** Bogus 219.91.160.0/22 from AS7742
      *** Bogus 219.91.164.0/23 from AS7742
      
      AS Summary
      ----------
      
      Number of ASes in routing system:                 7017
      
      Number of ASes announcing only one prefix:        3864 (2101 cidr, 1763 classful)
      
      Largest number of  cidr routes:                    919 announced by  AS701
      Largest number of classful routes:                1034 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 24Mar00 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS271        436      156      280   64.2%   BCnet Backbone
      AS1221       691      532      159   23.0%   TELSTRA-AS
      AS7046       452      307      145   32.1%   COQUI-NET PRTC Internet
      AS9269       159       27      132   83.0%   Hong Kong CTI
      AS9706       151       22      129   85.4%   Pusan Metropolitan City Office of
      AS2609       121       23       98   81.0%   EUnet-TN
      AS7657       269      174       95   35.3%   The Internet Group Limited
      AS7545       154       61       93   60.4%   TPG Internet Pty Ltd
      AS705        304      215       89   29.3%   ALTERNET-AS
      AS174        558      470       88   15.8%   Performance Systems International
      AS7496       124       39       85   68.5%   Power Up
      AS4293       285      200       85   29.8%   Internal ASN for C&W
      AS6429       202      119       83   41.1%   RDC-INTERNET
      AS9304       107       27       80   74.8%   Hutchcity
      AS577        248      172       76   30.6%   Bell Backbone
      AS9557        91       23       68   74.7%   Pakistan Telecommunication Compan
      AS209        425      359       66   15.5%   Qwest Communications
      AS3602       306      242       64   20.9%   Sprint Canada Inc.
      AS3749       121       60       61   50.4%   TECNET
      AS1727       151       91       60   39.7%   MRMS-WEST
      AS7260       108       50       58   53.7%   NORLIGHT
      AS4740       335      277       58   17.3%   Ozemail Pty Ltd (ASN-OZEMAIL)
      AS701       1034      977       57    5.5%   Alternet
      AS724        194      138       56   28.9%   DLA-ASNBLOCK-AS
      AS816        327      272       55   16.8%   UUNET Canada (ASN-UUNETCA-AS4)
      AS7029        97       46       51   52.6%   ALLTELNET
      AS4200       140       92       48   34.3%   AGIS (Apex Global Information Ser
      AS6595        88       42       46   52.3%   DODDSEUR
      AS7568        66       21       45   68.2%   C.S. Communications Co., Ltd.
      AS684         85       40       45   52.9%   Manitoba Regional Network Backbon
      
      
      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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