[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 Dec 1999 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 Dec 24 12:00:00 PST 1999
      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            A summary of the last weeks changes in terms of withdrawn and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 24Dec99
      
      
      0) General Status
      
      Table History
      -------------
      
      Date	Prefixes
      171299	68465
      181299	68472
      191299	68445
      201299	68620
      211299	68566
      221299	68665
      231299	68991
      241299	69384
      
      Check http://www.employees.org/~tbates/cidr.plot.html for a plot
      of the table history.
      
      
      Possible Bogus Routes
      ---------------------
      
      *** Bogus 64.4.64.0/19 from AS7398
      *** Bogus 64.4.128.0/19 from AS13932
      *** Bogus 64.4.192.0/19 from AS6214
      *** Bogus 64.5.0.0/19 from AS14107
      *** Bogus 64.5.64.0/19 from AS6601
      *** Bogus 64.6.32.0/20 from AS13740
      *** Bogus 64.6.64.0/20 from AS10726
      *** Bogus 64.6.96.0/20 from AS8049
      *** Bogus 64.6.160.0/23 from AS11354
      *** Bogus 64.6.160.0/20 from AS11354
      *** Bogus 64.6.162.0/24 from AS11354
      *** Bogus 64.6.192.0/21 from AS14215
      *** Bogus 64.6.200.0/23 from AS14215
      *** Bogus 64.6.204.0/23 from AS14215
      *** Bogus 64.6.206.0/23 from AS14215
      *** Bogus 64.7.0.0/24 from AS6461
      *** Bogus 64.7.1.0/24 from AS3967
      *** Bogus 64.7.2.0/23 from AS3967
      *** Bogus 64.7.4.0/23 from AS3967
      *** Bogus 64.7.32.0/20 from AS8010
      *** Bogus 64.7.64.0/20 from AS2914
      *** Bogus 64.7.128.0/20 from AS11647
      *** Bogus 64.7.160.0/20 from AS13549
      *** Bogus 64.8.0.0/20 from AS7843
      *** Bogus 64.8.24.0/21 from AS7843
      *** Bogus 64.9.0.0/19 from AS7843
      *** Bogus 64.9.32.0/20 from AS701
      *** Bogus 64.9.48.0/20 from AS1239
      *** Bogus 64.9.128.0/18 from AS5003
      *** Bogus 64.10.0.0/16 from AS816
      *** Bogus 64.10.10.0/24 from AS705
      *** Bogus 64.10.11.0/24 from AS705
      *** Bogus 64.13.0.0/20 from AS6921
      *** Bogus 64.13.0.0/19 from AS6921
      *** Bogus 64.13.16.0/21 from AS6921
      *** Bogus 64.13.24.0/21 from AS6921
      *** Bogus 64.14.0.0/19 from AS3967
      *** Bogus 64.14.32.0/19 from AS3967
      *** Bogus 64.14.64.0/20 from AS3967
      *** Bogus 64.14.80.0/20 from AS3967
      *** Bogus 64.14.96.0/20 from AS3967
      *** Bogus 64.14.112.0/20 from AS3967
      *** Bogus 64.14.128.0/20 from AS3967
      *** Bogus 64.16.0.0/19 from AS14078
      *** Bogus 64.21.0.0/18 from AS8001
      *** Bogus 219.5.47.0 from AS2548
      *** Bogus 219.91.160.0/22 from AS7742
      *** Bogus 219.91.164.0/23 from AS7742
      
      AS Summary
      ----------
      
      Number of ASes in routing system:                 6329
      
      Number of ASes announcing only one prefix:        3363 (1845 cidr, 1518 classful)
      
      Largest number of  cidr routes:                    674 announced by  AS701
      Largest number of classful routes:                 959 announced by  AS701
      
      
      
      1) Gains by aggregating at the origin AS level
      
       --- 24Dec99 ---
      ASnum    NetsNow NetsCIDR  NetGain  % Gain   Description
      
      AS271        383      141      242   63.2%   BCnet Backbone
      AS7046       400      258      142   35.5%   UUNET-CUSTOMER
      AS2609       126       11      115   91.3%   EUnet-TN
      AS9269       134       21      113   84.3%   Hong Kong CTI
      AS1221       638      525      113   17.7%   TELSTRA-AS
      AS7657       274      178       96   35.0%   The Internet Group Limited
      AS7545       153       60       93   60.8%   TPG Internet Pty Ltd
      AS1653       129       38       91   70.5%   SUNET Swedish University Network
      AS6429       203      116       87   42.9%   RDC-INTERNET
      AS4293       238      151       87   36.6%   Internal ASN for C&W
      AS174        567      482       85   15.0%   Performance Systems International
      AS9706       104       23       81   77.9%   Pusan Metropolitan City Office of
      AS7496       121       41       80   66.1%   Power Up
      AS577        259      181       78   30.1%   Bell Canada Backbone
      AS3749       135       62       73   54.1%   TECNET
      AS705        229      163       66   28.8%   ALTERNET-AS
      AS4200       171      105       66   38.6%   AGIS (Apex Global Information Ser
      AS9304        78       20       58   74.4%   Hutchcity
      AS4740       342      284       58   17.0%   Ozemail Pty Ltd (ASN-OZEMAIL)
      AS816        234      178       56   23.9%   UUNET Canada (ASN-UUNETCA-AS4)
      AS209        346      291       55   15.9%   Qwest Communications
      AS684         92       46       46   50.0%   Manitoba Regional Network Backbon
      AS1          522      482       40    7.7%   GTE Internetworking
      AS4755       109       70       39   35.8%   Videsh Sanchar Nigam Ltd. India
      AS701        959      921       38    4.0%   Alternet
      AS6528        45        7       38   84.4%   WORLD-LYNX
      AS7390        50       14       36   72.0%   NLSLAN
      AS7029        77       41       36   46.8%   ALLTELNET
      AS6172       150      114       36   24.0%   HOME-NET-1
      AS1727       117       82       35   29.9%   MRMS-WEST
      
      
      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 *