[apops] The Cidr Report

  • To: cidr-report at potaroo dot net
  • Subject: [apops] The Cidr Report
  • From: cidr-report at potaroo dot net
  • Date: Fri, 29 Nov 2002 22:00:00 +1100 (EST)
  • Cc: nanog at merit dot edu, eof-list at ripe dot net, apops at lists dot apnic dot net, routing-wg at ripe dot net, afnog at afnog dot org
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    • The report analyses the BGP Routing Table of an AS4637 (Reach) router
      and generates a report on aggregation potential within the table.
      
      Check http://www.cidr-report.org/as4637 for a current version of this report.
      
      Recent Table History
              Date      Prefixes    CIDR Agg
              22-11-02    116795       84759
              23-11-02    117137       84733
              24-11-02    117342       84973
              25-11-02    117875       84933
              26-11-02    117560       85077
              27-11-02    117565       85161
              28-11-02    117576       84918
              29-11-02    117628       85008
      
      
      AS Summary
               14099  Number of ASes in routing system
                5541  Number of ASes announcing only one prefix
                2403  Largest number of prefixes announced by an AS
                      AS3908 : SUPERNETASBLK SuperNet, Inc.
            72949760  Largest address span announced by an AS (/32s)
                      AS568  : SUMNET-AS DISO-UNRRA
      
      
      Aggregation Summary
      The algorithm used in this report proposes aggregation only
      when there is a precise match using the AS path, so as 
      to preserve traffic transit policies. Aggregation is also
      proposed across non-advertised address space ('holes').
      
       --- 29Nov02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     117621    84999    32622    27.7%   All ASes
      
      AS3908      2403     1314     1089    45.3%   SUPERNETASBLK SuperNet, Inc.
      AS701       1714     1237      477    27.8%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS18566      377        5      372    98.7%   COVAD Covad Communications
      AS7018      1406     1038      368    26.2%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS7843       664      300      364    54.8%   ADELPHIA-AS Adelphia Corp.
      AS4323       526      184      342    65.0%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS6197       460      123      337    73.3%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS1221      1176      853      323    27.5%   ASN-TELSTRA Telstra Pty Ltd
      AS7046       585      296      289    49.4%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS6347       358       81      277    77.4%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS4355       403      136      267    66.3%   ERMS-EARTHLNK EARTHLINK, INC
      AS22927      275       20      255    92.7%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS1239       911      658      253    27.8%   SPRINTLINK Sprint
      AS6198       420      167      253    60.2%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS705        439      206      233    53.1%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS4814       248       15      233    94.0%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS1          663      440      223    33.6%   GNTY-1 Genuity
      AS4151       352      149      203    57.7%   USDA-1 USDA
      AS852        669      468      201    30.0%   ASN852 Telus Advanced
                                                     Communications
      AS17557      314      123      191    60.8%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS6595       243       58      185    76.1%   DODDSEUR DoD Education
                                                     Activity Network Assistance
                                                     Center
      AS4134       299      117      182    60.9%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS209        519      338      181    34.9%   ASN-QWEST Qwest
      AS17676      230       50      180    78.3%   GIGAINFRA XTAGE CORPORATION
      AS690        506      334      172    34.0%   MERIT-AS-27 Merit Network Inc.
      AS2048       260       88      172    66.2%   LANET-1 State of Louisiana
      AS6140       268      103      165    61.6%   IMPSAT-USA ImpSat
      AS6327       182       33      149    81.9%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS7132       215       67      148    68.8%   SBIS-AS Southwestern Bell
                                                     Internet Services
      AS2386       364      223      141    38.7%   INS-AS AT&T Data
                                                     Communications Services
      
      Total      17449     9224     8225    47.1%   Top 30 total
      
      
      
      Please see http://www.cidr-report.org for the full report
      
      ------------------------------------
      Copies of this report are mailed to:
        nanog at merit dot edu
        eof-list at ripe dot net
        apops at lists dot apnic dot net
        routing-wg at ripe dot net
        afnog at afnog dot org