[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, 3 Jan 2003 22:00:01 +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
              27-12-02    117120       84759
              28-12-02    117172       84857
              29-12-02    117391       84760
              30-12-02    117247       84955
              31-12-02    117450       85024
              01-01-03    117552       85059
              02-01-03    117648       85132
              03-01-03    117672       85168
      
      
      AS Summary
               14290  Number of ASes in routing system
                5618  Number of ASes announcing only one prefix
                1610  Largest number of prefixes announced by an AS
                      AS701  : ALTERNET-AS UUNET Technologies, Inc.
            73047040  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').
      
       --- 03Jan03 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     117812    85155    32657    27.7%   All ASes
      
      AS3908      1173      689      484    41.3%   SUPERNETASBLK SuperNet, Inc.
      AS701       1610     1195      415    25.8%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS18566      414        5      409    98.8%   COVAD Covad Communications
      AS7018      1430     1029      401    28.0%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS4323       532      188      344    64.7%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7843       622      301      321    51.6%   ADELPHIA-AS Adelphia Corp.
      AS1221      1146      829      317    27.7%   ASN-TELSTRA Telstra Pty Ltd
      AS6197       455      150      305    67.0%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS1239       976      687      289    29.6%   SPRINTLINK Sprint
      AS6347       368       85      283    76.9%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS4355       407      136      271    66.6%   ERMS-EARTHLNK EARTHLINK, INC
      AS22927      289       22      267    92.4%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS7046       552      291      261    47.3%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS705        422      188      234    55.5%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS4814       246       15      231    93.9%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS6198       423      200      223    52.7%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS1          659      437      222    33.7%   GNTY-1 Genuity
      AS17676      231       26      205    88.7%   GIGAINFRA XTAGE CORPORATION
      AS22291      226       29      197    87.2%   CHARTER-LA Charter
                                                     Communications
      AS690        513      319      194    37.8%   MERIT-AS-27 Merit Network Inc.
      AS4151       325      134      191    58.8%   USDA-1 USDA
      AS6140       315      125      190    60.3%   IMPSAT-USA ImpSat
      AS209        517      335      182    35.2%   ASN-QWEST Qwest
      AS4134       290      108      182    62.8%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS852        627      446      181    28.9%   ASN852 Telus Advanced
                                                     Communications
      AS2048       254       84      170    66.9%   LANET-1 State of Louisiana
      AS2386       387      229      158    40.8%   INS-AS AT&T Data
                                                     Communications Services
      AS6327       185       34      151    81.6%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS17557      324      179      145    44.8%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS3215       313      174      139    44.4%   AS3215  France Telecom
                                                     Transpac
      
      Total      16231     8669     7562    46.6%   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