[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, 13 Dec 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
              06-12-02    116870       84511
              07-12-02    116855       84559
              08-12-02    116930       84442
              09-12-02    116755       84596
              10-12-02    116879       84724
              11-12-02    117039       84740
              12-12-02    117133       84733
              13-12-02    116860       84827
      
      
      AS Summary
               14178  Number of ASes in routing system
                5599  Number of ASes announcing only one prefix
                1805  Largest number of prefixes announced by an AS
                      AS3908 : SUPERNETASBLK SuperNet, Inc.
            72982528  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').
      
       --- 13Dec02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     116935    84790    32145    27.5%   All ASes
      
      AS3908      1805     1063      742    41.1%   SUPERNETASBLK SuperNet, Inc.
      AS701       1676     1219      457    27.3%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS18566      419        5      414    98.8%   COVAD Covad Communications
      AS7018      1389     1014      375    27.0%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS4323       524      185      339    64.7%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS1221      1162      843      319    27.5%   ASN-TELSTRA Telstra Pty Ltd
      AS6197       456      141      315    69.1%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS7843       596      295      301    50.5%   ADELPHIA-AS Adelphia Corp.
      AS4355       405      136      269    66.4%   ERMS-EARTHLNK EARTHLINK, INC
      AS6347       352       85      267    75.9%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS7046       586      319      267    45.6%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS22927      289       22      267    92.4%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS1239       935      670      265    28.3%   SPRINTLINK Sprint
      AS705        434      195      239    55.1%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS4814       249       15      234    94.0%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS1          665      440      225    33.8%   GNTY-1 Genuity
      AS6198       420      201      219    52.1%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS17676      232       28      204    87.9%   GIGAINFRA XTAGE CORPORATION
      AS690        513      319      194    37.8%   MERIT-AS-27 Merit Network Inc.
      AS6140       314      121      193    61.5%   IMPSAT-USA ImpSat
      AS4151       326      135      191    58.6%   USDA-1 USDA
      AS4134       292      108      184    63.0%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS209        519      339      180    34.7%   ASN-QWEST Qwest
      AS852        625      445      180    28.8%   ASN852 Telus Advanced
                                                     Communications
      AS2048       260       88      172    66.2%   LANET-1 State of Louisiana
      AS6327       183       34      149    81.4%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS2386       377      232      145    38.5%   INS-AS AT&T Data
                                                     Communications Services
      AS17557      314      173      141    44.9%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS3215       308      170      138    44.8%   AS3215  France Telecom
                                                     Transpac
      AS702        807      670      137    17.0%   AS702  UUNET - Commercial IP
                                                     service provider in Europe
      
      Total      17432     9710     7722    44.3%   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