[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, 11 Apr 2003 22:00:01 +1000 (EST)
  • Cc: nanog at merit dot edu, eof-list at ripe dot net, apops at apops 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
              04-04-03    121205       86530
              05-04-03    121077       86591
              06-04-03    120820       86365
              07-04-03    120917       86463
              08-04-03    121020       86473
              09-04-03    121144       86561
              10-04-03    120942       86620
              11-04-03    121008       86701
      
      
      AS Summary
               14913  Number of ASes in routing system
                5884  Number of ASes announcing only one prefix
                1564  Largest number of prefixes announced by an AS
                      AS701  : ALTERNET-AS UUNET Technologies, Inc.
            73154560  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').
      
       --- 11Apr03 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     121213    86696    34517    28.5%   All ASes
      
      AS4151       691       75      616    89.1%   USDA-1 USDA
      AS7843       642      188      454    70.7%   ADELPHIA-AS Adelphia Corp.
      AS701       1564     1111      453    29.0%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS4323       567      167      400    70.5%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7132       802      414      388    48.4%   SBIS-AS SBC Internet Services
                                                     - Southwest
      AS3908       911      529      382    41.9%   SUPERNETASBLK SuperNet, Inc.
      AS7018      1351      976      375    27.8%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS1221      1107      797      310    28.0%   ASN-TELSTRA Telstra Pty Ltd
      AS1239       965      682      283    29.3%   SPRINTLINK Sprint
      AS6198       457      181      276    60.4%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS6197       476      202      274    57.6%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS705        487      215      272    55.9%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS22927      286       14      272    95.1%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS4355       373      115      258    69.2%   ERMS-EARTHLNK EARTHLINK, INC
      AS4814       270       16      254    94.1%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS17557      378      144      234    61.9%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS209        529      303      226    42.7%   ASN-QWEST Qwest
      AS2386       507      282      225    44.4%   INS-AS AT&T Data
                                                     Communications Services
      AS17676      237       29      208    87.8%   GIGAINFRA XTAGE CORPORATION
      AS27364      266       59      207    77.8%   ACS-INTERNET Armstrong Cable
                                                     Services
      AS11305      341      143      198    58.1%   INTERLAND-NET1 Interland
                                                     Incorporated
      AS22773      203        8      195    96.1%   CCINET-2 Cox Communications
                                                     Inc. Atlanta
      AS690        495      316      179    36.2%   MERIT-AS-27 Merit Network Inc.
      AS3561       513      335      178    34.7%   CWUSA Cable & Wireless USA
      AS6347       367      190      177    48.2%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS2048       254       84      170    66.9%   LANET-1 State of Louisiana
      AS22291      241       79      162    67.2%   CHARTER-LA Charter
                                                     Communications
      AS6327       190       34      156    82.1%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS7303       242       93      149    61.6%   AR-TAST-LACNIC Telecom
                                                     Argentina Stet-France Telecom
                                                     S.A.
      AS3215       321      175      146    45.5%   AS3215  France Telecom
                                                     Transpac
      
      Total      16033     7956     8077    50.4%   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 apops dot net
        routing-wg at ripe dot net
        afnog at afnog dot org