[apops] The Cidr Report

  • To: apops at lists dot apnic dot net
  • Subject: [apops] The Cidr Report
  • From: cidr-report at potaroo dot net
  • Date: Fri, 13 Sep 2002 22:00:01 +1000 (EST)
  • Sender: owner-apops@lists.apnic.net
    • This report has been generated at Fri Sep 13 20:32:14 2002 AEST.
      The report analyses the BGP Routing Table of the Route-Views router
      and generates a report on aggregation potential within the table.
      
      Check http://bgp.potaroo.net/cidr for a current version of this report.
      
      Recent Table History
              Date      Prefixes
              06-09-02    121201
              07-09-02    121195
              08-09-02    121134
              09-09-02    121168
              10-09-02    121129
              11-09-02    121290
              12-09-02    121145
              13-09-02    121338
      
      Possible Bogus Routes
      
              39.0.0.0/8           AS4554  EP0-BLK-ASNBLOCK-4 Exchange Point Blocks
      
      
      AS Summary
               13879  Number of ASes in routing system
                5303  Number of ASes announcing only one prefix
                1798  Largest number of prefixes announced by an AS
                      AS209  : ASN-QWEST Qwest
            73089280  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 not
      proposed across non-advertised address space ('holes').
      
       --- 13Sep02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     121140    87526    33614    27.7%   All ASes
      
      AS209       1798     1040      758    42.2%   ASN-QWEST Qwest
      AS3908      1134      633      501    44.2%   SUPERNETASBLK SuperNet, Inc.
      AS2548      1575     1125      450    28.6%   ICIX-MD-AS Business Internet,
                                                     Inc.
      AS7132       603      185      418    69.3%   SBIS-AS Southwestern Bell
                                                     Internet Services
      AS701       1761     1349      412    23.4%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS7018      1348      958      390    28.9%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS1221      1302      940      362    27.8%   ASN-TELSTRA Telstra Pty Ltd
      AS4323       648      300      348    53.7%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7843       674      374      300    44.5%   ADELPHIA-AS Adelphia Corp.
      AS6197       382       85      297    77.7%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS7046       612      316      296    48.4%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS852        738      457      281    38.1%   ASN852 Telus Advanced
                                                     Communications
      AS18566      270        4      266    98.5%   COVAD Covad Communications
      AS6347       396      139      257    64.9%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS4151       283       32      251    88.7%   USDA-1 USDA
      AS1          681      447      234    34.4%   GNTY-1 Genuity
      AS4814       229       30      199    86.9%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)Beijing
                                                     Telecom CompanyBeijing China
      AS690        519      326      193    37.2%   NSFNET-T3-RT-AS Merit Network
                                                     Inc.
      AS4355       360      172      188    52.2%   ERMS-EARTHLNK EARTHLINK, INC
      AS1239       844      657      187    22.2%   SprintLink Sprint
      AS9942       248       71      177    71.4%   COMINDICO-AP COMindico
                                                     Australia
      AS2386       416      240      176    42.3%   INS-AS AT&T Data
                                                     Communications Services
      AS4134       302      133      169    56.0%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS6595       246       78      168    68.3%   DODDSEUR DoD Education
                                                     Activity Network Assistance
                                                     Center
      AS3356       389      222      167    42.9%   LEVEL3 Level 3 Communications,
                                                     LLC
      AS1791       186       23      163    87.6%   SPRINTLINK3 Sprint Government
                                                     Systems Division
      AS11371      169        7      162    95.9%   UUNET-AS-11371 UUNET
                                                     Technologies, Inc.
      AS1564       162        4      158    97.5%   HQ, 5th Signal Command
      AS6327       171       16      155    90.6%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS17676      220       65      155    70.5%   GIGAINFRA APNIC ASN block
      
      Total      18666    10428     8238    44.1%   Top 30 total
      
      
      
      Please see http://bgp.potaroo.net/cidr for the full report
      
      ------------------------------------
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