[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, 27 Sep 2002 22:00:01 +1000 (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
  • Sender: owner-apops@lists.apnic.net
    • This report has been generated at Fri Sep 27 20:32:43 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://www.cidr-report.org for a current version of this report.
      
      Recent Table History
              Date      Prefixes    CIDR Agg
              20-09-02    121329       87082
              21-09-02    121481       87337
              22-09-02    121438       87731
              23-09-02    121323       87980
              24-09-02    121407       88246
              25-09-02    121566       88349
              26-09-02    121459       87822
              27-09-02    122059       87558
      
      Possible Bogus Routes
      
              7.1.1.0/30           AS12357 COMUNITEL Comunitel Global Autonomous System
              10.5.5.0/30          AS11537 ABILENE University Corporation for Advanced Internet Development
              10.11.11.0/30        AS11537 ABILENE University Corporation for Advanced Internet Development
              10.33.0.0/23         AS174   PSINET PSINet Inc.
              10.33.8.0/24         AS174   PSINET PSINet Inc.
              39.0.0.0/8           AS4554  EP0-BLK-ASNBLOCK-4 Exchange Point Blocks
      
      
      AS Summary
               13979  Number of ASes in routing system
                5289  Number of ASes announcing only one prefix
                1816  Largest number of prefixes announced by an AS
                      AS209  : ASN-QWEST Qwest
            73220608  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').
      
       --- 27Sep02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     121705    87359    34346    28.2%   All ASes
      
      AS209       1816     1038      778    42.8%   ASN-QWEST Qwest
      AS3908      1124      621      503    44.8%   SUPERNETASBLK SuperNet, Inc.
      AS701       1786     1286      500    28.0%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS2548      1586     1123      463    29.2%   ICIX-MD-AS Business Internet,
                                                     Inc.
      AS7132       602      140      462    76.7%   SBIS-AS Southwestern Bell
                                                     Internet Services
      AS7018      1359      959      400    29.4%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS7843       711      341      370    52.0%   ADELPHIA-AS Adelphia Corp.
      AS1221      1304      938      366    28.1%   ASN-TELSTRA Telstra Pty Ltd
      AS4323       645      295      350    54.3%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS852        756      458      298    39.4%   ASN852 Telus Advanced
                                                     Communications
      AS6197       382       97      285    74.6%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS7046       590      316      274    46.4%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS18566      272        4      268    98.5%   COVAD Covad Communications
      AS174        593      330      263    44.4%   PSINET PSINet Inc.
      AS4151       279       32      247    88.5%   USDA-1 USDA
      AS4355       382      144      238    62.3%   ERMS-EARTHLNK EARTHLINK, INC
      AS1          672      442      230    34.2%   GNTY-1 Genuity
      AS6347       397      170      227    57.2%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS4814       255       36      219    85.9%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)Beijing
                                                     Telecom CompanyBeijing China
      AS705        408      198      210    51.5%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS1580       210       11      199    94.8%   HQ, 5th Signal Command
      AS22927      215       20      195    90.7%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS690        517      324      193    37.3%   NSFNET-T3-RT-AS Merit Network
                                                     Inc.
      AS1239      1110      930      180    16.2%   SprintLink Sprint
      AS2386       421      243      178    42.3%   INS-AS AT&T Data
                                                     Communications Services
      AS3356       389      214      175    45.0%   LEVEL3 Level 3 Communications,
                                                     LLC
      AS6595       232       60      172    74.1%   DODDSEUR DoD Education
                                                     Activity Network Assistance
                                                     Center
      AS1791       184       21      163    88.6%   SPRINTLINK3 Sprint Government
                                                     Systems Division
      AS4134       302      139      163    54.0%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS6327       180       20      160    88.9%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      
      Total      19679    10950     8729    44.4%   Top 30 total
      
      
      
      Please see http://www.cidr-report.org for the full report
      
      ------------------------------------
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