[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, 20 Sep 2002 22:00:01 +1000 (EST)
  • Sender: owner-apops@lists.apnic.net
    • This report has been generated at Mon Sep 16 18:33:13 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    CIDR Agg
              09-09-02    121168       88703
              10-09-02    121129       88787
              11-09-02    121290       88946
              12-09-02    121145       87146
              13-09-02    121338       87745
              14-09-02    121318       87720
              15-09-02    121238       87859
              16-09-02    122134       87830
      
      Possible Bogus Routes
      
              39.0.0.0/8           AS4554  EP0-BLK-ASNBLOCK-4 Exchange Point Blocks
      
      
      AS Summary
               13914  Number of ASes in routing system
                5301  Number of ASes announcing only one prefix
                1804  Largest number of prefixes announced by an AS
                      AS209  : ASN-QWEST Qwest
            73154816  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').
      
       --- 16Sep02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     121976    88656    33320    27.3%   All ASes
      
      AS209       1804     1042      762    42.2%   ASN-QWEST Qwest
      AS3908      1133      650      483    42.6%   SUPERNETASBLK SuperNet, Inc.
      AS2548      1581     1127      454    28.7%   ICIX-MD-AS Business Internet,
                                                     Inc.
      AS7132       601      183      418    69.6%   SBIS-AS Southwestern Bell
                                                     Internet Services
      AS701       1762     1351      411    23.3%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS7018      1349      959      390    28.9%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS1221      1301      939      362    27.8%   ASN-TELSTRA Telstra Pty Ltd
      AS4323       645      307      338    52.4%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7046       607      312      295    48.6%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS6197       383       97      286    74.7%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS852        737      456      281    38.1%   ASN852 Telus Advanced
                                                     Communications
      AS7843       664      386      278    41.9%   ADELPHIA-AS Adelphia Corp.
      AS18566      270        4      266    98.5%   COVAD Covad Communications
      AS4151       284       32      252    88.7%   USDA-1 USDA
      AS1          682      449      233    34.2%   GNTY-1 Genuity
      AS6347       396      180      216    54.5%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS4814       233       34      199    85.4%   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      170      190    52.8%   ERMS-EARTHLNK EARTHLINK, INC
      AS1239       851      662      189    22.2%   SprintLink Sprint
      AS2386       418      233      185    44.3%   INS-AS AT&T Data
                                                     Communications Services
      AS4134       302      118      184    60.9%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS6595       244       74      170    69.7%   DODDSEUR DoD Education
                                                     Activity Network Assistance
                                                     Center
      AS3356       392      226      166    42.3%   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.
      AS376        341      184      157    46.0%   RISQ-AS Reseau
                                                     Interordinateurs Scientique
                                                     Quebecois (RISQ)
      AS17676      220       65      155    70.5%   GIGAINFRA APNIC ASN block
      AS6539       350      200      150    42.9%   GROUPTLCOM GT Group Telecom
                                                     Services Corp.
      AS577        424      275      149    35.1%   BACOM Bell Advanced
                                                     Communications Inc.
      
      Total      19208    11071     8137    42.4%   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 lists dot apnic dot net
        routing-wg at ripe dot net
        afnog at afnog dot org
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