[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, 20 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
              13-12-02    116860       84869
              14-12-02    117040       84854
              15-12-02    117512       84906
              16-12-02    117508       84871
              17-12-02    117485       84596
              18-12-02    116531       84555
              19-12-02    116615       84511
              20-12-02    116819       84486
      
      
      AS Summary
               14204  Number of ASes in routing system
                5600  Number of ASes announcing only one prefix
                1622  Largest number of prefixes announced by an AS
                      AS701  : ALTERNET-AS UUNET Technologies, Inc.
            73048064  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').
      
       --- 20Dec02 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     116934    84523    32411    27.7%   All ASes
      
      AS3908      1167      685      482    41.3%   SUPERNETASBLK SuperNet, Inc.
      AS701       1622     1205      417    25.7%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS7018      1425     1029      396    27.8%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS18566      393        5      388    98.7%   COVAD Covad Communications
      AS7843       624      279      345    55.3%   ADELPHIA-AS Adelphia Corp.
      AS4323       530      187      343    64.7%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS1221      1152      835      317    27.5%   ASN-TELSTRA Telstra Pty Ltd
      AS6197       453      149      304    67.1%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS6347       359       85      274    76.3%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS1239       948      676      272    28.7%   SPRINTLINK Sprint
      AS4355       403      132      271    67.2%   ERMS-EARTHLNK EARTHLINK, INC
      AS22927      289       22      267    92.4%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS7046       579      313      266    45.9%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS705        431      192      239    55.5%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS4814       249       15      234    94.0%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS1          664      441      223    33.6%   GNTY-1 Genuity
      AS6198       421      201      220    52.3%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS17676      230       29      201    87.4%   GIGAINFRA XTAGE CORPORATION
      AS22291      226       29      197    87.2%   CHARTER-LA Charter
                                                     Communications
      AS690        513      319      194    37.8%   MERIT-AS-27 Merit Network Inc.
      AS6140       314      121      193    61.5%   IMPSAT-USA ImpSat
      AS4134       293      106      187    63.8%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS4151       323      141      182    56.3%   USDA-1 USDA
      AS209        519      338      181    34.9%   ASN-QWEST Qwest
      AS852        622      442      180    28.9%   ASN852 Telus Advanced
                                                     Communications
      AS2048       262       88      174    66.4%   LANET-1 State of Louisiana
      AS6327       184       33      151    82.1%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS2386       370      225      145    39.2%   INS-AS AT&T Data
                                                     Communications Services
      AS17557      315      173      142    45.1%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS2686       225       87      138    61.3%   AS2686 AT&T Global Network
                                                     Services - EMEA
      
      Total      16105     8582     7523    46.7%   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