[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, 14 Feb 2003 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
              07-02-03    118526       85124
              08-02-03    118568       85173
              09-02-03    118579       85149
              10-02-03    118627       85137
              11-02-03    118637       85198
              12-02-03    118760       85310
              13-02-03    118989       85108
              14-02-03    119071       85326
      
      
      AS Summary
               14555  Number of ASes in routing system
                5721  Number of ASes announcing only one prefix
                1571  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').
      
       --- 14Feb03 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     119071    85433    33638    28.3%   All ASes
      
      AS3908      1056      565      491    46.5%   SUPERNETASBLK SuperNet, Inc.
      AS18566      474        7      467    98.5%   COVAD Covad Communications
      AS4151       523      102      421    80.5%   USDA-1 USDA
      AS701       1571     1161      410    26.1%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS7018      1425     1033      392    27.5%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS4323       528      169      359    68.0%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7843       569      240      329    57.8%   ADELPHIA-AS Adelphia Corp.
      AS6197       476      157      319    67.0%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS1221      1130      824      306    27.1%   ASN-TELSTRA Telstra Pty Ltd
      AS7046       566      274      292    51.6%   UUNET-CUSTOMER UUNET
                                                     Technologies, Inc.
      AS4355       405      119      286    70.6%   ERMS-EARTHLNK EARTHLINK, INC
      AS1239       958      674      284    29.6%   SPRINTLINK Sprint
      AS6347       368       85      283    76.9%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS22927      295       14      281    95.3%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS705        446      196      250    56.1%   ASN-ALTERNET UUNET
                                                     Technologies, Inc.
      AS4814       261       15      246    94.3%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS1          663      435      228    34.4%   GNTY-1 Genuity
      AS6198       434      220      214    49.3%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS22291      242       32      210    86.8%   CHARTER-LA Charter
                                                     Communications
      AS17676      224       24      200    89.3%   GIGAINFRA XTAGE CORPORATION
      AS690        498      308      190    38.2%   MERIT-AS-27 Merit Network Inc.
      AS4134       306      119      187    61.1%   ERX-CHINALINK Data
                                                     Communications Bureau
      AS209        523      337      186    35.6%   ASN-QWEST Qwest
      AS2386       439      259      180    41.0%   INS-AS AT&T Data
                                                     Communications Services
      AS2048       260       87      173    66.5%   LANET-1 State of Louisiana
      AS852        606      446      160    26.4%   ASN852 Telus Advanced
                                                     Communications
      AS17557      339      188      151    44.5%   PKTELECOM-AS-AP Pakistan
                                                     Telecom
      AS22773      177       27      150    84.7%   CCINET-2 Cox Communications
                                                     Inc. Atlanta
      AS6140       285      136      149    52.3%   IMPSAT-USA ImpSat
      AS6327       186       40      146    78.5%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      
      Total      16233     8293     7940    48.9%   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