[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, 4 Apr 2003 22:00:00 +1000 (EST)
  • Cc: nanog at merit dot edu, eof-list at ripe dot net, apops at apops dot net, routing-wg at ripe dot net, afnog at afnog dot org
  • List-archive: <http://www.apnic.net/mailing-lists/apops/>
  • List-help: <mailto:apops-request@apops.net?subject=help>
  • List-id: Asia Pacific Operators Forum <apops.apops.net>
  • List-post: <mailto:apops@apops.net>
  • List-subscribe: <http://mailman.apnic.net/mailman/listinfo/apops>,<mailto:apops-request@apops.net?subject=subscribe>
  • List-unsubscribe: <http://mailman.apnic.net/mailman/listinfo/apops>,<mailto:apops-request@apops.net?subject=unsubscribe>
  • Sender: apops-admin@apops.net
    • 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
              29-03-03    121022       86344
              30-03-03    121098       86444
              30-03-03    121192       86322
              31-03-03    121111       86222
              01-04-03    121043       86425
              02-04-03    121298       86692
              03-04-03    121290       86674
              04-04-03    121205       86508
      
      
      AS Summary
               14872  Number of ASes in routing system
                5874  Number of ASes announcing only one prefix
                1557  Largest number of prefixes announced by an AS
                      AS701  : ALTERNET-AS UUNET Technologies, Inc.
            73080832  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').
      
       --- 04Apr03 ---
      ASnum    NetsNow NetsAggr  NetGain   % Gain   Description
      
      Table     121023    86497    34526    28.5%   All ASes
      
      AS4151       612       75      537    87.7%   USDA-1 USDA
      AS18566      516       12      504    97.7%   COVAD Covad Communications
      AS701       1557     1113      444    28.5%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS7843       621      189      432    69.6%   ADELPHIA-AS Adelphia Corp.
      AS3908       956      529      427    44.7%   SUPERNETASBLK SuperNet, Inc.
      AS7018      1349      958      391    29.0%   ATT-INTERNET4 AT&T WorldNet
                                                     Services
      AS4323       565      181      384    68.0%   TW-COMM Time Warner
                                                     Communications, Inc.
      AS7132       727      409      318    43.7%   SBIS-AS SBC Internet Services
                                                     - Southwest
      AS1221      1108      811      297    26.8%   ASN-TELSTRA Telstra Pty Ltd
      AS1239       960      679      281    29.3%   SPRINTLINK Sprint
      AS22927      295       14      281    95.3%   AR-TEAR2-LACNIC TELEFONICA DE
                                                     ARGENTINA
      AS6198       460      185      275    59.8%   BATI-MIA BellSouth Network
                                                     Solutions, Inc
      AS6197       475      202      273    57.5%   BATI-ATL BellSouth Network
                                                     Solutions, Inc
      AS4355       380      110      270    71.1%   ERMS-EARTHLNK EARTHLINK, INC
      AS705        459      203      256    55.8%   ALTERNET-AS UUNET
                                                     Technologies, Inc.
      AS4814       269       15      254    94.4%   CHINANET-BEIJING-AP China
                                                     Telecom (Group)
      AS2386       499      277      222    44.5%   INS-AS AT&T Data
                                                     Communications Services
      AS17676      235       28      207    88.1%   GIGAINFRA XTAGE CORPORATION
      AS27364      266       65      201    75.6%   ACS-INTERNET Armstrong Cable
                                                     Services
      AS11305      340      146      194    57.1%   INTERLAND-NET1 Interland
                                                     Incorporated
      AS22773      202        8      194    96.0%   CCINET-2 Cox Communications
                                                     Inc. Atlanta
      AS209        523      337      186    35.6%   ASN-QWEST Qwest
      AS690        502      318      184    36.7%   MERIT-AS-27 Merit Network Inc.
      AS22291      240       60      180    75.0%   CHARTER-LA Charter
                                                     Communications
      AS3561       515      338      177    34.4%   CWUSA Cable & Wireless USA
      AS2048       258       87      171    66.3%   LANET-1 State of Louisiana
      AS6347       368      201      167    45.4%   DIAMOND SAVVIS Communications
                                                     Corporation
      AS1          639      483      156    24.4%   GNTY-1 Genuity
      AS6327       190       34      156    82.1%   SHAWFIBER Shaw Fiberlink
                                                     Limited
      AS6140       295      152      143    48.5%   IMPSAT-USA ImpSat
      
      Total      16381     8219     8162    49.8%   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 apops dot net
        routing-wg at ripe dot net
        afnog at afnog dot org