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The Cidr Report

  • From: cidr-report
  • Date: Fri Dec 06 06:04:38 2002

This report has been generated at Fri Dec  6 21:44:40 2002 AEST.
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
        29-11-02    117628       84925
        30-11-02    117500       84864
        01-12-02    117450       84897
        02-12-02    117617       84818
        03-12-02    117623       84175
        04-12-02    116419       84197
        05-12-02    116693       84459
        06-12-02    116870       84561


AS Summary
         14128  Number of ASes in routing system
          5562  Number of ASes announcing only one prefix
          1716  Largest number of prefixes announced by an AS
                AS3908 : SUPERNETASBLK SuperNet, Inc.
      72949248  Largest address span announced by an AS (/32s)
                AS568  : SUMNET-AS DISO-UNRRA

Possible Bogus AS

        AS63000 Announced by: AS14522 EC-SASA-LACNIC SatNet S.A.


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').

 --- 06Dec02 ---
ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

Table     116820    84482    32338    27.7%   All ASes

AS3908      1716      975      741    43.2%   SUPERNETASBLK SuperNet, Inc.
AS701       1712     1227      485    28.3%   ALTERNET-AS UUNET
                                               Technologies, Inc.
AS18566      395        5      390    98.7%   COVAD Covad Communications
AS7018      1389     1034      355    25.6%   ATT-INTERNET4 AT&T WorldNet
                                               Services
AS4323       522      185      337    64.6%   TW-COMM Time Warner
                                               Communications, Inc.
AS7843       644      307      337    52.3%   ADELPHIA-AS Adelphia Corp.
AS6197       458      124      334    72.9%   BATI-ATL BellSouth Network
                                               Solutions, Inc
AS1221      1162      843      319    27.5%   ASN-TELSTRA Telstra Pty Ltd
AS4355       404      136      268    66.3%   ERMS-EARTHLNK EARTHLINK, INC
AS6347       351       83      268    76.4%   DIAMOND SAVVIS Communications
                                               Corporation
AS22927      289       22      267    92.4%   AR-TEAR2-LACNIC TELEFONICA DE
                                               ARGENTINA
AS1239       924      663      261    28.2%   SPRINTLINK Sprint
AS7046       584      323      261    44.7%   UUNET-CUSTOMER UUNET
                                               Technologies, Inc.
AS705        434      195      239    55.1%   ASN-ALTERNET UUNET
                                               Technologies, Inc.
AS4814       248       15      233    94.0%   CHINANET-BEIJING-AP China
                                               Telecom (Group)
AS1          663      439      224    33.8%   GNTY-1 Genuity
AS6198       417      198      219    52.5%   BATI-MIA BellSouth Network
                                               Solutions, Inc
AS4151       351      135      216    61.5%   USDA-1 USDA
AS17676      232       28      204    87.9%   GIGAINFRA XTAGE CORPORATION
AS852        653      464      189    28.9%   ASN852 Telus Advanced
                                               Communications
AS690        508      321      187    36.8%   MERIT-AS-27 Merit Network Inc.
AS4134       299      115      184    61.5%   ERX-CHINALINK Data
                                               Communications Bureau
AS6595       243       59      184    75.7%   DODDSEUR DoD Education
                                               Activity Network Assistance
                                               Center
AS209        520      338      182    35.0%   ASN-QWEST Qwest
AS2048       262       88      174    66.4%   LANET-1 State of Louisiana
AS6140       279      127      152    54.5%   IMPSAT-USA ImpSat
AS6327       183       34      149    81.4%   SHAWFIBER Shaw Fiberlink
                                               Limited
AS2386       374      229      145    38.8%   INS-AS AT&T Data
                                               Communications Services
AS17557      314      172      142    45.2%   PKTELECOM-AS-AP Pakistan
                                               Telecom
AS3215       309      169      140    45.3%   AS3215  France Telecom
                                               Transpac

Total      16839     9053     7786    46.2%   Top 30 total



Please see http://www.cidr-report.org for the full report

------------------------------------
Copies of this report are mailed to:
  nanog@merit.edu
  eof-list@ripe.net
  apops@lists.apnic.net
  routing-wg@ripe.net
  afnog@afnog.org




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