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Geoff Huston

Comments to: cidr-reports@potaroo.net


IPv6 CIDR REPORT for 9 Mar 10

Report Sections:

This report is generated from an analysis of the BGP routing table within AS2.0 (Route-Views), and was produced at Tue Mar 9 20:15:33 2010 AEST.

Status Summary

Table History


        Date      Prefixes    CIDR Agg
        02-03-10      2771        2491
        03-03-10      2769        2487
        04-03-10      2772        2500
        05-03-10      2779        2498
        06-03-10      2785        2509
        07-03-10      2786        2508
        08-03-10      2786        2508
        09-03-10      2792        2492

 

AS Summary


          2043  Number of ASes in routing system
          1706  Number of ASes announcing only one prefix
            34  Largest number of prefixes announced by an AS
                AS1237 : KREONET-AS-KR Korea Institute of Science and Technology Information
      35188667056128 (/19.00) Largest address span announced by an AS (/64s)
                AS5511 : OPENTRANSIT France Telecom - Orange - Worldwide IP Backbone

Aggregation Summary


The algorithm used in this report proposes aggregation only when there is a precise match using AS path so as to preserve traffic transit policies. 

         --- 09Mar10 ---
        ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

        Table       2741     2489      252     9.2%   All ASes

        AS42          21        5       16    76.2%   WOODYNET-1 - WoodyNet
        AS23902       16        1       15    93.8%   VNNIC-AS-VN Vietnam Internet network information center (VNNIC)
        AS23947       16        1       15    93.8%   CEPATNET-AS-ID Internet Service Provider PT.Mora Telematika Indonesia
        AS1221        14        3       11    78.6%   ASN-TELSTRA Telstra Pty Ltd
        AS17821       12        1       11    91.7%   APNICTRAININGLAB-AS-AP APNIC TRAINING LAB
        AS71          16        7        9    56.2%   HP-INTERNET-AS Hewlett-Packard Company
        AS15169       24       15        9    37.5%   GOOGLE - Google Inc.
        AS33517       13        5        8    61.5%   DYNDNS - Dynamic Network Services, Inc.
        AS13768       10        3        7    70.0%   PEER1 - Peer 1 Network Inc.
        AS40009       16        9        7    43.8%   BITGRAVITY - BitGravity, Inc.
        AS15696        7        1        6    85.7%   ARIAN-AS Arian Rasaneh Pars
        AS37944       12        6        6    50.0%   CNNIC-CSTNET-AP CHINA SCIENCE AND TECHNOLOGY NETWORK
        AS3949        13        8        5    38.5%   NTTA-3946 - NTT America, Inc.
        AS27678        6        1        5    83.3%   NIC Chile
        AS7587         6        2        4    66.7%   ACCESSNET DA-NET (Data-Digital-Dialing Access) Jakarta
        AS17451        6        2        4    66.7%   BIZNET-AS-AP BIZNET ISP
        AS22351        7        3        4    57.1%   INTELSAT Intelsat Global BGP Routing Policy
        AS38759        5        1        4    80.0%   AIX-NAP-AS2-ID TRANSMEDIA INDONESIA, PT
        AS39117        5        1        4    80.0%   PLACENETFR-AS Placenet.fr AS NUMBER
        AS271          4        1        3    75.0%   BCNET-AS - BCnet
        AS1837         5        2        3    60.0%   NC3A NATO C3 Agency
        AS9503        10        7        3    30.0%   FX-PRIMARY-AS FX Networks Limited
        AS9829         8        5        3    37.5%   BSNL-NIB National Internet Backbone
        AS18779        5        2        3    60.0%   EGIHOSTING - EGIHosting
        AS21011        4        1        3    75.0%   TOPNET "TOP NET" PJSC
        AS22937        4        1        3    75.0%   SHELDON-AS-1 - ACT USA
        AS27912        4        1        3    75.0%   UNIVERSIDAD TECNOLOGICA CENTROAMERICANA
        AS31477        4        1        3    75.0%   DUOCAST-AS Duocast
        AS45147        5        2        3    60.0%   NAPINFO-TRANSIT-AS-AP PT. NAP Info Lintas Nusa
        AS101          4        2        2    50.0%   WASH-NSF-AS - University of Washington

        Total        282      100      182    64.5%   Top 30 total




        Top 20 Route Count per Originating AS
        Prefixes ASnum   AS Description
              34 AS1237  KREONET-AS-KR Korea Institute of Science and Technology Information
              32 AS12041 AFILIAS-NST Afilias Limited
              30 AS1239  SPRINTLINK - Sprint
              24 AS15169 GOOGLE - Google Inc.
              21 AS42    WOODYNET-1 - WoodyNet
              16 AS71    HP-INTERNET-AS Hewlett-Packard Company
              16 AS23902 VNNIC-AS-VN Vietnam Internet network information center (VNNIC)
              16 AS23947 CEPATNET-AS-ID Internet Service Provider PT.Mora Telematika Indonesia
              16 AS40009 BITGRAVITY - BitGravity, Inc.
              15 AS7575  AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
              15 AS17832 SIXNGIX-AS-KR Korea Internet Security Agency
              14 AS1221  ASN-TELSTRA Telstra Pty Ltd
              13 AS209   ASN-QWEST - Qwest Communications Company, LLC
              13 AS3949  NTTA-3946 - NTT America, Inc.
              13 AS33517 DYNDNS - Dynamic Network Services, Inc.
              12 AS17821 APNICTRAININGLAB-AS-AP APNIC TRAINING LAB
              12 AS37944 CNNIC-CSTNET-AP CHINA SCIENCE AND TECHNOLOGY NETWORK
              11 AS4637  REACH Reach Network Border AS
              11 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
              10 AS9503  FX-PRIMARY-AS FX Networks Limited

Last Week's Changes


This a daily snapshot of changes in routes being withdrawn and added. The deltas are calculated over a rolling 7 day period. Please bear in mind this is purely a "snapshot" and a large flucuation could be caused by a connectivity problem, for example.