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New Generation Network Testbed JGN-X

Network Structure

The Overview of JGN-X Network

JGN-X network has the following network capabilities to allow various field tests as the largest testbed network in Japan.

  • On the layer 2 level:
    Network based on ethernet connectivity by layer 2 switches
  • On the layer 3 level:
    Network based on IP connectivity with IPv4/IPv6 dual stack capability

The equipments which consists the JGN-X network includes layer 2 switches and layer 3 routers, and has 22 access points nationwide.  Backbone networks which connects the backbone points consists of networks from 10Gbps to 40Gbps.  Other access points are connected by bandwidth such as 1Gbps.

Other JGN-X Network Testbeds

Other JGN-X networks are available for optical and international R&D activities.

Optical Testbed (which connects Koganei - Otemachi - Hakusan access points)

JGN-X provides optical testbed network environment, which allows experiments which uses optical transmissions up to terabit networks.

For details, please see the links below:

International Circuits

JGN-X promotes collaborative activities between Japanese researchers and researchers outside of Japan by the following.

  • US-JP line : Tokyo - Los Angeles
  • KR-JP line (APII) : Tokyo - Seoul
  • HK-JP line : Tokyo - Hong Kong
  • HK-SG line : Hong Kong - Singapore
  • SG-TH line : Singapore - Thailand

For details, please see the links below:

Operation and Maintenance of JGN-X Network

JGN-X NOC (Network Operation Center), located at Tokyo Otemachi (Chiyoda-ku) handles all of the operation and maintenance of JGN-X network, including installation procedures such as path creation, and maintenance procedures such as repairing networks on failures.

For details on each item, please refer to the links below.

  • National Information and Communications Technology (NICT)
  • ICT Testbed Coordination and Planning Office
    ICT Testbed Research and Development Promotion Center

    TEL:+81-3-3272-3060   FAX:+81-3-3272-3062   E-mail:jgncenter@jgn-x.jp
  • GetAdobeReader
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