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(Nikkei BP Group)



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  • Regional Carriers to Build Next-Generation IP Networks
  • February 18, 1999 (TOKYO) — Ten regional common carriers, including Tokyo Telecommunication Network Co., Ltd. (TTNet) and Osaka Media Port Corp. (OMP), announced that they will build networks based on Internet Protocol (IP).
    The regional carriers represent the third group of domestic Type-1 common carriers to announce a shift toward backbone infrastructures based on IP network technology.

    Similar moves had been announced by Japan Telecom Co., Ltd. (the PRISM network service), and by KDD Corp. (the KDD Terabit Highway or KTH21).

    The new regional IP network will be called the Powered IP Network (PIN). The ten regional carriers have already set up an umbrella organization called Power Nets Japan (PNJ).

    PNJ alliance members will collaborate in setting strategies for converting existing technologies to IP, for constructing next-generation networks and developing new services.

    PIN’s key technologies are IP and wavelength division multiplexing (WDM). In 2000, the PNJ group carriers will install WDM equipment on the optical-fiber cable that connects Tokyo, Nagoya and Osaka, and then begin “IP over WDM” trials.

    IP over WDM offers an inexpensive means of constructing broadband IP networks. That’s because it eliminates the synchronous optical network (SONET) transmission devices needed for the backbone portion in conventional networks.

    The PNJ alliance plans to deploy WDM over an expanded service area in 2001, and to start commercial services based on IP over WDM. By installing WDM on the optical-fiber cable that runs the length of the Japanese archipelago, PNJ aims to deliver a bandwidth of 100Gbps.

    And by linking their IP networks into PIN, the individual carriers in the PNJ alliance expect to boost the backbone transmission capacity for their own Internet access services.

    Future ideas may include PIN-based IP telephony services. However, because decisions about implementing and offering such services are to be made by each individual carrier, the details of the service menu are not yet clear. Telecom service fees also are not decided.

    It is uncertain how the advent of PIN will benefit consumers. But Japan’s major telecom carriers are making definite moves toward IP-based backbones.

    Related stories:
    ¥ Japan’s KDD to Construct IP-Based Backbone Network
    ¥ Japan Telecom, Nihon Cisco Systems to Begin IP Network Trials
    ¥ NTT Aims to be Fourth-Generation Carrier, VP Says

    (Nikkei Communications)



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