Construction of a wide area collaboration by joining public ATM networks and CATV networks

摘要

We propose a wide area collaboration that organically joins CATV and ATM networks which have spread over a large area. CATV is a local network that offers broadcast services and high speed network services. An ATM network is a network that is high speed, covers a large area and has multimedia capabilities. This type of network is being used for the next generation Internet. A collaboration between end users could be developed by not only physically connecting CATV and wide area ATM, but also by combining the multimedia telecommunication abilities of ATM, the end user oriented broadcast services and high speed network services. Our experiment proposes an architecture for this wide area collaboration as well as constructed an architecture between local CATV and a wide area ATM network made of Gifu Highway and Japan Gigabit Network. In addition, we report about: (1) Experiment to distribute local video contents using multicast (2) Experiment to distribute contents using a wide area VOD. (3) Report about the possibility of a collaboration using an experimental real time information board that joins SMTP-CATV broadcast interfaces.