TeraNet is an experimental network which offers user access rates as high as one Gigabit per second (Gbps).The design principles of TeraNet incorporate three main concepts:a transmission medium that contains multiple channels,a system architecture that employs a multihop approach to routing packets,and a traffic control architecture that supports multiple traffic classes.The network contains a set of Network Interface Units(NIU) that are interconnected with passive optics.Each NIU is a two by two switch with an additional input and output port for user access.Output buffers and the bandwidth of the output links are shared according to a resource allocation concept called Asynchronous Time Sharing(ATS).The packet format and routing procedure are compatible with the emerging ATM standard.
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