Hardware design and implementation issues associated with very-large-capacity asynchronous transfer mode (ATM) switching fabrics having terabit/second throughputs are discussed. The fabrics are based on the rerouting network, whose interconnection architecture is transformed into a sophisticated representation suitable for system partitioning and LSI implementation. The board-to-board interconnection bottleneck is removed by multigigabit/second optical interconnections. A high-speed switching LSI circuit has been fabricated and 2.8-Gb/s optical interconnect modules have been designed to show the feasibility of the proposed fabrics.
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