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Abstract

A digital network system accommodates a plurality of network protocols. The digital network system includes a backbone bus for communicating digital information. A first switching interface unit is coupled to the backbone bus and has at least one port connected to a first network. A second switching interface unit is also coupled to the backbone bus and has at least one port connected to a second network. The first and second interface units transferring digital information in first and second network protocols, respectively. First and second memories are coupled to the backbone bus and to the first and second switching interface units, respectively, and store digital information to be transferred between the switching interface units via the backbone bus. The first switching interface unit and the first memory are formed on a single substrate, and the second switching interface unit and the second memory are formed on a single substrate. A controller is coupled to the backbone bus and controls the transfer of digital information from the first switching interface unit to the second switching interface unit.

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First Claim