Router unit and routing network for determining an output port b

Details Router unit and routing network for determining an output port b Router unit and routing network for determining an output port b

1983-06-21

1987-01-20

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

34082552, H04Q 1104

Patent

active

046384758

ABSTRACT:
In a router unit (20) for use in supplying an input packet (PI) from an input port (I) to an output port (O) with reference to a destination bit series included in the input packet, each input buffer (22) divides the destination bit series into a plurality of partial bit series specified by series positions. A predetermined one of the series positions is assigned to the router unit and is represented by a position signal (PS) to select the partial bit series from the predetermined series position. An output buffer (46) is determined in consideration of the selected partial bit series and is loaded with the input packet. The input packet is sent from the output buffer to the output port as an output packet (PO) to protect the input packet from conflicting with another input packet at the output port. A plurality of the router units may be included in a plurality of stages each of which is given the position signal different from that of the other stages. Alternatively, each router unit may comrise a plurality of code substitution circuit for substituting an input port code for the specified partial bit series to specify an originating input port.

REFERENCES:
patent: 4081612 (1978-03-01), Hafner
patent: 4335456 (1982-06-01), Gaiser et al.
patent: 4475188 (1984-10-01), Wilson et al.
patent: 4510493 (1985-04-01), Bux et al.

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