Multiplex communications – Wide area network – Packet switching
Patent
1995-03-21
1996-04-16
Kizou, Hassan
Multiplex communications
Wide area network
Packet switching
370859, 370 92, H04L 1224, H04L 1240
Patent
active
055089976
ABSTRACT:
Apparatus addresses 0A, 0B are respectively set to redundant apparatuses each of which is provided first and second unit and status addresses 01, 02 are respectively assinged to active state and stanby state. An address decision means decides an unit address of respective one of the first and second units in the redundant apparatus by combining an apparatus address of the redundant apparatus and the unit status address determined in accordance with whether the unit is active or standby. A source unit generates a destination address by combining the status address of the destination unit and the apparatus address of destination redundant apparatus to which the destination unit belongs and sends data to a system bus with said destination address attached thereto. A destination unit having an unit address which is the same as the destination address receives the data from the system bus and performing processing in accordance with said data.
REFERENCES:
patent: 5014261 (1991-05-01), Shinbashi et al.
patent: 5153874 (1992-10-01), Kobono
patent: 5329521 (1994-07-01), Walsh et al.
patent: 5329528 (1994-07-01), Akai et al.
patent: 5442631 (1995-08-01), Tanaka et al.
Fujitsu Limited
Kizou Hassan
Rao Seema S.
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