Dual receive, dual transmit fault tolerant network arrangement

Details Dual receive, dual transmit fault tolerant network arrangement Dual receive, dual transmit fault tolerant network arrangement

1995-02-02

1996-08-06

Kizou, Hassan

Multiplex communications

Wide area network

Packet switching

370 8512, 370 8515, 370 941, H04L 12437

Patent

active

055441513

ABSTRACT:
A fault permission network arrangement having a plurality of packet transfer units connected in a ring form. Each of the plurality of packet transfer units comprises first and second nodes, each of the first and second nodes having two inputs and two outputs, for inputting the same data from previous-stage two nodes, abandoning one of the input data and transferring the other data to subsequent-stage two nodes, and an interface unit having two inputs and two outputs connected to the first and second nodes through serial links, respectively, for transferring a packet from a communication system to the first and second nodes, the interface unit selecting one of the same two data from the first and second nodes and transferring the selected data to the communication system. According to the present invention, the selected packet can be transferred to a destination although faults occur at a plurality of nodes, respectively.

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patent: 5341364 (1994-08-01), Marra et al.
Hector Garcia-Molina et al., "Agressive Transmissions over Redundant Paths", IEEE, 1991, pp. 198-207.
Jon T. Currie, "Finding Your Way Around Rings", Rockwell Workshop, pp. 1-16.
J. Baudron et al., "Availability and Survivability of SDH Networks", Electrical Communication--4th Quarter 1993, pp. 339-348.

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