Reliable local data network arrangement

Details Reliable local data network arrangement Reliable local data network arrangement

1984-12-17

1987-09-08

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 16, 370 94, H04J 302

Patent

active

046929185

ABSTRACT:
The reliability of a distributed processing system is enhanced through the use of a highly reliable data communication system. Each node of such a system is connected to the other nodes by a local data network, including duplicated data network media, such as coaxial cables. Each node includes a maintenance processor for controlling which of the duplicate network media is active and which is standby. Regular inter-node data packets are transmitted over the active network medium. Control data packets to the maintenance processor are sent from a control node over the standby network medium. The maintenance processor can also totally stop transmission of data from the associated node to both data network media.

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T-S. Liu, "Maintenance Processors for Mainframe Computers," IEEE Spectrum, vol. 21, No. 2, Feb. 1984, pp. 36-42.
"The Ethernet: A Local Area Network", Digital, Intel and Xerox Corporatons, Version 1.0, Sep. 30, 1980.

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