Integrated self-checking packet switch node

Details Integrated self-checking packet switch node Integrated self-checking packet switch node

1983-05-18

1985-12-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 13, 370 94, H04Q 1104, H04J 300, H04J 600

Patent

active

045610908

ABSTRACT:
A detection circuit for monitoring the operations of a packet switch node to detect the loss or erroneous creation of packets within the switch node. The switch nodes are interconnected to form a packet switching network, and switching networks are interconnected by trunk controllers to form a packet switching system. A communication path is set up through such a switching system by initially routing a call setup packet from an originating terminal to each central processor controlling a switching network in the route to a destination terminal. Each central processor is responsive to a receipt of the setup packet to store logical to physical address translation information in memories of its associated trunk controllers. The physical address defines a path through the switching network to an output trunk controller in the communication path to the destination terminal. In response to the receipt of each subsequent message packet, each trunk controller utilizes its memory information for translation and the assemblage of a new packet containing the physical address plus the message packet. The controller then sends the new packet to the switching network. The switch nodes within the switching network are responsive to the physical address in the new packet for establishing the physical path to the output trunk controller. The detection circuit within a packet switch node determines the difference between the number of packets received by the node and the number of packets transmitted by the node and indicates an error condition within the node if the difference falls outside an allowable range.

REFERENCES:
patent: 4081612 (1978-03-01), Hafner
patent: 4225919 (1980-09-01), Kyu et al.
patent: 4271506 (1981-06-01), Broc et al.
patent: 4314367 (1982-02-01), Bakka et al.
patent: 4320500 (1982-03-01), Barberis et al.
patent: 4354263 (1982-10-01), Bordry et al.
patent: 4398290 (1983-08-01), Mathieu et al.
Aug. 1979, Bolt Beranek and Newman, Inc., Report No. 4098, "Development of a Voice Funnel System".

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