Control information communication arrangement for a distributed

Multiplex communications – Wide area network – Packet switching

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370 681, H04Q 1102

Patent

active

048212598

ABSTRACT:
A switching system including a number of switching modules each having a plurality of access ports. Incoming and outgoing packet channels are extended between each switching module and an inter-module packet switch. Each of the switching modules includes both a packet switching unit and a circuit switching unit for switching information to and from the access ports. Each switching module further includes a control unit that controls the switching units and that generates inter-module control packets, and a communication interface that transmits inter-module control packets generated by the control unit on the incoming packet channel to the inter-module packet switch. The communication interface also transmits inter-module control packets received on the outgoing packet channel from the inter-module packet switch to the control unit. The inter-module packet switch concurrently packet switches inter-module control packets received on a number of the incoming packet channels, via mutltiple independent paths to a number of the outgoing packet channels.

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Chalet, A., Drignath, R., "System 12 Data Module Architecture Including Packet Operation", Electrical Communication, vol. 59, No. 1/2--1985, pp. 112-119.

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