TRANSMIT-SECURE NON-BLOCKING CIRCUIT-SWITCHED LOCAL AREA NETWORK

摘要

A TRANSMIT-SECURE NON-BLOCKING
CIRCUIT-SWITCHED LOCAL AREA NETWORK
ABSTRACT
A switching system or local area network is non-
blocking, transmit-secure and employs a star type
topology. A back plane uses n(n-1) bus lines to
interconnect n ports. Each port can transmit on any
one of n-1 bus lines depending on the identity of
the destination port. Likewise, each port can
receive from any of n-1 bus lines, depending on the
identity of the transmitting port. Signalling
as well as data flow on the same bus lines. Each of
the ports includes a dedicated microprocessor along
with an arbitrator to resolve contention. The
ports further have transmit and receive multiplexers
coupled between the back plane and an associated
work station or information source/sink.