Communication protocol for statistical data multiplexers arranged in a wide area network
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United States of America Patent
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-
Oct 6, 1992
Grant Date -
N/A
app pub date -
Dec 13, 1989
filing date -
Apr 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A network topography and associated protocol for exchanging data and control information between stations arranged in a daisy-chain wide-area-network (WAN) and a local-area-network (LAN). The protocol includes a circuit layer which routes messages between WAN stations, and a slot layer which routes slots between LAN channels and WAN devices. The protocol uses virtual circuits to route messages between devices. Broadcast messages distribute control information to all circuits. A circuit-specific control message allows passing control information to each circuit. Virtual circuits are established with a broadcast circuit-connect message and disconnected with a broadcast circuit-disconnect message. The maximum message size is regulated in accordance with the transmission speed of links over which a message must travel.
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