Multiplex communications – Wide area network – Packet switching
Patent
1989-06-22
1992-02-11
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 60, 370 8513, 370 941, 34082502, H04J 324, H04Q 1104
Patent
active
050880918
ABSTRACT:
A mesh connected local area network provides automatic packet switching and routing between host computers coupled to the network. The network has a multiplicity of cut-through, nonblocking switches, each capable of simultaneously routing a multiplicity of data packets. Low host-to-host latency is achieved through the use of cut-through switches with separate internal buffers for each packet being routed. The switches are interconnected with one another and are coupled to the host computers of the network by point to point full duplex links. While each switch can be coupled to ten or more network members, i.e., switches and hosts, each link is coupled to only two network members and is dedicated to carrying signals therebetween. Whenever a new switch or link is added to the network, and whenever a switch or link fails, the switches in the network automatically reconfigure the network by recomputing the set of legal paths through the network.
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"Distributed Star Network with Unrooted Tree Topology", F. Closs and R. P. Lee, IBM Technical Disclosure Bulletin, vol. 22, No. 12, May 1980.
Birrell Andrew D.
Murray, Jr. Hallam G.
Needham Roger M.
Rodeheffer Thomas L.
Satterthwaite, Jr. Edwin H.
Digital Equipment Corporation
Hsu Alpus H.
Olms Douglas W.
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