Multiplex communications – Wide area network – Packet switching
Patent
1993-08-09
1996-05-21
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370 941, H04L 1256
Patent
active
055196985
ABSTRACT:
A switching network having a sorting network followed by a plurality of routing networks for routing packets from a plurality of inputs to a plurality of outputs in accordance with destination addresses specified by the packets includes a reservation ring mechanism for resolving conflicts among inputs contending for access to identical outputs. This reservation ring mechanism performs a sequence of step and compare operations in top-to-bottom ring-like order during one or more arbitration cycles for granting contending inputs access to the outputs for which those inputs are contending in top-to-bottom order. Each of the routing networks can route packets from any input to any output, so up to k packets are routed to each output during each arbitration cycle, where k equals the number of routing networks that are employed.
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Cisneros, "Large Packet Switch and Contenton Resolution Device" Proceeding of the XIII International Switching Symposium 1990, paper 14, vol. III, pp. 77-83.
Bell Alan G.
Lyles Joseph B.
Chin Wellington
Nguyen Chau T.
Xerox Corporation
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