Multiplex communications – Wide area network – Packet switching
Patent
1992-08-14
1994-03-08
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 8513, 370 943, 370 97, H04J 326
Patent
active
052933750
ABSTRACT:
A repeater interface controller receives a data packet at one of a plurality of port nodes from an associated segment of a local area network. The port nodes determine a priority port node, if more than one port node receives a data packet at substantially the same time, and transmit the data packet from the priority port node to a central node. The central node receives the data packet, repeats the data packet from the priority node, and transmits the repeated data packet to the non-priority port nodes. Each non-priority port node receives the repeated data packet and transmits the repeated data onto its associated segment. Each port node further includes a partitioning port state machine which monitors its associated segment and partitions the segment from the repeater interface controller when the partitioning port state machine detects a collision in a predetermined number of consecutive data packets. The partitioning port state machine detects collisions in each packet from a beginning of the data packet until an end of the data packet.
REFERENCES:
patent: 4825435 (1989-04-01), Amundsen et al.
Cimino Daniel J.
Crosbie David
Holland Dennis E.
Moorwood Charles A.
Shah Haresh K.
Marcelo Melvin
National Semiconductor Corporation
Olms Douglas W.
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