Multiplex communications – Wide area network – Packet switching
Patent
1991-05-13
1992-01-14
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 8512, H04J 314
Patent
active
050816217
ABSTRACT:
An identification code for identifying a data frame is added to the data frame transmitted from a station. When a bridge which interconnects transmission paths is to relay the data frame, it compares the identification code with the identification code stored in a memory under a condition of activation of a timer and relays only the data frame having a different identification code. The timer is activated by a first-coming data frame and deactivated after a predetermined time interval.
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Hitachi , Ltd.
Jung Min
Olms Douglas W.
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