Apparatus for selectively transferring data packets between local area networks
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United States of America Patent
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May 27, 1997
Issued Date -
N/A
app pub date -
Jul 29, 1996
filing date -
Mar 31, 1995
priority date (Note) -
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Abstract
A switching apparatus for selectively transferring data packets between a plurality of local area networks (LANs) at full-wire speed. A shared memory is used to store in buffers data packets received from one LAN prior to their transfer to another LAN under control of a block of control logic. The control logic maintains and updates sets of pointers which identify and control access to the buffers in shared memory. A single processor monitors these pointers and in response to a single source address table further updates these pointers to direct the control logic to discard or alternatively to transfer received data packets to other LANs.
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