Method and apparatus for directing data packets in a local area network device having a plurality of ports interconnected by a high-speed communication bus
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United States of America Patent
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-
Jun 9, 1998
Issued Date -
N/A
app pub date -
Jan 23, 1996
filing date -
Jan 11, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A one-chip local area network (LAN) device comprises more than one local area network interface ports each including one receiver (11-14), one transmitter (15-18) and one triplet processor (25-28), a high-speed data bus (24) to which individual ones of the plurality of local area network interface ports are connected, and a switch engine (34) connected to the high-speed data bus (24) and including a packet buffer controller (40), a high-speed data bus controller (42) and content-addressable memory manager (44). Each triplet processor (25-28), provides for the reading of a destination address in packets received from a corresponding one of the local area network interface ports and simultaneously provides for the cut-through transmission of packets received from other ones of the local area network interface ports that transfer the packets over the high-speed data bus (24).
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