Packet processing using a multi-port memory
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United States of America Patent
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Jun 28, 2011
Grant Date -
Jun 25, 2009
app pub date -
Feb 27, 2009
filing date -
Sep 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A packet processing method for exchanging packet data through a plurality of layers is disclosed, that comprises the steps of storing the entire packet to a packet memory; and storing part of each packet of the packet data used in processes of a layer 2 processing portion and a layer 3 processing portion of the plurality of layers to a multi-port shared memory, the layer 2 processing portion and the layer 3 processing portion accessing the same memory space of the multi-port shared memory. In addition, a pipeline processing system is used so that when the layer 2 processing portion and the layer 3 processing portion access the shared memory, they do not interfere with each other.
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