Fabric access integrated circuit configured to bound cell reorder depth
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United States of America Patent
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Dec 15, 2009
Grant Date -
Oct 28, 2004
app pub date -
Apr 23, 2004
filing date -
Apr 25, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Bounding cell reorder depth is disclosed. It is determined whether a reorder buffer that is associated with a switch fabric exceeds a depth limit. In the event that the reorder buffer exceeds the depth limit, backpressure with respect to a source associated with the reorder buffer is sent. In such cases source based back pressure information is included in a reserved field in a cell that is being sent into the switch fabric. In the event that the reorder buffer does not exceed the depth limit, the cell is sent to the switch fabric. In such cases the reserved field is present in the cell but is unused.
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