Server network controller including packet forwarding and method therefor
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United States of America Patent
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-
Jan 1, 2008
Grant Date -
Dec 11, 2003
app pub date -
Jun 6, 2002
filing date -
Jun 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A network controller including a packet forwarding mechanism and method therefor improve load-balancing within a network system without requiring an intelligent switch having TCP splicing capability. If the network controller node is becoming overloaded (for example as indicated by a full output FIFO), the network controller forwards connections directly to alternate servers. The network controller and method further provide improved fail-safe operation, as the network controller can more easily detect failure of the coupled server than can a remote switch being monitored for failure of a connected server node. The packet forwarding mechanism can be implemented very compactly within the firmware of the network controller, providing a load-balancing solution with little incremental cost (as opposed to an intelligent switch solution) and with tight coupling to the server, providing a redirection solution from the point that has the most information available regarding the status of the associated server node.
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