Cross-platform server clustering using a network flow switch
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
Dec 19, 1997
filing date -
Dec 19, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A network flow switch is provided for connecting a pool of IP routers to a cluster of IP servers sharing a single IP address without requiring translation of the IP address. Rather, all IP servers have the same IP address. The network flow switch routes packets to individual servers by writing the Data Link Layer address of the destination IP server in the destination Data Link Layer address field of the packet. However, no Data Link Layer address translation is required for packets transmitted from the IP servers to the IP routers. Since in a typical client-server environment, the number of packets sent from the server to the client is much greater than the number of packets sent from the client to the server, the Data Link Layer address translation requires very little overall processing time.
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