Packet relay control method packet relay device and program memory medium

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United States of America Patent

PATENT NO 6175874
SERIAL NO

09020853

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Abstract

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A control method and apparatus for distributing packets to nodes in a cluster, while realizing a single system image at the network address level and such as to be able to simply and dynamically change the distribution destination, conditions of distribution, and the like. A pattern matching unit in a relay device receives packets coming from a packet receiving device. The packets have an address which represents a cluster. Using a distribution control table, pattern matching is performed based on the transmission origin address, transmission origin port, destination port and the like of this packet. A hash calculation unit, from the matching result, performs a hash calculation obtaining the argument of a hash function. A destination node extraction unit sets the destination node of the packet based on the hash result, using the distribution control table.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU LIMITEDKAWASAKI-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imai, Yuji Kawasaki, JP 124 2733
Katsuyama, Tsuneo Machida, JP 9 677
Kishimoto, Mitsuhiro Shinjuku, JP 3 129

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