Programmable network
AssigneeHitachi, Ltd.
InventorsSatoshi Yoshizawa, Toshiaki Suzuki, Mitsuru Ikezawa, Itaru Mimura, Tatsuya Kameyama
Life of this patent
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Abstract
At each network node, a packet classification unit makes a judgement to transfer only a packet necessary to be processed by software to a packet processing program processor and transfer other packets directly to a routing processor. Processing history information indicating the process history executed at each network node on a network route is transferred to the other network nodes so that other network nodes can store the processing history information in respective processing history repository table. Each node refers to this table and further transfers only the packet necessary to be processed by software to the packet processing processor.
Claims3
A communication method at a network node, comprising the steps of:
- judging whether input packets belong to a flow where a packet processing program is to be performed;
- performing the packet processing program to the input packets belonging to the flow;
- and
- transferring input packets not belonging to the flow to a routing processor without performing the packet processing program.
Dependencies are inferred from the claim text.