DISTRIBUTED ROUTING ACCORDING TO LONGEST MATCH PRINCIPLE
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Aug 4, 2011
filing date -
Sep 1, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A network relay system includes a plurality of internal network relay devices. The network relay system learns multiple pieces of route information to an external network, creates a plurality of allocation route tables designed to allocate the learnt multiple pieces of route information to the internal network relay devices. The network relay system then generates address space information showing a correlation of IP address ranges on an IP address space between the allocation route tables and respectively registers the allocation route tables, along with the generated address space information, in the internal network relay devices. Each of the internal network relay devices transfers a data frame, based on the address space information and the allocation route table registered in the self-device.
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