Main device redundancy configuration and main device replacing method
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United States of America Patent
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Jun 25, 2013
Grant Date -
Nov 20, 2008
app pub date -
Apr 28, 2008
filing date -
May 18, 2007
priority date (Note) -
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Abstract
A networking system architecture includes a plurality of main devices, one of the main devices acts as a master main device, and the other main devices act as slave main devices. If the master main device malfunctions, one of the slave main devices substitutes for the master main device to act as a new master main device. Priorities are set to the main devices, respectively. If a current master main device malfunctions, the current master main device may be replaced by a new master main device having the highest priority among the other main devices.
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