Voting to establish a new network master device after a network failover
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United States of America Patent
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Mar 1, 2011
Grant Date -
Jun 12, 2008
app pub date -
Dec 6, 2006
filing date -
Dec 6, 2006
priority date (Note) -
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Abstract
Embodiments of the invention can resolve conflicts between candidate master network devices such as may be encountered in a failover condition. In a common type of failover protocol, two or more candidate master devices send messages to each other prior to a failover condition. A witness device (or process or service) also casts a vote to prevent a stalemate condition between the two candidate master devices that could lead to an error condition where multiple masters, or no masters, are elected.
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