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Industrial plants rely heavily on their automation, instrumentation and control data communications to relay signals between machinery, devices and control systems to activate events on an exacting and pre-determined schedule, with little or no margin for error. Plant managers and control network administrators also require optimal security, manageability and reliability so that network availability attains 99.999 percent uptime or better. Yet analysts report that a large percentage of unplanned downtime in industrial operations is caused by network infrastructure problems.