Patent ID: 8451739
Filing Date: 2013-05-28
Classification: H04L,Y04S

Abstract:
1. A central controller that detects device failures in a network, said network including a plurality of nodes coupled to the central controller, wherein a first of said nodes communicates with the central controller via a second of said nodes, said central controller having a processor that executes program instructions stored in a memory device that cause the central controller to: record a failure alert received from the second node in a log stored on the memory device, said second node providing said failure alert based on a determination that the first node has not transmitted a predetermined number of messages over a predefined number of time periods; determine, by the processor, that the first node has failed based on a set of failure alerts recorded in the log, said set including failure alerts received from a plurality of nodes; and generate, when the processor determines that the first node has failed, a failure notification causing a notification device to indicate a failure.