Patent ID: 8479043
Filing Date: 2013-07-02
Classification: G06F

Abstract:
1. A method, comprising: receiving, by a powered device that is coupled to a power sourcing equipment via a network cable, power from a primary power source that enables said powered device to function at a first level of functionality in an active state during a first time period, said primary power source being coupled to said powered device via a second cable; detecting, by said powered device, a failure to receive power from said primary power source via said second cable; upon detection of said failure, transitioning said powered device into a fallback power state, wherein said powered device has a second level of functionality in said fallback power state that is lower than said first level of functionality in said active state, said second level of functionality in said fallback power state being supported by a temporary internal power source within said powered device; and after detection of said failure to receive power from said primary power source via said second cable and prior to receiving power from power sourcing equipment via said network cable, transmitting a configuration message from said powered device to said power sourcing equipment via said network cable during said fallback power state, said transmitted message enabling an activation of a delivery of power from said power sourcing equipment to said powered device via said network cable during a second time period following said first time period.