Patent ID: 8224180
Filing Date: 2012-07-17
Classification: H04J,H04Q

Abstract:
1. A method for protection switching in an optical network, comprising: establishing a baseline power level for a channel; establishing a threshold value for the channel approximately equal to a predetermined threshold value; receiving a signal associated with the channel via each of a first path of the optical network and a second path of the optical network; monitoring a power intensity of the signal received via the first path; based on the monitored power intensity, determining an average power intensity of the signal received via the first path; modifying at least one of the baseline power level and the threshold value in response to a determination that the average power intensity exceeds the baseline power level; and protection switching from the signal received via the first path to the signal received via the second path in response to a determination that the baseline power level exceeds the power intensity of the signal received via the first path by the threshold.