Patent ID: 7155123
Filing Date: 2006-12-26
Classification: H04B

Abstract:
1. A methods comprising: monitoring historic and current optical layer performances of at least some of a plurality of network elements (NEs) forming a communications path within a communications network to extract thereby historic and current measures of performances; correlating a historic time trend for the historic measure of optical layer performance of each NE with a historic time trend of an end node performance measurement to identify thereby historic fault conditions associated with the monitored NEs; identifying a historic underperforming NE using a respective historic time trend correlation; correlating a current time trend for the current measure of optical layer performance of each NE with a current time trend of an end node performance measurement to identify thereby future fault conditions associated with the monitored NEs; and predicting a future underperforming NE by comparing the current time trend correlation with the historic time trend correlation.