Patent ID: 7158721
Filing Date: 2007-01-02
Classification: H04B,H04J

Abstract:
1. A method of monitoring performance of a communications network, comprising the steps of: coupling a first communication channel and a second communication channel together in a protection-switching configuration; simultaneously monitoring said first communication channel and said second communication channel in a common layer of said network so as to accumulate first performance data of said first communication channel in a first counter and to accumulate second performance data of said second communication channel in a second counter, while accumulating said first performance data in an active counter during a first time interval; detecting a protection switchover between said first communication channel and said second communication channel; and thereafter accumulating said second performance data in said active counter during a second time interval so that said active counter contains a sum of said first performance data accumulated during said first time interval with said second performance data accumulated during said second time interval.