Service reliability with enhanced failure recovery rate for multiple failures in survivable optical networks

In this paper, two basic parameters of service reliability, called service availability and service disruption rate against disjoint primary and backup paths failure in survivable optical networks are studied. The service availability and service disruption rate affected by dasiaenhanced failure recovery rate for multiple failurespsila is considered here. We consider enhanced failure recovery rate for multiple failures where a higher failure recovery rate is applied, if more than one path fail. Results of this paper can be divided into two parts. First, higher service availability can be achieved by dasiaenhanced failure recovery rate for multiple failurespsila. Secondly, reduction of the service disruption rate by increasing the dasiaenhanced failure recovery rate for multiple failurespsila is negligible. Therefore, this method is more applicable where connection availability is more important than that of the service disruption rate.