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Survivability of network system is a very important issue in security field. Based on analyzing existing methods and defining the system attributes about survivability evaluation, the paper adopts stochastic Petri net (SPN) to analyze the survivability characteristics of the telecommunication switching system. The performance and fault-repair models are depicted by SPN and the quantitative evaluation approach of main survivability attributes are presented in the paper. At last, the simulation results show that the approach is correct and efficient.
Date of Conference: 18-20 June 2008