基于着色Petri网的系统可生存性仿真平台

摘要

对可生存系统组件在攻击、抵抗、恢复3种因素作用下的状态转换过程进行分析,设计基于着色Petri网的系统可生存性仿真平台,从攻击强度、攻击密度、恢复强度、攻击策略、恢复策略5个方面模拟可生存系统的行为特性.以一个IPTV网络服务系统为例,利用平台仿真其在遭受不同攻击时的服务提供能力.仿真结果表明,该平台能较好地实现系统可生存性分析.%By analyzing the state transition process of components of survivable system under action of attack, resistance and recovery, this paper designs the simulation platform for system survivability based on Coloured Petri Net(CPN), which simulates the behavior of survivable system from aspects of attack intensity, attack density, recovery intensity, attack strategy and recovery strategy. The structure and operating mechanism of the platform is illustrated in detail, and by using an IPTV network service system as an example, it simulates its service delivery capacity under different attacks with the platform. Simulation results show it can realize the survivability analysis well.