【摘要】 网络弹性(Network Resilience)必将作为下一代异构网络必要的设计与操作属性,被定义为在面临不同的失效或挑战时,能够提供和保持可接受服务水平的能力。从系统的角度对网络弹性进行了深入的研究,首先对网络弹性从定义、模型、实现与评估等方面进行深入的分析,接着讨论基于态势感知的网络弹性研究模型,并详细阐述了模型的每一层功能及实现方法,最后给出了网络弹性研究的发展方向。更多还原

【Abstract】 Resilience in the network,which is defined as the ability of the networks to provide and maintain an acceptable level of service in the face of various faults and challenges to normal operation,must be viewed as an essential design and operational characteristic of future networks in general,and the Global Internet in particular.This paper is about network resilience in heterogeneous environment based on situational awareness in the holistic view.The works are organized as follows:first,definition,model,realization and assessment of network resilience are analyzed in depth;then,network resilience model based on situational awareness is discussed,and function and realization methods of each level are depicted in detail;at last we talk about the next step research of network resilience.更多还原