基于QoS的网络存活性动态重配置管理模型

A Dynamic Survivability Reconfiguration Management Model Based on QoS

传统的安全技术已经不足以保护无边界网络环境中高分布信息系统的存活性问题.针对网络存活性系统中由于外来攻击或自身故障等原因导致失效时,提供关键服务自恢复能力的不足,从容错QoS角度出发,提出了一个有效的网络存活性自适应重配置模型,讨论了存活性重配置策略,并给出存活性重配置的具体实现环节和相应的动态重配置算法.该模型可以实时监测系统当前状态,并能在系统遭受攻击或自身故障时,迅速确定动态调整算法,为系统有效实施存活性动态重配置策略提供了一种可行思路.

Traditional security approaches are not sufficient to deal with the protection and survivability of highly distributed information systems operating in unbounded networks. In view of the deficiencies of the key service self-recovering when the survivable system is not available, a efficient self-adjusting reconfiguration model on survivability is proposed from the point of fault-tolerant QoS. In this model, some survivability reconfiguration strategies are discussed, and the application steps of survivability reconfiguration and the corresponding dynamic reconfiguration algorithm are given. The model can probe the newest state of system, and decide the dynamic reconfiguration algorithm when suffering attacks or failures, providing an application idea for dynamic reconfiguration on survivability.