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生存性是ＡＴＭ 网络中亟待解决的问题．文中针对当前研究中已提出的ＡＴＭ 网络生存性资源管理机制的不足，基于网络中各种服务不同的生存重要性，引入了故障恢复过程中的资源剥夺，并改进了预先的空闲容量规划，形成了新的生存性资源管理机制（记作ＣＭＧＣＳＳ）．该机制的实施使得网络即使在空闲容量不足的情况下，也能够提供关键服务恢复所需的容量，结合优先级恢复机制，实现了充分的关键服务生存性保证机制．分析和模拟的结果表明该机制为关键服务的恢复提供了保证，有效地提高了整个网络的生存能力．
Survivability is a problem to be solved in ATM network. In view of the shortcomings of ATM network survivability resource management mechanism proposed in the current research, based on the survival importance of different services in the network, this paper introduces the resource deprivation in the process of fault recovery and improves the pre-emption free capacity planning New survivor resource management mechanism (denoted as CMGCSS). The implementation of this mechanism enables the network to provide the necessary capacity for key service recovery even in the case of a lack of free capacity. In combination with the priority recovery mechanism, a sufficient key service survivability guarantee mechanism is achieved. The analysis and simulation results show that the mechanism provides a guarantee for the recovery of critical services and effectively improves the viability of the entire network.