首先给出了通信网网络管理系统可靠性的定义和指标,然后主要从通信网网络管理系统的结构模式、硬件可靠性设计和软件可靠性设计三个角度出发,详细阐述了提高通信网网络管理系统可靠性的措施,最后从安全性特征、安全层次、安全威胁和安全防范措施四个方面论述了通信网网络管理系统的安全性问题。 First of all, it gives the definition and index of the reliability of the network management system of communication network. Then it mainly elaborates the ways to improve the network management of communication network from three aspects of the structure model, hardware reliability design and software reliability design of communication network management system. System reliability measures, and finally discusses the security issues of the communication network management system from the four aspects of security features, security level, security threats and security precautions.