接着分析了复杂网络管理中的问题，提出了一个分层分布式网管模型，分析了其组成要素。
Based on the analysis of the problems in complex network management, it presents a layered distributed network management model and explains its components.
群首委任机制是分群工作的一部分，也是实现分层分布式网络管理思想的一个必不可少的环节。
The Cluster Head Delegation mechanism is the part of work of clusting, and it is an essential part of the implementation of the hierarchical and distributed network management system.
分析了网络管理协议和网络管理的一般模型，给出了集中式、分层式和分布式三种网络管理体系结构。
Network management protocol and the general model of network management have been analyzed. The centralized, hierarchical and distributed system structure of network management have been put forward.
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