网络拓扑结构
计算机网络的拓扑结构表示的是网络中结点与通信线路之间的几何关系,反映了网络中各实体之间的结构关系。拓扑结构的设计是各种网络协议的实现基础,对网络的效率、可靠性和通信成本等都有很大影响。网络拓扑结构主要有星形、总线型和环形等。P71
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