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网络容错及可靠性是网络工程规划和设计中的极为重要的内容。本文介绍了网络拓扑结构及网络布线与网络可靠性的关系，提出了通过增加冗余器件来提高服务器容错能力的方法，说明了路由器的容错及可靠性设计的措施。
Network fault tolerance and reliability are extremely important elements in network engineering planning and design. This paper introduces the relationship between network topology and network cabling and network reliability, proposes a method to improve server fault tolerance by adding redundant devices, and describes the measures of fault tolerance and reliability design of routers.