阐述了其基本网络拓扑结构、动态路由协议的选取和配置等问题，并同已有的方法进行了详细对比。

This paper studies its overall structure of network topology, the selection of dynamic routing protocols as well as configuration, and compares this method with the existing methods in detail.

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常用的方法是运行动态路由协议或静态配置缺省路由。

The usual means include running dynamic routing protocol or configuring static default route.

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