实验床中的各移动节点都运行按需单播路由协议与多播路由协议，并可通过基站系统与有线骨干网连接。

Each node runs both the unicast routing protocol and the multicast routing protocols on a dynamic on demand basis, and interfaces seamlessly with the existing Internet infrastructure.

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最后，简要介绍了OSPF的几种扩展机制，且对目前单播路由选择协议进行了比较和总结。

Finally, it discusses the extended mechanism of OSPF and compare the several routing protocol in single broadcasting mode.

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最后，简要介绍了OSPF的几种扩展机制，且对目前单播路由选择协议进行了比较和总结。

Finally, it discusses the extended mechanism of OSPF and compare the several routing protocol in single broadcasting mode.

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