在广域网和城域网的网络传输中，高端路由器扮演着及其重要的角色。
In the network transmission of local area network and wide area network, high-end routers play an important role.
介绍了千兆教育城域网的方案设计、拓扑结构和设备选型，并给出中心节点和主节点网络互连的路由详细配置。
The paper gives design, network topology and network equipment selection of science and technology MAN, and gives detailed configuration of Internet route of center node and main node.
本文主要是对城域网中一种新型的数据传输技术—弹性分组环（RPR），进行了详细地探讨和深入地研究。
In this paper, one new data transport technology named Resilient Packet Ring (RPR) in metropolitan area networks is discussed and anayzed in a great extend.
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