简要介绍了城域网的基本概念、网络结构、规划原则，并针对中国铁通城域网建设论述了解决方案。
The essential concepts, network structure and programming principle of metropolitan area network (MAN) are introduced briefly. And the solution for MAN construction of China Railcom is discussed.
简要介绍了城域网的基本概念、网络结构、规划原则，并针对中国铁通城域网建设论述了解决方案。
The essential concepts, network structure and programming principle of metropolitan area network (MAN) are introduced briefly. And the solution for MAN construction of China Railcom is discussed.
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