Resilient Packet Ring (RPR) is an IEEE standardized next-generation metro optical transport technology based on ring network topology .
弹性分组环（RPR）是一个由IEEE标准化的基于环网拓扑的新一代城域光传送技术。
Finally, combined with Huawei Technology's optical network management solutions, the applications of metro optical network management are introduced.
最后结合华为光网络管理方案介绍了城域光网络运营管理的应用。
The architecture of metro optical network, networking principles and the selection of optical fiber cable are discussed in accordance with metro network positioning and function.
根据城域网的定位及作用，对城域光网络的结构、组网原则和光纤选用等问题进行了讨论。
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