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文章分析了城域网发展状况 ,阐述了 1 0 Gb E、RPR、MPLS和 CWDM等城域技术及其在网中的组合应用 .
The paper analyzes the development of metro network, and expounds the metro application such as 1 0 Gb E, RPR, MPLS and CWDM and their combined application in the network.