... 网络规划模拟工具: Network Planning Simulation Tool 骨干层: Backbone layer 汇聚层: Convergence layer ...
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So the backbone layer, access layer and convergence layer are completely separated. the issue of efficiency of line slot utilization is resolved and data services is added.
彻底将骨干层、汇聚层、接入层分离。 解决线路时隙利用率的问题,并加入了大量的数据业务。
参考来源 - 中国联通太原分公司SDH传输网络优化设计·2,447,543篇论文数据，部分数据来源于NoteExpress
MAN must possess large capacity, high-bandwidth, multi-service and high reliability to achieve broadband IP service suppont capabilites on backbone layer.
城域网必须具备大容量、高带宽、多业务、高可靠性等能力，从而实现骨干层层面的宽带IP化业务支持能力。
Combined with layer planning model, it also discusses the planning of backbone layer, distribution layer and leading-in layer of optical fiber access network in city.
结合光纤接入网分层规划模型模型，对城市光纤接入网的主干层、分配层和引入层的规划设计进行了探讨。
So the backbone layer, access layer and convergence layer are completely separated. the issue of efficiency of line slot utilization is resolved and data services is added.
彻底将骨干层、汇聚层、接入层分离。解决线路时隙利用率的问题，并加入了大量的数据业务。
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