本地传送网组网策略分析

Strategic analysis of local transport network

随着波分系统在本地网部署,可以采用波分+SDH混合组网的方式。对这种方式与传统SDH组网方式进行分析、研究,从资源利用率、安全性、经济性、扩展性方面进行分析比较。通过仿真分析,找出最合理、高效的组网方式。分析结果表明:采用OTN/WDM+SDH以星型结构组网比之环型组网,建设成本大大降低,而且资源利用率能得到一定提高,网络扩展性提升空间增大,安全性也可达到电信级标准。

With the deployment of WDM in local network,OTN/WDM ＋ SDH hybrid network can be used,analysis and comparison of which with traditional SDH network in resource utilization,security,economy and scalability is presented.Through simulation and analysis,most reasonable and efficient network structure is established.The results show that the optical transport network（OTN）/ wavelength division multiplexing（WDM）and synchronous digital hierarchy（SDH）network in a star structure is the most appropriate scheme.Compared with the ring structure,this network structure can save the cost of network construction,improve resource utilization of the network,enhance the network scalability.At the same time,the security of network can be achieved to carrier grade standards of network security.