在融合和优化中演进的统一承载网

[摘要] 文章主要讨论了承载网融合过程中网络和设备的架构与功能以及智能软件在流量优化中的关键技术。文章认为网络、设备的融合和多层多域网络的联合优化调度，可以减轻IP网络流量压力，提高承载网运营效率并降低运营商的资本投资和运维成本，是电信网络发展的长期趋势。

[关键词] IP；光网络；路径计算单元(PCE)；P-OTN

[Abstract] In this paper, we discuss the network architecture and equipment functions in a converged bearer network. We also discuss the key technology for optimizing the flow of intelligent software. We suggest that network convergence, equipment convergence, and the joint optimal scheduling of the multilayer, multidomain network can reduce the pressure on IP network traffic. It can also improve operational efficiency of the bearer network and reduce capital expenditure (capex) and operation administration and maintenance (OAM) costs. This is a long-term trend in the development of telecommunication networks.

[Keywords] IP；optical network；path computation element (PCE)；P-OTN