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目前WDM光网络普通用户大量的一般业务请求数目及波长通道带宽的不断增加极大的增加了网络中电层和光层设备的处理负担,增加了网络成本。对低速电信号复用到高速光通道进行优化,减少网络电层设备的使用,降低网络成本的业务疏导(TrafficGrooming)技术成为目前光网络研究的一个热点。本文主要介绍了WDM光网络中的业务疏导问题的基本概念、技术特点、国内外研究现状进行了总结。
Currently, a large number of ordinary service requests from ordinary users of WDM optical networks and the continuous increase of wavelength channel bandwidth greatly increase the processing load on the electrical and optical layer devices in the network and increase the network cost. Traffic grooming (TrafficGrooming) technology that optimizes low-speed electrical signals and multiplexes them into high-speed optical channels to reduce the use of network electrical equipment and reduce network costs has become a hot spot in optical network research. This paper mainly introduces the basic concepts, technical features and current research status of the service grooming in WDM optical networks.