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概述众所周知,当前通信网业务的主体正在由传统的TDM业务传向IP业务,为了更好的承载IP数据业务,光传送技术方面一直在发展各种IP承载技术。而WDM在组网能力和波长业务调度方面均比较固定,灵活性还远不能真正高效地承载IP业务。所以业界非常关注如何进一步提升WDM这种基于波长颗粒的光传输系统的灵活性。从目前的发展来看,OTN(光传送网)和ROADM(可重构光分插复用器)技术均是较好的解决方案。
Overview As we all know, the main body of the current communication network business is moving from traditional TDM services to IP services, in order to better carry IP data services, optical transmission technology has been developing a variety of IP bearer technology. However, WDM is relatively fixed in terms of networking capabilities and wavelength service scheduling, and its flexibility is far from being able to truly carry IP services efficiently. So the industry is very concerned about how to further enhance the WDM wavelength based particle optical transmission system flexibility. From the current development point of view, OTN (Optical Transport Network) and ROADM (reconfigurable optical add / drop multiplexer) technology are better solutions.