40Gbit/s DWDM系统光路调度试验及OLP试验总结

40Gbit/s DWDM Optical System Dispatch and OLP Experiment

随着40Gbit/s路由器的正式商用,中国电信从2009年中开始大规模建设单波速率40Gbit/s的高速率波分系统。40Gbit/s系统较10Gbit/s系统,有着更严格的色散要求,40Gbit/s系统除了要求固定色散补偿模块配置准确外,还在OTU上配置了色散可调模块TDC(Tunable Dispersion Compensator),进行色散精确调整。由于TDC在全局搜索时,会引起业务的较长时间中断,因此40Gbit/s系统的业务恢复与10Gbit/s系统有较大的区别。本文就40Gbit/s波分系统的调度及OLP保护对业务的影响进行了探讨。

40Gbit/s router with the official business, China Telecom started from 2009 in large-scale construction of high-speed single-wave velocity 40Gbit/s rate wave subsystems. 10/40Gbit/s system than the system, the dispersion has a more stringent requirement, 40Gbit/s system requirements in addition to the fixed dispersion compensation module is configured for accuracy, is also configured on the dispersion OTU adjustable module TDC , for precise adjustment of dispersion. As the TDC in the global search, it will cause the business a long time interrupted, so 40G and 10G systems business recovery system differs greatly. In this paper, the scheduling and 40G WDM OLP business impact protection are discussed.