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介绍了SDH传输网络逻辑复用段保护的原理及其应用的可行性评估、环网的配置、制作等,认为逻辑复用段保护是一种新的SDH保护技术,具有节省光纤、光口资源,充分利用网内时隙通道和组网灵活等特点,在不具备常规复用段保护条件的地区,通过建设逻辑复用段保护环来实现网内业务的复用段保护功能,具有十分重要的意义。
This paper introduces the principle of logical multiplex section protection in SDH transport network and the feasibility assessment of its application, the configuration and production of ring network, etc. It is considered that logical multiplex section protection is a new SDH protection technology with the advantages of saving fiber, , Take full advantage of the characteristics of the intra-network timeslot channel and flexible networking. It is very important to realize the protection function of the multiplexed segment of the intra-network service through the construction of the logical multiplex section protection ring in the areas that do not have the protection conditions of the conventional multiplex section Meaning.