Sdh Network Protection Analysis And Research

The SDH(Synchronous Digital Hierarchy)Network Protection is that the optical transport network has the intelligent network elements and the capacity of network element cross, when the network fails, it can use of the alternate equipment or the redundancy of the existing equipment, without human intervention, so that the service can automatically return to normal, all the users hardly feel that the network broke down. Continuously improving the network performance of the optical transport network and service quality has become an important tasks for the transport network maintenance. The one of the current hot topics is how optimize the optical transport network.This article describes the basic principle of The SDH, find out the reasons that affect the quality of network operation by analyzing the traditional SDH network of CangZhou. Analyze and adjust the problems that encountered in the process of the SDH network optimization, generalize and summarize the experience of the SDH network optimization, given the flow of the SDH network optimization. Finally further elaborate examples so that we have a clear and intuitive appreciate for the SDH network optimization.1,Describes the development of the SDH, pointed out the importance of the SDH network optimization and the significance of the project;2,Introduced the basic network structure of the SDH, analyze the different combination of the basic network structure how affect communication quality of the transmission network.3, Investigate the design of traditional local network of Changzhou, With the rapid development of data services, the problems of traditional local network were discovered constantly.4, According to the example of the SDH network optimization of Cangzhou, proposed the flow of the SDH network optimization from three aspects that are the Access Network, the MAN and the Core Network.