【摘要】 随着数据通信业务的迅猛发展,现代社会对网络的安全性要求越来越高,SDH自愈保护是提高光网络安全性的重要手段之一。通过对SDH自愈环的结构特性及环网保护机制的介绍,分析比较了4种常用SDH自愈环的优缺点,为网络安全建设提供依据。结合山西某地区网通SDH光传输网络特点介绍应用实例,最后对SDH传输网的保护技术进行展望。更多还原

【Abstract】 With the rapid development of data service and network,the security of network is more and more important.SDH self-healing protection is useful for transmission network survivability.This paper presents the characteristics of SDH SHR and the protection of ring network,compares four major SHR structures,provides service to network constructure.Following,the application of SHR is analysed conretely in accordence with the characters of CNC local transmission network in Shanxi province.Finally,it discusses the future development of protection in SDH transmission network.更多还原