摘要编号淮安信息职业技术学院毕业论文题目SDH自愈机制及其应用学生姓名曹家运学号37011342院系计算机与通信工程学院专业通信技术班级370113指导教师龚佑红讲师、工程师顾问教师杜文龙二〇一三年十月摘要PAGEII摘要现代社会离不开通信，而通信网络的安全性，即网络的生存性也越来越显示出其重要的地位。自愈网的概念由此而产生，就是说网络在出现意外故障时能够在极短时间内且无需人为干涉自动恢复所携带业务，即网络具备发现替代传输路由并重新确立通信的能力。SDH环形网保护就是实现自愈网的方法之一。SDH自愈环保护是使现代大容量光纤网络具有很高生存性的手段之一。自愈环分通道保护环和复用段共享保护环。本文描述了自愈环的分类，自愈环的结构及保护机理，同时对各种自愈环结构的特点、应用环境等作出了分析和比较，以供工程中参考。关键词：SDH自愈环复用段共享保护AbstractAbstractAbstractAbstractWithoutcommunicationinmodernsociety,andthesecurityofthecommunicationnetwork,thenetworksurvivabilityisbecomingmoreandmoreshowsitsimportantposition.Self-healingnetworkconcept,thismeansthatthenetworkincaseofaccidentalfailurecanbeinaveryshortperiodoftimewithouthumaninterventioncarriedbyautomaticrecovery,networkhavefoundalternativetransmissionrouteandre-establishtheabilityofcommunication.SDHringnetwork.SDHself-healingringprotectionistomakethemodernoneofthemeansofhigh-capacityopticalnetworksurvivabilityhasaveryhigh.Self-healingringchannelprotectionringandmultiplexingsegmentSharedprotectionring.Thisarticledescribestheclassificationofself-healingring,self-healingringstructureandprotectionmechanism,atthesametimetoallsortsofself-healingringstructurecharacteristics,applicationenvironment,etc,theanalysisandcomparisonofreferencefortheengineering.Keywords：SDH;Self-healingring;MultiplexingsegmentSharedprotection目录目录目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc370544427"摘要PAGEREF_Toc370544427\hIHYPERLINK\l"_Toc370544428"AbstractPAGEREF_Toc370544428\hIIHYPERLINK\l"_Toc370544429"第一章绪论PAGEREF_Toc370544429\h1HYPERLINK\l"_Toc370544430"1.1SDH的概述PAGEREF_Toc370544430\h1HYPERLINK\l"_Toc370544431"1.2SDH产生的背景PAGEREF_Toc370544431\h1HYPERLINK\l"_Toc370544432"1.3SDH的特点PAGEREF_Toc370544432\h1HYPERLINK\l"_Toc370544433"1.3.1SDH技术的优点PAGEREF_Toc370544433\h1HYPERLINK\l"_Toc370544434"1.3.2SDH技术的不足PAGEREF_Toc370544434\h2HYPERLINK\l"_Toc370544435"第二章SDH的保护方式及结构PAGEREF_Toc370544435\h5HYPERLINK\l"_Toc370