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ID:36461803
大小:2.20 MB
页数:75页
时间:2019-05-10
《SDH技术在IP城域网中的应用研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西南交通大学硕士学位论文SDH技术在IP城域网中的应用研究姓名:陈昳申请学位级别:硕士专业:电子与信息工程指导教师:余立建20070301西南交通大学硕士研究生学位论文篁!!亟AbstractRecentlyamongthedevelopmentofChinatelecommura'cationindustry,databusinesspresentarapidest缸t:nd.Theincreaseofcustomeramountandvarietyofuserdemand.speciallytheuseofnewbusinessincludingoflzrv、VOW、3Getc.dono
2、tonlybringsuppliershugebusinessopportunities,butalsoputforwardanewchallengetothesuppliers’networkinfrastructorcandexistingnetworkconstructionidea,CurrentlythekeyproblemwhattheIPnetworkfacesiswhetLhertheexistingnetworkcanbearthehigh-spccdgrowthofcxlstonlel"amountandtheimpactwhichthenewbusinessbrough
3、ttothenetworkhigherrequest.MSTP(multi·protocollabelswitching)basedontheSDHisthemostmaturetechniqueamongtheMAN.SothispaperemphasizedonthestudytheoptimizedprojectofMSTP_basedIPWAN,whichisveryimportanttomaintaintheimagethatsuppliersbuildupforlongthneandlloldthecustomerandincreasethebusiness.Firstlynet
4、workstructureandfunctionrequestofdeliveringIPbusinessontheSDHwagprovide.Anditintroducedtwokindsofencapsulationtechniqueincluding6FPandLAPSOnSDHandtheVirtualConcatenation(VC)technologywhichmakasnsooftransmissionbandwidthefficientlyandLCAS.Basedonthistheorefics,thispaperemphasizeAstudythetransmission
5、designofEthernet.Thentheauthoranalyzedtestingtargetandthesystemperformance,atlastsummarizedthepaperandprospectedthedevelopmentforegroundofSDHandIPtechniquetogetherin伟爿ⅣThetopicmadenseofIPWANoptimizeddesigninChongqingandanalyzedtheactualnetworkcombinedpipelineresolff嘲ofthenetandtransmissionr镪ources'
6、customerresources.etcinWAN,andstudiedthetransmissionsysteminEthernetbasedonSDH,intheendvalidatedthetestingtooptimizedWAN.Consequentlythistopicispracticabilityandadvanced.Keywords:SDH;IP;MAN;MSTP;西南交通大学硕士研究生学位论文第l页1.1概述第1章绪论经过前几年大规模DWDM和lOGbit/sSDH建设,各大运营商已经较好地解决了长途干线系统容量要求。整个光网络建设重点己由大容量、高速率的长途干线转到
7、了城域传送网。城域网中,语音和专线TDM业务仍然是运营商的主要收入来源,而以IP为代表的数据业务增长迅速,与传统的TDM业务相比,IP业务的流量、流向更为复杂,对带宽、安全性的要求也多种多样。NGN网络的发展是下一个热点,VOIP的业务会进一步发展,MSTP通过提供对数据业务的QoS支持,也可能会成为MSTP的一个方向。一个好的城域传输网络应该是一个通用的传输平台,能高效可靠地传输各种业务。这就需要城域传输网
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