以太网无源光网络光线路终端的设计与实现

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1、以太网无源光网络光线路终端的设计与实现DESIGNANDIMPLEMENTATIoNoFEPoNoPTICALLINETERMINALABSTRACTAlongwiththerapiddeVelopmentofcommunicati伽technology，uSerS陀quirementsofbandwidthbecomehigherandhi曲er．TheEthemetPassiVeOpticalNehvork(EPoN)based0nImnJreEthernettechnology吣espoint-t伊mult

2、ipointstl．ucture，·paLssiVeopticaltra璐IllissioIl’锄dppovidesawiderangeofbuSinessontheEthemet．1tcombinestheadVamagesofpassiVeopticalnetworktechnoIo纠andEthermttechnology，h觞f0¨owingchamcteristics：IoW-coSt，compat．bility，maturity，easytomaimain，operationalflexibility

3、andsoon．Itbecomesoneofthebestschemesofthenextgenerationbroadbandaocessnet、^，0rl(．Thethesisaimsatsatis矽ingcuStomer，f＆uSes0nimplementthebestperformanceandoperationofEPoNsystem，andstudies锄ddesignStheopticalLineTerminal(OLT)，includingoLTarchitecture，IllainseⅣicem

4、odeI，ElementManagementsyStem(EMS)andsoon．Italsoelabomtesme陀s既rchandimpmVementofupIinkb绷d、vidthallocati伽a190rithm．11heconten伍ofthcStudies0fmisthesisa1．easf．0110ws：FirStly，thisthesisstans舶lmthearcllitectureofEPC)N，analyzestheworl(ingprinciple锄dtec胁calfeaturesof

5、EPoNSyStem，detemi麟therequireme鹏锄dsystemlayout0fO仉Secondly'accordingtoCtIi腿Telec伽’stechnicalrequirements0fEPoNequipments，thismesisproposesasetofOLl’甜ch．tectu陀，∞rvicemodel，锄dtheimpIememati∞ofmainmodule．The撇inmoduleofoLTequipmentsinclud骼powersupplymodule，oBCmodu

6、le，IWFmodule，EPoNmoduleandsoon．SerVicemodelsmainIyincludeHSI∞rviceandlGMPSerVice．Thirdly，accordingtothe彻alysisofvario吣kinds0fnetworkma瑚【gementprotocol，softwarearchitectureanddeVelopmemtools，thisthesisimplementsaoLTdeViceElementMa舱gementsyStem(EMS)ofEP()_N，whi

7、chuSesBrow辩r／serverStmcture绷dMVCdesi印pa骶m．Thissystemisb嬲edonFlaSh，PHPandJaVa，卸dinclud岱configurationmodule，per内啪ancemoduIe，security珊Ddule锄dsoon．CIientsc锄acceSsnetvvorkelementsconVenientlyby憾ingbrowser．EVe叮r∞duleofthissystemisindependentandh鹬aStrongportability．

8、Fimlly，tllistheSisproposes觚improvedDBAalgorithmwhichisappIicabletoEPoNsystemofind吣仃y11et、ⅣorkSerViceb部ed0n扑aIyzingthe仃aditio豫lDBAalgorithm，tomakesu佗thatIIl以太网无源光网络光线路终端的设计与实现superViso叮锄da