An IP over WDM Protocol with Routing and Transport Capabilities 一种具有路由和传输能力的IP over WDM协议

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1、AnIPoverWDMProtocolwithRoutingandTransportCapabilitiesShou-KuoShaoandJingshownWuRoom519DepartmentofElectricalEngineeringandGraduateInstituteofCommunicationEngineeringNationalTaiwanUniversityTaipei,Taiwan107R.O.C.TEL:886-2-23635251ext.:519,FAX:886-2-23638247,Em

2、ail:yvonneko@cctwin.ee.ntu.edu.tw,skshao@ms.chttl.com.twAbstractAnewIPoverWDMprotocolwithroutingandtransportcapabilitiesisproposed.ThisprotocolutilizestheconceptoflabelswitchingandwavelengthinformationofWavelengthDivisionMultiplexing(WDM).Thisprotocoluseslabel

3、sandlengthinformationasthephysicaltransportframinganddatalinkdelineationatthesametimeandcanhandleroutingprocessesinthecorenetwork.Thus,itcanspeeduptheprocessesinfutureterabitnetworks.Thetransportadaptationandencapsulationschemeofthisprotocolissimpleandtranspar

4、enttoprotocoldataunit.Mostofall,thisprotocolnotonlyprovidestransmissionmechanism,butalsointegratestheMultiprotocolLabelSwitching(MPLS)trafficengineeringcontrolconceptastheIPtransportandswitchingcontrolplane.Inthispaper,wepresenttheadaptationandencapsulationsch

5、emeoftheproposedprotocolandanalyzeitsframinganddelineationperformance.1Introductiontocarrythelabelsmaysuffertheopticaltransparentprobleminallopticalnetworks.Forthissake,weWhileIPBackbonesystemsarebeingrealizedusingneedtoreconsider1)thepropertiesofopticaltrans-

6、SynchronousOpticalNetwork/SynchronousDigitalmission,2)thepropertiesofIPtraffic,and3)futureHierarchy(SONETEDH)andAsynchronousTransferrequirementsforIPbackbonetraffic.WhatweneedMode(ATM)technologies,existingtransportnet-areasfollows:1)anIPoverWDMtransportmecha-w

7、orkswillnotyieldthebandwidth-effectivetrans-nismthatcanhandlephysicalframing,datalinkde-portingandroutingschemesforIPtraffics.Thisislineationandpartoflayer3routingfunctionsatthebecausethatexitingtelecommunicationnetworksaresametime.Thismechanismalsoneedstospee

8、dupbeingdesignedfortraditionaltelecommunicationstheprocessing,whilekeepstransparenttoallopticalservicesinmind,andnotspecificallyforIPtraffic.networksaspossible.2)AsforIPtrafficprop