EPON主要功能说明

ConfidentialMainfunctionsofFSU6200systemSumitomoElectricNetworks,Inc.2ConfidentialContentsSecurityfunctionsSLA/QoSfunctionsVLANfunctionsOAMfunctions3ConfidentialONUcertificationByMACAddressofONUusingrotaryswitchEncryptionofuser’sdataAlgorithmofencryption:AESCFBmodeKey-length:128bitTrafficthatcanbeencrypted:DownstreamonlyCannotdecryptOriginaltextEncryptedtexttoONU-1OriginalTexttoONU-1OLTAuthenticationfailedRegisteredONU-1ONUauthenticationNotRegisteredONU-3RegisteredONU-2authenticatedONUcertificationandencryption(1)4ConfidentialONUcertificationandencryption(2)ONULinkUpGetMACaddr.(=A)GetRotarySWvalue(=B)ONUID-Bisinthetable&&MACaddr.==0?1=B=32?MACaddr.isinthetable?OverwriteONUID-BwithMACaddr.AUnauthenticatedAuthenticatedYesNoNoNoYesYes5ConfidentialOLTauthenticatesONUsOLTprovidesserviceonlytoregisteredONUsbasedonSLAIfauthenticationfailed,theONUwithcorrespondingMACaddressisautomaticallyblockedforbestutilizationofOLTresource.EncryptdatatransferredbetweenOLTandONUProtectdownwarddatafromeavesdroppingbytheothersubscribersPreventupwarddatapretensionandstealingupwardbandwidthWirespeedencryptionanddecryptionbyhardwareencryptionengineONUauthenticationandencryption(3)6ConfidentialContentsSecurityfunctionsSLA/QoSfunctionsVLANfunctionsOAMfunctions7ConfidentialDBA/SchedulerBasicprincipleforbandwidthcontrolDetailedcontrolforeachserviceMultipleLLID/ONUImplementationHardwareengineParametersfordatatransmissionMinimumbandwidth,Maximumbandwidth,Servicetype,DBATokenSize,MaximumBurstSize,etc.PrioritycontrolClassificationToS,CoS/user_priorityIP/MAC-source/destinationaddressEthernetType,etc.MethodOLT:HierarchicalWeightedRoundRobinONU:StrictPrioritySLA/QoSfunctions(1)8Confidential…UpstreamScheduler,Shaper…DownScheduler,Shaper…ONUUpScheduler…ONUDownSchedulerStrictPriorityDown:Perport;Up:PerLLIDDBAHierarchical-WeightedRoundRobinFeedpackettoupstreamqueueONUOLTSLA/QoSfunctions(2)9ConfidentialDBA/SchedulerEfficientupward(fromONUtoOLT)dynamicbandwidthallocationMinimumassuredbandwidth,maximumallowedbandwidthandserviceclasscanbeconfiguredtoeachlogicallinkPrioritycontrolfunctionBasedonclassificationruletoscheduleframetransmissionSLA/QoSfunctions(3)10ConfidentialConfigurationexample1ClassifyframesbyEthernettype(upstream)OLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1Queue0Queue1ShaperSchedulerQueue1Queue2...QueueNSWDBA0x08000x88630x08000x8863SLA/QoSfunctions(4)Link0(highclasspriority):forIPframesLink1(lowclasspriority):forPPPoEframes11ConfidentialOLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1Queue0Queue1ShaperSchedulerQueue1Queue2...QueueNSWDBA192.168.10.5192.168.10.10192.168.10.5192.168.10.10SLA/QoSfunctions(5)Link0:forIPframes(sourceIPaddress=192.168.10.5)Link1:forIPframes(sourceIPaddress=192.168.10.10)Configurationexample2ClassifyframesbysourceIPaddress(upstream)12ConfidentialOLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1Queue0Queue1ShaperSchedulerQueue1Queue2...QueueNSWDBAVID10VID20VID10VID20SLA/QoSfunctions(6)Link0:forframeswithVID10Link1:forframeswithVID20Configurationexample3ClassifyframesbyVID(upstream)13ConfidentialOLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1Queue0Queue1ShaperSchedulerQueue1Queue2...QueueNQueue2Link2Queue3DBASWToS=1ToS=3ToS=1ToS=3Configurationexample4ClassifyframesbyToS(upstream)ToS=5ToS=5SLA/QoSfunctions(7)Link0(highestclasspriority):forVoIPservice(ToS=1)Link1(middleclasspriority):forVoD/IPTVservice(ToS=3)Link2(lowclasspriority):forinternetaccessservice(ToS=5)14ConfidentialContentsSecurityfunctionsSLA/QoSfunctionsVLANfunctionsOAMfunctions15ConfidentialVLANmodeSupportedbyOLTNon-tagTransparentTagDoublePrioritySharedPrioritySharedTransparentPrioritySharedExchangeSupportedbyONUPortbased16ConfidentialNon-tag(SimpleBridged)VLAN(Upstream)OLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1ONU2UNI#1UNI#2UNI#3UNI#4PONLink2Link3PONUplinkLink0123MACAddressMAC1MAC2MAC3MAC4Non-TagMAC2OLTlearnsframe’sMAC-SAfromONU.(MAC-SA:SourceMACaddress)Non-TagMAC417ConfidentialOLTONU1UNI#1UNI#2UNI#3UNI#4ONU2UNI#1UNI#2UNI#3UNI#4PONLink2Link3Uplink0123BroadcastLink0BroadcastLinkBroadcastBroadcastLinkPONLink0Link1BroadcastMAC1MAC2MAC3MAC4UnknowLinkMACPONMAC5Non-TagMAC1MAC5Non-tag(SimpleBridged)VLAN(Downstream)FrameswithknownMAC-DA(non-tag)FramesareforwardedbycorrespondingLLIDbasedonMAC-DA.FrameswithUnknownMAC-DA(non-tag)FramesarefloodedordiscardedaccordingtoconfigurationofOLTTagframesMAC1Non-Tag(MAC-DA:DestinationMACaddress)18ConfidentialTransparentVLAN(Upstream)OLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1PONUplink0Link1VID100VID100Allframesareforwardedwithoutanymodification.VID10019ConfidentialTransparentVLAN(Downstream)OLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1PONLinkVID0100101VID100VID1031102103VID102UplinkVID100VID102VID103VID100VID102-103TagframesFramesareforwardedbycorrespondingLLIDbasedonVID.Non-tagframesFramesarediscarded20ConfidentialTag(Single)VLAN(Upstream)OLTONU1UNI#1UNI#2UNI#3UNI#4PONLink0Link1PONUplinkLinkVID01001200VID200Non-TagVID100Non-TagNon-TagNon-TagTagframesOverwritecustomertagbyprovisionedtagNon-tagframesAddprovisionedtagV