sdn的形成与工作原理

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1、MakingSDNsWorkNickMcKeownStanfordUniversityThanksto:NSF,GPO,OpenNetworkingResearchCenter(ONRC)CableLabs,Cisco,DoCoMo,DT,Ericsson,Google,HP,Huawei,Intel,Juniper,NEC,TexasInstrumentsVerticallyintegratedClosed,proprietarySlowinnovationSmallindustrySpecializedOp

2、eratingSystemSpecializedHardwareAppAppAppAppAppAppAppAppAppAppAppSpecializedApplicationsHorizontalOpeninterfacesRapidinnovationHugeindustryMicroprocessorOpenInterfaceLinuxMacOSWindows(OS)ororOpenInterfaceVerticallyintegratedClosed,proprietarySlowinnovationAp

3、pAppAppAppAppAppAppAppAppAppAppHorizontalOpeninterfacesRapidinnovationControlPlaneControlPlaneControlPlaneororOpenInterfaceSpecializedControlPlaneSpecializedHardwareSpecializedFeaturesMerchantSwitchingChipsOpenInterfaceScottShenkerat1stONSin2011“TheFutureofN

4、etworkingandthePastofProtocols”SoftwareDefinedNetwork(SDN)GlobalNetworkViewNetworkVirtualizationPacketForwardingPacketForwardingPacketForwardingPacketForwardingPacketForwardingNetworkOSAbstractNetworkViewControlProgramsControlProgramsControlProgramsSoftwareD

5、efinedNetwork(SDN)GlobalNetworkViewNetworkVirtualizationPacketForwardingPacketForwardingPacketForwardingPacketForwardingAbstractNetworkViewControlProgramsControlProgramsControlProgramsfirewall.c…if(pkt->tcp->dport==22)dropPacket(pkt);…PacketForwardingNetwork

6、OS………………

7、n>…………WithSDNwewill:Formallyverifythatournetworksarebehavingcorrectly.Identifybugs,thensystematicallytrackdowntheirrootcause.Howdootherindustriesdoit?MakingASI

8、CsWork$10Btoolbusinesssupportsa$250BchipindustrySpecificationFunctionalDescription(RTL)Testbench&VectorsFunctionalVerificationLogicalSynthesisStaticTimingPlace&RouteDesignRuleChecking(DRC)Layo