30 - software defined networking apache cloudstack chiradeep vittal中软件定义网络

SoftwareDefinedNetworkinginApacheCloudStackChiradeepVittalCloudStackCommitter@chiradeepAgendaIntroductiontoCloudStackandIAASWhatisSDNWhySDNandIAAS?CloudStack’sNetworkModelExtensibleNetworkinginCloudStackSDNintegrationsinCloudStackCloudStack’snativeSDNapproachFutureHistoryIncubatingintheApacheSoftwareFoundationsinceApril2012OpenSourcesinceMay2010Inproductionsince2009Tonsofdeployments,includinglarge-scalecommercialonesApacheCloudStackBuildyourcloudthewaytheworld’smostsuccessfulcloudsarebuiltHowdidAmazonbuilditscloud?CommodityServersCommodityStorageNetworkingOpenSourceXenHypervisorAmazonOrchestrationSoftwareAWSAPI(EC2,S3,…)AmazoneCommercePlatformHowcanYOUbuildacloud?ServersStorageNetworkingOpenSourceXenHypervisorAmazonOrchestrationSoftwareAWSAPI(EC2,S3,…)AmazoneCommercePlatformHypervisor(Xen/KVM/VMW/)CloudStackOrchestrationSoftwareOptionalPortalCloudStackorAWSAPISDNDefinitionSeparationofControlPlanefromthehardwareperformingtheforwardingfunctionControlplaneislogicallycentralizedSDNAdvantagesCentralizedcontrolmakesiteasiertoconfigure,troubleshootandmaintainEliminates‘box’modeofconfigurationEnablescontrolatahighlevelRelatedtoSDNAPIlayeroveracollectionof‘boxes’APIlayercommunicateswithboxesusingbox-levelAPIs/ssh/telnetOpenFlowStandardprotocolforthecentralizedcontrolplanetotalktotheforwardingelements.Tunnels/overlaysSDNisvaluableforvirtualtopologiesInitialtargetofSDNimplementationCentralizedcontrolplaneMySQL/NoSQLControllerClusterAPIBoxesOpenflow/ssh/netconf/otherDefiningCloudComputing(IAAS)AgilityRe-provisioncomplexinfrastructuretopologiesinminutes,notdaysAPIAutomatecomplexinfrastructuretasksVirtualizationEnablesworkloadmobilityandloadsharingMulti-tenancyShareresourcesandcostsDefiningCloudComputing(IAAS)ScalabilityAbilitytoconsumeresourceslimitedbybudget,notbyinfrastructureElasticityScaleupanddownondemandReduceneedtoengineerforpeakloadSelf-serviceNoITassistanceCloudNetworkingRequirementsAgileComplexnetworkingtopologiescreatedbynon-networkengineersAPILanguagetotalkwiththenetworkinfrastructurelayer(notCLI)VirtualizationHypervisor-levelswitchesworktogetherwithphysicalinfrastructureCloudNetworkingRequirementsScalabilityUsuallymeansL3inthephysicalinfrastructureElasticityReleaseresourceswhennotinuseIntroducenewresourcesondemandSelf-serviceNovicesdeploying,maintaining,troubleshootingvirtualnetworksIAAS+SDN–madeforeachotherSDNenablesagilityAPItocontrollerenableseasychangestonetworksSDNworkswithvirtualization/vSwitchesTypicalofmostSDNcontrollersSDNcontrollersaredesignedforlargescaleSDNenablesvirtualnetworkingTheillusionofisolatednetworksontopofsharedphysicalinfrastructureSDNissuesDiscoveryofvirtualaddress->physicaladdressmappingVxLAN=multicastGRE=programmedbycontrolplaneL3isolation=nomapping,nodiscoverySDNissuesStatemaintenanceLargenumberofendpoints+flowsHigharrivalrateofnewflowsNeedsfastandscalablestorageandprocessingDifferentiatorbetweenvendorsSDNissuesL4-L7ServiceinsertionandorchestrationHowdoendpointsgetservicessuchasFirewallLoadbalancersIDS/IPSServicelevelsandperformanceServiceChainingNetworkVirtualizationinIAASTenant1VM1Tenant1VM2Tenant1VM3Tenant1VM4Tenant1VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.110.1.1.210.1.1.310.1.1.410.1.1.5InternetNetworkVirtualizationinIAASTenant1VM1Tenant1VM2Tenant1VM3Tenant1VM4PublicNetworkTenant1VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1NATDHCP

FWPublicIPaddress65.37.141.1165.37.141.3610.1.1.210.1.1.310.1.1.410.1.1.5Tenant1EdgeServicesAppliance(s)InternetNetworkVirtualizationinIAASTenant1VM1Tenant1VM2Tenant1VM3Tenant1VM4PublicNetworkTenant1VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1NATDHCP

FWPublicIPaddress65.37.141.1165.37.141.3610.1.1.210.1.1.310.1.1.410.1.1.5Tenant1EdgeServicesAppliance(s)InternetTenant1EdgeServicesAppliance(s)LoadBalancingVPNNetworkVirtualizationinIAASInternetTenant1VM1Tenant1VM2Tenant1VM3Tenant1VM4PublicNetworkTenant1VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1NATDHCP

FWPublicIPaddress65.37.141.1165.37.141.3610.1.1.210.1.1.310.1.1.410.1.1.5Tenant1EdgeServicesAppliance(s)Tenant2VM2Tenant2VM3Tenant2VM1Tenant2VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1VPNNATDHCP10.1.1.210.1.1.310.1.1.4Tenant2EdgeServicesAppliancePublicIPaddress65.37.141.2465.37.141.80Tenant1EdgeServicesAppliance(s)LoadBalancingTenant1VM1Tenant1VM2Tenant1VM3Tenant1VM4PublicNetworkTenant1VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1NATDHCP

FWPublicIPaddress65.37.141.1165.37.141.3610.1.1.210.1.1.310.1.1.410.1.1.5Tenant1EdgeServicesAppliance(s)Tenant2VM2Tenant2VM3Tenant2VM1Tenant2VirtualNetwork10.1.1.0/24Gatewayaddress10.1.1.1VPNNATDHCP10.1.1.210.1.1.310.1.1.4Tenant2EdgeServicesAppliancePublicIPaddress65.37.141.2465.37.141.80Tenant1EdgeServicesAppliance(s)LoadBalancingCloudStackNetworkModelMapvirtualnetworkstophysicalinfrastructureDefineandprovisionnetworkservicesinvirtualnetworksManageelasticityandscaleofnetworkservicesCloudStackNetworkModel:

NetworkServicesNetworkServicesL2connectivityIPAMDNSRoutingACLFirewallNATVPNLBIDSIPSCloudStackNetworkModel:

NetworkServicesNetworkServicesL2connectivityIPAMDNSRoutingACLFirewallNATVPNLBIDSIPSServiceProvidersVirtualappliancesHardwarefirewallsLBappliancesSDNcontrollersIDS/IPSappliancesVRFHypervisorCloudStackNetworkModel:

NetworkServicesNetworkServicesL2connectivityIPAMDNSRoutingACLFirewallNATVPNLBIDSIPSNetworkIsolationNoisolationVLANisolationOverlaysL3isolationServiceProvidersVirtualappliancesHardwarefirewallsLBappliancesSDNcontrollersIDS/IPSappliancesVRFHypervisorServiceCatalogCloudusersarenotexposedtothenatureoftheserviceproviderCloudoperatordesignsaservicecatalogandoffersthemtoendusers.Gold={LB+FW,usingvirtualappliances}Platinum={LB+FW+VPN,usinghardwareappliances}Silver={FWusingvirtualappliances,10Mbps}ServiceCatalogexamples10.1.1.0/24VLAN10010.1.1.1DHCP,DNSNATLoadBalancingVPN10.1.1.2VM110.1.1.3VM210.1.1.4VM310.1.1.5VM4CSVirtualRouterL2networkwithsoftwareappliances65.37.141.11165.37.141.11210.1.1.0/24VLAN100DHCP,DNSCSVirtualRouter10.1.1.11265.37.141.11210.1.1.2VM110.1.1.3VM210.1.1.4VM310.1.1.5VM4NetscalerLoadBalancer10.1.1.165.37.141.111JuniperSRXFirewallL2networkwithhardwareappliancesNAT,VPNUpgradeMulti-tiervirtualnetworkingVirtualappliance/HardwareDevicesCustomerPremisesIPSecorSSLsite-to-siteVPNInternetNetworkServicesIPAMDNSLB[intra]S-2-SVPNStaticRoutesACLsNAT,PFFW[ingress&egress]Loadbalancer(virtualorHW)MPLSVLANWebVM1WebVM2WebVM3WebVM4Websubnet10.1.1.0/24VLAN101Appsubnet10.1.2.0/24AppVM1AppVM2VLAN353DBSubnet10.1.3.0/24DBVM1VLAN2724OrchestrationOrchestration

describestheautomatedarrangement,coordination,andmanagementofcomplexcomputersystems,middlewareandservicesWikipediaCloudStackArchitectureOrchestrationCorePluginFrameworkHypervisorPluginsHypervisorPluginsNetworkPluginsNetworkPluginsAllocatorPluginsAllocatorPluginsStoragePluginsCloudStackArchitectureOrchestrationCorePluginFrameworkHypervisorPluginsHypervisorPluginsNetworkPluginsNetworkPluginsAllocatorPluginsAllocatorPluginsXenServerVMWareKVMOracleVMRandomUser-concentratedIntelTXTAffinityNiciraNetscalerBrocadeMidoNetCloudStackOrchestrationOrchestrationCorePluginFrameworkHypervisorPluginsHypervisorPluginsNetworkPluginsNetworkPluginsAllocatorPluginsStoragePluginsAPIAPIAPIStorageResourcePhysicalResourcesStorageResourceNetworkResourceNetworkResourceHypervisorResourceHypervisorResourceAllocatorPluginsAllocatorPlugins123456789OrchestrationstepscanbeexecutedinparallelorinsequenceCloudStackandSDNOrchestrationcorePluginFrameworkHypervisorPluginsHypervisorPluginsNetworkPluginsNetworkPluginsAllocatorPluginsStoragePluginsAPIAPIAPIStorageResourcePhysicalResourcesStorageResourceNetworkResourceSDNcontrollerHypervisorResourceHypervisorResourceAllocatorPluginsAllocatorPlugins123456789NetworkpluginisthegluethatunderstandstheSDNcontroller’sAPICloudStackSDNIntegrationNiciraNVPL2(STT)isolationin4.0SourceNAT/LogicalRouterin4.2BigSwitchVLANisolationin4.1VNSin4.2MidokuraL2-L4networkvirtualizationComingin4.2CloudStackNativeTechpreview(since4.0)RequiresXenServerOrchestrationcorePluginFrameworkHypervisorPluginsHypervisorPluginsNetworkPluginsNetworkPluginsAllocatorPluginsStoragePluginsAPIAPIAPIStorageResourceStorageResourceNetworkResourceSDNcontrollerHypervisorResourceHypervisorResourceAllocatorPluginsAllocatorPluginsVM1VM3VRHost1Host3Host4VM2Host2Start3VMsAllocatehypervisorsVMOrchestra