SDN for Service Provider Networks_Transport SDN_Kevin_Sheehan_ONS2015_FINAL2

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1、SDNforServiceProviderTransportNetworksKevinSheehanCienaAgilityJune2015Transport(opticaland/orOTN)networksarepresentandare“dualpurpose:”InterconnectionofIPandEthernetservicedeliverynetworkelements-“servernetwork(s)”Servicedeliverynetwork(directly)PacketServicedeliveryn

2、etworkServicedeliverynetwork(s)OTNServernetwork(s)DWDMSDNwantsto“optimallycontrol”globalnetworkstate:AstransportnetworksbecomedynamictherearelargebenefitsfromjointSDNcontrolofpacketandtransportnetworksBandwidth-on-Demand/ServiceBandwidthCalendaringrapid/largeprovision

3、edservicedynamics:“flow-through”impactstotransportnetwork(s)serviceconstraint-basedresourceallocation:e.g.,servicelatencydifferentiationLargeITworkloadstooff-siteclouds:anexampleofaspecificapplicationneedfor“rapid/large”provisionedservicedynamicscloudorchestrationInte

4、ntNBIControllerProviderCloudAEnterpriseCloudProviderCloudBDynamicRestorationAutomated,dynamicadaptationtochangingservicemap&resourceuseIncreasedresourceefficiency:reducedcapexatloweropexPath1Path2Path3DifferentbackuppathsplannedforeachsegmenttopreventcontentionAutomat

5、edandcontinuous“networkplanning”Intuitiveresourceheatmaps:reducedcapex(forlowopex)CurrentUtilization54.46%OptimizedUtilization31.25%OpticalFixedFiltersBroadcastAmpAmpAmp&BridgeAmpAmpWSSWSSAmpChannelChannelWSSWSSMuxMuxAmpAmpl1lnl1lnOpticalColorlessBroadcastMuxDemuxChan

6、nelMuxl1lnl1l2l1l1l1lnProgrammingFlexibility(StateConfigurability)CostAppAppAppAppAppMulti-instanceONOSOpenFlowCiena6500MediationOpenFlow