1. Describing ServiceChain With TOSCA Proposal www.huawei.com jiachunxiu@huawei.com fuwensheng@huawei.com yudelei@huawei.com

2. 2 ServiceChain Definition from Tenant View Classifier Classifier Policy Service Policy Service1 of Tenant A Service2 of Tenant A Tenant B VAS:Value-added Service; SLA: Service Level Agreement VAS Type9VAS Type4VAS Type7VAS Type6VAS Type2VAS Type3 VAS Type8VASType1VAS Type5 SLA1 SLA2 SLA3 Service Chain Definition: to define VAS types sequence and SLA for tenant, tenant only specify NF type for each VAS and leaving the decision of each VAS instance to OSS. Tenant A Tenant B Service Chain 1 Service Chain2 Service Chain 3

3. 3 ServiceChain Definition from OSS View Classifier Classifier Policy Flows Flow Policy Flow1 Flow2 Flow3 VAS:Value-added Service; CP: Connect Point; SLA: Service Level Agreement NF9 CP NF4 CP NF7 CP NF6 CP NF2 CP NF3 CP NF8 CP NF1 CP NF5 CP SLA1 SLA2 SLA3 Service Chain Definition: to define VAS Instances and CPs sequence for flow. For each flow, specify the detailed VAS instance and CP.

4. 4 ServiceChain Model Defininition Service Chain Network Function Connect Point Flow Policy SLA Monitor QoSMonitor n n 1 n n 1 1 1nn Association NoModelDescription 1ServiceChain 2FlowPolicy 3SLA 4Monitor NoModelDescription 5NetworkFunction 6ConnectPoint 7QoS 8Monitor Association

5. 5 ServiceChain Model mapping to Tosca Service Chain VAS Connect Point SLA Monitor QosMonitor n n 1 n nn 1 nnn Association Inherit/Extend NoModelDesign Method 1ServiceChain Inherit from ServiceTemplate and extend 2FlowPolicyNew 3SLANew 4MonitorNew NoModelDesign Method 5VAS Inherit from ServiceTemplate and extend 6ConnectPointNew 7QoSNew 8MonitorNew Flow Policy Association

6. 6 ServiceChain Model——New Policy Type Definition TOSCA.Policy.Root TOSCA.Policy.TenantFacingPolicyTOSCA.Policy.NetworkPolicy TOSCA.Policy.IPFlowPolicy TOSCA.Policy.TenantFacing Policy Derived from TOSCA.Policy.Root No Property Name Property Typedescription 1 Tenant SLA Level ENUM Premium Silver Broze 2 Service Type ENUM Video Web Voice TOSCA.Policy. IPFlowPolicy Derived from TOSCA.Policy.NetworkPolicy NoProperty NameProperty Typedescription 1srcIPstringEg: 192.168.1.0/24 2srcPortRangestringEg: 1~200 3desIPstringEg: 192.168.1.0/24 4desPortstringEg: 1~200 5protocolstring

7. 7 ServiceChain Model——New SLA Type Definition TOSCA.SLA.Root TOSCA.SLA.TenantFacingSLATOSCA.SLA.NetworkSLA TOSCA.SLA.TenantFacingSLA Derived from TOSCA.SLA.Root No Property Name Property Type description 1Availabilityfloat% 2Delayintms 3Jitterintms 4Lossfloat% 5 Restoration time intms TOSCA.SLA.NetwrokSLA Derived from TOSCA.Policy.NetworkPolicy No Property Name Property Type description 1Delaystring 2Jitterint 3Lossstring 4Bandwidthint CIR PIR CBR PBR

8. 8 ServiceChain Model——New CP Definition TOSCA.CP.Root NoProperty NameProperty Typedescription 1IDint 2namestring 3Typestring Eg: VLAN VXLAN Source_MAC SFC Physical 4attrtags Name Value 6admin_statusENUM

9. 9 ServiceChain Model——New Monitor Definition TOSCA.Monitor.Root No Property Name Property Type description 1IDint 2namestring 5Tags Name Value

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