VoLTE Use Case Proposal Amsterdam Release – Alternate proposal Seshu Kumar M– Huawei

Draft for the detailed SO Flows for R1 Initiates ARIA orchestration engine and calls VFC/APPC as a plugin Performs Service Orchestration functions: Decomposes services Hands off to controllers for service/application instantiation Service Orchestration Declarative TOSCA Flow (VCPE) Initiate top level BPMN Imperative BPMN Flow (VoLTE) Initiates specific BPMN calls adapting the controller through rest calls Existing MSO BPMN flow (vFW) Retain the existing open-Ecomp code Some change to adapt the MultiVim Call VF-C APP-C Multi-VIM/MultiCloud Cloud & WAN OpenStack Azure VMware RackSpace ......

Service Descriptor Profile SD resource VL VF … NSD WAN Descriptor To Be Confirmed metadata: name: service name description: template for voLTE version： vendor： topology_template: node_templates: res1: description: resource 1 description properties: depends: id：resource id resourceType: type: resource 1 toscatype res2: description: overlayVPN id: resource id type: resource 2 toscatype res3: description: vEPC id： resource id type: resource 3 toscatype name description other attributes Resource list Resource dependency Resource id resourceType The type of resource. Resource Types : VF (Virtual Function) - A subsystem in a service, it can include one or more VFCs. This is what NFV spec refers as VNF. VL (Virtual Link) - Describes the basic topology of the connectivity between one or more VFs (or VFCs in a VF). CP (Connection Point) - Represents the virtual and/or physical interface of a VF (or VFC). VFC (Virtual Function Component) – A subset of the VF (sometimes refered to as “building-block” of the VF). VFCMT – new resourceType as from SDC 1702. VFCMT is a reusable monitoring template created by DCAE Designer. PNF – Physical Network Function. the PNF is modeled in SDC as a resource (similar to VF) that may or may not contain CP / VL resources. Ex. “VF” Resource type Resource tosca type

Design Time Model Behind VoLTE Use Case Approach for R1 HSS(VNF) IMS(VNF) ID(invariantUUID) CSCF(VNF) IMS(Service) SBC(VNF) VoLTE E2E(Service) EPC(VNF) ....(VL) Service template For Network Service ID(invariantUUID) ....... xGW(VNF) Service template For E2E MME(VNF) EPC(Service) PCRF(VNF) Design the IMS/EPC/... services and HSS/.... as VF node Design the VoLTE service and IMS/EPC as VF node ....(VL) Service template For Network Service