 MANO framework has been divided into three main functional layers: Virtualized Infrastructure Managers VIMs handles the virtualization of the specialized hardware with VMM (virtual machine managers). It is used to manage the resources (compute, network & storage) of the NFV Infrastructure (NFVI). Figure 7. VIRTUALIZED NETWORK FUNCTIONS NFV MANAGEMENT VNF 1 VNF 2 VNF 3 ORCHESTRATOR VNF 4 VNF 5 VNF 6 VIRTUAL NETWORK, COMPUTER & STORAGE VNF MANAGER VIRTUALIZED RESOURCES VIRTUALIZATION LAYER VIRTUALIZED INFRASTRUCTURE MANAGER COMPUTER STORAGE NETWORK HARDWARE Downloaded 4/15/2022 9:44:49 AM Nova Southeastern University IP Address: 137.52.76.29 NFV Practical Implementation Component responsible for managing NFVI network, compute & storage (underlying) resources. VIMs Key Features Management of the hardware/Inventory resources (compute, network, storage). Management of the software resources like hypervisors etc. It also collects the performance measurements of the virtualized environment and components. Maintaining the Integration of vNF components and the underlying resources. Orchestration of Infrastructure resources. Virtual Network Function Managers (VNFM) Management, Support and configuration of VNFs (Complete lifecycle management of VNFs) NFV Orchestrator (NFVO) NFV Orchestrator provides the lifecycle management of the network services & resources orchestration. NFVO is a key component of the MANO framework which provides the coordinated services around different software elements to work on shared Infrastructure. Key activities of NFVO include scaling, creating, deleting network functions. NFVO Provides Lifecycle management of network functions: Combining different vNFs together to achieve a more complex network function. Instantiate vNF's and manage vNFs with VNFM (vNF Manager). Support for multivendor VNFM. Support of NFV MANO. Support validation and resources request from VNFM. ELASTIC SERVICE CONTROLLER (ESC) Elastic service controller is Cisco's VNFM (Virtual Network Functions Manager). It simplifies oper