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3                                        ITU-T Focus Group IMT-2020 Deliverables



            3.2.2   Multi-Service Management Plane: The functions and interfaces in this plane are used to set up and
            manage  groups  of  network  instances  and/or  nodes.  More  specifically,  the  setup  consists  of
            creating/installing/arranging NFs and interfaces according to the available physical and virtual resources. It
            also comprises the set of functions associated with the network operations, such as fault management,
            performance management and configuration management. It further includes the lifecycle management of
            individual network functions and mobile network instances as a whole. In current mobile networks, this role
            is often performed by the Operations Support System (OSS). The idea is to enable the creation, operation,
            and  control of multiple  dedicated communication  service  networks  running  on  top of  an  IMT-2020 E2E
            infrastructure.
            3.2.3   Integrated Network Management & Operations Plane: Enables the creation, operation, and control
            of dedicated management functions operating on top of an IMT-2020 E2E infrastructure. The collection of
            resources responsible for managing the overall operation of individual network devices.


            4       Abbreviations and acronyms

            This Recommendation uses the following abbreviations and acronyms:
            For the purpose of this Recommendation, the following abbreviations are used:

            BSS         Business Support System

            CAPEX       Capital Expenditure
            CMS         Common Management System

            E2E         End to End
            eNMS        Enhanced Network Management System

            NE          Network Equipment

            NFV         Network functions virtualization
            KPI         Key Performance Index

            LTE         Long Term Evolution

            MANO        Management and Orchestration
            NAT         Network Address Translation

            OAM         Operations and Management

            OCH         Orchestration
            OPEX        Operational Expenditure

            OSS         Operations Support System
            RAN         Radio Access Network

            SDN         Software-defined Network

            VIM         Virtualized Infrastructure Manager
            VNF         Virtual Network Function

            VNFM        Virtual Network Function Manager
            WAN         Wide Area Network









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