cations Standards Institute (ETSI), Group Specification (GS) v2.1.1. 17 NGMN Alliance (2016). Description of network slicing concept. NGMN 5G P 1. 18 NGMN Alliance (February 2015). NGMN SG White Paper. February 2015. 19 3GPP (September 2019). 3rd Generation Partnership Project; Technical Specification group services and system aspects; System architecture for the 5G system; Stage 2 (Release 15). V15.7.0 (09-2019). References 20 Taleb, T., Samdanis, K., Mada, B. et al. (2017). On multi-access edge computing: a survey of the emerging 5G network edge cloud architecture and orchestration. IEEE Communications Surveys & Tutorials 19 (3): 1657-1681. 21 Zhang, D., Zhou, Z., Mumtaz, S. et al. (December 2016). One integrated energy effi- ciency proposal for 5G IoT communications. IEEE Internet of Things Journal 3 (6): 1346-1354. 22 Ericsson (n.d.). Switch on 5G for business. Available at: https://www.ericsson.com/en/ 5g/5g-for-business (accessed June 18, 2020). 23 HTTP (n.d.). Over TLS. Available at: https://tools.ietf.org/html/rfc2818 (accessed June 18, 2020). 6 Enabling Technologies 6.5 Operations, Administration, and Management Vladimir Yanover Cisco Systems, Inc., Israel 6.5.1 Introduction The 5G system is expected to provide optimized support for a variety of communication services, different traffic patterns, and different end user categories. To enable efficient network operations, 3GPP developed an OAM framework that can be applied to the 5G system and 3GPP legacy systems. The 3GPP management system directly manages 3GPP network components (e.g. NG-RAN, 5GC). For non-3GPP domains, such as the transport network, 3GPP management system needs to coordinate with the corre- sponding management systems of these domains. The 5G management framework applies the novel concept of service-based management architecture, which includes NG-RAN and 5GC information models, new aspects of PM, and special arrangements for management of disaggregated RAN. For the networks with slicing support, the procedures for management of network