name: EPC
full_form: Evolved Packet Core
context: In case the EPC NF is virtualized, the performance of an EPC NF may be impacted by the underlying VRs (i.e., virtual CPUs, virtual memories and virtual storages). To enable the operator to anaylize the impact of the VRs to the performance of the EPC NF, in addition to the process usage as described in use case A.20, the performance of the virtual memory and virtual disk also needs to be monitored. The usage is the key measurement for the performance of the VR, it can tell whether the VR is overloaded and whether the VR is efficiently utilized. By correlating the VR related measurements with the performance measurement of the EPC NF, the operator can know whether the EPC NF performance is impacted by the VRs. When necessary, the operator may take appropriate action to solve the performance issue of the EPC NF, for example, to scale in/out the VNF instance that realizes the EPC NF, or switch on/off the auto-scaling for the VNF instance.
description: The Evolved Packet Core (EPC) is a network architecture that provides a framework for managing and delivering packet-based services in mobile networks. It is responsible for handling user authentication, session management, and connection establishment, enabling smooth transitions of users across network regions.
explanation: EPC is classified as a Network because it forms the core infrastructure for managing and routing data traffic within mobile networks.
section_title: A.37Use case of VR related measurements for EPC NFs
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