Data Collection Requirements and Technologies for Network Digital Twin

A Network Digital Twin is a virtual representation of a real network, which is meant to be used by a management system to analyze, diagnose, emulate, and then control the real network based on data, models, and interfaces. The construction and state update of a Network Digital Twin requires obtaining real-time information of the physical network it represents (i.e., telemetry data). This document aims to describe the data collection requirements and provide data collection methods or tools to build the data repository for building and updating a network digital twin.