Section: F.2 Network Diagnostics
Content: Network diagnostics helps with scanning, diagnosing and identifying problems within a network. Diagnostics includes gathering data and continuously providing sufficient performance parameters that characterize the quality of the network connection. This includes data of the physical connection as well as of logical links and sub-networks. Exposure of relevant (and possibly aggregated) performance parameters ensures a quick reaction in case of failure as well as identifying network connectivity, performance and other related problems. Network diagnostic should be able to: - be proactive (to early detect failures) and not only reactive (to deal with faults that have already occurred). - accurately differentiate malfunctions/failures and evaluate their impact on the service/network. - provide clear explanations about what happened. - suggest corrective actions, and possibly perform them automatically. Furthermore, specific connectivity information is also of interest as well as usage information (e.g. traffic load) of the node (e.g. RAN). Network diagnostic information needs to be generated automatically and, in case of a hosted or virtual network deployment, be made available to the tenant of the network via a suitable API.