Abstract
The network infrastructures in the future industrial networks need to accommodate, manage and guarantee performance to meet the converged Internet technology (IT) and operational technology (OT) traffics requirements. The pace of IT–OT networks development has been slow despite their considered benefits in optimizing the performance and enhancing information flows. The hindering factors vary from general challenges in performance management of the diverse traffic for green-field configuration to lack of outlines for evolving from brown-fields to the converged network. Focusing on the brown-field, this study provides additional insight into a brown-field characteristic to set a baseline that enables the subsequent step development towards the future’s expected converged networks. The case study highlights differences between real-world network behavior and the common assumptions for analyzing the network traffic covered in the literature. Considering the unsatisfactory performance of the existing methods for characterization of brown-field traffic, a performance and dynamics mixture measurement is proposed. The proposed method takes both IT and OT traffic into consideration and reduces the complexity, and consequently improves the flexibility, of performance and configuration management of the brown-field.
Highlights
ObjectivesNetwork traffic monitoring and analysis are generally categorized into four types of problems depending on the context of the network management objectives [6]
We suggest a characterization approach that can potentially reduce the complexity of the configuration and performance managements of converged Internet technology (IT)–operational technology (OT) networks
It cannot be a fair assumption to classify IT traffic patterns in future networks as burst flows, that is considering the current trend in industry and academia for further digitalization of the factories and migration of some of the control systems functionalities to the fog or the cloud, namely Virtual Programmable Logic Controllers (VPLCs)
Summary
Network traffic monitoring and analysis are generally categorized into four types of problems depending on the context of the network management objectives [6]. The state of resources and the relationship between them is the main focus in configuration management. The process follows a detailed view analysis, where communication patterns are studied for each pair of communicating components, i.e., source and destination. The purpose is to estimate the traffic volume for resource provisioning and capacity planning. Traffic matrix measurement with the general approach of network tomography and direct management is the analysis approach for this objective. This approach, with a detailed view of the system, can even assist in understanding the impact of fault on network capacity
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
