Research on Delay Model of Deterministic Service Chain in the Industrial Internet

With the widespread adoption of Ethernet-based technologies in industrial environments, the prevalence of multi-application collaborative service chains is quickly increasing. Therefore, a significantly greater correlation between networks and applications has emerged as a critical development trend. Recently, cross-application service chains shifted their focus to pursue global optimization rather than exclusively taking advantage of local modules. However, existing deterministic techniques primarily focus on the management and control of either network devices or edge computing devices. This paper emphasizes the necessity for service chain-oriented implementations of modeling and analysis in areas such as computing power networks and deterministic application layer systems. We propose a general delay model for deterministic service chains that combines network calculus and queueing theory to facilitate comprehensive performance evaluation of deterministic systems under the mutual influence of multiple deterministic services.