Timing Analysis of GOOSE in a Real-World Substation

Despite the importance of the Generic Object Ori-ented Substation Event (GOOSE) protocol in substation automation, there is very little exploration of its behavior in real-world deployments. Due to the sensitivity of actual data, various analyses are performed only on small testbeds or emulated traffic with designed assumptions of how these systems behave. In this work, we provide a timing characterization of the GOOSE protocol in a real-world substation. We compare the results with a testbed that mimics a real-world power system. We also discuss the insights from the analysis regarding presumed differences between simulated traffic and real-world traffic to understand the actual behavior of the devices.