Operating envelope analysis of cross-domain real-time control across network and edge-computing resources for highly reliable services

Cross-domain real-time control across optical networking and edge computing is essential for services with stringent latency and reliability, where compute-side workload surges and network events can violate service requirements. We propose an integrated cross-domain real-time control scheme that coordinates optical networking and edge computing through a collect-analyze-control closed loop, making explicit the controller interfaces to both domains and the end-to-end execution flow. We also formalize a controller processing-time model and an operating-envelope computation that maps collection/analysis cycle settings to real-time feasibility and thread (pipeline) requirements for the controller. We validate the formulation with numerical analysis supported by a practical prototype. At 10 ms collection and analysis cycles, the controller’s worst-case processing time is 74 ms, meeting a 90 ms budget. Cycle sweeps show strong agreement between the proposed model and measurements. These results establish the feasibility of sub-100 ms cross-domain closed-loop control on a practical single-thread controller and provide deployable guidance for configuring cycles and right-sizing controller resources via the proposed envelope-based formulation.