A Layer‑2 industrial Ethernet switch provides reliable, low‑latency packet forwarding with FPGA‑based performance and supports seamless HSR/PRP redundancy for zero‑time network recovery. Built with rugged metal housing and wide –40°C to +85°C operation, it meets IEC61850‑3 and IEEE1613 standards for harsh industrial environments. It offers flexible copper/fiber interfaces and advanced management options, making it ideal for substations, smart‑grid, SCADA, and automation networks