Redundancy in industrial networking refers to designing the network with backup paths, devices, and communication links to ensure continuous operation even if a failure occurs. In industrial environments such as manufacturing plants, power systems, or smart infrastructure, network downtime can lead to production loss or safety risks.
To prevent this, industrial networks use redundancy protocols (https://comxus.com/what-is-network-redundancy-in-industrial-switch-how-does-it-work/) like RSTP, ERPS, and ring topology, which enable fast recovery often within milliseconds. If one link or switch fails, the network automatically reroutes traffic through an alternate path. This ensures stable and uninterrupted communication between controllers, sensors, and monitoring systems, making redundancy a critical component of reliable industrial network design.