Media Redundancy Protocol

Figure 1: MRP ring in Ring-Closed status
Figure 2: MRP ring in Ring-Open status

Media Redundancy Protocol (MRP) is a data network protocol standardized by the International Electrotechnical Commission as IEC 62439-2. It allows rings of Ethernet switches to overcome any single failure with recovery time much faster than achievable with Spanning Tree Protocol. It is suitable to most industrial Ethernet applications.

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