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IEC 62439-2 Ed. 3.0 b:2021
M00000645
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IEC 62439-2 Ed. 3.0 b:2021 Industrial communication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP)
standard by International Electrotechnical Commission, 12/01/2021
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The IEC 62439 series is applicable to high-availability automation networks based on the ISO/IEC/IEEE 8802-3 (IEEE Std 802.3) (Ethernet) technology.
This part of the IEC 62439 series specifies a recovery protocol based on a ring topology, designed to react deterministically on a single failure of an inter-switch link or switch in the network, under the control of a dedicated media redundancy manager node.