Title Industrial communication networks – High availability automation networks – Part 2: Media Redundancy Protocol (MRP)
Acronym IEC 62439-2
Document Type Standard
Committee TC 65/SC 65C - INDUSTRIAL NETWORKS
Published Year 2021
Link https://webstore.iec.ch/publication/62849
Abstract

IEC 62439-2:2021 is applicable to high-availability automation networks based on the ISO/IEC/IEEE 8802-3 (IEEE Std 802.3) (Ethernet) technology.
The IEC 62439-2:2021 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