标准摘要
[中文适用范围]： IEC 62439系列适用于基于ISO/IEC/IEEE 8802-3（IEEE Std 802.3）（以太网）技术的高可用性自动化网络。本部分IEC 62439系列规定了基于环拓扑的恢复协议，旨在确定性响应网络中交换机间链路或交换机的单个故障，由专用的媒体冗余管理器节点控制。 [外文原描述]： 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. The contents of the corrigendum of May 2023 have been included in this copy.
英文名称Industrial communication networks - High availability automation networks - Part 2: Media Redundancy Protocol (MRP)