标准摘要
[中文适用范围]： 本部分是IEC 61162系列标准的补充，适用于需要更高安全性和安全标准的情况，例如由于外部威胁暴露较高或为了提高网络完整性。本文件提供了用于IEC 61162-460兼容网络的设备的要求和测试方法，以及网络本身的要求和从网络到其他网络互联的要求。本文件还包含关于冗余IEC 61162-460兼容网络的要求。本文件未引入IEC 61162-450中定义的新的应用层协议要求。 [外文原描述]： IEC 61162-460:2018 is an add-on to IEC 61162-450 where higher safety and security standards are needed, for example due to higher exposure to external threats or to improve network integrity. This document provides requirements and test methods for equipment to be used in an IEC 61162-460 compliant network as well as requirements for the network itself and requirements for interconnection from the network to other networks. This document also contains requirements for a redundant IEC 61162-460 compliant network. This document does not introduce new application level protocol requirements to those that are defined in IEC 61162-450. This second edition of IEC 61162-460 cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) 460-Switches and 460-Forwarders are required to implement IGMP snooping; b) connection between secure and non-secure areas requires a 460-Forwarder as an isolation element; c) SFI collision detection added as function of network monitoring; d) 460-Gateway and 460-Wireless gateway are no longer required to report to the network monitoring; e) all alerts from network monitoring have standardized alert identifiers.
英文名称Maritime navigation and radiocommunication equipment and systems - Digital interfaces - Part 460: Multiple talkers and multiple listeners - Ethernet interconnection - Safety and security