本文件定义了ISO 21111系列中使用的术语，并概述了车内以太网标准，包括与ISO/IEC/IEEE 8802-3:2017[7]及其修正案的补充关系，符合ISO/IEC 7498-1[1]和ISO/IEC 10731:1994[2]中规定的OSI参考模型的文件结构，以及物理实体的类型，车内以太网特定功能等。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document defines the terms which are used in the ISO 21111 series and provides an overview of the standards for in-vehicle Ethernet including the complementary relations to ISO/IEC/IEEE 8802-3:2017[7]and its amendments, the document structure in accordance with OSI reference model specified in ISO/IEC 7498-1[1]and ISO/IEC 10731:1994,[2]type of physical entities, in-vehicle Ethernet specific functionalities, and so on.All current amendments available at time of purchase are included with the purchase of this document.