ISO 17458-2:2013规定了用于可靠汽车网络的FlexRay通信协议。FlexRay协议的一些基本特征包括同步和异步帧传输、同步传输期间的保证帧延迟和抖动、异步传输期间的帧优先级、跨多个网络的单个或多个主时钟同步时间同步、错误检测和信令，以及可伸缩的容错。

ISO 17458-2:2013 specifies the FlexRay communication protocol which is specified for a dependable automotive network. Some of the basic characteristics of the FlexRay protocol are synchronous and asynchronous frame transfer, guaranteed frame latency and jitter during synchronous transfer, prioritization of frames during asynchronous transfer, single or multi-master clock synchronization time synchronization across multiple networks, error detection and signalling, and scalable fault tolerance.