ISO 17987-2:2016 specifies a transport protocol and network layer services tailored to meet the requirements of LIN‑based vehicle network systems on local interconnect networks. The protocol specifies an unconfirmed communication.

The LIN protocol supports the standardized service primitive interface as specified in ISO 14229‑2.

ISO 17987-2:2016 provides the transport protocol and network layer services to support different application layer implementations like

– normal communication messages, and

– diagnostic communication messages.