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ISO 21806-4:2020

Road vehicles — Media Oriented Systems Transport (MOST) — Part 4: Transport layer and network layer

Publication date:   Sep 18, 2020

General information

90.93   Standard confirmed   Feb 3, 2026

ISO

ISO/TC 22/SC 31 Data communication

International Standard

43.040.15   Car informatics. On board computer systems

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Scope

This document specifies technical requirements related to the MOST transport layer and network layer functionality:
— the service interface to application layer;
— the network layer services;
— the data transport mechanism;
— the dynamic behaviour of a node;
— the network error management.

Life cycle

NOW

PUBLISHED
ISO 21806-4:2020
90.93 Standard confirmed
Feb 3, 2026