ISO DIS 14229-2
Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services
|Publication Date:||11 February 2021|
|ICS Code (Diagnostic, maintenance and test equipment):||43.180|
This document specifies common session layer services and requirements to provide independence between unified diagnostic services (ISO 14229-1) and all transport protocols and network layer services (e.g. ISO 13400-2 DoIP, ISO 15765-2 DoCAN, ISO 10681-2 Communication on FlexRay, ISO 14230-2 DoK-Line, and ISO 20794-3 CXPI).
This document specifies a common service primitive interface between OSI layer 5 (Session) and layer 4 (Transport) via so-called service request/confirmation
Annex B (informative) describes vehicle diagnostic OSI layer architecture examples.