ISO 17987-2-2016 PDF
Name in English:
St ISO 17987-2-2016
Name in Russian:
Ст ISO 17987-2-2016
Original standard ISO 17987-2-2016 in PDF full version. Additional info + preview on request
Full title and description
St ISO 17987-2-2016 — Road vehicles — Local Interconnect Network (LIN) — Part 2: Transport protocol and network layer services. Specifies the transport protocol and the network-layer services for LIN-based vehicle sub-bus clusters, providing segmentation/reassembly, unconfirmed communication primitives and a standardized API to support normal and diagnostic messages on LIN.
Abstract
ISO 17987-2:2016 defines an unconfirmed transport protocol and network-layer service primitives tailored for LIN (Local Interconnect Network) clusters. It enables the transport of application data that may span multiple LIN frames (segmentation and reassembly), supports diagnostic communication aligned with backbone diagnostic concepts, and describes timing, error handling and a standardized API for higher-layer integration.
General information
- Status: Withdrawn (edition 2016 originally published; later revised).
- Publication date: August 2016.
- Publisher: International Organization for Standardization (ISO).
- ICS / categories: 35.240.60, 43.040.15.
- Edition / version: Edition 1 (2016).
- Number of pages: 72.
Scope
Specifies transport protocol primitives, PDU formats and network-layer service primitives to carry application and diagnostic messages over LIN sub-buses. The document covers segmentation and reassembly for multi-frame transfers, mapping of transport PDUs onto LIN link-layer frames, timing and timeout rules, error handling, and a standardized API intended to interoperate with diagnostic frameworks used on backbone buses (e.g., enabling similar diagnostic behaviour to CAN transport implementations). The scope targets LIN clusters where nodes may perform diagnostics directly or mirror backbone diagnostics.
Key topics and requirements
- Transport PDUs and segmentation: Single Frame (SF), First Frame (FF) and Consecutive Frame (CF) semantics and N_PCI control information.
- Standardized network-layer service primitives (e.g., N_USData.request/indication/confirm) and a defined API for higher layers.
- Mapping rules of transport PDUs onto the LIN data link layer and frame structures.
- Timing, timeouts and error-recovery behaviour for multi-frame transfers and unexpected PDUs.
- Diagnostic communication support aligned with UDS-like services to enable diagnostics over LIN and interoperability with backbone diagnostics.
- Network management aspects for LIN clusters (wake-up, sleep, node communication states) and node capability description (NCL/NCF concepts).
- Design goals: minimize load on the LIN master, support diagnostics on capable LIN slave nodes, and provide a consistent API for application/diagnostic stacks.
Typical use and users
Used by vehicle OEM system architects, ECU and LIN-node firmware developers, Tier‑1 suppliers, diagnostic tool vendors and integration/test engineers. Typical applications include designing LIN sub-bus clusters that require multi-frame transport, on-cluster diagnostic access, and consistent integration with backbone diagnostic architectures (e.g., CAN). Implementers rely on the API and PDU mappings when creating transport/network stacks or diagnostic gateways between LIN and backbone buses.
Related standards
Part of the ISO 17987 LIN series; commonly referenced alongside ISO 17987-3 (protocol specification) and other diagnostic and transport standards such as ISO 14229‑2 (UDS session/service primitives), ISO 14229‑7 (UDS on LIN), and ISO 15765‑2 (CAN transport layer) for cross-bus diagnostic consistency.
Keywords
LIN, Local Interconnect Network, transport protocol, network layer, segmentation, PDU, Single Frame, First Frame, Consecutive Frame, N_PCI, service primitives, UDS, diagnostics, NCL, NCF, node capability, LIN cluster, automotive communication.
FAQ
Q: What is this standard?
A: ISO 17987-2:2016 defines the transport protocol and network-layer services for LIN sub-bus clusters in road vehicles, specifying multi-frame transport, service primitives and an API to support both normal and diagnostic messages.
Q: What does it cover?
A: It covers segmentation/reassembly for messages spanning multiple LIN frames, PDU formats (SF/FF/CF), mapping to LIN link-layer frames, timing/timeouts, error handling, diagnostic message handling and network management behaviors for LIN clusters.
Q: Who typically uses it?
A: Vehicle OEMs, ECU/LIN-node firmware engineers, Tier‑1 suppliers, diagnostic tool vendors and test/integration teams working on LIN clusters and diagnostic integration between LIN and backbone buses.
Q: Is it current or superseded?
A: The 2016 edition has been withdrawn and the work has been revised; a newer edition (ISO 17987-2:2025) has been published as the revision to the 2016 version.
Q: Is it part of a series?
A: Yes — it is part of the ISO 17987 series for LIN (multiple parts covering architecture, protocol, transport, test and conformance aspects) and is intended to be used alongside related diagnostic and transport standards for cross-bus consistency.
Q: What are the key keywords?
A: LIN, transport protocol, network layer, segmentation, PDU, diagnostics, UDS, N_PCI, NCL, NCF.