ISO 21210:2012

Overview

ISO 21210:2012 - "Intelligent transport systems (ITS) - Communications access for land mobiles (CALM) - IPv6 Networking" - defines how standard IETF IPv6 protocols are combined and applied so ITS stations can communicate over the global Internet. It does not create new IPv6 protocols or message formats; instead it specifies required IPv6 networking functionality, mobility and addressing behavior, and how IPv6 integrates with the CALM architecture to provide global reachability and continuous connectivity for ITS.

Key topics and requirements

• Scope: IPv6 networking between two or more ITS stations communicating over the global Internet.
• No new protocols: Uses existing IETF RFCs (e.g., RFC 2460, RFC 4291, RFC 4294, RFC 3963/NEMO, RFC 4861, RFC 4862, RFC 5648) and defines how to combine them for ITS use.
• Mobility & handover: Specifies IPv6-based mobility support needed to maintain continuous Internet connectivity for moving ITS stations (NEMO, Multiple Care-of Addresses / MCoA, mobile edge multihoming concepts).
• Addressing & configuration: Guidance on IPv6 addressing (global unicast, home/care-of addresses, link-local) and autoconfiguration in mobile ITS environments.
• CALM integration: Procedures for sharing IPv6-layer information with other ITS station components are covered by ISO 24102; ISO 21210 assumes familiarity with the CALM architecture (ISO 21217).
• Conformance baseline: Implementations must at minimum conform to IETF RFC 4294 (IPv6 Node Requirements); protocol implementation conformance statements (PICS) are anticipated to complement IPv6-ready test programs.

Practical applications and users

Who benefits from ISO 21210:

• Automotive OEMs and tier‑1 suppliers building connected vehicle systems that require stable IPv6 connectivity across access technologies.
• ITS equipment vendors implementing ITS stations, access routers, border/home agents, or mobile routers for vehicle networks and public transport.
• Network architects and integrators designing vehicle-to-infrastructure (V2I), fleet management, telematics and V2X services over IPv6.
• Test labs and certification bodies assessing IPv6 conformance for CALM-compliant ITS devices.

Typical use cases:

• Vehicles acting as IPv6 mobile routers providing Internet access to onboard subsystems or legacy devices.
• Continuous handover between cellular, satellite and local wireless links while preserving IP sessions.
• Multihoming at the mobile edge to increase resilience and bandwidth aggregation for connected transport services.

Related standards

• ISO 21217 (CALM Architecture)
• ISO 24102 (CALM Management / information sharing)
• ISO 21218 (CALM medium service access points)
• Relevant IETF RFCs: RFC 2460, RFC 4291, RFC 4294, RFC 3963 (NEMO), RFC 4861, RFC 4862, RFC 5648

Keywords: ISO 21210, IPv6, CALM, Intelligent Transport Systems, ITS stations, mobility, NEMO, IETF RFC, IPv6 networking.