ISO 17215-4:2014

INTERNATIONAL ISO
STANDARD 17215-4
First edition
2014-04-15
Road vehicles — Video communication
interface for cameras (VCIC) —
Part 4:
Implementation of communication
requirements
Véhicules routiers — Interface de communication vidéo pour caméras
(ICVC) —
Partie 4: Mise en oeuvre d’exigences de communication
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols, and abbreviated terms . 3
3.1 Terms and definitions . 3
3.2 Abbreviated terms . 3
4 Conventions . 4
5 Overview . 4
5.1 General . 4
5.2 Document overview and structure . 4
5.3 Open Systems Interconnection (OSI) model . 5
5.4 Document reference according to OSI model . 5
6 Physical layer. 6
7 Data link layer . 7
7.1 General . 7
7.2 Configuration . 7
8 Network layer . 7
8.1 General . 7
8.2 Audio Video Transport Protocol (AVTP) . 7
8.3 IPv6 . 8
8.4 IPv4 .10
8.5 Address allocation process .11
9 Transport layer .11
9.1 General .11
9.2 User Datagram Protocol (UDP) .12
9.3 Transmission Control Protocol (TCP) .12
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
ISO 17215 consists of the following parts, under the general title Road Vehicles — Video communication
interface for cameras (VCIC):
— Part 1: General information and use case definition
— Part 2: Service discovery and control
— Part 3: Camera message dictionary
— Part 4: Implementation of communication requirements
iv © ISO 2014 – All rights reserved

Introduction
Driver assistance systems are more and more common in road vehicles. From the beginning, cameras
were part of this trend. Analogue cameras were used in the beginning, because of lower complexity of
the first systems. With increasing demand for more advanced functionality, digital image processing has
been introduced. So-called one box design cameras (combining a digital image sensor and a processing
unit) appeared in the vehicles.
Currently, the market demands such systems with multiple functions. Even different viewing directions
are in use. It seems to be common sense that 6 up to 12 cameras in a single vehicle will be seen in the
next future. Out of this and the limitation in size, power consumption, etc. it will lead to designs where
the cameras are separated from the processing unit. Therefore, a high performance digital interface
between camera and processing unit is necessary.
This International Standard has been established in order to define the use cases, the communication
protocol, and the physical layer requirements of a video communication interface for cameras, which
covers the needs of driver assistance applications.
The video communication interface for cameras
— incorporates the needs of the whole life cycle of an automotive grade digital camera,
— utilizes existing standards to define a long-term stable state-of-art video communication interface
for cameras usable for operating and diagnosis purpose,
— can be easily adapted to new physical data link layers including wired and wireless connections by
using existing adaption layers, and
— is compatible with AUTOSAR.
This part of ISO 17215 is related to the general information and use case definition. This is a general
overview International Standard which is not related to the OSI model.
To achieve this, it is based on the Open Systems Interconnection (OSI) basic reference model specified in
ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into seven layers. When
mapped on this model, the protocol, and physical layer requirements specified by this International
Standard, in accordance with Table 1 are broken into:
— application (layer 7), specified in ISO 17215-3;
— presentation layer (layer 6), specified in ISO 17215-2;
— session layer (layer 5), specified in ISO 17215-2;
— transport protocol (layer 4), specified in ISO 17215-4, ISO 13400-2;
— network layer (layer 3), specified in ISO 17215-4, ISO 13400-2;
— data link layer (layer 2), specified in ISO 17215-4, ISO 13400-3;
— physical layer (layer 1), specified in ISO 17215-4, ISO 13400-3.
Table 1 — Specifications applicable to the OSI layers
Video communication interface for
Applicability OSI 7 layers Camera diagnostics
cameras
Application (layer 7) ISO 17215-3
Presentation (layer 6) ISO 17215-2
Seven layers
Session (layer 5) ISO 17215-2
according to
ISO 7498-1 Transport (layer 4) ISO 17215-4 ISO 13400-2
and
Network (layer 3)
Other future interface
ISO/IEC 10731
standards
Data link (layer 2) ISO 17215-4 ISO 13400-3
Physical (layer 1)
ISO 17215-1 has been established in order to define the use cases for vehicle communication systems
implemented on a video communication interface for cameras; it is an overall International Standard not
related to the OSI model.
ISO 17215-3 covers the application layer implementation of the video communication interface for
cameras; it includes the API.
ISO 17215-2 covers the session and presentation layer implementation of the video communication
interface for cameras.
ISO 17215-4 is the common International Standard for the OSI layers 1 to 4 for the video communication
interface for cameras. It complements ISO 13400-2 and ISO 13400-3 and adds the requirement for video
transmission over Ethernet.
ISO 17215-2 and ISO 17215-3 (OSI layer 5 to 7) services have been defined to be independent of the
ISO 17215-4 (OSI layer 1 to 4) implementation. Therefore, ISO 17215-4 could be replaced by other future
communication standards.
vi © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 17215-4:2014(E)
Road vehicles — Video communication interface for
cameras (VCIC) —
Part 4:
Implementation of communication requirements
1 Scope
This part of ISO 17215 specifies the communication requirements for video camera interfaces. It
is concerned mainly with layers 1 through 4 of the ISO/OSI basic reference model. These layers are
the physical layer, the link layer, the network layer, and the transport layer. Figure 1 presents the
communication protocols specified in this part of ISO 17215 in relation to the ISO/OSI layers as well as
the content of the other parts of ISO 17215.
Figure 1 — Overview of ISO 17215
The general terminology defined in ISO 17215-1 is also used in this part of ISO 17215.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO°7498-1, Information processing systems — Open systems interconnection — Basic reference model
ISO/IEC 10731, Information technology — Open Systems Interconnection — Basic Reference Model —
Conventions for the definition of OSI services
ISO 17215 (all parts), Road vehicles —Video communication interface for cameras (VCIC)
IEEE 802.3-2012, Standard for Ethernet
IEEE 802.1Q, IEEE Standard for Local and Metropolitan Area Networks — Media Access Control (MAC)
Bridges and Virtual Bridged Local Area Networks
IEEE 802.1AS, Timing and Synchronization for Time-Sensitive Applications in Bridged Local Area Networks
IEEE 1722, Layer 2 Transport Protocol for Time-Sensitive Applications in a Bridged Local Area NetworkIETF
RFC 826, Ethernet Address Resolution Protocol: Or Converting Network Protocol Addresses to 48.bit
Ethernet Address for Transmission on Ethernet Hardware
IETF RFC 768, User Datagram Protocol
IETF RFC 791, Internet Protocol
IETF RFC 792, Internet Control Message Protocol
IETF RFC 793, Transmission Control Protocol
IETF RFC 896, Congestion Control in IP/TCP Internetworks
IETF RFC 1122, Requirements for Internet Hosts — Communication Layers
IETF RFC 1323, TCP Extensions for High Performance
IETF RFC 1624, Computation of the Internet Checksum via Incremental Update
IETF RFC 1878, Variable Length Subnet Table For IPv4
IETF RFC 1981, Path MTU Discovery for IP version 6
IETF RFC 2018, TCP Selective Acknowledgment Options
IETF RFC 2131, Dynamic Host Configuration Protocol
IETF RFC 2132, DHCP Options and BOOTP Vendor Extensions
IETF RFC 2460, Internet Protocol, Version 6 (IPv6) Specification
IETF RFC 2464, Transmission of IPv6 Packets over Ethernet Networks
IETF RFC 2988, Computing TCP’s Retransmission Timer
IETF RFC 3122, Extensions to IPv6 Neighbor Discovery for Inverse Discovery Specification
IETF RFC 3203, DHCP reconfigure extension
IETF RFC 3315, Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
IETF RFC 3390, Increasing TCP’s Initial Window
IETF RFC 3484, Default Address Selection for Internet Protocol version 6 (IPv6)
IETF RFC 3782, The NewReno Modification to TCP’s Fast Recovery Algorithm
IETF RFC 4286, Multicast routing discovery
IETF RFC 4291, IP Version 6 Addressing Architecture
IETF RFC 4294, IPv6 Node Requirements
IETF RFC 4443, Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6)
Specification
2 © ISO 2014 – All rights reserved

IETF RFC 4861, Neighbor Discovery for IP version 6 (IPv6)
IETF RFC 4862, IPv6 Stateless Address Autoconfiguration
IETF RFC 4884, Extended ICMP to Support Multi-Part Messages
IETF RFC 5095, Deprecation of Type 0 Routing Headers in IPv6
IETF RFC 5220, Problem Statement for Default Address Selection in Multi-Prefix Environments: Operational
Issues of RFC 3484 Default Rules
IETF RFC 5405, Unicast UDP Usage Guidelines for Application Designers
IETF RFC 5482, TCP User Timeout Option
IETF RFC 5681, TCP Congestion Control
IETF RFC 5722, Handling of Overlapping IPv6 Fragments
IETF RFC 5871, IANA Allocation Guidelines for the IPv6 Routing Header
IETF RFC 1042, Standard for the transmission of IP datagrams over IEEE 802 networks
NOTE The keywords shall, should, etc. as defined in IETF RFC 2119 are used in this part of ISO 17215 to
indicate requirement levels. Capitalization of those keywords is not required.
If an RFC referenced by this part of ISO 17215 has been updated by one or several RFCs, the update is fully applicable
for the purpose of implementing this part of ISO 17215. This presumes the additional document describes an
implementation which is compatible with implementation described by document referred to herein.
If one or more errata for an RFC referenced by this part of ISO 17215 have been published, all of these errata
documents are fully applicable for the purpose of implementing this part of ISO 17215.
It is assumed that future implementations of this part of ISO 17215 will use the most recent versions of the
referenced RFCs but maintain backward compatibility to existing implementations.
3 Terms, definitions, symbols, and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 17215-1 apply.
3.2 Abbreviated terms
Term Description
API Application Programming Interface
ARP Address Resolution Protocol
AVB Audio Video Broadcast
AVTP Audio Video Transport Protocol
DHCP Dynamic Host Configuration Protocol
DoIP Diagnosis over IP
EMC Electromagnetic Compatibility
gPTP Generalized Precision Time Protocol
ICMP Internet Control Message Protocol
LLC Logical Link Control
MAC Media Access Control
MII Media Independent Interface
NDP Neighbour Discovery Protocol
OSI Open Systems Interconnection
PDU Protocol Data Unit
PHY Physical Layer
POE Power over Ethernet
TCP Transmission Control Protocol
TFTP Trivial File Transfer Protocol
UDP User Datagram Protocol
VLAN Virtual Local Area Network
4 Conventions
This International Standard is based on the conventions specified in the OSI service conventions
(ISO/IEC°10731) as they apply for physical layer, protocol, network and transport protocol, and
diagnostic services.
5 Overview
5.1 General
This International Standard has
...