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International
Standard
ISO 15784-2
Second edition
Intelligent transport systems —
2024-06
Data exchange involving roadside
modules communication —
Part 2:
Centre to field device communications
using Simple Network Management
Protocol (SNMP)
Systèmes intelligents de transport (SIT) — Échange de données
impliquant la communication de modules en bordure de route —
Partie 2: Communications par dispositif du centre au terrain en
utilisant le protocole simple de gestion de réseau (SNMP)
Reference number
© ISO 2024
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Published in Switzerland
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Abbreviated terms . 4
5 Conformance and Conventions . 5
5.1 ASN.1 .5
5.2 SNMP Terminology .5
5.3 Format .5
5.4 Conformance .5
6 Architecture. 5
6.1 ITS services . .5
6.2 Physical view .5
6.3 Communications view .6
7 Requirements . 7
7.1 Overview .7
7.2 Terminology and internal architecture .8
7.3 Message Processing and Dispatching.8
7.4 Applications.8
7.4.1 Entity type .8
7.4.2 Command generator .8
7.4.3 Command responder .8
7.4.4 Notification originator .8
7.4.5 Notification receiver .9
7.4.6 Proxy forwarder .9
7.5 Security models .9
7.5.1 User-based security model .9
7.5.2 Transport security model.9
7.6 View-based access control .10
7.7 Protocol operations .10
7.7.1 General .10
7.7.2 Request ID variation .10
7.8 Transport mappings .10
7.8.1 Port numbers .10
7.8.2 UDP over IPv4 .10
7.8.3 UDP over IPv6 .10
7.8.4 TCP over IPv4 .11
7.8.5 TCP over IPv6 .11
7.8.6 Secure transport .11
7.9 Management information base (MIB) .11
7.9.1 Agent MIBs .11
7.9.2 Notification originator MIBs . 12
7.9.3 Proxy forwarder MIBs . 12
7.9.4 Other supported data . 12
7.10 Context engine ID discovery . 12
8 Performance .12
8.1 Overview . 12
8.2 Default response time . 12
Annex A (informative) Primer for SNMP . 14
Annex B (informative) Encoding examples . 17
iii
Bibliography . 19
iv
Foreword
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This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
This second edition cancels and replaces the first edition (ISO 15784-2:2015), which has been technically
revised. It also incorporates the Amendment ISO 15784-2:2015/Amd 1:2020.
The main changes are as follows:
— support for Simple Network Management Protocol (SNMP) versions other than SNMP v
...