ETSI TS 102 985-3 V1.1.1 (2012-07)

Intelligent Transport Systems (ITS); Communications Access for Land Mobiles (CALM); Test specifications for non-IP networking (ISO 29281); Part 3: Abstract Test Suite (ATS) and partial PIXIT proforma

DTS/ITS-0020028-3

General Information

• Status: Published
• Publication Date: 24-Jul-2012
• Technical Committee: ITS WG2 - Architecture and Cross Layer
• Current Stage: 12 - Completion
• Due Date: 31-Jul-2012
• Completion Date: 25-Jul-2012
• Mandate: M/453

Standards Content (Sample)

Technical Specification
Intelligent Transport Systems (ITS);
Communications Access for Land Mobiles (CALM);
Test specifications for non-IP networking (ISO 29281);
Part 3: Abstract Test Suite (ATS) and partial PIXIT proforma

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2 ETSI TS 102 985-3 V1.1.1 (2012-07)

Reference
DTS/ITS-0020028-3
Keywords
ATS, CALM, ITS, network, testing, TTCN
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3 ETSI TS 102 985-3 V1.1.1 (2012-07)
Contents
Intellectual Property Rights . 4
Foreword . 4
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 5
3 Definitions and abbreviations . 6
3.1 Definitions . 6
3.2 Abbreviations . 6
4 Abstract test method . 6
4.1 Abstract protocol tester . 6
4.2 Test configurations . 8
4.2.1 Roles of an ITS-SCU . 8
4.2.2 Test configuration CF01: No ITS station-internal network . 8
4.2.3 Test configuration CF02: ITS station-internal network . 9
4.3 Test architecture . 10
4.4 Ports and abstract service primitives . 11
4.4.1 Overview . 11
4.4.2 ASPs of the fntpPort . 11
4.4.3 ASPs of the utPort . 11
4.4.4 ASPs of the cfPort . 12
5 ATS conventions . 12
Annex A (normative): Partial PIXIT proforma for FNTP . 16
A.1 Identification summary. 16
A.2 ATS summary . 16
A.3 Test laboratory . 16
A.4 Client identification . 17
A.5 SUT . 17
A.6 Protocol layer information. 17
A.6.1 Protocol identification . 17
A.6.2 IUT information . 18
Annex B (normative): TTCN-3 library modules . 21
B.1 Electronic annex, zip file with TTCN-3 code . 21
History . 22

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4 ETSI TS 102 985-3 V1.1.1 (2012-07)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Intelligent Transport System (ITS).
The present document is part 3 of a multi-part deliverable covering Communications Access for Land
Mobiles (CALM); Test specifications for non-IP networking (ISO 29281), as identified below:
Part 1: "Protocol Implementation Conformance Statement (PICS) proforma";
Part 2: "Test Suite Structure and Test Purposes (TSS&TP)";
Part 3: "Abstract Test Suite (ATS) and partial PIXIT proforma".
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1 Scope
The present document provides the Abstract Test Suite (ATS) and partial PIXIT proforma for the protocols specified in
ISO 29281-1 [1] based on the related TSS&TP specification [3] and the PICS proforma [2], and in accordance with the
relevant guidance given in ISO/IEC 9646-1 [4], ISO/IEC 9646-2 [5], ETS 300 406 [6] and EG 202 798 [i.1].
2 References
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ISO/DIS 29281-1: "Intelligent transport systems -- Communication access for land
mobiles (CALM) -- Non-IP networking -- Part 1: Fast networking & transport layer
protocol (FNTP)".
[2] ETSI TS 102 985-1: "Intelligent Transport Systems (ITS); Communications Access for Land
Mobiles (CALM); Test specifications for non-IP networking (ISO 29281); Part 1: Protocol
implementation conformance statement (PICS) proforma".
[3] ETSI TS 102 985-2: "Intelligent Transport Systems (ITS); Communications Access for Land
Mobiles (CALM); Test specifications for non-IP networking (ISO 29281); Part 2: Test Suite
Structure and Test Purposes (TSS&TP)".
[4] ISO/IEC 9646-1 (1995): "Information technology -- Open Systems
Interconnection -- Conformance testing methodology and framework -- Part 1: General concepts".
[5] ISO/IEC 9646-2 (1995): "Information technology -- Open Systems
Interconnection -- Conformance testing methodology and framework -- Part 2: Abstract Test Suite
specification".
[6] ETSI ETS 300 406 (1995): "Methods for testing and Specification (MTS); Protocol and profile
conformance testing specifications; Standardization methodology".
[7] ETSI ES 201 873-1: "Methods for Testing and Specification (MTS); The Testing and Test Control
Notation version 3; Part 1: TTCN-3 Core Language".
[8] ETSI ES 201 873-7: "Methods for Testing and Specification (MTS); The Testing and Test Control
Notation version 3; Part 7: Using ASN.1 with TTCN-3".
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI EG 202 798: "Intelligent Transport Systems (ITS); Testing; Framework for conformance and
interoperability testing".
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[i.2] ISO 21217: "Intelligent transport systems -- Communications access for land
mobiles (CALM) -- Architecture".
[i.3] ISO/DIS 24102-3: "Intelligent transport systems -- Communications access for land
mobiles (CALM) -- ITS station management -- Part 3: Service access points".
[i.4] ISO/DIS 24102-4: "Intelligent transport systems -- Communications access for land
mobiles (CALM) -- ITS station management -- Part 4: Station internal management
communications".
[i.5] ISO/DIS 21218: "Intelligent transport systems -- Communications access for land
mobiles (CALM) -- Access technology support".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in [1], [2], [3], [4], [5], [6], [7], [8], [i.1], [i.2],
[i.3], [i.4] and [i.5] apply.
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in [1], [2], [3], [4], [5], [6], [7], [8], [i.1], [i.2], [i.3],
[i.4] and [i.5] apply.
4 Abstract test method
This clause describes the "Abstract Test Method" (ATM) used to test the "Fast Networking & Transport Layer
Protocol" (FNTP) [1].
4.1 Abstract protocol tester
In general, the conformance test system architecture as illustrated in the ITS testing framework [i.1], see figure 1,
applies. For the present document, the IUT is the FNTP. The upper tester application allows accessing the NF-SAP of
the IUT. Lower layer protocols indicated by the block "ITS lower layers" allow access to the IUT from the lower side.
NOTE 1: There is also the need and possibility to configure the IUT by the ITS test system. This feature is not
illustrated in figure 1, but is presented in figure 5.
The test system simulates valid and invalid protocol behaviour, and analyses the reaction of the IUT.
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Figure 1: Abstract protocol tester - General approach
SUTs which support the "ITS station-internal management communications protocol" (IICP) [i.4] may benefit from the
conformance test system architecture illustrated in figure 2, where the access to the IUT from top, i.e. in general via the
upper tester application, is performed via the MN-SAP applying the MN-Command "UpTest_NF_Cmd" [i.3]. Similarly,
access of the networking & transport layer protocol to the ITS facilities layer (Upper tester application) is possible via
MN-SAP applying the MN-Request "UpTest_NF_Req" [i.3].
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Figure 2: Abstract protocol tester - IICP approach
NOTE 2: In CALM-compliant implementations, in addition to the upper tester access, configuration of the IUT by
the ITS test system is also done via the ITS station-internal network. This feature is illustrated in figure 5.
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4.2 Test configurations
4.2.1 Roles of an ITS-SCU
This test suite uses two test configurations in order to cover the different test scenarios. Distinction between the two
configurations is given by the two possible implementation scenarios for an ITS station, i.e. a single-unit
implementation, or an implementation with several "ITS station communication units" (ITS-SCU) which are
interconnected via an ITS station-internal network [1] and [i.2]. These ITS-SCUs can take over the roles of an
ITS-S host, or an ITS-S router, or the combined role of ITS-S host and ITS-S router. These two identified testing
configurations are referred to as CF01, for the single unit implementation, and CF02 for the multi-unit implementation,
and are described in the following clauses.
4.2.2 Test configuration CF01: No ITS station-internal network
In test configuration CF01, the roles of ITS-S host and ITS-S router are implemented in a single ITS-SCU.
Consequently the whole supported functionality of FNTP is given in a single ITS-SCU, and no station-internal
forwarding between ITS-S host and ITS-S router is needed.

Figure 3: Test configuration CF01 architecture
In this test configuration, the FNTP is connected only to communication interfaces (CI) which establish a link to
another instance of an ITS station. Such CIs provide "virtual communication interfaces" (VCIs) for MAC broadcast
communications, multicast communications and unicast communications. Details on VCIs, and how the ITS-S access
layer is connected to the ITS-S networking & transport layer via the IN-SAP are specified in [i.5]. The following
address elements contained in the element LinkID specified in [i.5] are used:
• LocalCIID, identifying uniquely a CI, specified in the following PIXIT variable:
PX_WL_LOCAL_CIID.
• RemoteCIID, identifying VCI for broadcast communications in destination_address.RemoteCIID of the
IN-UNITDATA.request service primitive, specified in the following PIXIT variable:
PX_WL_REMOTE_CIID_BC
• RemoteCIID, identifying VCI for multicast communications in destination_address.RemoteCIID of the
IN-UNITDATA.request service primitive, specified in the following PIXIT variable:
PX_WL_REMOTE_CIID_MC
• RemoteCIID, identifying a VCI for unicast communications in destination_address.RemoteCIID of the
IN-UNITDATA.request service primitive / source_address.RemoteCIID of the IN-UNITDATA.indication
service primitive, specified in the following PIXIT variable:
PX_WL_REMOTE_CIID_UC.
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Note that for every know peer ITS station, a distinct VCI identified by destination_address.RemoteCIID of the
IN-UNITDATA.request service primitive / source_address.RemoteCIID of the IN-UNITDATA.indication service
primitive is given.
This configuration is used in the cases listed below [3]:
• ITS-S station internal-network PICS (PICS_S_INW) is set to false.
• The roles PICS (PICS_ROLE_RH) is set to true.
4.2.3 Test configuration CF02: ITS station-internal network
In test configuration CF02, the roles of ITS-S host and ITS-S router may be implemented in different ITS-SCUs. It is
considered for testing that the functionality of FNTP is separated into two parts, one part available in an ITS-SCU with
the role of an ITS-S host, and one part available in an ITS-SCU with the role of an ITS-S host. Further on, presence of
an ITS station-internal network is required.
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Figure 4: Test configuration CF02 architecture
In this test configuration, the FNTP part located in the ITS-SCU with role of an ITS-S router is connected to
communication interfaces (CI) which establish a link to another instance of an ITS station, and to a communication
interface which establishes the connection to the ITS station internal network. The following address elements
contained in the element LinkID specified in [i.5] are used:
• To connect to the ITS station-internal network with IN-UNITDATA.request service primitive:
- LocalCIID, identifying uniquely a CI to connect to another ITS station, specified in the following PIXIT
variable:
PX_LAN_LOCAL_CIID
- RemoteCIID, identifying VCI for broadcast communications in destination_address.RemoteCIID of the
IN-UNITDATA.request service primitive, specified in the following PIXIT variable:
PX_LAN_REMOTE_CIID_BC
- RemoteCIID, identifying VCI for unicast communications in source_address.RemoteCIID of the
IN-UNITDATA.indication service primitive, specified in the following PIXIT variable:
PX_LAN_REMOTE_CIID_UC
Note that communications on the ITS station-internal network could also be unicast communications.
• To connect to another ITS station, see test configuration CF01.
Note that for every known peer ITS station, a distinct VCI is given.
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This configuration is used in the cases listed below [2]:
• ITS-S station internal-network PICS (PICS_S_INW) is set to true.
• Either one of the roles PICS (PICS_ROLE_RH, PICS_ROLE_RONLY, PICS_ROLE_HONLY) is set to true.
4.3 Test architecture
This ITS FNTP test specification implements the general TTCN-3 test architecture described in EG 202 798 [i.1],
clauses 6.3.2 and 8.3.1.
Figure 5 shows the TTCN-3 test architecture used for the FNTP ATS.
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