SIST EN 300 267-6 V1.2.6:2005

SLOVENSKI STANDARD
SIST EN 300 267-6 V1.2.6:2005
01-april-2005
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Integrated Services Digital Network (ISDN); Telephony 7 kHz, videotelephony,
audiographic conference and videoconference teleservices; Digital Subscriber Signalling
System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT) proforma specification for the
network
Ta slovenski standard je istoveten z: EN 300 267-6 Version 1.2.6
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 267-6 V1.2.6:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 267-6 V1.2.6:2005

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SIST EN 300 267-6 V1.2.6:2005
ETSI EN 300 267-6 V1.2.6 (2000-06)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Telephony 7 kHz, videotelephony, audiographic conference
and videoconference teleservices;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 6: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT)
proforma specification for the network



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SIST EN 300 267-6 V1.2.6:2005
2 ETSI EN 300 267-6 V1.2.6 (2000-06)
Reference
REN/SPS-05112-6
Keywords
Audio, ISDN, DSS1, teleservice, 7 kHz, video,
telephony, ATS, PIXIT, network
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© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 267-6 V1.2.6:2005
3 ETSI EN 300 267-6 V1.2.6 (2000-06)
Contents
Intellectual Property Rights.5
Foreword .5
1 Scope.6
2 References.6
3 Definitions and abbreviations .7
3.1 Definitions.7
3.2 Abbreviations .7
4 Introduction.8
5 Abstract Test Method (ATM) .8
5.1 Description of ATM used.8
5.2 Conventions for test components and PCOs.8
5.3 Description of PCOs.9
5.3.1 D-channel PCOs .10
5.3.2 PSTN PCO.10
5.4 Naming conventions.10
5.4.1 Test cases.10
5.4.2 Variables and parameters.11
6 Untestable test purposes.11
7 ATS conventions.12
7.1 Declarations part .12
7.1.1 Type definitions .12
7.1.1.1 Simple type definitions.12
7.1.1.2 Structured type definitions .12
7.1.1.2.1 TTCN structured type definitions.12
7.1.1.2.2 ASN.1 structured type definitions.12
7.1.1.3 ASP type definitions.12
7.1.1.3.1 TTCN ASP type definitions.12
7.1.1.3.2 ASN.1 ASP type definitions .13
7.1.1.4 PDU type definitions.13
7.1.1.4.1 TTCN PDU type definitions.13
7.1.1.4.2 ASN.1 PDU type definitions .13
7.1.2 Test suite constants .13
7.1.3 Test suite parameters .13
7.1.4 Variables.14
7.1.4.1 Test suite variables.14
7.1.4.2 Test case variables .14
7.1.5 Test suite operation definitions.14
7.2 Constraints part.15
7.2.1 Structured type constraint declaration.15
7.2.2 ASN.1 type constraint declaration .15
7.2.3 ASP type constraint declaration.15
7.2.3.1 ASN.1 ASP type constraint declaration .15
7.2.3.2 TTCN ASP type constraint declaration.15
7.2.4 PDU type constraint declaration .15
7.2.4.1 ASN.1 PDU type constraint declaration.15
7.2.4.2 TTCN PDU type constraint declaration .15
7.2.5 Derived constraint.15
7.2.6 Parameterized constraints .15
7.2.7 Value assignment.16
7.2.7.1 Specific values .16
7.2.7.2 Matching values .16
7.3 Dynamic part .16
ETSI

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SIST EN 300 267-6 V1.2.6:2005
4 ETSI EN 300 267-6 V1.2.6 (2000-06)
7.3.1 Test cases.16
7.3.2 Test steps .16
7.3.2.1 PTC1_IN, PTC1_2B_IN.16
7.3.2.2 PTC1_OUT, PTC1_BCAP_OUT, PTC1_BCAP_HLC_OUT, PTC1_2B_OUT .16
7.3.3 Defaults.17
8 ATS to TP map.17
9 PCTR conformance.17
10 PIXIT conformance.17
11 ATS conformance .18
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.19
A.1 Identification summary .19
A.1.1 Protocol conformance test report.19
A.1.2 IUT identification.19
A.1.3 Testing environment.20
A.1.4 Limits and reservations.20
A.1.5 Comments.20
A.2 IUT conformance status .20
A.3 Static conformance summary.20
A.4 Dynamic conformance summary.21
A.5 Static conformance review report .21
A.6 Test campaign report.21
A.7 Observations.25
Annex B (normative): Partial PIXIT proforma.26
B.1 Identification summary .26
B.2 Abstract test suite summary .26
B.3 Test laboratory .26
B.4 Client (of the test laboratory).27
B.5 System Under Test (SUT).27
B.6 Protocol information .28
B.6.1 Protocol identification .28
B.6.2 Configuration to be tested .28
B.6.3 Actions required to stimulate IUT .29
B.6.4 Test management timers.29
B.6.5 Parameter values.30
Annex C (normative): Abstract Test Suite (ATS).31
C.1 The TTCN Graphical form (TTCN.GR).31
C.2 The TTCN Machine Processable form (TTCN.MP) .31
Annex D (informative): General structure of ATS.32
History.34
ETSI

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SIST EN 300 267-6 V1.2.6:2005
5 ETSI EN 300 267-6 V1.2.6 (2000-06)
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://www.etsi.org/ipr).
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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee Services
Protocols for Advanced Networks (SPAN).
The present document is part 6 of a multi-part EN covering the Digital Subscriber Signalling System No. one (DSS1)
protocol specification for the Integrated Services Digital Network (ISDN) telephony 7 kHz, videotelephony,
audiographic conference and videoconference teleservices, as described below:
Part 1: "Protocol specification";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";
Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for the user";
Part 5: "Test Suite Structure and Test Purposes (TSS&TP) specification for the network";
Part 6: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing
(PIXIT) proforma specification for the network".
National transposition dates
Date of adoption of this EN: 26 May 2000
Date of latest announcement of this EN (doa): 31 August 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2001
Date of withdrawal of any conflicting National Standard (dow): 28 February 2001
ETSI

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SIST EN 300 267-6 V1.2.6:2005
6 ETSI EN 300 267-6 V1.2.6 (2000-06)
1 Scope
The present document specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information
for Testing (PIXIT) proforma for the Network side of the T reference point or coincident S and T reference point (as
defined in ITU-T Recommendation I.411 [13]) of implementations conforming to the stage three standard of the
telephony 7 kHz and videotelephony teleservices for the pan-European Integrated Services Digital Network (ISDN) by
means of the Digital Subscriber Signalling System No. one (DSS1) protocol, EN 300 267-1 [2].
EN 300 267-5 [4] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT
proforma specification. Other parts specify the TSS&TP and the ATS and partial PIXIT proforma for the User side of
the T reference point or coincident S and T reference point of implementations conforming to EN 300 267-1 [2].
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
[1] ETSI EN 300 196-1 (V1.2): "Integrated Services Digital Network (ISDN); Generic functional
protocol for the support of supplementary services; Digital Subscriber Signalling System No. one
(DSS1) protocol; Part 1: Protocol specification".
[2] ETSI EN 300 267-1 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".
[3] ETSI EN 300 267-2 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification".
[4] ETSI EN 300 267-5 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes
(TSS&TP) specification for the network".
[5] ETSI EN 300 403-1 (V1.2): "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call
control; Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
[6] ETSI EN 300 403-3 (V1.2): "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call
control; Part 3: Protocol Implementation Conformance Statement (PICS) proforma specification".
[7] ETSI EN 300 403-7: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control;
Part 7: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for
Testing (PIXIT) proforma specification for the network".
[8] ISO/IEC 9646-1 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 1: General concepts".
ETSI

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SIST EN 300 267-6 V1.2.6:2005
7 ETSI EN 300 267-6 V1.2.6 (2000-06)
[9] ISO/IEC 9646-2 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 2: Abstract Test Suite specification".
[10] ISO/IEC 9646-3 (1998): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 3: The Tree and Tabular Combined Notation (TTCN)".
[11] ISO/IEC 9646-4 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 4: Test realization".
[12] ISO/IEC 9646-5 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 5: Requirements on test laboratories and clients for the
conformance assessment process".
[13] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces; Reference configurations".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in EN 300 267-1 [2] and ISO/IEC 9646
parts 1 [8] to 5 [12] apply.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ASP Abstract Service Primitive
ATM Abstract Test Method
ATS Abstract Test Suite
CM Co-ordination Message
CP Co-ordination Point
ExTS Executable Test Suite
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
MTC Main Test Component
PCO Point of Control and Observation
PCTR Protocol Conformance Test Report
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
PTC Parallel Test Component
SUT System Under Test
TP Test Purpose
TSS Test Suite Structure
TTCN Tree and Tabular Combined Notation
UT Upper Tester
ETSI

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SIST EN 300 267-6 V1.2.6:2005
8 ETSI EN 300 267-6 V1.2.6 (2000-06)
4 Introduction
Implementations Under Test (IUTs) which are to be tested using this ATS are required to have previously been tested
for conformity against and passed the test suite for EN 300 403-1 [5].
Any messages or fields within messages which are introduced by EN 300 403-1 [5] are included in this ATS.
Behaviours in test cases have been described in such a way to be able to take into account EN 300 403-1 [5] basic call
standard. This ATS also takes into account messages defined for the supplementary services, in particular
EN 300 196-1 [1]. When such messages are received, they are ignored by the ATS as this is not within the scope of the
present document.
5 Abstract Test Method (ATM)
5.1 Description of ATM used
This ATS describes the testing specification of the protocol procedures and switching functions needed to support the
videotelephony, audiographic conference, videoconference and telephony 7 kHz teleservices at T or coincident S and T
reference points for the network.
The requirement for testing the network IUT is to focus on the behaviour of the network IUT at the user-network
interface where a T reference point or coincident S and T reference point applies. Thus the IUT is the network DSS1
protocol entity at a particular user-network interface and not the whole network.
It is possible to specify an ATS based on a single party (remote) test method for such an IUT. However, it is considered
that an ATS based on such an approach is of limited use as the only way to specify IUT generated PDUs is to use the
"implicit send" statement. Many users of such an ATS would replace the "implicit send" statements with descriptions of
the behaviour at other interfaces.
An ATS based on a multi-party test method is considered to be more useful in that it is closer to how a real test suite
would be constructed. Such a test method specifies behaviour at multiple network interfaces. One very important
limitation here is that tests are focused on one particular interface. Thus the test system is made up of one Main Test
Component (MTC) and one or more Parallel Test Components (PTC), see figure 1.
5.2 Conventions for test components and PCOs
Figure 1 shows a logical view of the complete configuration of the MTC, PTCs, and PCOs. The Co-ordination Point
(CP) relationships between the various components are also indicated. In a master/slave arrangement, MTC is
considered to be the master while PTC1 and PTCT are the slaves. The "slave" testers are only an explicit description of
how to deal with the "other" interfaces during the testing process, i.e. "how to make the IUT send the required message".
ETSI

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SIST EN 300 267-6 V1.2.6:2005
9 ETSI EN 300 267-6 V1.2.6 (2000-06)
Master part Slave part
MTCA PTCT
CPAT
PTC1
CPA1
L0 PCO L1 PCO T PCO
IUT
NETWORK
Figure 1: Multi-party test method
This means, in particular, that the verdict FAIL will only be assigned from the protocol aspects observed on the interface
under test (i.e. by the "master" tester), as it would be observed by a terminal connected to this interface. A failure in the
correlation between the protocol at the different interfaces to which the different testers are connected, i.e. in the
mechanism of the functional service itself, will not cause a FAIL verdict. For instance, if the IUT fails to send a message
on the tested interface after another interface has received the proper stimulus, the verdict will be INCONCLUSIVE.
The MTC MTCA has two functions in this configuration. Firstly, it has the MTC function of controlling the one or more
PTCs. Thus it is responsible for starting the PTCs and afterwards coordinates activities by exchanging Coordination
Messages (CM) with the PTCs. Secondly it is responsible for the behaviour of the Lower Tester (LT) at PCO L0.
The MTC PCO is named "L0" ("L" for Lower). The L0 PCO is used to control and observe the behaviour of the IUT
and test case verdicts are assigned depending on the behaviour observed at this PCO. The PTCs PTC1 and PTCT use
PCOs L1 and T. These PCOs are used to control and, in a limited way, observe the behaviour of the network equipment
at interfaces other than the one under test. No verdicts are assigned at these PCOs.
As stated in a previous paragraph, the non-receipt of network generated messages at L0, which are stimulated by events
at L1 or T will result in INCONCLUSIVE rather than FA
...