ETSI EN 301 815-6 V1.1.1 (2002-10)

Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Quality of Service class and parameters indication at call/connection establishment; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

DEN/SPAN-130251-6

Širokopasovno digitalno omrežje z integriranimi storitvami (B-ISDN) – Protokol digitalne naročniške signalizacije št. 2 (DSS2) – Razred kakovosti storitve in indikacija parametrov pri vzpostavljanju klica/zveze – 6. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za omrežje

General Information

• Status: Published
• Publication Date: 14-Oct-2002
• Technical Committee: SPAN 13 - SPAN Peer-to-Peer Control Protocol (PTPCP)
• Current Stage: 12 - Completion
• Due Date: 18-Oct-2002
• Completion Date: 15-Oct-2002
• Ref Project: SIST EN 301 815-6 V1.1.1:2005 - Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Quality of Service class and parameters indication at call/connection establishment; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 301 815-6 V1.1.1:2005
01-januar-2005
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LQGLNDFLMDSDUDPHWURYSULY]SRVWDYOMDQMXNOLFD]YH]H±GHO$EVWUDNWQL
SUHVNXãDOQLQL]$76LQGHOQDGRGDWQDLQIRUPDFLMD]DSUHVNXãDQMHL]YHGEH
SURWRNROD3,;,7±3URIRUPDVSHFLILNDFLMD]DRPUHåMH
Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling
System No. two (DSS2) protocol; Quality of Service class and parameters indication at
call/connection establishment; 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 301 815-6 Version 1.1.1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 301 815-6 V1.1.1:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 815-6 V1.1.1:2005

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SIST EN 301 815-6 V1.1.1:2005

ETSI EN 301 815-6 V1.1.1 (2002-10)
European Standard (Telecommunications series)

Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol;
Quality of Service class and parameters indication
at call/connection establishment;
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 301 815-6 V1.1.1:2005
 2 ETSI EN 301 815-6 V1.1.1 (2002-10)



Reference
DEN/SPAN-130251-6
Keywords
ATS, B-ISDN, DSS2, network, PIXIT, quality
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SIST EN 301 815-6 V1.1.1:2005
 3 ETSI EN 301 815-6 V1.1.1 (2002-10)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
3 Definitions and abbreviations.7
3.1 Definitions.7
3.1.1 Definitions related to conformance testing .7
3.1.2 Definitions related to EN 301 815-1.7
3.2 Abbreviations.8
4 Abstract Test Method (ATM).8
4.1 Description of ATM used.8
4.2 Conventions for test components and PCOs .9
5 Untestable test purposes.10
6 ATS to TP map.10
7 PCTR conformance.10
8 PIXIT conformance.11
9 ATS conformance.11
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.12
A.1 Identification summary.12
A.1.1 Protocol conformance test report.12
A.1.2 IUT identification.12
A.1.3 Testing environment.12
A.1.4 Limits and reservations .13
A.1.5 Comments.13
A.2 IUT Conformance status .13
A.3 Static conformance summary.13
A.4 Dynamic conformance summary.13
A.5 Static conformance review report.14
A.6 Test campaign report.14
A.7 Observations.15
Annex B (normative): Partial PIXIT proforma .16
B.1 Identification summary.16
B.2 Abstract test suite summary .16
B.3 Test laboratory.16
B.4 Client (of the Test Laboratory).17
B.5 SUT.17
B.6 Protocol information.18
B.6.1 Protocol identification.18
B.6.2 Configuration to be tested .18
B.6.3 Test management timers.18
B.6.4 Parameter Values.19
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 4 ETSI EN 301 815-6 V1.1.1 (2002-10)
Annex C (normative): Abstract Test Suite (ATS) .20
C.1 The TTCN Graphical form (TTCN.GR) .20
C.2 The TTCN Machine Processable form (TTCN.MP).20
Annex D (informative): Bibliography.21
History .22

ETSI

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SIST EN 301 815-6 V1.1.1:2005
 5 ETSI EN 301 815-6 V1.1.1 (2002-10)
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://webapp.etsi.org/IPR/home.asp).
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 and
Protocols for Advanced Networks (SPAN).
The present document is part 6 of a multi-part deliverable covering the Digital Subscriber Signalling System No. two
(DSS2) protocol specification for the Broadband Integrated Services Digital Network (B-ISDN) to support Quality of
Service class and parameters indication at call/connection establishment, as identified below:
Part 1: "Protocol specification [ITU-T Recommendations Q.2965.1 (1999) and Q.2965.2 (1999), modified]";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification [ITU-T
Recommendations Q.2965.1B (2000) and Q.2965.2B (2000), modified]";
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: 11 October 2002
Date of latest announcement of this EN (doa): 31 January 2003
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 July 2003
Date of withdrawal of any conflicting National Standard (dow): 31 July 2003

ETSI

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SIST EN 301 815-6 V1.1.1:2005
 6 ETSI EN 301 815-6 V1.1.1 (2002-10)
1 Scope
The present document specifies the network Abstract Test Suite (ATS) for the T reference point or coincident S and
B
T reference point (as defined in ITU-T Recommendation I.413 [6]) of implementations conforming to the standards
B
for the Broadband Integrated Services Digital Network (B-ISDN) Digital Subscriber Signalling System No. two (DSS2)
protocol specification for support of Quality of Service Class and parameters indication at call/connection establishment
defined in EN 301 815-1 [1].
A further part of the present document specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this
ATS and partial PIXIT proforma. 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
B B B
EN 301 815-1 [1].
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 and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
[1] ETSI EN 301 815-1: "Broadband Integrated Services Digital Network (B-ISDN); Digital
Subscriber Signalling System No. two (DSS2) protocol; Quality of Service Class and parameters
indication at call/connection establishment; Part 1: Protocol specification [ITU-T
Recommendations Q.2965.1 (1999) and Q.2965.2 (1999), modified]".
[2] ETSI EN 301 815-2: "Broadband Integrated Services Digital Network (B-ISDN); Digital
Subscriber Signalling System No. two (DSS2) protocol; Quality of Service class and parameters
indication at call/connection establishment; Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification [ITU-T Recommendations Q.2965.1B (2000) and
Q.2965.2B (2000), modified]".
[3] ISO/IEC 9646-1: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 1: General concepts".
[4] ISO/IEC 9646-2: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 2: Abstract Test Suite specification".
[5] ISO/IEC 9646-3: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 3: The Tree and Tabular Combined Notation (TTCN)".
[6] ITU-T Recommendation I.413 (1993): "B-ISDN user-network interface".
[7] ETSI EN 300 443-1: "Broadband Integrated Services Digital Network (B-ISDN); Digital
Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-network interface layer 3
specification for basic call/bearer control; Part 1: Protocol specification [ITU-T Recommendation
Q.2931 (1995), modified]".
[8] ISO/IEC 9646-4: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 4: Test realization".
[9] ISO/IEC 9646-5: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 5: Requirements on test laboratories and clients for the
conformance assessment process".
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 7 ETSI EN 301 815-6 V1.1.1 (2002-10)
[10] ETSI EN 300 443-2: "Broadband Integrated Services Digital Network (B-ISDN); Digital
Subscriber Signalling System No. two (DSS2) protocol; B-ISDN user-network interface layer 3
specification for basic call/bearer control; Parts 2: Protocol Implementation Conformance
Statement (PICS) proforma specification".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in EN 301 815-1 [1], EN 300 443-1 [7] and
the following apply.
3.1.1 Definitions related to conformance testing
Abstract test case: Refer to ISO/IEC 9646-1 [3].
Abstract Test Method (ATM): Refer to ISO/IEC 9646-1 [3].
Abstract Test Suite (ATS): Refer to ISO/IEC 9646-1 [3].
Implementation Under Test (IUT): Refer to ISO/IEC 9646-1 [3].
System Under Test (SUT): Refer to ISO/IEC 9646-1 [3].
Upper Tester (UT): Refer to ISO/IEC 9646-1 [3].
Lower Tester (LT): Refer to ISO/IEC 9646-1 [3].
Protocol Implementation Conformance Statement (PICS): Refer to ISO/IEC 9646-1 [3].
PICS proforma: Refer to ISO/IEC 9646-1 [3].
Protocol Implementation eXtra Information for Testing (PIXIT): Refer to ISO/IEC 9646-1 [3].
PIXIT proforma: Refer to ISO/IEC 9646-1 [3].
Test Purpose (TP): Refer to ISO/IEC 9646-1 [3].
Point of Control and Observation (PCO): See ISO/IEC 9646-1 [3].
3.1.2 Definitions related to EN 301 815-1
network: DSS2 protocol entity at the Network side of the user-network interface where a T reference point or
B
coincident S and T reference point applies
B B
network (S /T ): DSS2 protocol entity at the Network side of the user-network interface where a coincident S and T
B B B B
reference point applies
network (T ): DSS2 protocol entity at the Network side of the user-network interface where a T reference point
B B
applies (user is the private ISDN)
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 8 ETSI EN 301 815-6 V1.1.1 (2002-10)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATM Abstract Test Method
ATS Abstract Test Suite
B-ISDN Broadband Integrated Services Digital Network
DSS2 Digital Subscriber Signalling System No. two
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
PCO Point of Control and Observation
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
SUT System Under Test
TP Test Purpose
TSS Test Suite Structure
TTCN Tree and Tabular Combined Notation
UT Upper Tester
VCI Virtual Channel Identifier
VPCI Virtual Path Connection Identifier
4 Abstract Test Method (ATM)
4.1 Description of ATM used
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
B B B
DSS2 protocol entity at a particular user-network interface and is 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 focussed on one particular interface. Thus the test system is made up one Main Test
Component (MTC) and one or more Parallel Test Components (PTC), see figure 1.
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SIST EN 301 815-6 V1.1.1:2005
 9 ETSI EN 301 815-6 V1.1.1 (2002-10)
4.2 Conventions for test components and PCOs

Master part  Slave part

MTCA PTC1

A1 (CP)




 L0 (PCO)   L1 (PCO)
IUT
NETWORK


Figure 1: Multi-party test method
In a master/slave arrangement, the MTC is considered to be the master while the PTCs are the slaves. The "slave"
testers are only an explicit description of how to deal with the remote interfaces during the testing process, i.e. "how to
make the IUT send the required message".
This means, in particular, that the verdict 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 co-ordinates activities by exchanging
Co-ordination Messages (CM) with the PTCs. Secondly it is responsible for the behaviour of the Lower Tester (LT) at
PCO L0.
A combination of the remote and multi-party test methods is applied. As can be seen from figure 1, several PCOs are
used. All PCOs reside at the service access points between layers 2 and 3.
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 10 ETSI EN 301 815-6 V1.1.1 (2002-10)
SUT
MTC  PTC1
Layer 3  IUT   Layer 3

 L0      L1  
Layer 2    Layer 2
 
        

Layer 1   Layer 1
Service Provider


Figure 2: Combination of the remote and multi-party test methods
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, PTC2, etc. use
PCOs L1, L2, etc. 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 the L1, L2, etc., will result in INCONCLUSIVE rather than FAIL verdicts being assigned.
PTC2 is only activated in that test cases that test the procedures at the access between a root user and the IUT, when
more than one party is involved in the call between the root user and the IUT. In test cases which verify that the IUT
rejects invalid or unacceptable SETUP messages, no PTC is activated at all, as these rejection procedures are considered
local to the access between IUT and MTC.
5 Untestable test purposes
There are no untestable test purposes associated with this ATS.
6 ATS to TP map
The identifiers used for the TPs are reused as test case names. Thus there is a straightforward one-to-one mapping.
7 PCTR conformance
A test laboratory, when requested by a client to produce a PCTR, is required, as specified in ISO/IEC 9646-5 [9], to
produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 [9].
Furthermore, a test laboratory, offering testing for the ATS specification contained in annex C, when requested by a
client to produce a PCTR, is required to produce a PCTR conformant with the PCTR proforma contained in annex A of
the present document.
A PCTR which conforms to this PCTR proforma specification shall preserve the content and ordering of the clauses
contained in annex A. Clause A.6 of the PCTR may contain additional columns. If included, these shall be placed to the
right of the existing columns. Text in italics may be retained by the test laboratory.
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 11 ETSI EN 301 815-6 V1.1.1 (2002-10)
8 PIXIT conformance
A test realizer, producing an executable test suite for the Abstract Test Suite (ATS) specification contained in annex C,
is required, as specified in ISO/IEC 9646-4 [8], to produce an augmented partial PIXIT proforma conformant with this
partial PIXIT proforma specification.
An augmented partial PIXIT proforma which conforms to this partial PIXIT proforma specification shall, as a
minimum, have contents which are technically equivalent to annex B. The augmented partial PIXIT proforma may
contain additional questions that need to be answered in order to prepare the Means Of Testing (MOT) for a particular
Implementation Under Test (IUT).
A test laboratory, offering testing for the ATS specification contained in annex C, is required, as specified in
ISO/IEC 9646-5 [9], to further augment the augmented partial PIXIT proforma to produce a PIXIT proforma
conformant with this partial PIXIT proforma specification.
A PIXIT proforma which conforms to this partial PIXIT proforma specification shall, as a minimum, have contents
which are technically equivalent to annex B. The PIXIT proforma may contain additional questions that need to be
answered in order to prepare the test laboratory for a particular IUT.
9 ATS conformance
The test realizer, producing a Means Of Testing (MOT) and Executable Test Suite (ExTS) for this Abstract Test Suite
(ATS) specification, shall comply with the requirements of ISO/IEC 9646-4 [8]. In particular, these concern the
realization of an Executable Test Suite (ExTS) based on each ATS. The test realizer shall provide a statement of
conformance of the MOT to this ATS specification.
An ExTS which conforms to this ATS specification shall contain test groups and test cases which are technically
equivalent to those contained in the ATS in annex C. All sequences of test events comprising an abstract test case shall
be capable of being realized in the executable test case. Any further checking which the test system might be capable of
performing is outside the scope of this ATS specification and shall not contribute to the verdict assignment for each test
case.
Test laboratories running conformance test services using this ATS shall comply with ISO/IEC 9646-5 [9].
A test laboratory which claims to conform to this ATS specification shall use an MOT which conforms to this ATS.
ETSI

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SIST EN 301 815-6 V1.1.1:2005
 12 ETSI EN 301 815-6 V1.1.1 (2002-10)
Annex A (normative):
Protocol Conformance Test Report (PCTR) proforma
Notwithstanding the provisions of the copyright clause related to the text of the present document, ETSI grants that
users of the present document may freely reproduce the PCTR proforma in this annex so that it can be used for its
intended purposes and may further publish the completed PCTR.
A.1 Identification summary
A.1.1 Protocol conformance test report
PCTR number:
PCTR Date:
Corresponding SCTR number:
Corresponding SCTR date:
Test Laboratory identification:

Test Laboratory Manager:
Signature:


A.1.2 IUT identification
Name:

Version:

Protocol specification: EN 301 815-1
PICS:
Previous PCTRs (if any)

A.1.3 Testing environment
PIXIT Reference number:
ATS Specification: EN 301 815-6
Abstract Test Method: Multi-party test method (see ISO/IEC 9646-2)
Means of Testing identification:

Dates of testing:

Conformance Log reference(s):

Retention Date for Log reference(s):


ETSI

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SIST EN 301 815-6 V1.1.1:2005
 13 ETSI EN 301 815-6 V1.1.1 (2002-10)
A.1.4 Limits and reservations
Additional information relevant to the technical contents or further use of the test report, or to the rights and
obligations of the test laboratory and the client, may be given here. Such information may include restriction on the
publication of the report.
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