ETSI ETS 300 403-5 ed.1 (1997-09)

Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 5: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user

DE/SPS-05092

Digitalno omrežje z integriranimi storitvami (ISDN) - Protokol digitalne naročniške signalizacije št. 1 (DSS1) - Signalizacijska omrežna plast za krmiljenje vodovnega osnovnega klica - 5. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) - Proforma specifikacije za uporabnika

General Information

• Status: Published
• Publication Date: 28-Sep-1997
• Technical Committee: SPS 5 3 - Conformance Testing
• Current Stage: 12 - Completion
• Due Date: 26-Sep-1997
• Completion Date: 29-Sep-1997
• Mandate: T-234A
• Ref Project: SIST ETS 300 403-5:1999 - Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 5: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 403-5:1999
01-januar-1999
'LJLWDOQRRPUHåMH]LQWHJULUDQLPLVWRULWYDPL,6'13URWRNROGLJLWDOQHQDURþQLãNH
VLJQDOL]DFLMHãW'666LJQDOL]DFLMVNDRPUHåQDSODVW]DNUPLOMHQMHYRGRYQHJD
RVQRYQHJDNOLFDGHO$EVWUDNWQLSUHVNXãDOQLQL]$76LQGHOQDGRGDWQD
LQIRUPDFLMD]DSUHVNXãDQMHL]YHGEHSURWRNROD3,;,73URIRUPDVSHFLILNDFLMH]D
XSRUDEQLND
Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one
(DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 5:
Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for
Testing (PIXIT) proforma specification for the user
Ta slovenski standard je istoveten z: ETS 300 403-5 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
35.100.30 Omrežni sloj Network layer
SIST ETS 300 403-5:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 403-5:1999

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SIST ETS 300 403-5:1999
EUROPEAN ETS 300 403-5
TELECOMMUNICATION September 1997
STANDARD
Source: SPS Reference: DE/SPS-05092
ICS: 33.020
Key words: ISDN, DSS1, layer 3, testing, ATS, PIXIT, user
Integrated Services Digital Network (ISDN);
Digital Subscriber Signalling System No. one (DSS1) protocol;
Signalling network layer for circuit-mode basic call control;
Part 5: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT) proforma
specification for the user
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1997. All rights reserved.

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ETS 300 403-5: September 1997
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 403-5: September 1997
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .8
3.1 Definitions .8
3.2 Abbreviations .8
4 Abstract Test Method (ATM).9
5 Untestable test purposes.9
6 ATS conventions .9
6.1 Declarations part.9
6.1.1 Type definitions .9
6.1.1.1 Simple type definitions.9
6.1.1.2 Structured type definitions .9
6.1.1.2.1 TTCN structured type definitions .9
6.1.1.2.2 ASN.1 structured type definitions.10
6.1.1.3 ASP type definitions.10
6.1.1.3.1 TTCN ASP type definitions .10
6.1.1.3.2 ASN.1 ASP type definitions .10
6.1.1.4 PDU type definitions .10
6.1.1.4.1 TTCN PDU type definitions.10
6.1.1.4.2 ASN.1 PDU type definitions .11
6.1.2 Test suite constants .11
6.1.3 Test suite parameters .11
6.1.4 Variables .11
6.1.4.1 Test suite variables.11
6.1.4.2 Test case variables.11
6.1.5 Test suite operation definitions.11
6.2 Constraints part.12
6.2.1 Structured type constraint declaration.12
6.2.2 ASN.1 type constraint declaration .12
6.2.3 ASP type constraint declaration .12
6.2.3.1 ASN.1 ASP type constraint declaration .12
6.2.3.2 TTCN ASP type constraint declaration.12
6.2.4 PDU type constraint declaration.12
6.2.4.1 ASN.1 PDU type constraint declaration.12
6.2.4.2 TTCN PDU type constraint declaration .12
6.2.5 Derived constraints.12
6.2.6 Parameterized constraints.12
6.2.7 Value assignment.13
6.2.7.1 Specific values.13
6.2.7.2 Matching values.13
6.3 Dynamic part.13
6.3.1 Test cases.13
6.3.2 Test steps.13
6.3.3 Defaults .13
7 ATS to TP map.13
8 PCTR conformance.13

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ETS 300 403-5: September 1997
9 PIXIT conformance. 14
10 ATS conformance. 14
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma . 15
A.1 Identification summary. 15
A.1.1 Protocol conformance test report. 15
A.1.2 IUT identification. 15
A.1.3 Testing environment. 15
A.1.4 Limits and reservations . 16
A.1.5 Comments. 16
A.2 IUT conformance status . 16
A.3 Static conformance summary. 16
A.4 Dynamic conformance summary. 16
A.5 Static conformance review report . 17
A.6 Test campaign report. 18
A.7 Observations. 38
Annex B (normative): Partial PIXIT proforma . 39
B.1 Identification summary. 39
B.2 Abstract test suite summary . 39
B.3 Test laboratory. 39
B.4 Client (of the test laboratory) . 40
B.5 System Under Test (SUT) . 40
B.6 Protocol information. 41
B.6.1 Protocol identification . 41
B.6.2 Configuration to be tested .41
B.6.3 Configuration options . 41
B.6.4 Test management timers . 42
B.6.5 Sending of messages by IUT . 42
B.6.6 Parameter values . 43
Annex C (normative): Abstract Test Suite (ATS). 45
C.1 The TTCN Graphical form (TTCN.GR) .45
C.2 The TTCN Machine Processable form (TTCN.MP) . 45
Annex D (informative): General structure of ATS. 46
History. 47

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ETS 300 403-5: September 1997
Foreword
This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols and
Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS is part 5 of a multi-part standard covering the Digital Subscriber Signalling System No. one
(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) signalling network layer
for circuit-mode basic call control, as described below:
Part 1: "Protocol specification [ITU-T Recommendation Q.931 (1993), modified]";
Part 2: "Specification and Description Language (SDL) diagrams";
Part 3: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 4: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";
Part 5: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for
Testing (PIXIT) proforma specification for the user";
Part 6: "TSS&TP specification for the network";
Part 7: "ATS and partial PIXIT proforma specification for the network".
Transposition dates
Date of adoption: 5 September 1997
Date of latest announcement of this ETS (doa): 31 December 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 30 June 1998
Date of withdrawal of any conflicting National Standard (dow): 30 June 1998

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1 Scope
This fifth part of ETS 300 403 specifies the Abstract Test Suite (ATS) and partial Protocol Implementation
eXtra Information for Testing (PIXIT) proforma for the User side of the T reference point or coincident S
and T reference point (as defined in ITU-T Recommendation I.411 [10]) of implementations conforming to
the standards for the signalling network layer for circuit-mode basic call control of the Digital Subscriber
Signalling System No. one (DSS1) protocol for the pan-European Integrated Services Digital Network
(ISDN), ETS 300 403-1 [1] and ETS 300 403-2 [2].
ETS 300 403-4 [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 Network side of the T reference point or coincident S and T reference point of
implementations conforming to ETS 300 403-1 [1] and ETS 300 403-2 [2].
2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ETS 300 403-1: "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]".
[2] ETS 300 403-2: "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-
mode basic call control; Part 2: Specification and Description Language (SDL)
diagrams".
[3] ETS 300 403-3: "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".
[4] ETS 300 403-4: "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-
mode basic call control; Part 4: Test Suite Structure and Test Purposes
(TSS&TP) specification for the user".
[5] ISO/IEC 9646-1: "Information Technology - OSI Conformance Testing
Methodology and Framework; Part 1: General Concepts".
[6] ISO/IEC 9646-2: "Information Technology - OSI Conformance Testing
Methodology and Framework; Part 2: Abstract Test Suite Specification".
[7] ISO/IEC 9646-3: "Information Technology - OSI Conformance Testing
Methodology and Framework; Part 3: The Tree and Tabular Combined
Notation".
[8] ISO/IEC 9646-4: "Information Technology - OSI Conformance Testing
Methodology and Framework; Part 4: Test realization".
[9] ISO/IEC 9646-5: "Information Technology - OSI Conformance Testing
Methodology and Framework; Part 5: Requirements on test laboratories and
clients for the conformance assessment process".
[10] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces -
Reference configurations".

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3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
Abstract Test Suite (ATS): See ISO/IEC 9646-1 [5].
Implementation Under Test (IUT): See ISO/IEC 9646-1 [5].
Lower Tester (LT): See ISO/IEC 9646-1 [5].
Point of Control and Observation (PCO): See ISO/IEC 9646-1 [5].
Protocol Conformance Test Report (PCTR): See ISO/IEC 9646-1 [5].
Protocol Implementation Conformance Statement (PICS): See ISO/IEC 9646-1 [5].
PICS proforma: See ISO/IEC 9646-1 [5].
Protocol Implementation eXtra Information for Testing (PIXIT): See ISO/IEC 9646-1 [5].
PIXIT proforma: See ISO/IEC 9646-1 [5].
System Under Test (SUT): See ISO/IEC 9646-1 [5].
Upper Tester (UT): See ISO/IEC 9646-1 [5].
3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply :
ASP Abstract Service Primitive
ATM Abstract Test Method
ATS Abstract Test Suite
BA Basic Access
CES Connection Endpoint Suffix
CM Co-ordination Message
ExTS Executable Test Suite
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
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
PRA Primary Rate Access
SUT System Under Test
TP Test Purpose
TTCN Tree and Tabular Combined Notation
UT Upper Tester

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4 Abstract Test Method (ATM)
The Remote test method is applied for the basic call user ATS. The Point of Control and Observation
(PCO) resides at the service access point between layers 2 and 3. This PCO is named "L" (for Lower).
The L PCO is used to control and observe the behaviour of the Implementation Under Test (IUT) and test
case verdicts are assigned depending on the behaviour observed at this PCO.
Tester SUT
LT IUT
PCO
Layer 2 Layer 2
Layer 1 Layer 1
Service provider
Figure 1: Remote test method
5 Untestable test purposes
In some test purposes, an ESTABLISH-INDICATION is to be received by the IUT. This layer 2 primitive
will only be transmittted by the layer 2 of the IUT on receipt of a SABME frame and only if V(S)<>V(A).
This condition can not be reached considering the test method used. So this test purposes are not
testable:
L3U_U00_I_012, L3U_U01_I_009, L3U_U02_I_009, L3U_U03_I_009, L3U_U04_I_009,
L3U_U07_I_010, L3U_U08_I_010, L3U_U09_I_010, L3U_U10I_I_010, L3U_U10O_I_009,
L3U_U11I_I_009, L3U_U11O_I_008, L3U_U12I_I_010, L3U_U12O_I_009, L3U_U15I_I_010,
L3U_U15O_I_009, L3U_U17_I_009, L3U_U19I_I_008, L3U_U19O_I_007, L3U_U25_I_010,
L3U_SEG_I_004.
6 ATS conventions
This clause is structured similarly to the structure of a TTCN ATS. However, the names of the subclauses
are arranged in a way more suitable to this ETS.
6.1 Declarations part
6.1.1 Type definitions
6.1.1.1 Simple type definitions
Where appropriate, simple types have a length, a value list or a range restriction attached.
Simple types defined as being of some string type (e.g. BIT STRING, OCTET STRING), have a length
restriction or a value list attached.
Simple types, defined as being of INTEGER type, have a value list or a range restriction attached.
6.1.1.2 Structured type definitions
6.1.1.2.1 TTCN structured type definitions
All structured type definitions are provided with a full name.
All elements in every structured type definition, defined as being of some string type (e.g. BIT STRING,
OCTET STRING), have a length restriction attached.

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If an element in a structured type definition is defined as being of a referenced type, the (possible)
restriction is defined in that referenced type.
For information elements the identifier, which is unique for each element, has its type defined as a simple
type where the value list is restricted to the single value which is the identifier itself. This has the
advantage that it allows a test system derived from this ATS to easily identify information elements
embedded in messages. An ATS where information element identifiers are represented as unrestricted
types can present difficulties for a derived test system in the case where it needs to find one information
element embedded in a number of others and the constraints for the other elements have the any-or-omit
value. In such a case the test system cannot easily find the beginning of each information element.
6.1.1.2.2 ASN.1 structured type definitions
There are no ASN.1 structured type definitions in the ATS.
6.1.1.3 ASP type definitions
6.1.1.3.1 TTCN ASP type definitions
TTCN ASP type definitions only contain one PDU or no PDU at all.
All TTCN ASP type definitions are provided with a full identifier.
Some ASPs are not parameterized as shown in the example in table 1. Such ASPs are only used for
requesting or receiving service from the lower layer.
Table 1: TTCN ASP type definition DL_REL_IN
TTCN ASP Type Definition
ASP NAME : DL_REL_IN(DL_RELEASE_INDICATION)
PCO Type : SAP
Comments :
Parameter Name           |   Parameter Type    |    Comments
Detailed Comments :
Table 2 shows an example of a parameterized ASP. All ASPs containing PDUs contain only that PDU and
no other parameters.
Table 2: TTCN ASP type definition DL_DATA_RQ
TTCN ASP Type Definition
ASP NAME : DL_DATA_RQ(DL_DATA_REQUEST)
PCO Type : SAP
Comments :
Parameter Name           |   Parameter Type    |    Comments
mun (MessageUnit)         |PDU            |
Detailed Comments :
6.1.1.3.2 ASN.1 ASP type definitions
There are no ASN.1 ASP type definitions in the ATS.
6.1.1.4 PDU type definitions
6.1.1.4.1 TTCN PDU type definitions
The TTCN PDU type reflects the actual data being transferred or received. All PDUs are embedded in
ASPs.
If a specific PDU type definition contains elements defined in terms of a pre-defined type, that element has
a restriction attached to it.

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6.1.1.4.2 ASN.1 PDU type definitions
There are no ASN.1 PDU type definitions in the ATS.
6.1.2 Test suite constants
Each test suite constant is defined in terms of a predefined type or a referenced type. The values given in
the value column will remain unchanged throughout the test suite.
6.1.3 Test suite parameters
Each test suite parameter is defined in terms of a predefined type or a referenced type. A referenced type
is used when it is necessary to attach restrictions to these type definitions (it is not allowed to include
restrictions directly in the test suite parameter table). The referenced type can have a length or value
restriction attached to it in its declaration table.
6.1.4 Variables
6.1.4.1 Test suite variables
No Test Suite Variables are used or defined in this ATS.
6.1.4.2 Test case variables
Each test case variable is defined in terms of a predefined type or a referenced type. A referenced type is
used when it is necessary to attach restrictions to these type definitions (it is not allowed to include
restrictions directly in the test case variable table). The referenced type can have a length or value
restriction attached to it in its declaration table.
Where test case variables are used in constraints, they are passed as formal parameters.
6.1.5 Test suite operation definitions
The description part of a test suite operation definition uses either natural language or meta C.
Table 3: Test suite operation definition ASSIGN_CHI
Test Suite Operation Definition
Operation Name : ASSIGN_CHI(basic, primary : CHI; basic_flag : BOOLEAN)
Result Type  : CHI
Comments    : This operation is used to assign a correct Channel identification information
         element to PDUs dependent on the type of access that is tested.
Description
CHI ASSIGN_CHI(basic,primary,basic_flag)
If the value of the basic_flag is set to TRUE, the result of the operation ASSIGN_CHI will be
the value represented by the parameter basic which is of type CHI. Else the operation results in
the value represented by the parameter primary.
Examples:
ASSIGN_CHI(CHI1b_R1, CHI1p_R1, TRUE) = CHI1b_R1
ASSIGN_CHI(CHI1b_R1, CHI1p_R1, FALSE) = CHI1p_R1
Detailed comments :
The test suite operation definition shown in table 3 is used in the constraints part when assigning an
element of type CHI a value. The CHI type can be defined in two ways depending on whether the ATS is
testing basic or primary rate access. To avoid duplicate types and thereby duplicate test cases this
operation is used to assign a value to an element of CHI type. It takes three parameters:
SULPDU\DFRQVWUDLQWRIW\SH&+,YDOLGIRUSULPDU\UDWHDFFHVV
EDVLFDFRQVWUDLQWRIW\SH&+,YDOLGIRUEDVLFDFFHVV
EDVLFBIODJD%RROHDQYDOXH758(LIEDVLFDFFHVVLVDSSOLFDEOH)$/6(RWKHUZLVH
This operation returns the correct constraint according to the Boolean flag basic_flag. That constraint will
then be assigned to the specific element of type CHI.

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6.2 Constraints part
6.2.1 Structured type constraint declaration
For every structured type definition there exists one or more structured type constraint.
6.2.2 ASN.1 type constraint declaration
There are no ASN.1 type constraint declarations in the ATS.
6.2.3 ASP type constraint declaration
6.2.3.1 ASN.1 ASP type constraint declaration
There are no ASN.1 ASP type constraint declarations in the ATS.
6.2.3.2 TTCN ASP type constraint declaration
The PDUs to be sent or received are passed to the TTCN ASP constraint declarations Ms and Mr as
parameters of meta type PDU. Only if values inside a specific PDU have to be referenced, the use of the
meta type PDU is not allowed according to ISO/IEC 9646-3 [7]. In such cases different TTCN ASP
constraint declarations are used, that are defined to carry only a specific type of PDU (e.g. SETUP). Table
4 shows an example of such a TTCN ASP constraint declaration.
Table 4: TTCN ASP constraint declaration Sr
TTCN ASP Constraint Declaration
Constraint Name : Sr(PARAM: SETUP_PDU)
ASP Type    : DL_DAT_IN_SETUP
Derivation Path :
Comments    : ASP to indicate the receipt of SETUP messages.
Parameter Name           |   Parameter Value    |    Comments
mun                |PARAM            |
Detailed Comments :
All ASP constraints have a specific value for its parameter. No matching symbols are used in ASPs.
6.2.4 PDU type constraint declaration
6.2.4.1 ASN.1 PDU type constraint declaration
There are no ASN.1 PDU type constraint declarations in the ATS.
6.2.4.2 TTCN PDU type constraint declaration
PDU constraints are used for assigning values or patterns to the data being sent or received.
6.2.5 Derived constraints
Derived constraints are used in this ATS only for SETUP and ERROR PDUs.
6.2.6 Parameterized constraints
Parameterized constraints are used in this ATS.

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6.2.7 Value assignment
6.2.7.1 Specific values
For specific value assignment both explicit values and references to explicit values are used.
6.2.7.2 Matching values
As matching values the following mechanisms are used:
Instead of Value:
AnyOrOmit "*"
AnyValue "?"
Omit "-"
Inside value:
AnyOne "?"
AnyOrNone "*"
6.3 Dynamic part
6.3.1 Test cases
Each test case contains the test purpose text from ETS 300 403-4 [4]. To be able to read and understand
the test case dynamic behaviour it is recommended that the test steps are understood first.
6.3.2 Test steps
Much use has been made of test steps to avoid needless repetition of dynamic behaviour.
6.3.3 Defaults
Note the use of the RETURN statement which is defined in DAM1 of ISO/IEC 9646-3 [7]. This allows valid
background behaviour to be handled in the default tree with a possibility to return to the original set of
alternatives in the test case.
7 ATS t
...