SIST EN 301 002-6 V1.1.3:2005

SLOVENSKI STANDARD
01-julij-2005
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Integrated Services Digital Network (ISDN); Security tools (SET) procedures; 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 301 002-6 Version 1.1.3
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Security tools (SET) procedures;
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
�
2 ETSI EN 301 002-6 V1.1.3 (2000-05)
Reference
DEN/SPS-05141-6
Keywords
ATS, DSS1, ISDN, network, PIXIT, security,
supplementary service
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ETSI
3 ETSI EN 301 002-6 V1.1.3 (2000-05)
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 Abstract Test Method.7
5 Untestable test purposes.8
6 ATS conventions.8
6.1 Version of TTCN used .8
6.2 Use of ASN.1 .8
6.2.1 Situations where ASN.1 is used .8
6.2.2 Specification of encoding rules.8
7 ATS to TP map.9
8 PCTR conformance.9
9 PIXIT conformance.10
10 ATS conformance .10
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.11
A.1 Identification summary .11
A.1.1 Protocol conformance test report.11
A.1.2 IUT identification.11
A.1.3 Testing environment.11
A.1.4 Limits and reservations.12
A.1.5 Comments.12
A.2 IUT conformance status .12
A.3 Static conformance summary.12
A.4 Dynamic conformance summary.12
A.5 Static conformance review report .13
A.6 Test campaign report.13
A.7 Observations.14
Annex B (normative): Partial PIXIT proforma.15
B.1 Identification summary .15
B.2 Abstract test suite summary .15
B.3 Test laboratory .15
B.4 Client (of the test laboratory).16
B.5 System Under Test (SUT).16
B.6 Protocol information .17
B.6.1 Protocol identification .17
B.6.2 IUT information .17
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4 ETSI EN 301 002-6 V1.1.3 (2000-05)
B.6.2.1 Parameter values.17
B.6.2.2 Configuration of IUT .17
B.6.2.3 Timer values .18
B.6.2.4 Parameter values.19
B.7 Basic call PIXIT items .19
B.7.1 Parameter values - information element codings.19
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
Bibliography.21
History.22
ETSI
5 ETSI EN 301 002-6 V1.1.3 (2000-05)
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 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 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 EN covering the Integrated Services Digital Network (ISDN); Security
tools (SET) procedures; Digital Subscriber Signalling System No. one (DSS1) protocol, as identified 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: 28 April 2000
Date of latest announcement of this EN (doa): 31 July 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2001
Date of withdrawal of any conflicting National Standard (dow): 31 January 2001
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6 ETSI EN 301 002-6 V1.1.3 (2000-05)
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 of
implementations conforming to the stage three standard for the Security Tools (SET) procedures for the pan-European
Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1)
protocol, EN 301 002-1 [1].
EN 301 002-5 [3]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 301 002-1 [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, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, subsequent revisions do apply.
• 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 301 002-1: "Integrated Services Digital Network (ISDN); Security Tools (SET)
procedures; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol
specification".
[2] ETSI EN 300 196-1: "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".
[3] ETSI EN 301 002-5: "Integrated Services Digital Network (ISDN); Security Tools (SET)
procedures; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite
Structure and Test Purposes (TSS&TP) specification for the network".
[4] ISO/IEC 9646: "Information technology - Open Systems Interconnection Conformance Testing
Methodology and Framework" (all parts).
[5] ETSI TR 101 101: "Methods for Testing and Specification (MTS); TTCN interim version
including ASN.1 1994 support [ISO/IEC 9646-3] (Second Edition Mock-up for JTC1/SC21
Review)".
[6] ISO/IEC 8825-1: "Information technology - ASN.1 encoding rules: Specification of Basic
Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules
(DER)" (see also ITU-T Recommendation X.690: 1994).
[7] ETSI EN 301 002-2: "Integrated Services Digital Network (ISDN); Security Tools (SET)
procedures; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol
Implementation Conformance Statement (PICS) proforma specification".
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7 ETSI EN 301 002-6 V1.1.3 (2000-05)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ISO/IEC 9646 [4] apply.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATS Abstract Test Suite
BER Basic Encoding Rules
ETS 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
SET Security Tools
SUT System Under Test
TP Test Purpose
TTCN Tree and Tabular Combined Notation
4 Abstract Test Method
The remote test method is applied for the SET network ATS.
A Point of Control and Observation (PCO) resides at the service access point between layers 2 and 3 in the test system.
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.
A second "informal" PCO, called "O" (for Operator) is used to specify control but not observation above the IUT;
events at this PCO are never used to generate test case verdicts. Messages sent by the tester at this PCO explicitly
indicate to the operator actions which are to be performed on the SUT. This is regarded as a preferred alternative to the
use of the implicit send event.
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8 ETSI EN 301 002-6 V1.1.3 (2000-05)
Tester Informal test co- SUT
ordination by
operator
Upper layer(s)
LT IUT
PCO L
Layer 2
Layer 2
Layer 1 Layer 1
Service provider
Figure 1: Remote test method with PCO O for test co-ordination
5 Untestable test purposes
There are no untestable test purposes associated with this ATS.
6 ATS conventions
6.1 Version of TTCN used
The version of TTCN used is that defined in TR 101 101 [5].
6.2 Use of ASN.1
6.2.1 Situations where ASN.1 is used
ASN.1 has been used for three major reasons. First, types defined in ASN.1 can model problems that "pure" TTCN
cannot. For instance, data structures modelling ordered or unordered sequences of data are preferably defined in ASN.1.
Second, ASN.1 provides a better restriction mechanism for type definitions by using sub-type definitions. Third, it is
necessary to use ASN.1 to reproduce the type definitions for remote operation components specified in the base
standards in ASN.1.
The possibility to use TTCN and ASN.1 in combination is used, i.e. referring to an ASN.1 type from a TTCN type.
6.2.2 Specification of encoding rules
There is a variation in the encoding rules applied to ASN.1 types and constraints specified in this ATS and therefore a
mechanism is needed to differentiate the encoding rules. However the mechanism specified in ISO/IEC 9646-3/AM2 [4]
and in TR 101 101 [5] does not facilitate definition of the encoding rules as needed for this ATS. A solution is therefore
used which is broadly in the spirit of ISO/IEC 9646-3/AM2 [4] in which comment fields have been used as a means of
encoding rules.
ETSI
9 ETSI EN 301 002-6 V1.1.3 (2000-05)
For ASN.1 used in this ATS, two variations of encoding rules are used. One is the commonly known Basic Encoding
Rules (BER) as specified in ISO/IEC 8825-1 [6]. In the second case the encoding is according to ISDN, i.e. the ASN.1
data types are a representation of structures contained within the ISDN specification (basic call, Generic functional
protocol or individual supplementary service). For example, if octets of an information element are specified in ASN.1
as a SEQUENCE then this should be encoded in an Executable Test Suite (ETS) as any other ISDN information element
specified using tabular TTCN. This ISDN encoding variation is the default encoding rule for this ATS. This means that
all ASN.1 constraint tables are encoded using ISDN (non-BER) encoding unless stated otherwise. BER encoding should
never be applied to an ASN.1 constraint where BER encoding has not been specified. This encoding rule is sometimes
named "Direct Encoding".
For BER encoding, an indication is given in the comments field of the table header. For this ATS such indications
appear in the ASN.1 type constraint declaration tables only. In the first line of the table header comment field, the
notation "ASN1_Encoding: BER"isused.
NOTE: Within BER, there are a number of variations for the encoding of lengths of fields. According to
EN 300 196-1 [2], an IUT should be able to interpret all length forms within BER for received PDUs.
When sending PDUs containing BER encoding, EN 300 196-1 [2] gives guidelines but makes no
restrictions on the length forms within BER which an IUT may apply.
In this particular ATS all ASN.1 type constraints which are of type "Component" are to be encoded using BER.
Table 1: ASN.1 type constraint declaration showing use of encoding variation
ASN.1 Type Constraint Declaration
Constraint Name: ModifyPinInv1 ( INV_ID: InvokeIdType; OLDPIN_NR: Pin; NEWPIN_NR: Pin; USER_NR:
PartyNumber)
ASN.1 Type: Component
Derivation Path:
Comments: ASN1_Encoding: BER
SET ModifyPin Invoke component
Description
modifyPin_Components
modifyPin_InvokeComp
{ invokeID ?,
operation_value
globalValue modifyPin,
argument {
oldPin OLDPIN_NR,
newPin NEWPIN_NR,
servedUserNr USER_NR
}
}
Detailed comments:
7 ATS to TP map
The identifiers used for the TPs are reused as test case names (see EN 301 002-5 [3]). Thus there is a straightforward
one-to-one mapping.
8 PCTR conformance
A test laboratory, when requested by a client to produce a PCTR, is required, as specified in ISO/IEC 9646-5 [4], to
produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 [4].
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10 ETSI EN 301 002-6 V1.1.3 (2000-05)
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.
9 PIXIT conformance
A test realizer, producing an executable test suite for the ATS specification contained in annex C, is required, as
specified in ISO/IEC 9646-4 [4], 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 IUT.
A test laboratory, offering testing for the ATS specification contained in an
...