SIST EN 301 490-2 V1.2.1:2005
(Main)Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service for the VPN b service entry point; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service for the VPN b service entry point; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma
Editorial revision decided at the 4th TC SPAN Plenary.
Zasebno omrežje z integriranimi storitvami (PISN) – Signalizacijski protokol med centralami – Dopolnilna storitev: predaja klica za vstopno točko VPN "b" storitve – 2. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service for the VPN b service entry point; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 301 490-2 Version 1.2.1SIST EN 301 490-2 V1.2.1:2005en01-januar-2005SIST EN 301 490-2 V1.2.1:2005SLOVENSKI
STANDARD
SIST EN 301 490-2 V1.2.1:2005
ETSI EN 301 490-2 V1.2.1 (2002-01)European Standard (Telecommunications series) Private Integrated Services Network (PISN);Inter-exchange signalling protocol;Call transfer supplementary servicefor the VPN "b" service entry point;Part 2: Abstract Test Suite (ATS) and partial ProtocolImplementation eXtra Information for Testing (PIXIT)proforma specificationSIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 2
Reference REN/SPAN-130281-2 Keywords ATS, PISN, PIXIT, QSIG, supplementary service, testing, VPN ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2002. All rights reserved.
SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 3 Contents Intellectual Property Rights.5 Foreword.5 1 Scope.6 2 References.6 3 Definitions and abbreviations.6 3.1 Definitions.6 3.2 Abbreviations.6 4 Abstract Test Method (ATM).7 4.1 Description of ATM used.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.9 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.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 System Under Test (SUT).17 B.6 Protocol information.18 B.6.1 Protocol identification.18 SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 4 B.6.2 IUT information.18 B.6.2.1 Parameter values.18 B.6.2.2 Timer values.18 B.6.2.3 Information parameter values.19 B.7 Basic call PIXIT items.20 B.7.1 Parameter values - information element coding.20 Annex C (normative): Abstract Test Suite (ATS).21 C.1 The TTCN Graphical form (TTCN.GR).21 C.2 The TTCN Machine Processable form (TTCN.MP).21 Annex D (informative): Changes.22 D.1 Comment 2 of 4TD 175 clause 1.2.22 D.2 Comment 3 of 4TD 175 clause 1.2.24 D.3 Comment 4 of 4TD 175 clause 1.2.24 Annex E (informative): Bibliography.26 History.27
SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 5 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 2 for a multi-part deliverable covering the Private Integrated Services Network (PISN); Inter-exchange signalling protocol for Call transfer supplementary service for the VPN "b" service entry point, as described below: Part 1: "Test Suite Structure and Test Purposes (TSS&TP) specification"; Part 2: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification".
National transposition dates Date of adoption of this EN: 18 January 2002 Date of latest announcement of this EN (doa): 30 April 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2002 Date of withdrawal of any conflicting National Standard (dow): 31 October 2002
SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 6 1 Scope The present document specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the VPN "b" reference point of implementations conforming to the standard for the Call Transfer supplementary service (SS-CT) as described in ETS 300 261 [1]. EN 301 490-1 [3] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT proforma specification. 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 ETS 300 261: "Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service [ISO/IEC 13869 (1995) modified]". [2] ISO/IEC 9646 (all parts): "Information technology - Open Systems Interconnection - Conformance testing methodology and framework". [3] ETSI EN 301 490-1: "Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Call transfer supplementary service for the VPN "b" service entry point; Part 1: Test Suite Structure and Test Purposes (TSS&TP) specification". [4] ETSI TR 101 101 (V1.1.1): "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)". [5] 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)". 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in ISO/IEC 9646 [2] apply. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ATM Abstract Test Method ATS Abstract Test Suite BER Basic Encoding Rules ETS Executable Test Suite IUT Implementation Under Test MOT Means Of Testing MTC Main Test Component SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 7 PCO Point of Control and Observation PCTR Protocol Conformance Test Report PICS Protocol Implementation Conformance Statement PIXIT Protocol Implementation eXtra Information for Testing PTC Parallel Test Component SS-CT Call Transfer Supplementary Service SUT System Under Test TP Test Purpose TTCN Tree and Tabular Combined Notation VPN Virtual Private Network 4 Abstract Test Method (ATM) 4.1 Description of ATM used The multi-party test method is applied for testing the IUT. The general configuration used is shown in figure 1. A Point of Control and Observation (PCO) resides at the service access point between layers 2 and 3 in the test system. The PCO used by the MTC is named "L0" (for Lower) and the PCO used by the PTC is named "L1". These PCOs are 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 these PCOs. A third "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.
PTC_D
CPA_D
MTC
PTC1
CPA1
PCO L0
PCO
L1
Informal test co-ordination by operator
PCO
O
IUT
Figure 1: Multi-party test method Not all components are used in every test case and the relationship between the IUT and the tester depends on the test group: • When the IUT is in the Authentication configuration, the IUT is only connected to the MTC. The verdict depends only on the behaviour observed at the PCO between the IUT and the MTC. The PTC1 and PTC_D are not used. • When the IUT is in the Home and Visitor configuration, the PTC1 and the MTC are both used. The verdict is assigned by the MTC or the PTC1 depending on the test purpose. The PTC_D and PCO O are used to specify control above the IUT. SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 8 5 Untestable test purposes There are no untestable test cases associated with this ATS and ATM. 6 ATS conventions 6.1 Version of TTCN used The version of TTCN used is that defined in TR 101 101 [4]. 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 as 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 [2] and in TR 101 101 [4] 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 [2] in which comment fields have been used as a means of encoding rules. 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 [5]. 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" is used. In this particular ATS all ASN.1 type constraints which are of type "Component" are to be encoded using BER. SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 9 Table 1: ASN.1 type constraint declaration showing use of encoding variation ASN.1 Type Constraint Declaration Constraint Name : CallTransferComplete_inv_S1 (INV_ID: InvokeIDType ASN.1 Type
: Component Derivation Path
: Encoding Variation : Comments
: ASN1_Encoding: BER Description callTransferComplete_Comp callTransferComplete_InvokeComp { invokeID INV_ID, operation_value localValue 12, argument { endDesignation primaryEnd, callStatus answered }} Detailed comments:
7 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. 8 PCTR conformance A test laboratory, when requested by a client to produce a PCTR, is required, as specified in ISO/IEC 9646-5 [2], to produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 [2]. 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. 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 [2], 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 annex C, is required, as specified in ISO/IEC 9646-5 [2], 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. SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 10 10 ATS conformance The test realizer, producing MOT and ETS for this ATS specification, shall comply with the requirements of ISO/IEC 9646-4 [2]. In particular, these concern the realization of an ETS based on each ATS. The test realizer shall provide a statement of conformance of the MOT to this ATS specification. An ETS, 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 [2]. A test laboratory, which claims to conform to this ATS specification, shall use a MOT which conforms to this ATS. SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 11 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: ETS 300 261 PICS:
Previous PCTRs (if any):
A.1.3 Testing environment PIXIT reference number:
ATS specification: EN 301 490-2 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):
SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 12 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. . . . . A.1.5 Comments Additional comments may be given by either the client or the test laboratory on any of the contents of the PCTR, for example, to note disagreement between the two parties. . . . . A.2 IUT conformance status This IUT has/has not been shown by conformance assessment to be non-conforming to the specified protocol specification. Strike the appropriate words in this sentence. If the PICS for this IUT is consistent with the static conformance requirements (as specified in clause A.3 of the present document) and there are no "FAIL" verdicts to be recorded (in clause A.6) strike the words "has", otherwise strike the words "has not". A.3 Static conformance summary The PICS for this IUT is/is not consistent with the static conformance requirements in the specified protocol. Strike the appropriate words in this sentence. A.4 Dynamic conformance summary The test campaign did/did not reveal errors in the IUT. Strike the appropriate words in this sentence. If there are no "FAIL" verdicts to be recorded (in clause A.6 of the present document) strike the word "did"; otherwise strike the words "did not". Summary of the results of groups of tests: . . . SIST EN 301 490-2 V1.2.1:2005
ETSI ETSI EN 301 490-2 V1.2.1 (2002-01) 13 A.5 Static conformance review report If clause A.3 indicates non-conformance, this clause itemizes the mismatches between the PICS and the static conformance requirements of the specified protocol specification. . . . . . . A.6 Test campaign report ATS reference Selected? (Y/N) Run? (Y/N) Verdict Observations CT_Trans01_001
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