ETSI EN 301 068-6 V1.2.1 (2002-08)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 068-6 Version 1.2.1SIST EN 301 068-6 V1.2.1:2003en01-november-2003SIST EN 301 068-6 V1.2.1:2003SLOVENSKI
STANDARD



SIST EN 301 068-6 V1.2.1:2003



ETSI EN 301 068-6 V1.2.1 (2002-08)European Standard (Telecommunications series) Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Connection characteristics;ATM transfer capability and traffic parameter indication;Part 6: Abstract Test Suite (ATS) and partial ProtocolImplementation eXtra Information for Testing (PIXIT)proforma specification for the network
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ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 2
Reference REN/SPAN-130275-6 Keywords ATM, ATS, B-ISDN, DSS2, network, PIXIT, testing, UNI ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 3
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 301 068-1.7 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.14 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 SIST EN 301 068-6 V1.2.1:2003



ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 4
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
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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 Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication, as identified below: Part 1: "Protocol specification [ITU-T Recommendations Q.2961.1 (1995), Q.2961.2 (1997), Q.2961.3 (1997), Q.2961.4 (1997), Q.2961.6 (1998), modified]"; 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 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: 2 August 2002 Date of latest announcement of this EN (doa): 30 November 2002 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 May 2003 Date of withdrawal of any conflicting National Standard (dow): 31 May 2003
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1 Scope The present document specifies the network Abstract Test Suite (ATS) for the TB reference point or coincident SB and TB reference point (as defined in ITU-T Recommendation I.413 [6]) of implementations conforming to the standards for the signalling user-network layer 3 specification for ATM transfer capability and traffic parameter indication of the Digital Subscriber Signalling System No. two (DSS2) protocol for the pan-European Broadband Integrated Services Digital Network (B-ISDN), EN 301 068-1 [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 TB reference point or coincident SB and TB reference point of implementations conforming to EN 301 068-1 [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 301 068-1: "Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 1: Protocol specification [ITU-T Recommendations Q.2961.1 (1995), Q.2961.2 (1997), Q.2961.3 (1997), Q.2961.4 (1997) and Q.2961.6 (1997), modified]". [2] ETSI EN 301 068-2: "Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification". [3] ISO/IEC 9646-1 (1994): "Information technology; Open Systems Interconnection; Conformance testing methodology and framework; Part 1: General concepts". [4] ISO/IEC 9646-2 (1994): "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". SIST EN 301 068-6 V1.2.1:2003



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[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 301 068-1 [1], EN 300 443-1 [7] and the following apply: 3.1.1 Definitions related to conformance testing Abstract test case: See ISO/IEC 9646-1 [3]. Abstract Test Method (ATM): See ISO/IEC 9646-1 [3]. Abstract Test Suite (ATS): See ISO/IEC 9646-1 [3]. Implementation Under Test (IUT): See ISO/IEC 9646-1 [3]. System Under Test (SUT): See ISO/IEC 9646-1 [3]. Upper Tester (UT): See ISO/IEC 9646-1 [3]. Lower tester: See ISO/IEC 9646-1 [3]. Protocol Implementation Conformance Statement (PICS): See ISO/IEC 9646-1 [3]. PICS proforma: See ISO/IEC 9646-1 [3]. Protocol Implementation eXtra Information for Testing (PIXIT): See ISO/IEC 9646-1 [3]. PIXIT proforma: See ISO/IEC 9646-1 [3]. Test Purpose (TP): See ISO/IEC 9646-1 [3]. Point of Control and Observation (PCO): See ISO/IEC 9646-1 [3]. 3.1.2 Definitions related to EN 301 068-1 network: DSS2 protocol entity at the Network side of the user-network interface where a TB reference point or coincident SB and TB reference point applies network (SB/TB): DSS2 protocol entity at the Network side of the user-network interface where a coincident SB and TB reference point applies network (TB): DSS2 protocol entity at the Network side of the user-network interface where a TB reference point applies (user is the private ISDN) SIST EN 301 068-6 V1.2.1:2003



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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
CM Co-ordinate Message CR Call Reference DSS2 Digital Subscriber Signalling System No. two ExTS Executable Test Suite IE_AI Information element Action Indicator IE_flag Information element instruction indicator flag IUT Implementation Under Test LT Lower Tester
MOT Means Of Testing PCO Point of Control and Observation PDU Protocol Data Unit 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 VC Virtual Channel VCI Virtual Channel Identifier VP Virtual Path VPC Virtual Path Connection 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 TB reference point or coincident SB and TB reference point applies. Thus the IUT is the network 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. SIST EN 301 068-6 V1.2.1:2003



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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. SIST EN 301 068-6 V1.2.1:2003



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MTC
SUT
PTC1
Layer 3  Layer 2  Layer 1
L0


IUT 








L1 

Layer 3  Layer 2  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. SIST EN 301 068-6 V1.2.1:2003



ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 11 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. SIST EN 301 068-6 V1.2.1:2003



ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 12 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 301 068-1 PICS:
Previous PCTRs (if any)
A.1.3 Testing environment PIXIT Reference number:
ATS Specification: EN 301 068-6 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):
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ETSI ETSI EN 301 068-6 V1.2.1 (2002-08) 13 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 present document. . . . . . 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 or 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 o
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