SIST EN 301 815-3 V1.1.1:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.UDGEDBroadband 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 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 815-3 Version 1.1.1SIST EN 301 815-3 V1.1.1:2005en01-januar-2005SIST EN 301 815-3 V1.1.1:2005SLOVENSKI
STANDARD
ETSI ETSI EN 301 815-3 V1.1.1 (2002-10) 2
Reference DEN/SPAN-130251-3 Keywords B-ISDN, DSS2, quality, TSS&TP, user ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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ETSI ETSI EN 301 815-3 V1.1.1 (2002-10) 3
Contents Intellectual Property Rights.4 Foreword.4 1 Scope.5 2 References.5 3 Definitions and abbreviations.6 3.1 Definitions.6 3.1.1 Definitions related to conformance testing.6 3.1.2 Definitions related to EN 301 815-1.6 3.2 Abbreviations.6 4 Test Suite Structure (TSS).7 5 Test Purposes (TP).7 5.1 Introduction.7 5.1.1 TP naming convention.7 5.1.2 Source of TP definition.7 5.1.3 Test strategy.7 5.1.4 Test of call states.7 5.2 TPs for the Quality of Service Class and Parameters indication, user.8 5.2.1 Support of Quality of Service classes (01).8 5.2.2 Signalling of individual Quality of Service parameters.8 5.2.2.1 End-to-end transit delay procedures (02).8 5.2.2.2 Extended QoS parameters procedures (03).12 6 Compliance.13 7 Requirements for a comprehensive testing service.13 Annex A (informative): Bibliography.14 History.15
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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 3 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
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1 Scope The present document specifies the user Test Suite Structure and Test Purposes (TSS&TP) for the TB reference point or coincident SB and TB reference point (as defined in ITU-T Recommendation I.413 [5]) of implementations conforming to the standards 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 Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma based on the present document. 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 (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] ITU-T Recommendation I.413 (1993): "B-ISDN user-network interface". [6] ETSI ETS 300 406: "Methods for Testing and Specification (MTS); Protocol and profile conformance testing specifications; Standardization methodology". [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] ITU-T Recommendation Q.2965.1: "Digital Subscriber Signalling System No. 2 - Support of Quality of Service classes". [9] ITU-T Recommendation Q.2965.2: "Digital Subscriber Signalling System No. 2 - Signalling of individual Quality of Service parameters". SIST EN 301 815-3 V1.1.1:2005

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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]. 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]. 3.1.2 Definitions related to EN 301 815-1 user: DSS2 protocol entity at the User side of the user-network interface where a TB reference point or coincident SB and TB reference point applies user (SB/TB): DSS2 protocol entity at the User side of the user-network interface where a coincident SB and TB reference point applies user (TB): DSS2 protocol entity at the User side of the user-network interface where a TB reference point applies (user is a private ISDN) 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 PICS Protocol Implementation Conformance Statement PIXIT Protocol Implementation eXtra Information for Testing QoS Quality of Service TP Test Purpose TSS Test Suite Structure U0 Null call/connection state U1 Call Initiated call/connection state U10 Active call/connection state U11 Release Request call/connection state U3 Outgoing Call Proceeding call/connection state SIST EN 301 815-3 V1.1.1:2005

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U4 Call Delivered call/connection state U7 Call Received call/connection state U8 Connect Request call/connection state U9 Incoming Call Proceeding call/connection state 4 Test Suite Structure (TSS) • Support of Quality of Service classes (01) • Signalling of individual Quality of Service parameters - End-to-end transit delay procedures (02) - Extended QoS parameters procedures (03) 5 Test Purposes (TP) 5.1 Introduction For each test requirement a TP is defined. 5.1.1 TP naming convention TPs are numbered, starting at 01, within each group. Groups are organized according to the TSS. Additional references are added to identify the actual test suite (see table 1). Table 1: TP identifier naming convention scheme
Identifier: __
= service + type of IUT: "QOSU" for Quality Of Service class and parameters indication, IUT = User
= group number:
two character field representing the group reference according to TSS
= sequential number:
(01-99)
5.1.2 Source of TP definition The TPs are based on EN 301 815-1 [1]. 5.1.3 Test strategy As the base standard EN 301 815-1 [1] contains no explicit requirements for testing, the TPs were generated as a result of an analysis of the base standard and the PICS specification EN 301 815-2 [2]. The TPs are only based on conformance requirements related to the externally observable behaviour of the IUT and are limited to conceivable situations to which a real implementation is likely to be faced (see ETS 300 406 [6]). 5.1.4 Test of call states Many TPs include a reference to the IUT's final call state after the realization of the TP. In these cases the TP includes the requirement to ensure that the IUT has entered this particular final call state. Ensuring that the IUT is in a particular call state shall be realized by following the procedures described in clause 5.6.11 of EN 300 443-1 [7]. According to these procedures, the IUT on receipt of a STATUS ENQUIRY message, shall respond with a STATUS message indicating, in the fifth octet of the Call state information element, the current call state of the IUT. This exchange of messages is not mentioned explicitly in each TP but is considered to be implicit in the reference to the final call state. This way of phrasing the TPs has been used to avoid over-complicating the text and structure of the TPs and to improve the readability. SIST EN 301 815-3 V1.1.1:2005

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5.2 TPs for the Quality of Service Class and Parameters indication, user All PICS items referred to in this clause are as specified in EN 301 815-2 [2] unless indicated otherwise by another numbered reference. Unless specified: • the messages indicated are valid and contain at least the mandatory information elements and possibly optional information elements; • the information elements indicated are valid and contain at least the mandatory parameters and possibly optional parameters. 5.2.1 Support of Quality of Service classes (01) Test purposes for EN 301 815-1 [1] (ITU-T Recommendation Q.2965.1 [8], modified). QOSU_01_01 Ensure that the IUT in U0, to initiate call establishment,
sends a SETUP message (Quality of Service parameter indicating identical forward and backward QoS classes, Broadband bearer capability, ATM traffic descriptor, Broadband bearer capability present, consistent set of parameters) and enters U1. Selection: Outgoing calls with QoS class indication supported. PICS: MCu 1 QOSU_01_02 Ensure that the IUT in U0, on receipt of a SETUP message (Valid combination of traffic parameters, Quality of Service parameter present, requesting a QOS class that is supported),
sends any of a CALL PROCEEDING, ALERTING or CONNECT message and enters the relevant call state U9, U7 or U8. Selection: Incoming calls with QoS class interpretation supported. PICS: MCu 2 QOSU_01_03 Ensure that the IUT in U0, on receipt of a SETUP message (Valid combination of traffic parameters, Quality of Service parameter present, requesting a QOS class that is not supported),
sends a RELEASE COMPLETE message (Cause value = 49) and remains in U0. Selection: Incoming calls with QoS class interpretation supported. PICS: MCu 2 QOSU_01_04 Ensure that the IUT in U0, on receipt of
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