SIST EN 301 068-5 V1.2.1:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RPUHåMHBroadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 301 068-5 Version 1.2.1SIST EN 301 068-5 V1.2.1:2003en01-november-2003SIST EN 301 068-5 V1.2.1:2003SLOVENSKI
STANDARD



SIST EN 301 068-5 V1.2.1:2003



ETSI EN 301 068-5 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 5: Test Suite Structure and Test Purposes (TSS&TP)specification for the network
SIST EN 301 068-5 V1.2.1:2003



ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 2
Reference REN/SPAN-130275-5 Keywords ATM, ATS, B-ISDN, DSS2, layer 3, network, TSS&TP, UNI ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 3
Contents Intellectual Property Rights.4 Foreword.4 1 Scope.5 2 References.5 3 Definitions, symbols and abbreviations.6 3.1 Definitions.6 3.1.1 Definitions related to conformance testing.6 3.1.2 Definitions related to EN 301 068-1.6 3.2 Symbols.6 3.3 Abbreviations.7 4 Test Suite Structure (TSS).7 5 Test Purposes (TP).8 5.1 Introduction.8 5.1.1 TP naming convention.8 5.1.2 Source of TP definition.8 5.1.3 Test strategy.8 5.1.4 Test of call states.8 5.2 TPs for the ATM transfer capability and traffic parameter indication, network.9 5.2.1 Signalling procedures at the coincident SB/TB and at the TB reference points.9 5.2.1.1 Additional parameter procedures at the originating interface.9 5.2.1.1.1 Sustainable Cell Rate parameter set (01).9 5.2.1.1.2 Traffic management option for support of tagging (02).9 5.2.1.1.3 Broadband Bearer Capability (03).10 5.2.1.1.4 Available Bit Rate set-up parameter (04).10 5.2.1.1.5 ATM Block Transfer capability (05).11 5.2.1.1.6 SBR ATM transfer capability (06).11 5.2.1.1.7 Handling of error conditions (07).12 5.2.1.2 Additional parameter procedures at the destination interface.13 5.2.1.2.1 Sustainable Cell Rate parameter set (08).13 5.2.1.2.2 Traffic management option for support of tagging (09).13 5.2.1.2.3 Broadband Bearer Capability (10).15 5.2.1.2.4 Available Bit Rate set-up parameter (11).15 5.2.1.2.5 ATM Block Transfer capability (12).15 5.2.1.2.6 SBR ATM transfer capability (13).15 5.2.1.2.7 Handling of error conditions (14).16 6 Compliance.17 7 Requirements for a comprehensive testing service.17 Annex A (informative): Bibliography.18 History.19
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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 5 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 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 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 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 301 068-1: "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] ITU-T Recommendation I.413 (1993): "B-ISDN user-network interface". [6] 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]". [7] ITU-T Recommendation Q.2961: "Digital subscriber signalling system No. 2 (DSS 2) - Additional traffic parameters". [8] ITU-T Recommendation Q.2961.1: "Additional signalling capabilities to support traffic parameters for the tagging option and the sustainable cell rate parameter set". [9] ITU-T Recommendation Q.2961.2: "Support of ATM transfer capability in the broadband bearer capability information element". [10] ITU-T Recommendation Q.2961.3: "Signalling capabilities to support traffic parameters for the available bit rate (ABR) ATM transfer capability". SIST EN 301 068-5 V1.2.1:2003



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[11] ITU-T Recommendation Q.2961.4: "Signalling capabilities to support traffic parameters for the ATM Block Transfer (ABT) ATM transfer capability". [12] ITU-T Recommendation Q.2961.6: "Additional signalling procedures for the support of the SBR2 and SBR3 ATM transfer capabilities". 3 Definitions, symbols 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 [6] 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]. Lower Tester (LT): 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]. 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) 3.2 Symbols For the purposes of the present document, the following symbols apply: N0 Network status 0 N3 Network status 3 N6 Network status 6 N7 Network status 7 N9 Network status 9 N10 Network status 10 SB Interface Reference Point at S (broadband) TB Interface Reference Point at T (broadband) SIST EN 301 068-5 V1.2.1:2003



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3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: ABR Available Bit Rate ABT-DT ATM Block Transfer with Delayed Transmission ABT-IT ATM Block Transfer with Immediate Transmission ATM Abstract Test Method ATS Abstract Test Suite B-ISDN Broadband Integrated Services Digital Network DSS2 Digital Subscriber Signalling System No. two ICR Initial Cell Rate IUT Implementation Under Test MBS Maximum Burst Size N0 Null call/connection state N3 Outgoing Call Proceeding call/connection state N6 Call Present call/connection state N7 Call Received call/connection state N9 Incoming Call Proceeding call/connection state N10 Active call/connection state PCR Peak Cell Rate PICS Protocol Implementation Conformance Statement PIXIT Protocol Implementation eXtra Information for Testing RDF Rate Decrease Factor RIF Rate Increase Factor RM Resource Management SBR Statistical Bit Rate ATC TBE ABR Transient Buffer Exposure TP Test Purpose TSS Test Suite Structure 4 Test Suite Structure (TSS) •
Signalling procedures at the coincident SB/TB and at the TB reference points -
Additional parameter procedures at the originating interface.
Sustainable cell rate parameter set
(01)
Traffic management option for support of tagging (02)
Broadband bearer capability
(03)
Available bit rate setup parameter
(04)
ATM transfer block capability
(05)
SBR ATM transfer capability
(06)
Handling of error conditions
(07) SIST EN 301 068-5 V1.2.1:2003



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-
Additional parameter procedures at the destination interface.
Sustainable cell rate parameter set
(08)
Traffic management option for support of tagging (09)
Broadband bearer capability
(10)
Available bit rate setup parameter
(11)
ATM transfer block capability
(12)
SBR ATM transfer capability
(13)
Handling of error conditions
(14) 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: "INDN" for connection INDication, IUT = Network
= 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 301 068-1 [1]. 5.1.3 Test strategy As the base standard EN 301 068-1 [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 301 068-2 [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 in bibliography). 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 [6]. 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 301 068-5 V1.2.1:2003



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5.2 TPs for the ATM transfer capability and traffic parameter indication, network All PICS items referred to in this clause are as specified in EN 301 068-2 [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 Signalling procedures at the coincident SB/TB and at the TB reference points NOTE: Unless otherwise specified, the connection defined by the requested ATM traffic descriptor is available for use. 5.2.1.1 Additional parameter procedures at the originating interface. 5.2.1.1.1 Sustainable Cell Rate parameter set (01) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.1 [8], modified). NOTE: In the following test purpose Sustainable cell rate parameter set includes Sustainable cell rate and Maximum Burst size. INDN_01_01 Ensure that the IUT in N0, on receipt of a SETUP message including a compatible ATM traffic descriptor information element (sustainable cell rate parameter set without traffic management options identifier field), sends a CALL PROCEEDING message, and enters N3. INDN_01_02 Ensure that the IUT, having received the SETUP message including a compatible ATM traffic descriptor information element (sustainable cell rate parameter set without traffic management options identifier field), on receipt a connection indication, sends a CONNECT message (without ATM traffic descriptor information element) and enters N10. 5.2.1.1.2 Traffic management option for support of tagging (02) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.1 [8], modified). INDN_02_01 Ensure that the IUT in N0, on receipt of a SETUP message including a compatible ATM traffic descriptor information element (with Tf subfield of traffic management option indicating "tagging requested"), sends a CALL PROCEEDING message and enters N3. INDN_02_02 Ensure that the IUT in N3, having received a SETUP message including a compatible ATM traffic descriptor information element (with Tf subfield of traffic management option indicating "tagging requested"), to indicate the request of tagging is accepted, sends a CONNECT message (with Tf subfield of traffic management option set to "tagging applied") and enters N10. SIST EN 301 068-5 V1.2.1:2003



ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 10 INDN_02_03 Ensure that the IUT in N3, having received a SETUP message including a compatible ATM traffic descriptor information element (with Tf subfield of traffic management option indicating "tagging requested"), to indicate the request of tagging is not accepted, sends a CONNECT message including an ATM traffic descriptor information element (with Tf subfield of traffic management option set to "tagging not applied"), or sends a CONNECT message without ATM traffic descriptor information element and enters N10. INDN_02_04 Ensure that the IUT in N0, on receipt of a SETUP message including a compatible ATM traffic descriptor information element (with Tf subfield of traffic management option indicating "tagging not allowed"), sends a CALL PROCEEDING message and enters N3. INDN_02_05 Ensure that the IUT, having received the SETUP message including a compatible ATM traffic descriptor information element (with Tf subfield of traffic management option indicating "tagging not allowed"), on receipt a connection indication, sends a CONNECT message without ATM traffic descriptor information element and enters N10. 5.2.1.1.3 Broadband Bearer Capability (03) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.2 [9], modified). INDN_03_01 Ensure that the IUT in N0, on receipt of a SETUP message indicating the ATM transfer capability in a valid broadband bearer capability (i.e. valid combination of the bearer class and the broadband transfer capability values), sends a CALL PROCEEDING message and enters N3. 5.2.1.1.4 Available Bit Rate set-up parameter (04) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.3 [10], modified). INDN_04_01 Ensure that the IUT in N0, on receipt of a SETUP message requesting ABR transfer capability, including a compatible ABR set-up parameter information element, and the IUT is able to provide a PCR which at least equals the requested MCR, sends a CALL PROCEEDING message and enters N3. INDN_04_02 Ensure that the IUT in N0, on receipt of a SETUP message requesting ABR transfer capability, including a compatible ABR set-up parameter information element (without optional parameters: ICR, TBE, RIF RDF), sends a CALL PROCEEDING message and enters N3. INDN_04_03 Ensure that the IUT in N0, on receipt of a SETUP message requesting ABR transfer capability, including valid ABR set-up parameter and ATM traffic descriptor information elements, and the IUT is not able to provide a PCR greater or equal to the MCR sends a RELEASE COMPLETE message with the cause value 37 "User cell rate not available" and remains in N0. INDN_04_04 Ensure that the IUT, having received the SETUP message requesting an ABR transfer capability, and the IUT is able to provide the requested PCR, on receipt a connection indication, sends a CONNECT message (ABR set-up parameters and ATM traffic descriptor information elements included) and enters N10. SIST EN 301 068-5 V1.2.1:2003



ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 11 INDN_04_05 Ensure that the IUT, having received the SETUP message requesting an ABR transfer capability, and the IUT is not able to provide the requested PCR but able to provide a PCR which at least equals to the MCR, on receipt a connection indication, sends a CONNECT message (ABR set-up parameters and adjusted ATM traffic descriptor information elements included) and enters N10. 5.2.1.1.5 ATM Block Transfer capability (05) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.4 [11], modified). INDN_05_01 Ensure that the IUT in N0, on receipt of a SETUP with ABT-IT transfer capability, including Broadband bearer capability information element ("ABT-IT", "point-to-point"), and with a valid ATM traffic descriptor (including forward and backward RM PCR parameters, not including forward and backward SCR and MBS parameters) sends a CALL PROCEEDING message and enters N3. INDN_05_02 Ensure that the IUT in N0, on receipt of a SETUP with ABT-DT transfer capability, including Broadband bearer capability information element ("ABT-DT", "point-to-point"), and with a valid ATM traffic descriptor (including forward and backward RM PCR parameters, not including forward and backward SCR and MBS parameters) sends a CALL PROCEEDING message and enters N3. INDN_05_03 Ensure that the IUT in N0, on receipt of a SETUP with ABT-IT transfer capability, including Broadband bearer capability information element ("ABT-IT", "point-to-point"), and with a valid ATM traffic descriptor (forward and backward RM PCR, forward and backward SCR and MBS parameters are included) sends a CALL PROCEEDING message and enters N3. INDN_05_04 Ensure that the IUT in N0, on receipt of a SETUP with ABT-DT transfer capability, including Broadband bearer capability information element ("ABT-DT", "point-to-point"), and with a valid ATM traffic descriptor (forward and backward RM PCR parameters, forward and backward SCR and MBS parameters are not included) sends a CALL PROCEEDING message and enters N3". 5.2.1.1.6 SBR ATM transfer capability (06) INDN_06_01 Ensure that the IUT in N0, on receipt of a SETUP with SBR2 transfer capability, including a Broadband bearer capability information element ("SBR2") and with a valid ATM traffic descriptor (including forward and backward PCR (CLP = 0 + 1) and SCR/MBS (CLP = 0) parameters, traffic management options field not present), sends a CALL PROCEEDING message and enters N3". INDN_06_02 Ensure that the IUT in N0, on receipt of a SETUP with SBR3 transfer capability, including a Broadband bearer capability information element ("SBR3") and with a valid ATM traffic descriptor (including forward and backward PCR (CLP = 0 + 1) and SCR/MBS (CLP = 0) parameters, traffic management options field not present), sends a CALL PROCEEDING message and enters N3". INDN_06_03 Ensure that the IUT in N0, on receipt of a SETUP with SBR2 transfer capability, when the IUT is not able to provide the SBR2 capability, sends a RELEASE COMPLETE message with cause value 65 "Bearer capability not implemented" and remains in N0. SIST EN 301 068-5 V1.2.1:2003



ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 12 INDN_06_04 Ensure that the IUT in N0, on receipt of a SETUP with SBR3 transfer capability, when the IUT is not able to provide the SBR3 capability, sends a RELEASE COMPLETE message with cause value 65 "Bearer capability not implemented" and remains in N0. 5.2.1.1.7 Handling of error conditions (07) Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961 [7], modified). INDN_07_01 Ensure that the IUT in N0, on receipt of a SETUP message including a incompatible ATM traffic descriptor information element (Combination of traffic parameters not allowed, with IE instruction field flag set to "not significant"), sends a RELEASE COMPLETE message with a cause value 100 "invalid information element contents", and remains in N0. Test purposes for EN 301 068-1 [1] (ITU-T Recommendation Q.2961.2 [9], modified). INDN_07_02 Ensure that the IUT in N0, on receipt of a SETUP message indicating the ATM transfer capability including a not supported broadband bearer capability (i.e. a not supported combination of the bearer class and the broadband transfer capability values), sends a RELEASE COMPLETE message with a cause value 65
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