SIST EN 301 068-5 V1.2.1:2003

• Abstract:

  Upgrade of test specification

• Status: Published
• Publication Date: 31-Oct-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2003
• Due Date: 01-Nov-2003
• Completion Date: 01-Nov-2003
• Ref Project: ETSI EN 301 068-5 V1.2.1 (2002-08) - 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 is the Slovenian adoption of ETSI EN 301 068-5 for Broadband Integrated Services Digital Network (B-ISDN) DSS2 protocol testing on the network side. It specifies the Test Suite Structure and Test Purposes (TSS&TP) for ATM transfer capability and traffic parameter indication at the TB reference point, including the coincident SB/TB case, so conformance tests can be built for network implementations.

What does SIST EN 301 068-5 V1.2.1:2003 specify?

SIST EN 301 068-5 V1.2.1:2003 defines the network test structure and the test purposes for implementations that conform to EN 301 068-1. It is a testing specification, not the protocol specification itself, and it is aimed at the network side of the B-ISDN user-network interface.

Clause 1 limits the scope to the TB reference point or coincident SB and TB reference point. Clause 4 gives the TSS, clause 5 gives the TPs, clause 6 states compliance rules for an Abstract Test Suite (ATS), and clause 7 sets a minimum for comprehensive testing services. Annex A is a bibliography.

What are the key requirements of SIST EN 301 068-5 V1.2.1:2003?

The main content of SIST EN 301 068-5 V1.2.1:2003 is the set of test purposes that a network implementation should satisfy at the signalling level. The document focuses on observable message exchanges, call states, and error handling.

The test suite is organized into two signalling directions

Clause 4 splits the TSS into procedures at the originating interface and at the destination interface. In practice, this means the standard checks both directions of a call: how the network reacts when it receives a SETUP message, and how it behaves when it has to send SETUP for an incoming call.

Each TP has a defined naming rule

Clause 5.1.1 gives the TP identifier pattern <suite_id>_<group>_<nnn>, with INDN used for the network test suite. This makes test cases traceable to a group and a numbered purpose, which matters when building, selecting, or deselecting tests from a PICS proforma.

The TP strategy is based on external behaviour

Clause 5.1.3 says the TPs come from analysis of EN 301 068-1 and EN 301 068-2, and they target externally visible behaviour. That means the tests are written around messages and call outcomes, not internal implementation details.

Call-state checking is part of many TPs

Clause 5.1.4 ties several TPs to a final call state such as N3, N6, N7, N9 or N10. In practice, the implementation under test (IUT) must show the expected state using the STATUS ENQUIRY and STATUS exchange described in EN 300 443-1.

The core test groups cover the main traffic parameter cases

Clause 5.2 covers Sustainable Cell Rate parameter set, tagging support, Broadband Bearer Capability, Available Bit Rate (ABR), ATM Block Transfer (ABT), SBR ATM transfer capability, and error conditions. For a reader, this means the standard checks both normal call setup and the handling of unsupported or invalid parameter combinations.

Error handling is explicit

Clause 5.2.1.1.7 and clause 5.2.1.2.7 require specific reactions to invalid or unsupported information elements, including RELEASE COMPLETE or STATUS responses with defined causes. In practice, the network must reject bad signalling in a predictable way, which is important for interoperability and troubleshooting.

Conformance is tied to the ATS and PICS

Clause 6 requires a compliant ATS to match the TP set or an allowed subset, use the same naming conventions, preserve the TP-to-PICS relationship, and comply with ISO/IEC 9646-2. That is the basis for consistent test case design and test case deselection.

Remote testing is the minimum for comprehensive service

Clause 7 says any organization claiming a comprehensive testing service for network equipment conforming to EN 301 068-1 shall use the Remote test method at minimum. This matters for labs because it sets the expected test approach for service claims.

What terms does SIST EN 301 068-5 V1.2.1:2003 define?

• Abstract Test Suite (ATS) - The structured set of abstract test cases derived from the TPs for conformance testing.
• Protocol Implementation Conformance Statement (PICS) - The statement that lists which protocol features an implementation supports, used to select test cases.
• Protocol Implementation eXtra Information for Testing (PIXIT) - Implementation-specific test information needed to run or parameterize tests.
• Implementation Under Test (IUT) - The network implementation being checked for conformance.
• Test Purpose (TP) - A statement of one expected behaviour that a test case should verify.
• Test Suite Structure (TSS) - The grouping of TPs into the structure used to organize test cases.
• TB reference point - The broadband T reference point on the user-network interface used in the scope.
• SB reference point - The broadband S reference point used where SB and TB coincide.

Who uses SIST EN 301 068-5 V1.2.1:2003?

SIST EN 301 068-5 V1.2.1:2003 is used by conformance test laboratories, protocol implementers, and network equipment vendors working on B-ISDN DSS2 signalling. Quality and test engineers use it to derive ATS test cases, map them to PICS entries, and check call handling and error responses. Buyers and evaluators use it to understand what kind of network-side testing a claimed conformance package should cover.

What changed in SIST EN 301 068-5 V1.2.1:2003 from the previous edition?

The document history lists V1.1.2 as a prior publication and V1.2.1 as the publication used for this edition. The history also records the 2002 approval and publication trail for V1.2.1.

Which standards are used with SIST EN 301 068-5 V1.2.1:2003?

• EN 301 068-1 - Provides the protocol specification that the test purposes are based on.
• EN 301 068-2 - Provides the PICS proforma used to relate test purposes to implementation features.
• EN 300 443-1 - Gives the B-ISDN user-network interface layer 3 procedures used for call states and signalling behaviour.
• ISO/IEC 9646-1 - Supplies the conformance testing terminology and framework for ATS, IUT, PICS, PIXIT and TP.
• ISO/IEC 9646-2 - Provides the rules for Abstract Test Suite specification and ATS compliance.
• ITU-T Recommendation I.413 - Defines the B-ISDN user-network interface reference points used in the scope.
• ITU-T Recommendations Q.2961.1, Q.2961.2, Q.2961.3, Q.2961.4 and Q.2961.6 - Supply the signalling features and parameter sets behind the TP groups.
• ETS 300 406 - Is cited in the bibliography as methodology guidance for protocol and profile conformance testing.

What does the SIST EN 301 068-5 V1.2.1:2003 document contain?

Clause 4 gives the TSS, and clause 5 gives the TPs grouped by originating and destination interface procedures. The TP set covers setup, acceptance, refusal, parameter negotiation, and error cases for the named ATM traffic parameter families. Clause 5.1.1 includes the TP naming convention table, which is used to identify each test case unambiguously. Annex A contains bibliography references used to support the testing methodology.

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
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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Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [e-mail] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2002. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 301 068-5 V1.2.1:2003

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
ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 4
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
ETSI ETSI EN 301 068-5 V1.2.1 (2002-08) 5
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
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