ETSI ETS 300 324-3 ed.1 (1995-10)

SLOVENSKI STANDARD
SIST ETS 300 324-3:1997
01-november-1997

Signalizacijski protokoli in komutacija (SPS) - Vmesniki "V" pri digitalnih krajevnih

Signalling Protocols and Switching (SPS) - V interfaces at the digital Local Exchange

(LE); V5.1 interface for the support of Access Network (AN); Part 3: Test Suite Structure

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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Whilst every care has been taken in the preparation and publication of this document, errors in content,

typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to

"ETSI Editing and Committee Support Dept." at the address shown on the title page.

Foreword .......................................................................................................................................................7

1 Scope ..................................................................................................................................................9

2 Normative references..........................................................................................................................9

3 Definitions and abbreviations ............................................................................................................10

3.1 Definitions ..........................................................................................................................10

3.2 Abbreviations .....................................................................................................................11

4 Test Suite Structure (TSS) ................................................................................................................12

4.1 TSS overview.....................................................................................................................12

4.2 Test groups........................................................................................................................13

4.2.1 Protocol groups .............................................................................................13

4.2.1.1 Control protocol ...................................................................13

4.2.1.2 PSTN protocol .....................................................................14

4.2.2 Main test groups............................................................................................14

4.2.2.1 Basic Interconnection (IT) tests...........................................14

4.2.2.2 Capability (CA) tests ............................................................14

4.2.2.3 Valid Behaviour (BV) tests...................................................14

4.2.2.4 Inopportune Behaviour (BO) tests .......................................14

4.2.2.5 Invalid Behaviour (BI) tests..................................................14

4.3 Test step structure.............................................................................................................15

4.3.1 State transitions.............................................................................................15

4.3.1.1 Startup of V5.1 interface......................................................16

4.3.1.3 Control protocol (PSTN port FSM) ......................................17

4.3.1.5 PSTN protocol .....................................................................17

4.3.2 Preconditions.................................................................................................18

4.3.3 Preambles .....................................................................................................18

4.3.4 Postambles....................................................................................................18

4.3.5 Status verification ..........................................................................................18

4.3.5.1 PSTN protocol .....................................................................18

4.3.5.2 Port control protocol.............................................................19

4.3.5.3 Common control protocol ....................................................19

4.3.6 Common test steps .......................................................................................19

4.4 Defaults..............................................................................................................................19

4.5 Abstract Service Primitives (ASPs) and Protocol Data Units (PDUs)................................19

4.5.1 ASPs .............................................................................................................19

4.5.2 PDUs .............................................................................................................19

4.5.2.1 Common control protocol ....................................................19

4.5.2.2 Port control protocol.............................................................19

4.5.2.3 PSTN protocol .....................................................................19

4.5.3 Information elements.....................................................................................20

4.5.3.1 Variable length information elements ..................................20

4.5.3.2 Single octet information elements .......................................20

4.6 Timers and counters of the Abstract Test Suite (ATS) ..................................................... 20

5 Test Purposes (TPs)......................................................................................................................... 22

5.1 Introduction........................................................................................................................ 22

5.1.1 TP naming convention.................................................................................. 22

5.1.2 Source of TP definition ................................................................................. 23

5.1.3 Test strategy ................................................................................................. 23

5.1.4 Requirements not covered by TPs ............................................................... 23

5.1.5 Initial state..................................................................................................... 24

5.1.6 Test and data configuration requirements.................................................... 24

5.2 Control protocol................................................................................................................. 24

5.2.1 Basic interconnection tests (V5NWKAN/CTRL/IT)....................................... 24

5.2.2 Capability tests (V5NWKAN/CTRL/CA)........................................................ 24

5.2.3 Valid behaviour tests (V5NWKAN/CTRL/BV)............................................... 24

5.2.4 Inopportune behaviour tests (V5NWKAN/CTRL/BO) ................................... 32

5.2.5 Invalid behaviour tests (V5NWKAN/CTRL/BI).............................................. 34

5.2.6 Timer expiry and counter mismatch tests (V5NWKAN/CTRL/TI)................. 36

5.3 PSTN protocol................................................................................................................... 37

5.3.1 Basic interconnection tests (V5NWKAN/PSTN/IT)....................................... 37

5.3.2 Capability tests (V5NWKAN/PSTN/CA) ....................................................... 37

5.3.3 Valid behaviour tests (V5NWKAN/PSTN/BV)............................................... 37

5.3.3.1 V5NWKAN/PSTN/BV/0....................................................... 38

5.3.3.2 V5NWKAN/PSTN/BV/1....................................................... 38

5.3.3.3 V5NWKAN/PSTN/BV/2....................................................... 39

5.3.3.4 V5NWKAN/PSTN/BV/3....................................................... 40

5.3.3.5 V5NWKAN/PSTN/BV/4....................................................... 41

5.3.3.6 V5NWKAN/PSTN/BV/5....................................................... 42

5.3.3.7 V5NWKAN/PSTN/BV/6....................................................... 43

5.3.3.8 V5NWKAN/PSTN/BV/7....................................................... 44

5.3.4 Inopportune behaviour tests (V5NWKAN/PSTN/BO)................................... 45

5.3.4.1 V5NWKAN/PSTN/BO/0 ...................................................... 45

5.3.4.2 V5NWKAN/PSTN/BO/1 ...................................................... 46

5.3.4.3 V5NWKAN/PSTN/BO/2 ...................................................... 46

5.3.4.4 V5NWKAN/PSTN/BO/3 ...................................................... 47

5.3.4.5 V5NWKAN/PSTN/BO/4 ...................................................... 47

5.3.4.6 V5NWKAN/PSTN/BO/5 ...................................................... 48

5.3.4.7 V5NWKAN/PSTN/BO/6 ...................................................... 48

5.3.4.8 V5NWKAN/PSTN/BO/7 ...................................................... 49

5.3.5 Invalid behaviour tests (V5NWKAN/PSTN/BI).............................................. 49

5.3.5.1 V5NWKAN/PSTN/BI/1.........................................................49

5.3.5.2 V5NWKAN/PSTN/BI/5.........................................................51

5.3.6 Timer expiry and counter mismatch tests (V5NWKAN/PSTN/TI).................52

5.3.6.1 V5NWKAN/PSTN/TI/2.........................................................52

5.3.6.2 V5NWKAN/PSTN/TI/3.........................................................52

5.3.6.3 V5NWKAN/PSTN/TI/4.........................................................52

5.3.6.4 V5NWKAN/PSTN/TI/5.........................................................52

5.3.6.5 V5NWKAN/PSTN/TI/7.........................................................53

Annex A (informative): Bibliography........................................................................................................54

History..........................................................................................................................................................55

This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols and

Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).

This ETS is part 3 of a multi-part standard covering the V5.1 interface as described below:

Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the network layer

Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing

Part 6: "ATS and partial PIXIT proforma specification for the network layer (LE side)";

This third part of ETS 300 324 contains the Test Suite Structure (TSS) and Test Purposes (TPs) for the

Network layer (NWK) and parts of the system management of the Access Network (AN) side of a V5.1

The objective of this ETS is to provide conformance tests giving a high probability of inter-operability of an

AN and a Local Exchange (LE) from different manufacturers over the V5.1 interface. This ETS covers only

ISO/IEC 9646-1 [5] is used as the basis for the methodology of conformance testing.

Concerning the Public Switched Telephone Network (PSTN) protocol testing, only the procedures defined

in ETS 300 324-1 [1] are covered by the tests defined in this ETS. An Implementation Under Test (IUT),

however, will have implemented a national PSTN protocol part as well. This requires that the tester

generates messages containing the national PSTN protocol specific optional Information Elements (IEs),

otherwise the IUT would not act on messages according to the PSTN protocol procedure definition.

However, this does not provide a comprehensive test of the national PSTN protocol mapping

As the tests use PSTN messages containing optional IEs according to national specifications, the test

result is only valid for the implemented national mapping of the V5.1 PSTN protocol.

This ETS does not cover tests related to functions of the bearer channel. Those functions should be

tested in conjunction with testing of the national PSTN protocol mapping specification.

This ETS contains no requirements concerning NWK tests for Integrated Services Digital Network Basic

This ETS incorporates by dated or undated reference, provisions from other publications. These

normative references are cited at the appropriate places in the text and the publications are listed

hereafter. For dated references, subsequent amendments to or revisions of any of these publications

apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest

[2] ETS 300 324-2 (1994): "Signalling Protocols and Switching (SPS), V interfaces

For the purposes of this ETS, the following definitions apply, together with those given in

invalid PSTN message: PSTN message carrying IEs not according to national specific requirements.

Network Termination (NT): An equipment providing the network side at the ISDN user-network interface

NOTE: This term is used in this ETS to indicate network-terminating aspects of NT1 and NT2.

new provisioning variant: Identifier for the data set which was announced to the IUT to become the next

Protocol Implementation Conformance Statement (PICS): Refer to ISO/IEC 9646-1 [5].

valid PSTN message: PSTN message carrying IEs according to national specific requirements.

Figure 2 gives an overview of the various protocol entities of a V5.1 interface. Table 1 maps each protocol

All tests in the Control protocol (V5NWKAN/CTRL) test group are intended to verify as thoroughly as

possible the various procedures of the AN_control_protocol entity. Depending on provisioning the

AN_system_management: the startup, restart, re-provisioning and verification procedures of normal

AN_control_protocol: the normal and exceptional procedures of the AN_control_protocol are verified in

values are not verified (e.g. the control function ID). The error handling procedures are verified in

AN_PSTN_user_port: the blocking, blocking request and co-ordinated unblocking procedures of the

AN_PSTN_user_port_FSM are verified in the test group V5NWKAN/CTRL/BV/PORT/PSTN. The

interworking of the AN_PSTN_user_port_FSM and the AN_PSTN_protocol entity is tested via the

AN_ISDN-BA_user_port: the blocking, blocking request, co-ordinated unblocking and activation/

deactivation procedures of the AN_ISDN-BA_user_port_FSM are verified in the test group

All tests in the PSTN protocol (V5NWKAN/PSTN) test group are intended to verify as thoroughly as

The IT test subgroup contains a basic set of TPs which assures that there is a sufficient conformance for

Capability testing provides a limited testing to ascertain the capabilities stated in the PICS can be

Predefined state transitions are considered as valid. The test purpose in the valid behaviour test subgroup

cover as far as reasonable the verification of the normal and exceptional procedures of the various FSMs.

A valid test is a test where the message sequence and the message contents is considered as valid (no

This test subgroup is intended to verify that the IUT is able to react properly in the case an inopportune

protocol event occurring. Such an event is syntactically correct but occurs when it is not expected and an

This test subgroup is intended to verify that the IUT is able to react properly having received an invalid

PDU. An invalid PDU is defined as a syntactically incorrect message and therefore an error indication is

Different timers and counters are defined to supervise the various state transitions. This test subgroup is

intended to verify that the Finite State Machine (FSM) is reacting properly to an expiry of one of the timers

General dynamic behaviours are described in test steps which can be called from all ATCs within the

The following subclauses identify the test steps used in the ATS. In general, each test step represents a

state transition. For example in the PSTN protocol, PSTN_AN1_2 is the test step which brings the AN

PSTN_protocol_FSM from PSTN_path_state AN1 to PSTN_path_state AN2. The state transitions are

declared in the parenthesis (originating state - destination state) which follow the test step names.

STARTUP startup the V5.1 interface and put the IUT into the initial state as defined in subclause

CTRL state transitions used to preamble and postamble the Control protocol before a test