Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate modification by the connection owner; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Develop part 6 (ATS&PIXIT for the network) of EN 301 003

Širokopasovno digitalno omrežje z integriranimi storitvami (B-ISDN) - Protokol digitalne naročniške signalizacije št. 2 (DSS2) - Karakteristike zveze - Prilagajanje temenske celične hitrosti pri lastniku zveze - 6. del: Abstraktni preskušalni niz (ATS) in dodatna informacija za preskušanje delne izvedbe protokola (PIXIT) - Proforma specifikacija za omrežje

General Information

Status
Published
Publication Date
30-Jun-2005
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2005
Due Date
01-Jul-2005
Completion Date
01-Jul-2005
Mandate

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SLOVENSKI STANDARD
SIST EN 301 003-6 V1.1.3:2005
01-julij-2005
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Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling

System No. two (DSS2) protocol; Connection characteristics; Peak cell rate modification

by the connection owner; Part 6: Abstract Test Suite (ATS) and partial Protocol

Implementation eXtra Information for Testing (PIXIT) proforma specification for the

network
Ta slovenski standard je istoveten z: EN 301 003-6 Version 1.1.3
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 301 003-6 V1.1.3:2005 en

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

---------------------- Page: 1 ----------------------
SIST EN 301 003-6 V1.1.3:2005
---------------------- Page: 2 ----------------------
SIST EN 301 003-6 V1.1.3:2005
ETSI EN 301 003-6 V1.1.3 (1999-11)
European Standard (Telecommunications series)
Broadband Integrated Services Digital Network (B-ISDN);
Digital Subscriber Signalling System No. two (DSS2) protocol;
Connection characteristics;
Peak cell rate modification by the connection owner;
Part 6: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT)
proforma specification for the network
---------------------- Page: 3 ----------------------
SIST EN 301 003-6 V1.1.3:2005
2 ETSI EN 301 003-6 V1.1.3 (1999-11)
Reference
DEN/SPS-05152-6 (9adi0ie0.PDF)
Keywords
ATM, ATS, B-ISDN, broadband, DSS2, ISDN,
network, PIXIT, UNI
ETSI
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Internet
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Individual copies of this ETSI deliverable
can be downloaded from
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If you find errors in the present document, send your
comment to: editor@etsi.fr
Important notice

This ETSI deliverable 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 should be the printing on ETSI printers of the PDF version kept on a specific network

drive within ETSI Secretariat.
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 1999.
All rights reserved.
ETSI
---------------------- Page: 4 ----------------------
SIST EN 301 003-6 V1.1.3:2005
3 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 301 003-1.............................................................................................................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................................................................................................................................10

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..............................................................................................................................15

A.7 Observations...........................................................................................................................................16

Annex B (normative): Partial PIXIT proforma................................................................................17

B.1 Identification summary ..........................................................................................................................17

B.2 Abstract test suite summary ...................................................................................................................17

B.3 Test laboratory .......................................................................................................................................17

B.4 Client (of the Test Laboratory) ..............................................................................................................18

B.5 SUT ........................................................................................................................................................18

B.6 Protocol information ..............................................................................................................................19

B.6.1 Protocol identification ......................................................................................................................................19

B.6.2 Configuration to be tested ................................................................................................................................19

B.6.3 Test management timers...................................................................................................................................19

B.6.4 Parameter Values..............................................................................................................................................20

ETSI
---------------------- Page: 5 ----------------------
SIST EN 301 003-6 V1.1.3:2005
4 ETSI EN 301 003-6 V1.1.3 (1999-11)

Annex C (normative): Abstract Test Suite (ATS).............................................................................21

C.1 The TTCN Graphical form (TTCN.GR)................................................................................................21

C.2 The TTCN Machine Processable form (TTCN.MP) .............................................................................21

Bibliography.....................................................................................................................................................22

History..............................................................................................................................................................23

ETSI
---------------------- Page: 6 ----------------------
SIST EN 301 003-6 V1.1.3:2005
5 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 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://www.etsi.org/ipr).

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 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 Signalling

Protocol and Switching (SPS).

The present document is part 6 of a multi-part standard covering the Broadband Integrated Services Digital Network

(B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate

modification by the connection owner, as described below:

Part 1: "Protocol specification [ITU-T Recommendation Q.2963.1 (1996), 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 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: 26 November 1999
Date of latest announcement of this EN (doa): 29 February 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2000
Date of withdrawal of any conflicting National Standard (dow): 31 August 2000
ETSI
---------------------- Page: 7 ----------------------
SIST EN 301 003-6 V1.1.3:2005
6 ETSI EN 301 003-6 V1.1.3 (1999-11)
1 Scope

The present document specifies the network Abstract Test Suite (ATS) for the T reference point or coincident S and

B B

T reference point (as defined in ITU-T Recommendation I.413 [11]) of implementations conforming to the standards

for the signalling user-network layer 3 specification for Peak cell rate modification by the connection owner of the

Digital Subscriber Signalling System No. two (DSS2) protocol for the pan-European Broadband Integrated Services

Digital Network (B-ISDN), EN 301 003-1 [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 T reference point or coincident S and T reference point of implementations conforming to

B B B
EN 301 003-1 [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, edition number, version number, etc.) or non-

specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.

• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same

number.

[1] EN 301 003-1 (V1.1): "Broadband Integrated Services Digital Network (B-ISDN); Digital

Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate

modification by the connection owner; Part 1: Protocol specification [ITU-T
Recommendation Q.2963.1 (1996), modified]".

[2] EN 301 003-2 (V1.1): "Broadband Integrated Services Digital Network (B-ISDN); Digital

Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate

modification by the connection owner; Part 2: Protocol Implementation Conformance Statement

(PICS) proforma specification".

[3] EN 301 003-5 (V1.1): "Broadband Integrated Services Digital Network (B-ISDN); Digital

Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate

modification by the connection owner; Part 5: Test Suite Structure and Test Purposes (TSS&TP)

specification for the network".

[4] 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]".

[5] 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; Part 2: Protocol Implementation Conformance Statement (PICS)

proforma specification".

[6] ISO/IEC 9646-1 (1994): "Information technology - Open Systems Interconnection - Conformance

testing methodology and framework - Part 1: General concepts".

[7] ISO/IEC 9646-2 (1994): "Information technology - Open Systems Interconnection - Conformance

testing methodology and framework - Part 2: Abstract Test Suite specification".
ETSI
---------------------- Page: 8 ----------------------
SIST EN 301 003-6 V1.1.3:2005
7 ETSI EN 301 003-6 V1.1.3 (1999-11)

[8] ISO/IEC 9646-3 (1998): "Information technology - Open Systems Interconnection - Conformance

testing methodology and framework - Part 3: The Tree and Tabular Combined Notation (TTCN)".

[9] ISO/IEC 9646-4 (1994): "Information technology - Open Systems Interconnection - Conformance

testing methodology and framework - Part 4: Test realization".

[10] ISO/IEC 9646-5 (1994): "Information technology - Open Systems Interconnection - Conformance

testing methodology and framework - Part 5: Requirements on test laboratories and clients for the

conformance assessment process".
[11] ITU-T Recommendation I.413 (1993): "B-ISDN user-network interface".
3 Definitions and abbreviations
3.1 Definitions

For the purposes of the present document, the following definitions apply, in addition to those given in

EN 301 003-1 [1] and EN 300 443-1 [4].
3.1.1 Definitions related to conformance testing
abstract test case: refer to ISO/IEC 9646-1 [6]
Abstract Test Method (ATM): refer to ISO/IEC 9646-1 [6]
Abstract Test Suite (ATS): refer to ISO/IEC 9646-1 [6]
Implementation Under Test (IUT): refer to ISO/IEC 9646-1 [6]
System Under Test (SUT): see ISO/IEC 9646-1 [6]
UpperTester(UT): see ISO/IEC 9646-1 [6]
lower tester: refer to ISO/IEC 9646-1 [6]

Protocol Implementation Conformance Statement (PICS): refer to ISO/IEC 9646-1 [6]

PICS proforma: refer to ISO/IEC 9646-1 [6]

Protocol Implementation eXtra Information for Testing (PIXIT): refer to ISO/IEC 9646-1 [6]

PIXIT proforma: refer to ISO/IEC 9646-1 [6]
Test Purpose (TP): refer to ISO/IEC 9646-1 [6]
Point of Control and Observation (PCO): see ISO/IEC 9646-1 [6]
3.1.2 Definitions related to EN 301 003-1

user: DSS2 protocol entity at the User side of the user-network interface where a T reference point or coincident S

B B
and T reference point applies

user (S /T ): DSS2 protocol entity at the User side of the user-network interface where a coincident S and T

B B B B
reference point applies

user (T ): DSS2 protocol entity at the User side of the user-network interface where a T reference point applies (user

B B
is a private ISDN)
ETSI
---------------------- Page: 9 ----------------------
SIST EN 301 003-6 V1.1.3:2005
8 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 Coordination Messages
DSS2 Digital Subscriber Signalling System No. two
ExTS Executable Test Suite
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
MTC Main Test Component
PCO Point of Control and Observation
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
PTC Parallel Test Components
SUT System Under Test
TP Test Purpose
TSS Test Suite Structure
TTCN Tree and Tabular Combined Notation
UT Upper Tester
VCI Virtual Channel Identifier
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 T reference point or coincident S and T reference point applies. Thus the IUT is the network DSS2

B B B

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.
ETSI
---------------------- Page: 10 ----------------------
SIST EN 301 003-6 V1.1.3:2005
9 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 coordinates activities by exchanging Coordination

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.
MTC SUT PTC1
Layer 3 IUT Layer 3
 L0     L1  
Layer 2 Layer 2
 
       
Layer 1 Layer 1
Service provider
Figure 2: Combination of the remote and multi-party test methods
ETSI
---------------------- Page: 11 ----------------------
SIST EN 301 003-6 V1.1.3:2005
10 ETSI EN 301 003-6 V1.1.3 (1999-11)

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 (see EN 301 003-5 [3]) 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 [10], to

produce a PCTR conformant with the PCTR template given in Annex B of ISO/IEC 9646-4 [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.

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 [9], 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 [10], 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.
ETSI
---------------------- Page: 12 ----------------------
SIST EN 301 003-6 V1.1.3:2005
11 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 [9]. 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 [10].

A test laboratory which claims to conform to this ATS specification shall use an MOT which conforms to this ATS.

ETSI
---------------------- Page: 13 ----------------------
SIST EN 301 003-6 V1.1.3:2005
12 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 301 003-1
PICS:
Previous PCTRs (if any)
A.1.3 Testing environment
PIXIT Reference number:
ATS Specification: EN 301 003-6
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):
ETSI
---------------------- Page: 14 ----------------------
SIST EN 301 003-6 V1.1.3:2005
13 ETSI EN 301 003-6 V1.1.3 (1999-11)
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 report.

.........................................................................................................................................................................................

.........................................................................................................................................................................................

.........................................................................................................................................................................................

.........................................................................................................................................................................................

.........................................................................................................................................................................................

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.

.........................................................................................................................................................................................

.........................................................................................

...

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