ETSI EN 300 207-6 V3.1.1 (2001-11)

Integrated Services Digital Network (ISDN); Diversion supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

REN/SPAN-130226-6

Digitalno omrežje z integriranimi storitvami (ISDN) – Dopolnilne storitve: izsmeritev –Protokol digitalne naročniške signalizacije št. 1 (DSS1) – 6. del: Abstraktni preskušalni niz (ATS) in delna dodatna informacija za preskušanje izvedbe protokola (PIXIT) – Proforma specifikacija za omrežje

General Information

• Status: Published
• Publication Date: 19-Nov-2001
• Technical Committee: SPAN 13 - SPAN Peer-to-Peer Control Protocol (PTPCP)
• Current Stage: 12 - Completion
• Due Date: 23-Nov-2001
• Completion Date: 20-Nov-2001
• Ref Project: SIST EN 300 207-6 V3.1.1:2003 - Integrated Services Digital Network (ISDN); Diversion supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 300 207-6 V3.1.1:2003
01-december-2003
'LJLWDOQRRPUHåMH]LQWHJULUDQLPLVWRULWYDPL,6'1±'RSROQLOQHVWRULWYH
L]VPHULWHY±3URWRNROGLJLWDOQHQDURþQLãNHVLJQDOL]DFLMHãW'66±GHO
$EVWUDNWQLSUHVNXãDOQLQL]$76LQGHOQDGRGDWQDLQIRUPDFLMD]DSUHVNXãDQMH
L]YHGEHSURWRNROD3,;,7±3URIRUPDVSHFLILNDFLMD]DRPUHåMH
Integrated Services Digital Network (ISDN); Diversion supplementary services; Digital
Subscriber Signalling System No. one (DSS1) protocol; 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 300 207-6 Version 3.1.1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 207-6 V3.1.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 207-6 V3.1.1:2003

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SIST EN 300 207-6 V3.1.1:2003

ETSI EN 300 207-6 V3.1.1 (2001-11)
European Standard (Telecommunications series)

Integrated Services Digital Network (ISDN);
Diversion supplementary services;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 6: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT)
proforma specification for the network


�

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SIST EN 300 207-6 V3.1.1:2003
 2 ETSI EN 300 207-6 V3.1.1 (2001-11)



Reference
REN/SPAN-130226-6
Keywords
ATS, DSS1, ISDN, network, PIXIT,
supplementary service, testing
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© European Telecommunications Standards Institute 2001.
All rights reserved.

ETSI

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SIST EN 300 207-6 V3.1.1:2003
 3 ETSI EN 300 207-6 V3.1.1 (2001-11)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
3 Definitions and abbreviations.7
3.1 Definitions.7
3.2 Abbreviations.7
4 Abstract Test Method.8
4.1 CDIV network side ATS .8
4.2 SCF network side ATS.9
5 Untestable test purposes.9
6 ATS conventions.10
6.1 Version of TTCN used .10
6.2 Use of ASN.1.10
6.2.1 Situations where ASN.1 is used.10
6.2.2 Specification of encoding rules.10
6.3 Conventions for variables and parameters.11
7 ATS to TP map.12
8 PCTR conformance.12
9 PIXIT conformance.12
10 ATS conformance.13
11 Configurations required in testing.13
11.1 General.13
11.2 CDIV ATS.13
11.3 SCF ATS.16
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.19
A.1 Identification summary.19
A.1.1 Protocol conformance test report.19
A.1.2 IUT identification.19
A.1.3 Testing environment.20
A.1.4 Limits and reservations .20
A.1.5 Comments.20
A.2 IUT conformance status .20
A.3 Static conformance summary.20
A.4 Dynamic conformance summary.21
A.5 Static conformance review report.21
A.6 Test campaign report.21
A.6.1 Test campaign report for CDIV.21
A.6.2 Test campaign report for SCF .28
A.7 Observations.31
Annex B (normative): Partial PIXIT proforma.32
B.1 Identification summary.32
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 4 ETSI EN 300 207-6 V3.1.1 (2001-11)
B.2 Abstract test suite summary .32
B.3 Test laboratory.32
B.4 Client (of the test laboratory) .33
B.5 System Under Test (SUT) .33
B.6 Protocol information.34
B.6.1 Protocol identification.34
B.6.2 Parameter values.34
B.6.3 Configuration of IUT.35
B.6.3.1 Configuration of the IUT for CDIV testing .35
B.6.3.2 Configuration of the IUT for SCF testing.36
B.6.4 Parameter values.37
B.6.5 Timer values.38
B.6.6 Void.38
B.6.7 Interactions.38
B.7 Basic call PIXIT items .39
B.7.1 Parameter Values - Information element coding .39
Annex C (normative): Abstract Test Suite (ATS) .40
C.1 The TTCN Graphical form (TTCN.GR) .40
C.2 The TTCN Machine Processable form (TTCN.MP).40
History .41

ETSI

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SIST EN 300 207-6 V3.1.1:2003
 5 ETSI EN 300 207-6 V3.1.1 (2001-11)
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 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 6 of a multi-part deliverable covering the Digital Subscriber Signalling System No. one
(DSS1) protocol specification for the Integrated Services Digital Network (ISDN); Diversion supplementary services,
as identified below:
Part 1: "Protocol specification";
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: 16 November 2001
Date of latest announcement of this EN (doa): 28 February 2002
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2002
Date of withdrawal of any conflicting National Standard (dow): 31 August 2002

ETSI

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SIST EN 300 207-6 V3.1.1:2003
 6 ETSI EN 300 207-6 V3.1.1 (2001-11)
1 Scope
The present document specifies the Abstract Test Suites (ATS) and partial Protocol Implementation eXtra Information
for Testing (PIXIT) proforma for the Network side of the T reference point or coincident S and T reference point of
implementations conforming to the stage three standard for the diversion supplementary services for the pan-European
Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1)
protocol, EN 300 207-1 [1].
EN 300 207-5 [3] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT
proforma specification. 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 EN 300 207-1 [1].
The present document contains two ATSs for different parts of the protocol; one (CDIV) for Call Forwarding Busy,
Call Forwarding Unconditional, Call Forwarding No Response and Call Deflection and the other (SCF) for Selective
Call Forwarding Busy, Selective Call Forwarding Unconditional and Selective Call Forwarding No Response. Common
parts of the protocol are covered by the CDIV ATS.
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.
[1] ETSI EN 300 207-1 (V2.0.1): "Integrated Services Digital Network (ISDN); Diversion
supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[2] ETSI EN 300 207-2 (V2.0.1): "Integrated Services Digital Network (ISDN); Diversion
supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification".
[3] ETSI EN 300 207-5 (V3.1.1): "Integrated Services Digital Network (ISDN); Diversion
supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network".
[4] ETSI EN 300 196-1: "Integrated Services Digital Network (ISDN); Generic functional protocol for
the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
NOTE: EN 300 207-1 [1] has an undated reference to EN 300 196-1 [4]. Some ASN.1 definitions from
EN 300 196-1 [4] are referenced by EN 300 207-1 and are reproduced in the TTCN ATSs in the present
document. The versions of these definitions used in the present document are based on those in
EN 300 196-1 (V1.3.2). There is a technical change in the definition of PartyNumber in EN 300 196-1
(V1.3.2) which has no impact on the present document.
[5] Void.
[6] Void.
[7] Void.
[8] ISO/IEC 9646-1 (1994): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 1: General concepts".
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 7 ETSI EN 300 207-6 V3.1.1 (2001-11)
[9] ISO/IEC 9646-2 (1994): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 2: Abstract test suite specification".
[10] ISO/IEC 9646-3 (1998): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 3: The Tree and Tabular Combined Notation (TTCN)".
[11] ISO/IEC 9646-4 (1994): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 4: Test realization".
[12] 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".
[13] ISO/IEC 8825-1: "Information technology - ASN.1 encoding rules: Specification of Basic
Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules
(DER)". (See also ITU-T Recommendation X.690).
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in ISO/IEC 9646-1 [8] apply.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ATS Abstract Test Suite
BER Basic Encoding Rules
CD Call Diversion
CDIV Call DIVersion (this is used to refer collectively to the CD, CFB, CFNR and CFU services)
CFB Call Forward Busy
CFNR Call Forward No Reply
CFU Call Forward Unconditional
ETS Executable Test Suite
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
MTC Main Test Component
PCO Point of Control and Observation
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
PTC Parallel Test Component
SCF Selective Call Forwarding (this is used to refer collectively to the SCFB, SCFNR and SCFU
services)
SUT System Under Test
TP Test Purpose
TTCN Tree and Tabular Combined Notation
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 8 ETSI EN 300 207-6 V3.1.1 (2001-11)
4 Abstract Test Method
4.1 CDIV network side ATS
The multi-party test method is applied for the CDIV network side ATS.
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 DSS1
protocol entity at a particular user-network interface and is not the whole network.
In practice the behaviour at a single user-network interface does not occur in isolation, but depends on the activity at
other user-network interfaces. Therefore a multi-party test method is used.
The general configuration used is shown in figure 1. In this ATS the PTCs act as slaves to the MTC; all active
behaviour at the PTCs is initiated by CMs sent by the MTC and all verdicts are assigned by the MTC. Not all
components are used in every test case.

MTC     PTC3
  CPA3

PTC2

  CPA2

PTC1

  CPA1
 PCO L0  PCO L1 PCO L2 PCO L3
IUT  Interface to other Interface to other Interface to other
user 1 User 2 User 3


Network


Figure 1: Multi-party test method
For each test case the interface to which the MTC connected is the IUT, which may be the interface of the calling user,
served user or diverted-to user depending on the test group. PTCs are connected to any other interfaces where activity is
necessary. The association between the network interfaces and PTCs that is typically used is described in table 1.
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 9 ETSI EN 300 207-6 V3.1.1 (2001-11)
Table 1: Association of test components with interfaces
Calling user (First) served Second served Diverted-to
user user user
Calling user tests - one MTC PTC1 PTC2
diversion
Calling user tests - two MTC PTC1 PTC2 PTC3
diversions
Served user tests - activation, MTC
deactivation and interrogation
Served user tests - one PTC1 MTC PTC2 (see note)
diversion
Served user tests - two PTC1 PTC2 MTC PTC3
diversions
Called user tests - one PTC1 PTC2 MTC
diversion
Called user tests - two PTC3 PTC1 PTC2 MTC
diversions
NOTE: In some TCs PCO L2 is connected to the interface of the diverted-to user but no PTC is
associated with that PCO.

4.2 SCF network side ATS
The remote test method is applied for the SCF network side ATS as illustrated in figure 2.
The parts of the protocol specific to SCF (i.e. activation, deactivation and interrogation of the SCF services) do not
involve any activity at interfaces of users other than the served user and therefore it is not appropriate to use a
multi-party test method.
A Point of Control and Observation (PCO) resides at the service access point between layers 2 and 3 in the test system.
This PCO is named "L" (for Lower). The L PCO is used to control and observe the behaviour of the Implementation
Under Test (IUT) and test case verdicts are assigned depending on the behaviour observed at this PCO.
Within test cases all communication with the IUT is via PCO L. However in some cases informal test co-ordination is
performed by re-configuration of the IUT between test cases.
Tester SUT




LT IUT
PCO L

Layer 2 Layer 2
Layer 1 Layer 1
Service provider

Figure 2: Remote test method
5 Untestable test purposes
There are no untestable test purposes associated with these ATSs.
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 10 ETSI EN 300 207-6 V3.1.1 (2001-11)
6 ATS conventions
6.1 Version of TTCN used
The version of TTCN used is that defined in ISO/IEC 9646-3 [10].
6.2 Use of ASN.1
6.2.1 Situations where ASN.1 is used
ASN.1 has been used for three major reasons. First, types defined in ASN.1 can model problems that "pure" TTCN
cannot. For instance, data structures modelling ordered or unordered sequences of data are preferably defined in ASN.1.
Second, ASN.1 provides a better restriction mechanism for type definitions by using sub-type definitions. Third, it is
necessary to use ASN.1 to reproduce the type definitions for remote operation components specified in the base
standards in ASN.1.
The possibility to use TTCN and ASN.1 in combination is used, i.e. referring to an ASN.1 type from a TTCN type.
6.2.2 Specification of encoding rules
There is a variation in the encoding rules applied to ASN.1 types and constraints specified in this ATS and therefore a
mechanism is needed to differentiate the encoding rules. However the mechanism specified in ISO/IEC 9646-3 [10]
does not facilitate definition of the encoding rules as needed for this ATS. A solution is therefore used which is broadly
in the spirit of ISO/IEC 9646-3 [10] in which comment fields have been used as a means of encoding rules.
For ASN.1 used in this ATS, two variations of encoding rules are used. One is the commonly known Basic Encoding
Rules (BER) as specified in ISO/IEC 8825-1 [13]. In the second case the encoding is according to ISDN, i.e. the ASN.1
data types are a representation of structures contained within the ISDN specification (basic call, Generic functional
protocol or individual supplementary service). For example, if octets of an information element are specified in ASN.1
as a SEQUENCE then this should be encoded in an Executable Test Suite (ETS) as any other ISDN information
element specified using tabular TTCN. This ISDN encoding variation is the default encoding rule for this ATS. This
means that all ASN.1 constraint tables are encoded using ISDN (non-BER) encoding unless stated otherwise. BER
encoding should never be applied to an ASN.1 constraint where BER encoding has not been specified. This encoding
rule is sometimes named "Direct Encoding".
For BER encoding, an indication is given in the comments field of the table header. For this ATS such indications
appear in the ASN.1 type constraint declaration tables only. In the first line of the table header comment field, the
notation "ASN1_Encoding: BER" is used.
Note that within BER, there are a number of variations for the encoding of lengths of fields. According to
EN 300 196-1 [4], an IUT should be able to interpret all length forms within BER for received PDUs. When sending
PDUs containing BER encoding, EN 300 196-1 [4] gives guidelines but makes no restrictions on the length forms
within BER which an IUT may apply.
In this particular ATS all ASN.1 type constraints which are of type "Component" are to be encoded using BER.
ETSI

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SIST EN 300 207-6 V3.1.1:2003
 11 ETSI EN 300 207-6 V3.1.1 (2001-11)
Table 2: ASN.1 type constraint declaration showing use of encoding variation
ASN.1 Type Constraint Declaration
Constraint Name : Beg3PTYinv
ASN.1 Type  : Component
Derivation Path :
Comments  : ASN1_Encoding: BER
    Receive component: Begin3PTY invoke component
Description
begin3PTY_Components
 begin3PTY_InvokeComp
  { invokeID      ? ,
   operation_value  localValue  4}
Detailed comments:

6.3 Conventions for variables and parameters
This is applicable to the CDIV ATS only (no calls are used in the SCF ATS).
MTCA

call reference CREF1
B channel (basic) bch_num1
channel number (primary) CH_NUM1

PCO L0 IPN0, LIPN0

PTC1

call reference P1_CREF
B channel (basic) P1_bch_num
channel number (primary) P1_CH_NUM

PCO L1 IPN1, LIPN1

ETSI

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SIST EN 300 207-6 V3.1.1:2003
 12 ETSI EN 300 207-6 V3.1.1 (2001-11)
PTC2

call reference P2_CREF
B channel (basic) P2_bch_num
channel number (primary) P2_CH_NUM

PCO L2 IPN2, LIPN2

PTC3

call reference P3_CREF
B channel (basic) P3_bch_num
channel number (primary) P3_CH_NUM

PCO L3 IPN3, LIPN3

7 ATS to TP map
The identifiers used for the TPs are reused as test case names. Thus there is a straightforward one-to-one mapping.
8 PCTR conformance
A test laboratory, when requested by a client to produce a PCTR, is required, as specified in ISO/IEC 9646-5 [12], to
produce a PCTR conformant with the PCTR template given in annex B of ISO/IEC 9646-5 [12].
Furthermore, a test laboratory, offering testing for either 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.
A PCTR which conforms to this PCTR proforma specification shall preserve the content and ordering of the clauses
contained in annex A except that either A.6.1 or A.6.2 may be omitted. 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 reta
...