ETSI EN 300 443-5 V1.2.1 (2000-10)

SLOVENSKI STANDARD
SIST EN 300 443-5 V1.2.1:2003
01-december-2003
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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 5: Test Suite Structure and Test Purposes (TSS&TP)
specification for the network
Ta slovenski standard je istoveten z: EN 300 443-5 Version 1.2.1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 443-5 V1.2.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 443-5 V1.2.1:2003

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SIST EN 300 443-5 V1.2.1:2003
ETSI EN 300 443-5 V1.2.1 (2000-10)
European Standard (Telecommunications series)
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 5: Test Suite Structure and Test Purposes (TSS&TP)
specification for the network

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SIST EN 300 443-5 V1.2.1:2003
2 ETSI EN 300 443-5 V1.2.1 (2000-10)
Reference
REN/SPAN-05143-5
Keywords
BC, B-ISDN, broadband, DSS2, ISDN, layer 3,
network, TSS&TP, UNI
ETSI
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Copyright Notification
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The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 443-5 V1.2.1:2003
3 ETSI EN 300 443-5 V1.2.1 (2000-10)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope .6
2 References .6
3 Definitions and abbreviations.6
3.1 Definitions.6
3.1.1 Definitions related to conformance testing .6
3.1.2 Definitions related to EN 300 443-1.7
3.2 Abbreviations .7
4 Test Suite Structure (TSS).8
5 Test Purposes (TP) .9
5.1 Introduction .9
5.1.1 TP naming convention.9
5.1.2 Source of TP definition.9
5.1.3 Test strategy.9
5.1.4 Test of call states .9
5.2 TPs for the basic call/bearer control, layer 3, network .10
5.2.1 Signalling procedures at the coincident S /T and at the T reference points.10
B B B
5.2.1.1 Call/connection establishment at the originating interface.10
5.2.1.1.1 Connection identifier (VPCI/VCI) allocation/selection (01).10
5.2.1.1.1.1 Associated signalling (02).10
5.2.1.1.1.2 Non-associated signalling (03).11
5.2.1.1.2 QOS and traffic parameter selection procedures (04).12
5.2.1.1.3 Invalid call/connection control information (05).12
5.2.1.1.4 Call/connection proceeding (06).12
5.2.1.1.5 Call/connection confirmation indication (07).13
5.2.1.1.6 Call/connection acceptance (08).13
5.2.1.1.7 Call/connection rejection (09) .13
5.2.1.1.8 Transit network selection (10).14
5.2.1.2 Call/connection establishment at the destination interface.14
5.2.1.2.1 Incoming call/connection request (11) .14
5.2.1.2.2 Connection identifier (VPCI/VCI) allocation/selection (12).15
5.2.1.2.2.1 Associated signalling (13).15
5.2.1.2.2.2 Non-associated signalling (14).15
5.2.1.2.3 Call/connection confirmation (15).16
5.2.1.2.4 Call/connection acceptance (16).17
5.2.1.3 Call/connection clearing.17
5.2.1.3.1 Exception conditions (17).17
5.2.1.3.2 Clearing initiated by the user (18) .17
5.2.1.3.3 Clearing initiated by the network (19).18
5.2.1.3.4 Clear collision (20).18
5.2.1.4 Restart procedure .19
5.2.1.4.1 Sending RESTART (21).19
5.2.1.4.2 Receipt of RESTART (22) .19
5.2.1.4.3 Remote interface (23).22
5.2.1.5 Handling of error conditions .22
5.2.1.5.1 Error handling in N0 (24) .22
5.2.1.5.2 Error handling in N3 (25) .26
5.2.1.5.3 Error handling in N4 (26) .27
5.2.1.5.4 Error handling in N6 (27) .29
5.2.1.5.5 Error handling in N7 (28) .32
5.2.1.5.6 Error handling in N9 (29) .34
5.2.1.5.7 Error handling in N10 - incoming call (30) .37
ETSI

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SIST EN 300 443-5 V1.2.1:2003
4 ETSI EN 300 443-5 V1.2.1 (2000-10)
5.2.1.5.8 Error handling in N10 - outgoing call (31).40
5.2.1.5.9 Error handling in N12 - incoming call (32) .44
5.2.1.5.10 Error handling in N12 - outgoing call (33).46
5.2.1.5.11 Error handling in R0 (34) .48
5.2.1.5.12 Error handling in R1 (35) .51
5.2.1.6 Notification procedures (36) .53
5.2.2 Signalling procedures for interworking between N-ISDN and B-ISDN.54
5.2.2.1 Interworking N-ISDN -> B-ISDN (37).54
5.2.2.2 Interworking B-ISDN -> N-ISDN (38).54
6 Compliance.55
7 Requirements for a comprehensive testing service .55
Bibliography.56
History .57
ETSI

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SIST EN 300 443-5 V1.2.1:2003
5 ETSI EN 300 443-5 V1.2.1 (2000-10)
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://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 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 standard covering the Digital Subscriber Signalling System No. 2 (DSS2)
protocol specification for the B-ISDN user-network interface layer 3 specification for basic call/bearer control, as
described 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: 6 October 2000
Date of latest announcement of this EN (doa): 31 January 2001
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 July 2001
Date of withdrawal of any conflicting National Standard (dow): 31 July 2001
ETSI

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SIST EN 300 443-5 V1.2.1:2003
6 ETSI EN 300 443-5 V1.2.1 (2000-10)
1 Scope
The present document specifies the network Test Suite Structure and Test Purposes (TSS&TP) for the T reference
B
point or coincident S and T reference point (as defined in ITU-T Recommendation I.413 [5]) of implementations
B B
conforming to the standards for the signalling user-network layer 3 specification for basic call/bearer control of the
Digital Subscriber Signalling System No. two (DSS2) protocol for the pan-European Broadband Integrated Services
Digital Network (B-ISDN), EN 300 443-1 [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, 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] ETSI EN 300 443-1 (V1.3): "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]".
[2] ETSI EN 300 443-2 (V1.3): "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".
[3] ISO/IEC 9646-1: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 1: General concepts".
[4] ISO/IEC 9646-2: "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 ETS 300 406: "Methods for Testing and Specification (MTS); Protocol and profile
conformance testing specifications; Standardization methodology".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in EN 300 443-1 [1] and the following apply:
3.1.1 Definitions related to conformance testing
abstract test case: refer to ISO/IEC 9646-1 [3]
ETSI

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SIST EN 300 443-5 V1.2.1:2003
7 ETSI EN 300 443-5 V1.2.1 (2000-10)
Abstract Test Method (ATM): refer to ISO/IEC 9646-1 [3]
Abstract Test Suite (ATS): refer to ISO/IEC 9646-1 [3]
Implementation Under Test (IUT): refer to ISO/IEC 9646-1 [3]
lower tester: refer to ISO/IEC 9646-1 [3]
Protocol Implementation Conformance Statement (PICS): refer to ISO/IEC 9646-1 [3]
PICS proforma: refer to ISO/IEC 9646-1 [3]
Protocol Implementation eXtra Information for Testing (PIXIT): refer to ISO/IEC 9646-1 [3]
PIXIT proforma: refer to ISO/IEC 9646-1 [3]
Test Purpose (TP): refer to ISO/IEC 9646-1 [3]
3.1.2 Definitions related to EN 300 443-1
network: DSS2 protocol entity at the Network side of the user-network interface where a T reference point or
B
coincident S and T reference point applies
B B
network (S /T ): DSS2 protocol entity at the Network side of the user-network interface where a coincident S and T
B B B B
reference point applies
network (T ): DSS2 protocol entity at the Network side of the user-network interface where a T reference point
B B
applies (user is the private ISDN)
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
DSS2 Digital Subscriber Signalling System No. two
IUT Implementation Under Test
N0 Null call state
N1 Call Initiated call state
N10 Active call state
N12 Release Indication call state
N2 Overlap Sending call state
N3 Outgoing Call Proceeding call state
N4 Call Delivered call state
N6 Call Present call state
N7 Call Received call state
N9 Incoming Call Proceeding call state
N-ISDN Narrowband Integrated Services Digital Network
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
Rest 0 Restart Null state
Rest 1 Restart Request state
Rest 2 Restart state
TP Test Purpose
TSS Test Suite Structure
VC Virtual Channel
VCI Virtual Channel Identifier
VP Virtual Path
VPC Virtual Path Connection
VPCI Virtual Path Connection Identifier
ETSI

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SIST EN 300 443-5 V1.2.1:2003
8 ETSI EN 300 443-5 V1.2.1 (2000-10)
4 Test Suite Structure (TSS)
Signalling procedures at the coincident S /T and at the T reference points
B B B
Call/connection establishment at the originating interface
Connection identifier (VPCI/VCI) allocation/selection .(01)
Associated signalling.(02)
Non-associated signalling.(03)
QOS and traffic parameters selection procedures .(04)
Invalid call/connection control information .(05)
Call/connection proceeding.(06)
Call/connection confirmation indication.(07)
Call/connection acceptance.(08)
Call/connection rejection .(09)
Transit network selection .(10)
Call/connection establishment at the destination interface
Incoming call/connection request.(11)
Connection identifier (VPCI/VCI) allocation/selection .(12)
Associated signalling.(13)
Non-associated signalling.(14)
Call/connection confirmation.(15)
Call/connection acceptance.(16)
Call/connection clearing
Exception conditions.(17)
Clearing initiated by the user .(18)
Clearing initiated by the network.(19)
Clear collision .(20)
Restart procedure
Sending RESTART.(21)
Receipt of RESTART .(22)
Remote user.(23)
Handling of error conditions
Error handling in N0 .(24)
Error handling in N3 .(25)
Error handling in N4 .(26)
Error handling in N6 .(27)
Error handling in N7 .(28)
Error handling in N9 .(29)
Error handling in N10 - incoming call .(30)
Error handling in N10 - outgoing call .(31)
Error handling in N12 - incoming call .(32)
Error handling in N12 - outgoing call .(33)
Error handling in Rest 0 .(34)
Error handling in Rest 1 .(35)
Notification procedures .(36)
Signalling procedures for interworking between N-ISDN and B-ISDN
Interworking N-ISDN -> B-ISDN.(37)
Interworking B-ISDN -> N-ISDN.(38)
Figure 1: Test suite structure
ETSI

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SIST EN 300 443-5 V1.2.1:2003
9 ETSI EN 300 443-5 V1.2.1 (2000-10)
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: __
= layer + type of IUT: "L3BN" for Layer 3Basic call/bearer control,
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 300 443-1 [1].
5.1.3 Test strategy
As the base standard EN 300 443-1 [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 300 443-2 [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 (ETS 300 406 [6]).
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 subclause 5.6.11 of EN 300 443-1 [1]. 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.
ETSI

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SIST EN 300 443-5 V1.2.1:2003
10 ETSI EN 300 443-5 V1.2.1 (2000-10)
5.2 TPs for the basic call/bearer control, layer 3, network
All PICS items referred to in this subclause are as specified in EN 300 443-2 [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 S /T and at the T reference
B B B
points
Test purposes for EN 300 443-1 [1] subclause 5.1.
5.2.1.1 Call/connection establishment at the originating interface
Test purposes for EN 300 443-1 [1] subclause 5.1.
5.2.1.1.1 Connection identifier (VPCI/VCI) allocation/selection (01)
Test purposes for EN 300 443-1 [1] subclause 5.1.2.
L3BN_01_01
Ensure that the IUT in N0, on receipt of a SETUP message (Connection identifier present, VP associated
signalling = VP associated signalling),
- sends a RELEASE COMPLETE message (Cause value = 36) and remains in N0.
Selection: Associated signalling at the originating side NOT supported. PICS: NOT MCn 1.1.
5.2.1.1.1.1 Associated signalling (02)
Test purposes for EN 300 443-1 [1] subclause 5.1.2.1.
Selection: Associated signalling at the originating side supported. PICS: MCn 1.1.
L3BN_02_01
Ensure th
...