SIST EN 301 008:2000

SLOVENSKI STANDARD
3SIST EN 301 008:
01-december-
Digitalno omrežje z integriranimi storitvami (ISDN) - Signalizacija št. 7 - Krmilni del
signalizacijske zveze (SCCP) - Preskušalna specifikacija medsebojne
obratovalnosti
Integrated Services Digital Network (ISDN); Signalling System No.7; Signalling
Connection Control Part (SCCP); Interoperability test specification
Ta slovenski standard je istoveten z: EN 301 008 V1.1.2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
3SIST EN 301 008: en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 301 008 V1.1.2 (1998-05)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Signalling System No.7;
Signalling Connection Control Part (SCCP);
Interoperability test specification

2 EN 301 008 V1.1.2 (1998-05)
Reference
DEN/SPS-02050 (9c000idc.PDF)
Keywords
ISDN, SS7, SCCP, testing
ETSI
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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 1998.
All rights reserved.
ETSI
3 EN 301 008 V1.1.2 (1998-05)
Contents
Intellectual Property Rights.4
Foreword .4
1 Scope.5
2 References.5
2.1 Normative references. 5
2.2 Informative references . 5
3 Abbreviations.6
4 SCCP test specification.6
4.1 Introduction. 6
4.2 Network and implementation dependency considerations . 7
4.3 Test network configuration . 7
4.4 Reference specification. 7
4.5 Test list . 7
4.5.1 GT routing tests. 8
4.5.2 Connectionless protocol class tests . 8
4.6 Test tables. 9
History.24
ETSI
4 EN 301 008 V1.1.2 (1998-05)
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 ETR 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of
ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI
Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).
Pursuant to the ETSI Interim 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 ETR 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
Protocols and Switching (SPS).
National transposition dates
Date of adoption of this EN: 3 April 1998
Date of latest announcement of this EN (doa): 31 August 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 february 1999
Date of withdrawal of any conflicting National Standard (dow): 28 February 1999
ETSI
5 EN 301 008 V1.1.2 (1998-05)
1 Scope
The present document specifies interoperability testing between nodes meeting the requirements of ITU-T
Recommendations Q.711 to Q.714 [2] as modified by ETS 300 009-1 [1]. The present document may optionally also be
applied within national networks and implementations of earlier versions of ETS 300 009 and the ITU-T
Recommendations.
The present document is not meant to restrict national networks. The tests in the present document form a basic set of
interoperability tests, and are used in gaining confidence that implementations of the Signalling Connection Control Part
(SCCP) can interwork.
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, subsequent revisions do apply.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
2.1 Normative references
[1] ETS 300 009-1 (1996): "Integrated Services Digital Network (ISDN); Signalling System No.7;
Signalling Connection Control Part (SCCP) (connectionless and connection-oriented class 2) to
support international interconnection; Part 1: Protocol specification [ITU-T Recommendations
Q.711 to Q.714 and Q.716 (1993), modified]".
[2] ITU-T Recommendations Q.711 to Q.714 (1993): "Signalling Connection Control Part (SCCP)".
2.2 Informative references
[3] ITU-T Recommendation Q.786 (1993): "SCCP Test Specification".
ETSI
6 EN 301 008 V1.1.2 (1998-05)
3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
DPC Destination Point Code
DT1 Data Form 1 message
GT Global Title
GTAI Global Title Address Information
MTP Message Transfer Part
NI Network Indicator
OPC Origination Point Code
PC Point Code
SCCP Signalling Connection Control Part
SIO Service Information Octet
SP Signalling Point
SSA SubSystem Allowed message
SSN SubSystem Number
SST Subsystem Status Test message
UDT UnitData message
UDTS UnitData Service message
UPU User Part Unavailable
XUDT Extended Unitdata message
XUDTS Extended UnitData Service message
4 SCCP test specification
Conformance and performance tests are not included in the present document.
4.1 Introduction
The function of interoperability testing is to confirm that different implementations, each of which conforms to
ETS 300 009-1 [1], can interwork. These interoperability tests apply in the international network but may also be
applied in national networks. Successful conformance or validation testing of SCCP itself, SCCP applications and
Message Transfer Part (MTP) is a pre-requisite of interoperability testing. It is recommended that interoperability testing
is performed on signalling nodes that are not in service.
Interoperability testing may require the use of a monitor to check the operation of the signalling node(s) under test. The
specification of this monitor is not covered by the present document although the general requirements are that the
equipment is capable of capturing all data on the signalling link, and preferably be able to decode the information
captured into SCCP messages.
The tests in the present document are only a basic set in gaining confidence in the interoperability of SCCP
implementations. Specific interconnections may require more interoperability testing than specified here. The specific
range of tests performed between nodes is subject to bilateral or multilateral agreement and also dependent on the
functionality of the implementations under test. The tests are shown in one direction of testing, thus they should be
repeated in the reverse direction for completeness.
ETSI
7 EN 301 008 V1.1.2 (1998-05)
4.2 Network and implementation dependency considerations
SCCP applications may be external to the nodes under test (e.g. external testers).
Where the receiving node is a stand alone SCCP relay Sub System Number (SSN) routing to it cannot be used. In this
case tests using SSN routing are not applicable.
In some implementations SCCP and MTP availability are inseparable (e.g. in the case where MTP and SCCP are
handled together). In such cases tests that require the availability status of SCCP and MTP to be different cannot be run.
If the nodes under test are in service it is inadvisable to run tests that require the MTP or SCCP to be unavailable.
4.3 Test network configuration
The following network configuration is intended to show a typical international SCCP network scenario and is the basis
of all the tests in the present document. In practice, in some cases, node B (i.e. a "stand alone" SCCP relay node) may
not exist. In these cases the relay functionality part of the tests may still be applied but would relate to international
gateway nodes A and C.
National Network 2
National Network 1 International Network
SCCP Messages SCCP Messages
SCCP SCCP SCCP
MTP MTP
MTP
MTP MTP
(Nat. PC xx) (Int. PC A) (Int. PC B) (Int. PC C) (Nat. PC xx)
International SCCP Relay International G/W
International G/W
(Node B) (Node C)
(Node A)
Figure 1
4.4 Reference specification
The SCCP is described in the ETS 300 009-1 [1].
4.5 Test list
NOTE: A number of the tests given in the present document make reference to UnitData (Service) message
(UDT(S)) messages. Where supported by all the nodes in the test, Extended UnitData (Service) message
(XUDT(S)) messages may be employed as an alternative.
ETSI
8 EN 301 008 V1.1.2 (1998-05)
4.5.1 GT routing tests
Test Number 1
To verify correct Global Title (GT) translation and a correctly functioning signalling route exists between nodes under
test. The primary purpose of this test is to give confidence that a signalling relationship exists between the nodes under
test. Specific signalling functionality is tested by the other tests.
Test Number 2
To verify correct GT translation, message return and SCCP management functionality following temporary SCCP
unavailability.
Test Number 3
To verify that UDTS is not returned when GT translates to an inaccessible Destination Point Code (DPC) and/or
unavailable SSN/SCCP and the return on error option is not set.
Test Number 4
To verify that UDTS is returned when the GT translates to an inaccessible DPC and/or unavailable SSN/SCCP and the
return on error option is set.
Test Number 5
To verify that UDTS is returned when the GT is of a type that cannot be translated and the return on error option is set.
Test Number 6
To verify that UDTS is returned when unknown GT Address digits are received and the return on error option is set.
4.5.2 Connectionless protocol class tests
Test Number 7
To verify that segmented messages are correctly transferred.
ETSI
9 EN 301 008 V1.1.2 (1998-05)
4.6 Test tables
Test Number 1
Reference ITU-T Recommendation Q.714 [2], clause 2, as modified by ETS 300 009-1 [1]
Title GT translation
Subtitle Correct operation of signalling route
Purpose To verify correct Global Title translation and a correctly functioning signalling
route exists between nodes under test
Pre-test Conditions:
1. Arrange the generation of a UDT message from Node A to Node B with:
- SCCP address information:
- GT;
- route on GT.
2. Arrange the SCCP routing control data at Node B as follows:
- GT translated to DPC of Node C.
3. At node B, DPC and SCCP of Node C and, if applicable (i.e. RI Node BfiC = SSN routing), Subsystem all
available.
Expected Message Sequence
NODE A NODE B NODE C
UDT UDT
(continued)
ETSI
10 EN 301 008 V1.1.2 (1998-05)
(Test 1 continued)
Test Description:
1. Arrange Node A to send a UDT message to Node B with a GT to be translated at Node B to PC of Node C.
2. Record the message sequence and parameters using a signal monitor.
3. CHECK A: Was the UDT message correctly forwarded to Node C?
4. CHECK B: Was the message sequence as above?
5. CHECK C: Were the parameter fields set correctly as indicated in the check table below?
Check Table:
UDT (NODE A fi NODE B)
1) Protocol Class : x0000000 (Class 0); or
x0000001 (Class 1).
Called Party Address:
2) Global Title Indicator : 0100.
3) Routing Indicator: 0 (Route on GT).
4) Global Title : Address information, as appropriate.
UDT (NODE B fi NODE C)
5) Protocol Class : Identical to UDT (NODE A fi NODE B).
Called Party Address: As appropriate to addressing scheme used between Node B and Node C.
NOTE: The presence or coding of any address parameters not specifically mentioned are not critical to this test.
ETSI
11 EN 301 008 V1.1.2 (1998-05)
Test Number 2
Reference ITU-T Recommendation Q.714 [2], subclause 5.2, as modified by ETS 300 009 [1]
Title GT translation
Subtitle Updating of translation table status based on information of SCCP temporary
unavailability and subsequent availability
Purpose To verify correct GT translation, message return and SCCP management
functionality followin
...