ETSI ETS 300 438-2 ed.1 (1998-04)

SLOVENSKI STANDARD
SIST ETS 300 438-2:1999
01-maj-1999
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Broadband Integrated Services Digital Network (B-ISDN); Signalling ATM Adaptation
Layer (SAAL); Service Specific Co-ordination Function (SSCF) for support of signalling at
the Network Node Interface (NNI); Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification
Ta slovenski standard je istoveten z: ETS 300 438-2 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 438-2:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 438-2:1999

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SIST ETS 300 438-2:1999
EUROPEAN ETS 300 438-2
TELECOMMUNICATION April 1998
STANDARD
Source: SPS Reference: DE/SPS-02022-2
ICS: 33.020
Key words: B-ISDN, ATM, AAL, SSCF, SSCOP, NNI, PICS
Broadband Integrated Services Digital Network (B-ISDN);
Signalling ATM Adaptation Layer (SAAL);
Service Specific Co-ordination Function (SSCF) for
support of signalling at the Network Node Interface (NNI);
Part 2: Protocol Implementation Conformance Statement (PICS)
proforma specification
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: secretariat@etsi.fr - http://www.etsi.fr - http://www.etsi.org
Tel.: +33 4 92 94 42 00 - Fax: +33 4 93 65 47 16
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.

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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.

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ETS 300 438-2: April 1998
Contents
Foreword .5
Introduction.5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .7
3.1 Definitions .7
3.2 Abbreviations .8
4 Conformance.9
Annex A (normative): PICS proforma for ETS 300 438-1 .10
A.1 Guidance for completing the PICS proforma .10
A.1.1 Purposes and structure.10
A.1.2 Abbreviations and conventions.10
A.1.3 Instructions for completing the PICS proforma.11
A.2 Identification of the implementation.12
A.2.1 Date of the statement .12
A.2.2 Implementation Under Test (IUT) identification .12
A.2.3 System Under Test (SUT) identification .12
A.2.4 Product supplier.12
A.2.5 Client.13
A.2.6 PICS contact person.14
A.3 Identification of the protocol .14
A.4 Global statement of conformance .14
A.5 SSCOP.15
A.5.1 SSCOP Protocol Capabilities (PC) .15
A.5.2 SSCOP Protocol Data Units (PD).17
A.5.3 SSCOP System Parameters (SP) .17
A.6 SSCF at NNI.18
A.6.1 SSCOP-SSCF NNI Protocol Capabilities (SNPC) .18
A.6.2 SSCF at NNI System Parameters (SNSP) .19
History.20

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ETS 300 438-2: April 1998
Foreword
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 2 of a multi-part standard covering the Service Specific Co-ordination Function (SSCF)
for support of signalling at the Network Node Interface (NNI) for the Broadband Integrated Services Digital
Network (B-ISDN) as described below:
Part 1: "Specification of SSCF at NNI [ITU-T Recommendation Q.2140, modified]";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification".
NOTE: Further parts covering conformance testing will be identified later.
Transposition dates
Date of adoption of this ETS: 3 April 1998
Date of latest announcement of this ETS (doa): 31 July 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 January 1999
Date of withdrawal of any conflicting National Standard (dow): 31 January 1999
Introduction
To evaluate conformance of a particular implementation, it is necessary to have a statement of which
capabilities and options have been implemented for a given protocol. Such a statement is called a
Protocol Implementation Conformance Statement (PICS).

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1 Scope
This second part of ETS 300 438 provides the Protocol Implementation Conformance Statement (PICS)
proforma for the Service Specific Co-ordination Function (SSCF) at the Signalling ATM Adaptation Layer
(SAAL) for support of signalling at the Network Node Interface (NNI) for the Broadband Integrated
Services Digital Network (B-ISDN) as specified in ETS 300 438-1 [2] in compliance with the relevant
requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [4].
This PICS proforma applies to the B-ISDN SSCF for NNI signalling and the Service Specific Connection-
Oriented Protocol (SSCOP, see ETS 300 436-1 [1]) implementation used to support it. Certain mandatory
SSCOP functions are not necessary for the support of NNI signalling, but may be needed to support other
SSCFs. This PICS proforma identifies such mandatory functions as optional for NNI signalling.
The supplier of a protocol implementation that is claimed to conform to ETS 300 438-1 [2] is required to
complete a copy of the PICS proforma provided in annex A of this ETS and is required to provide the
information necessary to identify both the supplier and the implementation.
2 Normative references
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 edition of the publication referred to applies.
[1] ETS 300 436-1: "Broadband Integrated Services Digital Network (B-ISDN);
Signalling ATM Adaptation Layer (SAAL); Service Specific Connection-Oriented
Protocol (SSCOP); Part 1: Protocol specification [ITU-T Recommendation
Q.2110 (1995), modified]".
[2] ETS 300 438-1: "Broadband Integrated Services Digital Network (B-ISDN);
Signalling ATM Adaptation Layer (SAAL); Service Specific Co-ordination
Function (SSCF) for support of signalling at the Network Node Interface (NNI);
Part 1: Specification of SSCF at NNI [ITU-T Recommendation Q.2140 (1995),
modified]".
[3] ISO/IEC 9646-1: "Information technology - Open systems interconnection -
Conformance testing methodology and framework - Part 1: General concepts".
[4] ISO/IEC 9646-7: "Information technology - Open systems interconnection -
Conformance testing methodology and framework - Part 7: Implementation
Conformance Statements".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the definitions in ISO/IEC 9646-1 [3] and ISO/IEC 9646-7 [4] apply. In
particular, the following terms defined in ISO/IEC 9646-1 [3] apply:
Implementation Conformance Statement (ICS): A statement made by the supplier of an implementation
or system claimed to conform to a given specification, stating which capabilities have been implemented.
The ICS can take several forms: Protocol ICS (PICS), profile ICS, profile specific ICS, and information
object ICS.
Protocol Implementation Conformance Statement (PICS): An ICS for an implementation or system
claimed to conform to a given protocol specification.
PICS proforma: A document, in the form of a questionnaire, which when completed for an
implementation or system becomes a PICS.

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3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
AA-… Signal across the boundary between SSCF and SSCOP
AAL-… Primitive across the boundary between SAAL and SAAL user
AAL ATM Adaptation Layer
ATM Asynchronous Transfer Mode
B-ISDN Broadband Integrated Services Digital Network
BGAK Begin Acknowledge (PDU)
BGN Begin (PDU)
BGREJ Begin Reject (PDU)
c Conditional
CC Connection Control
END End (PDU)
ENDAK End Acknowledge (PDU)
ER Error Recovery (PDU)
ERAK Error Recovery Acknowledge (PDU)
ICS Implementation Conformance Statement
IUT Implementation Under Test
M Mandatory
MaxCC Maximum value for the Connection Control state variable VT(CC) (count)
MaxPD Maximum value for the Poll Data state variable VT(PD) (count)
MaxSTAT Maximum number of list elements placed in STAT PDU (count)
MD Management Data (PDU)
N/A Not Applicable
O Optional
O. Optional, but, if chosen, support is required for either at least one or only one of
the options in the group labelled by the same numeral
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation Extra Information for Testing
POLL Poll (PDU)
RESYNC Resynchronization (primitive)
RS Resynchronization (PDU)
RSAK Resynchronization Acknowledge (PDU)
SAAL Signalling ATM Adaptation Layer
SCS System Conformance Statement
SD Sequenced Data (PDU)
SDU Service Data Unit
SSCF Service Specific Co-ordination Function
SSCOP Service Specific Connection-Oriented Protocol
STAT Status (PDU)
SUT System Under Test
Timer_CC Timer which protects the protocol against loss during establishment (BGN
PDU), release (END PDU), resynchronization (RS PDU), or error recovery (ER
PDU) of the connection
Timer_IDLE Timer which assures that the peer receiver is polled with the lowest permissible
polling rate via POLL PDUs when there are no outstanding acknowledgements
or new data pending receipt of credit (idle phase)
Timer_KEEP-ALIVE Timer which assures that the peer receiver is polled via POLL PDUs when there
are no outstanding acknowledgements or new data pending receipt of credit
(transient phase)
Timer_NO-RESPONSE Timer which indicates the maximum time interval during which at least one
STAT PDU needs to be received
Timer_POLL Timer which assures that the peer receiver is polled often enough in the via
POLL PDUs when there are outstanding acknowledgements or new data
pending receipt of credit (active phase)
U-NNI Upper boundary of SSCF at the NNI
UD Unit Data (PDU)
USTAT Unsolicited Status (PDU)
UU User-to-User
X Excluded

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4 Conformance
A PICS proforma that conforms to this PICS proforma specification shall be technically equivalent to
annex A, and shall preserve the numbering and ordering of the items in annex A.
A PICS that conforms to this PICS proforma specification shall:
a) describe an implementation which conforms to ETS 300 438-1 [2];
b) be a conforming PICS proforma, which has been completed in accordance with the instructions for
completion given in clause A.1;
c) include the information necessary to uniquely identify both the supplier and the implementation.

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Annex A (normative): PICS proforma for ETS 300 438-1
Notwithstanding the provisions of the copyright clause related to the text of this ETS, ETSI grants that
users of this ETS may freely reproduce the PICS proforma in this annex so that it can be used for its
intended purposes and may further publish the completed PICS.
A.1 Guidance for completing the PICS proforma
A.1.1 Purposes and structure
The purpose of this PICS proforma is to provide a mechanism whereby a supplier of an implementation of
the requirements defined in ETS 300 438-1 [2] may provide information about the implementation in a
standardized manner.
The PICS proforma is subdivided into subclauses for the following categories of information:
- guidance for completing the PICS proforma;
- identification of the implementation;
- identification of the protocol;
- global statement of conformance;
- SSCOP;
- protocol capabilities;
- protocol data units;
- system parameters;
- SSCF at NNI;
- SSCOP-SSCF NNI protocol capabilities;
- SSCF at NNI system parameters.
A.1.2 Abbreviations and conventions
The PICS proforma contained in this annex is comprised of information in tabular form in accordance with
the guidelines presented in ISO/IEC 9646-7 [4].
Item column
The item column contains a number which identifies the item in the table.
Item description column
The item description column describes in free text each respective item (e.g. parameters, timers, etc.). It
implicitly means "is supported by the implementation?".
Status column
The following notations, defined in ISO/IEC 9646-7 [4], are used for the status column:
M mandatory - the capability is required to be supported.
O optional - the capability may be supported or not.
N/A not applicable - in the given context, it is impossible to use the capability.
O.i qualified optional - for mutually exclusive or selectable options from a set. "i" is
an integer which identifies an unique group of related optional items and the
logic of their selection which is defined immediately following the table.
ci conditional - the requirement on the capability ("m", "o", "x" or "n/a") depends on
the support of other optional or conditional items. "i" is an integer identifying an
unique conditional status expression which is defined immediately following the
table.

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Reference column
The reference column gives reference to ETS 300 438-1 [2], except where explicitly stated otherwise.
Support column
The support column shall be filled in by the supplier of the implementation. The following common
notations, defined in ISO/IEC 9646-7 [4], are used for the support column:
Y or y supported by the implementation
N or n not supported by the implementation
N/A, n/a or - no answer required (allowed only if the status is n/a, directly or after evaluation
of a conditional status)
NOTE: As stated in ISO/IEC 9646-7 [4], support for a received PDU requires the ability to
parse all valid parameters of that PDU. Supporting a PDU while having no ability to
parse a valid parameter is non-conformant. Support for a parameter on a PDU means
that the semantics of that parameter are supported.
If this PICS proforma is completed in order to describe a multiple-profile support in a system, it is
necessary to be able to answer that a capability is supported for one profile and not supported for another.
In that case, the supplier shall enter the unique reference to a conditional expression, preceded by "?"
(e.g. ?3). This expression shall be given in the space for comments provided at the bottom of the table. It
uses predicates defined in the System Conformance Statement (SCS), each of which refers to a single
profile and which takes the value TRUE if and only if
...