SIST ETS 300 436-2:1999

• Abstract:

  PICS for DE/SPS-02023-1

• Status: Published
• Publication Date: 31-Oct-1999
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPS - Signalling protocols and switching
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-1999
• Due Date: 01-Nov-1999
• Completion Date: 01-Nov-1999
• Ref Project: ETSI ETS 300 436-2 ed.1 (1998-04) - Broadband Integrated Services Digital Network (B-ISDN); Signalling ATM Adaptation Layer (SAAL); Service Specific Connection Oriented Protocol (SSCOP); Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

SIST ETS 300 436-2:1999 is the SIST adoption of an ETSI standard for the Broadband Integrated Services Digital Network (B-ISDN). It defines a Protocol Implementation Conformance Statement (PICS) proforma for the Service Specific Connection Oriented Protocol (SSCOP) in the Signalling ATM Adaptation Layer (SAAL). In practice, it tells a supplier how to record which SSCOP capabilities, PDUs and parameters an implementation supports when claiming conformance to ETS 300 436-1.

What does SIST ETS 300 436-2:1999 specify?

SIST ETS 300 436-2:1999 specifies the PICS proforma for SSCOP. It is a reporting document for conformance assessment, not the protocol specification itself, so it is used to describe an implementation against ETS 300 436-1 and the PICS rules in ISO/IEC 9646-7.

The standard is organized into four clauses and one normative annex:

Annex	What it covers
Annex A	The full PICS proforma for ETS 300 436-1, including instructions, identification fields, conformance statement, SSCOP capabilities, PDUs and system parameters

Clause 1 states the scope, clause 2 lists normative references, clause 3 gives definitions and abbreviations, and clause 4 states the conformance rules for a valid PICS.

What are the key requirements of SIST ETS 300 436-2:1999?

SIST ETS 300 436-2:1999 requires a supplier to complete the annex A questionnaire when claiming conformance to ETS 300 436-1. That matters because the document is the formal record of what the implementation actually supports, which is what evaluators compare during conformance testing.

Completing the PICS correctly

Annex A.1 says the PICS is a standardized questionnaire and explains the item, status, reference, support and values-supported columns. The supplier must mark each item explicitly using the defined codes such as mandatory, optional, not applicable, or conditional. In practice, this avoids vague declarations and makes different implementations easier to compare.

Identifying the implementation

Annex A.2 requires identification of the implementation under test (IUT), the system under test (SUT), the supplier, the client and a contact person. It also asks for version and configuration details. This matters because a PICS must be tied to a specific product build or configuration, not just to a product family name.

Declaring overall conformance

Annex A.4 asks a direct yes/no question on whether the implementation meets all mandatory requirements of the referenced standard. If the answer is no, the PICS must identify the missing mandatory capabilities and explain the non-conformance. That makes the statement usable in audits or supplier reviews because the acceptance decision is explicit.

Describing SSCOP protocol capabilities

Annex A.5.1 covers the SSCOP Protocol Capabilities. It includes items such as Keep Alive, Local Data Retrieve, error recovery, establishment and release procedures, polling, STAT PDU segmentation, layer-management error reporting, protocol error detection and SSCOP User-to-User Information. For a buyer or tester, this section shows which SSCOP functions are available and which service combinations are realistic.

Declaring PDU and parameter support

Annex A.5.2 and A.5.3 cover SSCOP PDUs and system parameters. The PDU section focuses on format rules such as octet order, bit numbering, 32-bit alignment and zero coding of reserved bits. The parameter section covers items such as MaxCC, MaxPD, MaxSTAT, SSCOP SDU size and timers including Timer_POLL, Timer_KEEP-ALIVE, Timer_NO-RESPONSE, Timer_IDLE and Timer_CC. In practice, these entries show the operational limits and timing behavior that must be documented for testing and interoperability.

Handling multiple configurations

Annex A.1 allows one PICS to cover more than one configuration, or several PICS forms if that is clearer. It also provides a way to express profile-dependent answers using conditional expressions tied to the System Conformance Statement (SCS). That is useful when one product supports several deployment profiles and not every feature applies to every profile.

What terms does SIST ETS 300 436-2:1999 define?

• Implementation Conformance Statement (ICS) - A supplier statement describing which capabilities of an implementation or system are supported.
• Protocol Implementation Conformance Statement (PICS) - An ICS for an implementation claimed to conform to a particular protocol specification.
• PICS proforma - A questionnaire form that becomes a PICS once the supplier completes it.
• Implementation Under Test (IUT) - The specific implementation whose conformance is being described.
• System Under Test (SUT) - The wider system that contains the IUT during assessment.
• Protocol Data Unit (PDU) - A protocol message unit, used here for SSCOP message support and format items.
• Signalling ATM Adaptation Layer (SAAL) - The adaptation layer in which SSCOP operates for B-ISDN signalling.

Who uses SIST ETS 300 436-2:1999?

SIST ETS 300 436-2:1999 is used by protocol suppliers, telecom equipment vendors, test laboratories and conformance assessors. Suppliers use it to state exactly which SSCOP features, PDUs and parameters their implementation supports. Test teams and evaluators use it to compare an implementation against ETS 300 436-1 and to prepare conformance or interoperability checking. It is also useful for buyers or integrators who need to know whether a product supports the SSCOP functions required by a given B-ISDN signalling profile.

Which standards are used with SIST ETS 300 436-2:1999?

SIST ETS 300 436-2:1999 relies on ETS 300 436-1, which specifies the SSCOP protocol that the PICS describes. It also uses ISO/IEC 9646-1 for conformance testing concepts and ISO/IEC 9646-7 for the rules and notation used in Implementation Conformance Statements and PICS proformas.

What does the SIST ETS 300 436-2:1999 document contain?

The document contains a guided PICS form with structured tables for supplier completion. Annex A includes identification fields for the implementation, supplier and contact details, a global conformance declaration, and detailed SSCOP tables for protocol capabilities, PDU format support and system parameters. The tables use standardized status markings and support/value entries so that completed forms can be read consistently across suppliers and test organizations. It also includes instructions for profile-dependent answers and comments, which helps document more than one configuration in a controlled way.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.VSHFLILNDFLMHBroadband Integrated Services Digital Network (B-ISDN); Signalling ATM Adaptation Layer (SAAL); Service Specific Connection Oriented Protocol (SSCOP); Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:ETS 300 436-2 E13SIST ETS 300 436-2:1999en01-MXOLM-19993SIST ETS 300 436-2:1999SLOVENSKI
STANDARD
EUROPEANETS 300 436-2TELECOMMUNICATIONApril 1998STANDARDSource: SPSReference: DE/SPS-02023-2ICS:33.020Key words:B-ISDN, ATM, AAL, SSCF, SSCOP, NNI, UNI, PICSBroadband Integrated Services Digital Network (B-ISDN);Signalling ATM Adaptation Layer (SAAL);Service Specific Connection Oriented Protocol (SSCOP);Part 2: Protocol Implementation Conformance Statement (PICS)proforma specificationETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEInternet: [e-mail] - http://www.etsi.fr - http://www.etsi.orgTel.: [phone] - Fax: [phone]Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1998. All rights reserved.SIST ETS 300 436-2:1999

Page 2ETS 300 436-2: April 1998Whilst 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.SIST ETS 300 436-2:1999

Page 3ETS 300 436-2: April 1998ContentsForeword.5Introduction.51Scope.72Normative references.73Definitions and abbreviations.73.1Definitions.73.2Abbreviations.84Conformance.9Annex A (normative):PICS proforma for ETS 300 436-1.10A.1Guidance for completing the PICS proforma.10A.1.1Purposes and structure.10A.1.2Abbreviations and conventions.10A.1.3Instructions for completing the PICS proforma.11A.2Identification of the implementation.12A.2.1Date of the statement.12A.2.2Implementation Under Test (IUT) identification.12A.2.3System Under Test (SUT) identification.12A.2.4Product supplier.12A.2.5Client.13A.2.6PICS contact person.14A.3Identification of the protocol.14A.4Global statement of conformance.14A.5SSCOP.15A.5.1SSCOP Protocol Capabilities (PC).15A.5.2SSCOP PDUs (PD).16A.5.3SSCOP System Parameters (SP).16History.17SIST ETS 300 436-2:1999

Page 4ETS 300 436-2: April 1998Blank pageSIST ETS 300 436-2:1999

Page 5ETS 300 436-2: April 1998ForewordThis European Telecommunication Standard (ETS) has been produced by the Signalling Protocols andSwitching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).This ETS is part 2 of a multi-part standard covering the Service Specific Connection Oriented Protocol(SSCOP) for the Broadband Integrated Services Digital Network (B-ISDN) as described below:Part 1:"Protocol specification [ITU-T Recommendation Q.2110, modified]";Part 2:"Protocol Implementation Conformance Statement (PICS) proforma specification";Part 3:"Test Suite Structure and Test Purposes (TSS&TP) specification";Part 4:"Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)specification".Transposition datesDate of adoption of this ETS:3 April 1998Date of latest announcement of this ETS (doa):31 July 1998Date of latest publication of new National Standardor endorsement of this ETS (dop/e):31 January 1999Date of withdrawal of any conflicting National Standard (dow):31 January 1999IntroductionTo evaluate conformance of a particular implementation, it is necessary to have a statement of whichcapabilities and options have been implemented for a given protocol. Such a statement is called aProtocol Implementation Conformance Statement (PICS).SIST ETS 300 436-2:1999

Page 6ETS 300 436-2: April 1998Blank pageSIST ETS 300 436-2:1999

Page 7ETS 300 436-2: April 19981ScopeThis second part of ETS 300 436 provides the Protocol Implementation Conformance Statement (PICS)proforma for the Service Specific Connection Oriented Protocol (SSCOP) at the Signalling ATMAdaptation Layer (SAAL) for the Broadband Integrated Services Digital Network (B-ISDN) as specified inETS 300 436-1 [1] in compliance with the relevant requirements and in accordance with the relevantguidance given in ISO/IEC 9646-7 [3].The supplier of a protocol implementation that is claimed to conform to ETS 300 436-1 [1] is required tocomplete a copy of the PICS proforma provided in annex A of this ETS and is required to provide theinformation necessary to identify both the supplier and the implementation.2Normative referencesThis ETS incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to, or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references thelatest 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-OrientedProtocol (SSCOP); Part 1: Protocol specification [ITU-T RecommendationQ.2110 (1995), modified]".[2]ISO/IEC 9646-1: "Information technology - Open systems interconnection -Conformance testing methodology and framework - Part 1: General concepts".[3]ISO/IEC 9646-7: "Information technology - Open systems interconnection -Conformance testing methodology and framework - Part 7: ImplementationConformance Statements".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the definitions in ISO/IEC 9646-1 [2] and ISO/IEC 9646-7 [3] apply. Inparticular, the following terms defined in ISO/IEC 9646-1 [2] apply:Implementation Conformance Statement (ICS): A statement made by the supplier of an implementationor 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 informationobject ICS.Protocol Implementation Conformance Statement (PICS): An ICS for an implementation or systemclaimed to conform to a given protocol specification.PICS proforma: A document, in the form of a questionnaire, which when completed for animplementation or system becomes a PICS.SIST ETS 300 436-2:1999

Page 8ETS 300 436-2: April 19983.2AbbreviationsFor the purposes of this ETS, the following abbreviations apply:AALATM Adaptation LayerATMAsynchronous Transfer ModeB-ISDNBroadband Integrated Services Digital NetworkBGNBegin (PDU)BGREJBegin Reject (PDU)cConditionalCCConnection ControlENDEnd (PDU)ERError Recovery (PDU)ICSImplementation Conformance StatementIUTImplementation Under TestMMandatoryMaxCCMaximum value for the Connection Control state variable VT(CC) (count)MaxPDMaximum value for the Poll Data state variable VT(PD) (count)MaxSTATMaximum number of list elements placed in STAT PDU (count)N/ANot ApplicableOOptionalO.Optional, but, if chosen, support is required for either at least one or only one ofthe options in the group labelled by the same numeral PDUProtocol Data UnitPICSProtocol Implementation Conformance StatementPIXITProtocol Implementation Extra Information for TestingPOLLPoll (PDU)RSResynchronization (PDU)SAALSignalling ATM Adaptation LayerSCSSystem Conformance StatementSDSequenced Data (PDU)SDUService Data UnitSSCFService Specific Co-ordination FunctionSSCOPService Specific Connection Oriented ProtocolSTATStatus (PDU)SUTSystem Under TestTimer_CCTimer which protects the protocol against loss during establishment (BGNPDU), release (END PDU), resynchronization (RS PDU), or error recovery (ERPDU) of the connectionTimer_IDLETimer which assures that the peer receiver is polled with the lowest permissiblepolling rate via POLL PDUs when there are no outstanding acknowledgementsor new data pending receipt of credit (idle phase)Timer_KEEP-ALIVETimer which assures that the peer receiver is polled via POLL PDUs when thereare no outstanding acknowledgements or new data pending receipt of credit(transient phase)Timer_NO-RESPONSETimer which indicates the maximum time interval during which at least oneSTAT PDU needs to be receivedTimer_POLLTimer which assures that the peer receiver is polled often enough in the viaPOLL PDUs when there are outstanding acknowledgements or new datapending receipt of credit (active phase)UUUser-to-UserXExcludedSIST ETS 300 436-2:1999

Page 9ETS 300 436-2: April 19984ConformanceA PICS proforma that conforms to this PICS proforma specification shall be technically equivalent toannex 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 300 436-1 [1];b)be a conforming PICS proforma, which has been completed in accordance with the instructions forcompletion given in clause A.1;c)include the information necessary to uniquely identify both the supplier and the implementation.SIST ETS 300 436-2:1999

Page 10ETS 300 436-2: April 1998Annex A (normative):PICS proforma for ETS 300 436-1Notwithstanding the provisions of the copyright clause related to the text of this ETS, ETSI grants thatusers of this ETS may freely reproduce the PICS proforma in this annex so that it can be used for itsintended purposes and may further publish the completed PICS.A.1Guidance for completing the PICS proformaA.1.1Purposes and structureThe purpose of this PICS proforma is to provide a mechanism whereby a supplier of an implementation ofthe requirements defined in ETS 300 436-1 [1] may provide information about the implementation in astandardized 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.A.1.2Abbreviations and conventionsThe PICS proforma contained in this annex is comprised of information in tabular form in accordance withthe guidelines presented in ISO/IEC 9646-7 [3].Item columnThe item column contains a number which identifies the item in the table.Item description columnThe item description column describes in free text each respective item (e.g. parameters, timers, etc.). Itimplicitly means "is supported by the implementation?".Status columnThe following notations, defined in ISO/IEC 9646-7 [3], are used for the status column:Mmandatory - the capability is required to be supported.Ooptional - the capability may be supported or not.N/Anot applicable - in the given context, it is impossible to use the capability.O.iqualified optional - for mutually exclusive or selectable options from a set. "i" isan integer which identifies an unique group of related optional items and thelogic of their selection which is defined immediately following the table.ciconditional - the requirement on the capability ("m", "o", "x" or "n/a") depends onthe support of other optional or conditional items. "i" is an integer identifying anunique conditional status expression which is defined immediately following thetable.SIST ETS 300 436-2:1999

Page 11ETS 300 436-2: April 1998Reference columnThe reference column gives reference to ETS 300 436-1 [1], except where explicitly stated otherwise.Support columnThe support column shall be filled in by the supplier of the implementation. The
...

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01-november-1999
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Broadband Integrated Services Digital Network (B-ISDN); Signalling ATM Adaptation
Layer (SAAL); Service Specific Connection Oriented Protocol (SSCOP); Part 2: Protocol
Implementation Conformance Statement (PICS) proforma specification
Ta slovenski standard je istoveten z: ETS 300 436-2 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 436-2
TELECOMMUNICATION April 1998
STANDARD
Source: SPS Reference: DE/SPS-02023-2
ICS: 33.020
Key words: B-ISDN, ATM, AAL, SSCF, SSCOP, NNI, UNI, PICS
Broadband Integrated Services Digital Network (B-ISDN);
Signalling ATM Adaptation Layer (SAAL);
Service Specific Connection Oriented Protocol (SSCOP);
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: [e-mail] - http://www.etsi.fr - http://www.etsi.org
Tel.: [phone] - Fax: [phone]
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.

Page 2
ETS 300 436-2: April 1998
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.

Page 3
ETS 300 436-2: 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 300 436-1 .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 PDUs (PD).16
A.5.3 SSCOP System Parameters (SP) .16
History.17

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ETS 300 436-2: April 1998
Blank page
Page 5
ETS 300 436-2: 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 Connection Oriented Protocol
(SSCOP) for the Broadband Integrated Services Digital Network (B-ISDN) as described below:
Part 1: "Protocol specification [ITU-T Recommendation Q.2110, modified]";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification";
Part 4: "Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)
specification".
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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ETS 300 436-2: April 1998
Blank page
Page 7
ETS 300 436-2: April 1998
1 Scope
This second part of ETS 300 436 provides the Protocol Implementation Conformance Statement (PICS)
proforma for the Service Specific Connection Oriented Protocol (SSCOP) at the Signalling ATM
Adaptation Layer (SAAL) for the Broadband Integrated Services Digital Network (B-ISDN) as specified in
ETS 300 436-1 [1] in compliance with the relevant requirements and in accordance with the relevant
guidance given in ISO/IEC 9646-7 [3].
The supplier of a protocol implementation that is claimed to conform to ETS 300 436-1 [1] 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] ISO/IEC 9646-1: "Information technology - Open systems interconnection -
Conformance testing methodology and framework - Part 1: General concepts".
[3] 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 [2] and ISO/IEC 9646-7 [3] apply. In
particular, the following terms defined in ISO/IEC 9646-1 [2] 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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ETS 300 436-2: April 1998
3.2 Abbreviations
For the purposes of this ETS, the following abbreviations apply:
AAL ATM Adaptation Layer
ATM Asynchronous Transfer Mode
B-ISDN Broadband Integrated Services Digital Network
BGN Begin (PDU)
BGREJ Begin Reject (PDU)
c Conditional
CC Connection Control
END End (PDU)
ER Error Recovery (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)
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)
RS Resynchronization (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)
UU User-to-User
X Excluded
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ETS 300 436-2: April 1998
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 300 436-1 [1];
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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ETS 300 436-2: April 1998
Annex A (normative): PICS proforma for ETS 300 436-1
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 300 436-1 [1] 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.
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 [3].
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 [3], 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.
...