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- .rs
- .\" Troff code generated by TPS Convert from ITU Original Files
- .\" Not Copyright (~c) 1991
- .\"
- .\" Assumes tbl, eqn, MS macros, and lots of luck.
- .TA 1c 2c 3c 4c 5c 6c 7c 8c
- .ds CH
- .ds CF
- .EQ
- delim @@
- .EN
- .nr LL 40.5P
- .nr ll 40.5P
- .nr HM 3P
- .nr FM 6P
- .nr PO 4P
- .nr PD 9p
- .po 4P
-
- .rs
- \v'|.5i'
- .sp 2P
- .LP
- \fBRecommendation\ X.228\fR
- .RT
- .sp 2P
- .sp 1P
- .ce 1000
- \fBRELIABLE TRANSFER:\fR \fBPROTOCOL SPECIFICATION\fR
- .FS
- Recommendation\ X.228 and ISO 9066\(hy2 [Information processing systems
- \(em Text
- Communication \(em Reliable Transfer Part\ 2: Protocol Specification] were
- developed in close collaboration and are technically aligned.
- .FE
- .EF '% Fascicle\ VIII.5\ \(em\ Rec.\ X.228''
- .OF '''Fascicle\ VIII.5\ \(em\ Rec.\ X.228 %'
- .ce 0
- .sp 1P
- .ce 1000
- \fI(Melbourne, 1988)\fR
- .sp 9p
- .RT
- .ce 0
- .sp 1P
- .LP
- The CCITT,
- .sp 1P
- .RT
- .sp 1P
- .LP
- \fIconsidering\fR
- .sp 9p
- .RT
- .PP
- (a)
- that Recommendation X.200 defines the Basic Reference Model of Open Systems
- Interconnection (OSI) for CCITT applications;
- .PP
- (b)
- that Recommendation X.210 defines the service conventions for describing
- the services of the OSI reference model;
- .PP
- (c)
- that Recommendation X.216 defines the Presentation Layer
- service;
- .PP
- (d)
- that Recommendation X.217 defines the Association Control service;
- .PP
- (e)
- that Recommendation X.218 defines the Reliable Transfer
- service;
- .PP
- (f
- )
- that there is a need for common Reliable Transfer
- support for various applications;
- .sp 1P
- .LP
- \fIunanimously declares\fR
- .sp 9p
- .RT
- .PP
- that this Recommendation defines the Reliable Transfer protocol of Open
- Systems Interconnection for CCITT Applications as given in the Scope and
- Field of Application.
- .sp 1P
- .ce 1000
- CONTENTS
- .ce 0
- .sp 1P
- .sp 2P
- .LP
- 0
- \fIIntroduction\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 1
- \fIScope and Field of Application\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 2
- \fIReferences\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 3
- \fIDefinitions\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 4
- \fIAbbreviations\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 5
- \fIConventions\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 6
- \fIOverview of the Protocol\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 7
- \fIElements of Procedure\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 8
- \fIMapping to Used Services\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 9
- \fIAbstract Syntax Definition of APDUs\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- 10
- \fIConformance\fR
- .sp 9p
- .RT
- .sp 1P
- .LP
- \fIAnnex A\fR \(em
- State Transition Tables
- .sp 9p
- .RT
- .sp 1P
- .LP
- \fIAnnex B\fR \(em
- Differences between this Recommendation and\fR Recommendation\ X.410\
- \(em\ 1984
- .sp 9p
- .RT
- .sp 1P
- .LP
- \fIAnnex C\fR \(em
- Summary of Assigned Object Identifier
- Values
- .bp
- .sp 9p
- .RT
- .sp 2P
- .LP
- \fB0\fR \fBIntroduction\fR
- .sp 1P
- .RT
- .PP
- This Recommendation specifies the protocol for the services
- provided by an application\(hyservice\(hyelement\ \(em\ the Reliable Transfer
- Service
- Element (RTSE)\ \(em\ to provide for the Reliable Transfer of Application
- Protocol Data Units (APDUs) between open systems. This Recommendation is
- one of a set of Recommendations specifying the protocols for sets of
- application\(hyservice\(hyelements commonly used by a number of applications.
- .PP
- Reliable Transfer provides an application\(hyindependent mechanism to
- recover from communication and end\(hysystem failure minimizing the amount of
- retransmission.
- .PP
- This Recommendation is technically aligned with ISO 9066\(hy2.
- .RT
- .sp 2P
- .LP
- \fB1\fR \fBScope and Field of Application\fR
- .sp 1P
- .RT
- .PP
- This Recommendation specifies the protocol (abstract syntax) and
- procedures for the Reliable Transfer Service Element services (Recommendation
- X.218). The RTSE services are provided in conjunction with the Association
- Control Service Element (ACSE) services (Recommendation X.217) and the ACSE
- protocol (Recommendation X.227), and the presentation\(hyservice (Recommendation
- X.216).
- .PP
- The RTSE procedures are defined in terms of:
- .RT
- .LP
- a)
- the interactions between peer RTSE protocol machines
- through the use of ACSE and the presentation\(hyservice.
- .LP
- b)
- the interactions between the RTSE protocol machine and its service\(hyuser.
- .PP
- This Recommendation specifies conformance requirements for systems implementing
- these procedures.
- .sp 2P
- .LP
- \fB2\fR \fBReferences\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- Recommendation X.200\ \(em
- Reference Model of Open Systems Interconnection
- for CCITT Applications (See also ISO\ 7498)
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.208\ \(em
- Specification of abstract syntax notation (See
- also ISO\ 8824).
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.209\ \(em
- Specification of Basic Encoding Rules for the
- abstract syntax notation (See also ISO\ 8825).
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.210\ \(em
- Open Systems Interconnection Layer Service
- Definition Conventions (See also ISO/TR\ 8509).
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.216\ \(em
- Presentation Service Definition for Open Systems Interconnection for
- CCITT Applications (See also ISO\ 8822).
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.217\ \(em
- Association Control Service Definition for CCITT Applications (See also
- ISO\ 8649).
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.218\ \(em
- Reliable Transfer: Model and Service Definition
- (See also ISO 9066\(hy1)
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.219\ \(em
- Remote Operations: Model, Notation and Service
- Definition (See also ISO\ 9072\(hy1)
- .sp 9p
- .RT
- .sp 1P
- .LP
- Recommendation X.227\ \(em
- Association Control Protocol Specification for
- CCITT Applications (See also ISO\ 8650).
- .sp 9p
- .RT
- .sp 2P
- .LP
- \fB3\fR \fBDefinitions\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 3.1
- \fIReference Model Definitions\fR
- .sp 9p
- .RT
- .PP
- This Recommendation is based on the concepts developed in
- Recommendation X. 200 and makes use of the following terms defined in
- it:
- .RT
- .LP
- a)
- Application Layer;
- .LP
- b)
- application\(hyprocess;
- .LP
- c)
- application\(hyentity;
- .bp
- .LP
- d)
- application\(hyservice\(hyelement;
- .LP
- e)
- application\(hyprotocol\(hydata\(hyunit;
- .LP
- f
- )
- application\(hyprotocol\(hycontrol\(hyinformation;
- .LP
- g)
- presentation\(hyservice;
- .LP
- h)
- presentation\(hyconnection;
- .LP
- i)
- session\(hyservice;
- .LP
- j
- )
- session\(hyconnection; and
- .LP
- k)
- user\(hyelement
- .LP
- l)
- two\(hyway\(hyalternate interaction
- .LP
- m)
- transfer syntax.
- .sp 1P
- .LP
- 3.2
- \fIService Conventions Definitions\fR
- .sp 9p
- .RT
- .PP
- This Recommendation makes use of the following terms defined in
- Recommendation\ X.210:
- .RT
- .LP
- a)
- service\(hyprovider;
- .LP
- b)
- service\(hyuser;
- .LP
- c)
- confirmed service;
- .LP
- d)
- non\(hyconfirmed service;
- .LP
- e)
- provider\(hyinitiated service;
- .LP
- f
- )
- primitive;
- .LP
- g)
- request (primitive);
- .LP
- h)
- indication (primitive);
- .LP
- i)
- response (primitive); and
- .LP
- j
- )
- confirm (primitive).
- .sp 1P
- .LP
- 3.3
- \fIPresentation Service Definitions\fR
- .sp 9p
- .RT
- .PP
- This Recommendation makes use of the following terms defined in
- Recommendation\ X.216:
- .RT
- .LP
- a)
- abstract syntax;
- .LP
- b)
- abstract syntax name;
- .LP
- c)
- presentation context;
- .LP
- d)
- default context.
- .sp 1P
- .LP
- 3.4
- \fIAssociation Control Definitions\fR
- .sp 9p
- .RT
- .PP
- This Recommendation makes use of the following terms defined in
- Recommendation\ X.217:
- .RT
- .LP
- a)
- application\(hyassociation; association;
- .LP
- b)
- application context;
- .LP
- c)
- Association Control Service Element; and
- .LP
- d)
- X.410\(hy1984 mode.
- .sp 1P
- .LP
- 3.5
- \fIRTSE Service Definitions\fR
- .sp 9p
- .RT
- .PP
- This Recommendation makes use of the following terms defined in
- Recommendation\ X.218:
- .RT
- .LP
- a)
- association\(hyinitiating\(hyapplication\(hyentity; association\(hyinitiator;
- .LP
- b)
- association\(hyresponding\(hyapplication\(hyentity; association\(hyresponder;
- .LP
- c)
- sending\(hyapplication\(hyentity; sender;
- .LP
- d)
- receiving\(hyapplication\(hyentity; receiver;
- .LP
- e)
- requestor;
- .LP
- f
- )
- acceptor;
- .LP
- g)
- Reliable Transfer Service Element;
- .LP
- h)
- RTSE\(hyuser;
- .LP
- i)
- RTSE\(hyprovider;
- .LP
- j
- )
- ACSE\(hyprovider;
- .bp
- .LP
- k)
- monologue interaction;
- .LP
- l)
- syntax\(hymatching\(hyservices;
- .LP
- m)
- Reliable Transfer;
- .LP
- n)
- X.410\(hy1984 mode; and
- .LP
- o)
- normal mode.
- .sp 1P
- .LP
- 3.6
- \fIReliable Transfer Protocol Specification Definitions\fR
- .sp 9p
- .RT
- .PP
- For the purpose of this Recommendation the following definitions
- apply:
- .RT
- .sp 1P
- .LP
- 3.6.1
- \fBreliable\(hytransfer\(hyprotocol\(hymachine\fR :
- .sp 9p
- .RT
- .PP
- The protocol machine for the Reliable Transfer Service Element
- specified in this Recommendation.
- .RT
- .sp 1P
- .LP
- 3.6.2
- \fBrequesting\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is the
- requestor of a particular Reliable Transfer Service Element service.
- .RT
- .sp 1P
- .LP
- 3.6.3
- \fBaccepting\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is the
- acceptor for a particular Reliable Transfer Service Element service.
- .RT
- .sp 1P
- .LP
- 3.6.4
- \fBsending\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is the
- sender.
- .RT
- .sp 1P
- .LP
- 3.6.5
- \fBreceiving\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is the
- receiver.
- .RT
- .sp 1P
- .LP
- 3.6.6
- \fBassociation\(hyinitiating\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR
- :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is
- the association\(hyinitiator.
- .RT
- .sp 1P
- .LP
- 3.6.7
- \fBassociation\(hyresponding\(hyreliable\(hytransfer\(hyprotocol\(hymachine\fR
- :
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine whose RTSE\(hyuser is
- the association\(hyresponder.
- .RT
- .sp 2P
- .LP
- \fB4\fR \fBAbbreviations\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 4.1
- \fIData Units\fR
- .sp 9p
- .RT
- .PP
- APDU \
- application\(hyprotocol\(hydata\(hyunit.
- .RT
- .sp 1P
- .LP
- 4.2
- \fITypes of Application\(hyprotocol\(hydata\(hyunits\fR
- .sp 9p
- .RT
- .PP
- The following abbreviations have been given to the
- application\(hyprotocol\(hydata\(hyunits defined in this Recommendation.
- .RT
- .LP
- RTAB
- RT\(hyP\(hyABORT and RT\(hyU\(hyABORT
- application\(hyprotocol\(hydata\(hyunit
- .LP
- RTORQ
- RT\(hyOPEN\(hyREQUEST application\(hyprotocol\(hydata\(hyunit
- .LP
- RTOAC
- RT\(hyOPEN\(hyACCEPT application\(hyprotocol\(hydata\(hyunit
- .LP
- RTORJ
- RT\(hyOPEN\(hyREJECT application protocol\(hydata\(hyunit
- .LP
- RTTR
- RT\(hyTRANSFER application\(hyprotocol\(hydata\(hyunit
- .LP
- RTTP
- RT\(hyTOKEN\(hyPLEASE application\(hyprotocol\(hydata\(hyunit
- .bp
- .sp 1P
- .LP
- 4.3
- \fIOther Abbreviations\fR
- .sp 9p
- .RT
- .PP
- The following abbreviations are used in this
- Recommendation.
- .RT
- .LP
- AE
- application\(hyentity
- .LP
- ACSE
- Association Control Service Element
- .LP
- ASE
- application\(hyservice\(hyelement
- .LP
- RTPM
- reliable\(hytransfer\(hyprotocol\(hymachine
- .LP
- RT (or RTS)
- Reliable Transfer
- .LP
- RTSE
- Reliable Transfer Service Element
- .sp 2P
- .LP
- \fB5\fR \fBConventions\fR
- .sp 1P
- .RT
- .PP
- This Recommendation employs a tabular presentation of its APDU
- fields. In clause\ 7, tables are presented for each RTSE APDU. Each field is
- summarized using the following notation:
- .RT
- .LP
- M
- presence is mandatory
- .LP
- U
- presence is a RTSE service\(hyuser option
- .LP
- T
- presence is a RTPM option
- .LP
- req
- source is related request primitive
- .LP
- ind
- sink is related indication primitive
- .LP
- resp
- source is related response primitive
- .LP
- conf
- sink is related confirm primitive
- .LP
- sp
- source or sink is the RTPM
- .PP
- The structure of each RTSE APDU is specified in clause 9 using the abstract
- syntax notation of Recommendation X.208.
- .sp 2P
- .LP
- \fB6\fR \fBOverview of the Protocol\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 6.1
- \fIService Provision\fR
- .sp 9p
- .RT
- .PP
- The protocol specified in this Recommendation provides the services defined
- in Recommendation\ X.218. These services are listed in
- Table\ 1/X.228.
- .RT
- .LP
- .sp 2
- .ce
- \fBH.T. [T1.228]\fR
- .ce
- TABLE\ 1/X.228
- .ce
- \fBRTSE Service Summary\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(78p) .
- Service Type
- _
- .T&
- lw(90p) | lw(78p) .
- RT\(hyOPEN Confirmed
- .T&
- lw(90p) | lw(78p) .
- RT\(hyCLOSE Confirmed
- .T&
- lw(90p) | lw(78p) .
- RT\(hyTRANSFER Confirmed
- .T&
- lw(90p) | lw(78p) .
- RT\(hyTURN\(hyPLEASE Non\(hyconfirmed
- .T&
- lw(90p) | lw(78p) .
- RT\(hyTURN\(hyGIVE Non\(hyconfirmed
- .T&
- lw(90p) | lw(78p) .
- RT\(hyP\(hyABORT Provider\(hyinitiated
- .T&
- lw(90p) | lw(78p) .
- RT\(hyU\(hyABORT Non\(hyconfirmed
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable [T1.228], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .bp
- .sp 2P
- .LP
- 6.2
- \fIUse of Services\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 6.2.1
- \fIACSE Services\fR
- .sp 9p
- .RT
- .PP
- The RTPM requires access to the A\(hyASSOCIATE, A\(hyRELEASE, A\(hyABORT
- and A\(hyP\(hyABORT services. This Recommendation assumes that the RTPM
- is the sole user of these services.
- .RT
- .sp 1P
- .LP
- 6.2.2
- \fIUse of the Presentation\(hyservice\fR
- .sp 9p
- .RT
- .PP
- The RTPM requires access to the P\(hyACTIVITY\(hySTART, P\(hyDATA,
- P\(hyMINOR\(hySYNCHRONIZE,
- P\(hyACTIVITY\(hyEND, P\(hyACTIVITY\(hyINTERRUPT,
- P\(hyACTIVITY\(hyDISCARD,
- P\(hyU\(hyEXCEPTION\(hyREPORT,
- P\(hyACTIVITY\(hyRESUME, P\(hyP\(hyEXCEPTION\(hyREPORT,
- P\(hyTOKEN\(hyPLEASE
- and P\(hyCONTROL\(hyGIVE services. This Recommendation assumes that the
- RTPM is the sole user of the above services.
- .PP
- The RTPM requires access to local syntax\(hymatching\(hyservices provided
- by the presentation\(hyservice provider. This syntax\(hymatching\(hyservice
- consists
- of:
- .RT
- .LP
- a)
- an encoding service enabling the transformation from the
- local representation of an APDU value into an encoded\(hyAPDU\(hyvalue
- of type OCTET STRING the value of which is the representation of the APDU
- value specified by the negotiated transfer syntax;
- .LP
- b)
- a decoding service enabling the transformation from an
- encoded\(hyAPDU\(hyvalue into the local representation of the APDU value.
- .PP
- If X.410\(hy1984 mode or simple encoding is used by the Presentation Layer,
- the APDU value is encoded as ASN.1 type ANY. If full encoding is used by
- the Presentation Layer, the APDU value is encoded as ASN.1 type EXTERNAL.
- (For X.410\(hy1984 mode, single encoding and full encoding see Recommendation
- X.226).
- .PP
- This Recommendation recognizes that the ACSE services require access to
- the P\(hyCONNECT,
- P\(hyRELEASE, P\(hyU\(hyABORT and P\(hyP\(hyABORT services. This
- Recommendation assumes that the ACSE and the RTPM are the sole users of
- any of the above, or of any other, presentation\(hyservices.
- .PP
- During the lifetime of an application\(hyassociation, the underlying
- presentation\(hyconnections either use a single presentation context or
- multiple presentation contexts as a part of the presentation multiple defined
- context
- facility. The choice is determined by the use of the Single Presentation
- Context parameter of the RT\(hyOPEN service as described in clause\ 8.1.1.1.3
- and\ 8.1.1.1.4.
- .RT
- .sp 1P
- .LP
- 6.3
- \fIModel\fR
- .sp 9p
- .RT
- .PP
- The reliable\(hytransfer\(hyprotocol\(hymachine (RTPM) communicates with
- its service\(hyuser by means of primitives defined in Recommendation X.218.
- Each
- invocation of the RTPM controls a single application\(hyassociation.
- .PP
- The RTPM is driven by RTSE service request and response primitives
- from its service\(hyuser, and by indication and confirm primitives from
- the ACSE services and the presentation\(hyservice. The RTPM, in turn, issues
- indication and confirm primitives to its service\(hyuser and request and
- response primitives on the used ACSE services or presentation\(hyservice.
- .PP
- The reception of an RTSE service primitive, or of an ACSE service
- primitive, or of a presentation\(hyservice primitive, and the generation of
- dependent actions are considered to be indivisible.
- .PP
- During the use of the RTSE services, the existence of both the
- association\(hyinitiating AE and the association\(hyresponding AE is presumed.
- How
- these AEs are created is beyond the scope of this Recommendation.
- .PP
- During the use of the RTSE services, except RT\(hyOPEN, the existence of
- an application\(hyassociation between the peer AEs is presumed.
- .PP
- Note\ \(em\ Each application\(hyassociation may be identified in an end
- system by an internal, implementation dependent mechanism so that the RTSE
- service\(hyuser, and the RTPM, and the ACSE service\(hyprovider can refer to
- it.
- .bp
- .RT
- .sp 2P
- .LP
- \fB7\fR \fBElements of procedure\fR
- .sp 1P
- .RT
- .PP
- The RTSE protocol consists of the following elements of
- procedure:
- .RT
- .LP
- a)
- association\(hyestablishment
- .LP
- b)
- association\(hyrelease
- .LP
- c)
- transfer
- .LP
- d)
- turn\(hyplease
- .LP
- e)
- turn\(hygive
- .LP
- f
- )
- error reporting:
- .LP
- f1)
- user\(hyexception\(hyreport
- .LP
- f2)
- provider\(hyexception\(hyreport
- .LP
- g)
- error handling:
- .LP
- g1)
- transfer\(hyinterrupt
- .LP
- g2)
- transfer\(hydiscard
- .LP
- g3)
- association\(hyabort
- .LP
- g4)
- association\(hyprovider\(hyabort
- .LP
- h)
- error recovery:
- .LP
- h1)
- transfer\(hyresumption (for recovery from g1), or after successful h3)
- from g3) or g4))
- .LP
- h2)
- transfer\(hyretry (for recovery from g2))
- .LP
- h3)
- association\(hyrecovery (for recovery from g3 or g4))
- .LP
- i)
- abort:
- .LP
- i1)
- transfer\(hyabort (recovery from g1) or g2) or g3) or
- g4) not possible)
- .LP
- i2)
- provider\(hyabort (recovery from g1) or g2) or g3) or
- g4) not possible)
- .LP
- i3)
- user\(hyabort.
- .PP
- In the following clauses, a summary of each of these elements of procedure
- is presented. This consists of a summary of the relevant APDUs, and a high\(hylevel
- overview of the relationship between the RTSE service primitives and the
- APDUs involved and the used presentation\(hyservice.
- .PP
- Clause 8 describes how the service primitives are mapped on the ACSE services,
- and on the presentation\(hyservice.
- .RT
- .sp 2P
- .LP
- 7.1
- \fIAssociation\(hyestablishment\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.1.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The association\(hyestablishment procedure is used to establish an
- application\(hyassociation.
- .RT
- .sp 1P
- .LP
- 7.1.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The association\(hyestablishment procedures uses the RT\(hyOPEN\(hyREQUEST
- (RTORQ) APDU, the RT\(hyOPEN\(hyACCEPT (RTCAC) APDU, and the RT\(hyOPEN\(hyREJECT
- (RTORJ) APDU.
- .PP
- \fINote\fR \ \(em\ These APDUs are also used in the association\(hyrecovery
- procedure.
- .RT
- .sp 1P
- .LP
- 7.1.2.1
- \fIRTORQ APDU\fR
- .sp 9p
- .RT
- .PP
- The RT\(hyOPEN REQUEST (RTORQ) APDU is used in the request to
- establish an application\(hyassociation. The fields of the RTORQ APDU are
- listed in Table\ 2/X.228.
- .RT
- .sp 1P
- .LP
- 7.1.2.2
- \fIRTOAC APDU\fR
- .sp 9p
- .RT
- .PP
- The RT\(hyOPEN\(hyACCEPT (RTOAC) APDU is used in the positive response
- to the request to establish an application\(hyassociation. The fields of
- the RTOAC
- APDU are listed in Table\ 3/X.228.
- .bp
- .RT
- .ce
- \fBH.T. [T2.228]\fR
- .ce
- TABLE\ 2/X.228
- .ce
- \fBRTORQ APDU Fields\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Checkpoint\(hysize T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Window\(hysize T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Dialogue\(hymode U req ind
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- User\(hydata (Note\ 1) U req ind
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- T{
- Session\(hyconnection\(hyidentifier (Note\ 2)
- T} T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- T{
- Application\(hyprotocol (Note\ 3)
- T} U req T{
- ind
- \fINote\ 1\fR
- \ \(em\ The User\(hydata field is used solely in the association\(hyestablishment procedure.
- .parag
- \fINote\ 2\fR
- \ \(em\ The Session\(hyconnection\(hyidentifier field is used solely in the
- association\(hyrecovery procedure.
- .parag
- \fINote\ 3\fR
- \ \(em\ The Application\(hyprotocol field is used solely in the
- X.410\(hy1984 mode.
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTableau 2/X.228 [T2.228], p.2\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 4
- .ce
- \fBH.T. [T3.228]\fR
- .ce
- TABLE\ 3/X.228
- .ce
- \fBRTOAC APDU Fields\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Checkpoint\(hysize T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Window\(hysize T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- User\(hydata (Note 1) U resp conf
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- T{
- Session\(hyconnection\(hyidentifier (Note 2)
- T} T sp T{
- sp
- \fINote\ 1\fR
- \ \(em\ The User\(hydata field is used solely in the association\(hyestablishment procedure.
- .parag
- \fINote\ 2\fR
- \ \(em\ The Session\(hyconnection\(hyidentifier field is used solely in the
- association\(hyrecovery procedure.
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTableau 3/X.228 [T3.228], p.3\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .sp 1P
- .LP
- .sp 2
- 7.1.2.3
- \fIRTORJ APDU\fR
- .sp 9p
- .RT
- .PP
- RT\(hyOPEN\(hyREJECT (RTORJ) APDU is used in the negative response to
- the request to establish an application\(hyassociation. The fields of the RTORJ
- APDU are listed in Table\ 4/X.228.
- .bp
- .RT
- .ce
- \fBH.T. [T4.228]\fR
- .ce
- TABLE\ 4/X.228
- .ce
- \fBRTORJ APDU Fields\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Refuse\(hyreason (Note\ 1) T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- User\(hydata (Note\ 2) U resp T{
- conf
- \fINote\ 1\fR
- \ \(em\ The Refuse\(hyreason field is used solely in the\ X.410\(hy1984 mode.
- .parag
- \fINote\ 2\fR
- \ \(em\ The User\(hydata field is used solely in the normal mode, and is not
- used in the association\(hyrecovery procedure.
- .parag
- T}
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 4/X.228 [T4.228], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .LP
- .sp 2
- .sp 1P
- .LP
- 7.1.3
- \fIAssociation\(hyestablishment procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RT\(hyOPEN request primitive from the requestor
- (association\(hyinitiator);
- .LP
- b)
- an RTORQ APDU as user\(hydata on an A\(hyASSOCIATE indication
- primitive;
- .LP
- c)
- an RT\(hyOPEN response primitive from the acceptor
- (association\(hyresponder);
- .LP
- d)
- an A\(hyASSOCIATE confirm primitive that may contain either an RTOAC
- APDU, or an RTORJ APDU, or no APDU.
- .sp 1P
- .LP
- 7.1.3.1
- \fIRT\(hyOPEN request primitive\fR
- .sp 9p
- .RT
- .PP
- The requesting RTPM forms an RTORQ APDU from the parameter values of the
- RT\(hyOPEN request primitive and its internal data. The RT\(hyOPEN request
- primitive parameters, except user\(hydata, are stored by the requesting
- RTPM for association\(hyrecovery. The requesting RTPM issues an A\(hyASSOCIATE
- request
- primitive also using information from the RT\(hyOPEN request primitive.
- The RTORQ APDU is the user information parameter value of the A\(hyASSOCIATE
- request
- primitive.
- .PP
- The requesting RTPM waits for a primitive from the ACSE\(hyprovider and
- does not accept any other primitive from the requestor.
- .RT
- .sp 1P
- .LP
- 7.1.3.2
- \fIRTORQ APDU\fR
- .sp 9p
- .RT
- .PP
- If the application\(hyassociation is not accepted by the
- ACSE\(hyprovider, no A\(hyASSOCIATE indication primitive is received by
- the accepting RTPM and no action takes place.
- .PP
- If the application\(hyassociation is accepted by the ACSE\(hyprovider,
- the accepting RTPM receives the RTORQ APDU as the user information parameter
- on an A\(hyASSOCIATE indication primitive.
- .PP
- If any of the A\(hyASSOCIATE indication parameters or any of the RTORQ
- APDU fields is unacceptable to the accepting RTPM, or if the accepting
- RTPM is not able to accept the application\(hyassociation, it forms and
- sends an RTORJ
- APDU with appropriate parameters from internal data. The accepting RTPM
- issues an A\(hyASSOCIATE response primitive. The RTORJ APDU is sent as
- the user
- information parameter of the A\(hyASSOCIATE response primitive. The
- application\(hyassociation is not established. The accepting RTPM does
- not issue an RT\(hyOPEN indication.
- .bp
- .PP
- If the A\(hyASSOCIATE indication primitive and the RTORQ APDU parameters
- are acceptable to the accepting RTPM, it issues an RT\(hyOPEN indication
- primitive to the acceptor. The RT\(hyOPEN indication parameter values are
- derived from the RTORQ APDU and the A\(hyASSOCIATE indication primitive
- parameter values.
- .PP
- The accepting RTPM waits for an RT\(hyOPEN response primitive from the
- acceptor, or a primitive from the ACSE\(hyprovider.
- .RT
- .sp 1P
- .LP
- 7.1.3.3
- \fIRT\(hyOPEN response primitive\fR
- .sp 9p
- .RT
- .PP
- When the accepting RTPM receives an RT\(hyOPEN response primitive from
- the acceptor, the result parameter specifies whether the acceptor has accepted
- (value \*Qaccepted\*U) or rejected the application\(hyassociation.
- .PP
- If the application\(hyassociation is accepted by the acceptor, the
- accepting RTPM forms an RTOAC APDU using the RT\(hyOPEN response primitive
- parameters and internal data. The RT\(hyOPEN response primitive parameters,
- except user data, are stored by the accepting RTPM for association\(hyrecovery.
- .PP
- The accepting RTPM issues an A\(hyASSOCIATE response primitive also using
- information from the RT\(hyOPEN response primitive. The RTOAC APDU is sent
- as the user information parameter of the A\(hyASSOCIATE response primitive.
- .PP
- If the application\(hyassociation is rejected by the acceptor, the
- accepting RTPM forms a RTORJ APDU using the RT\(hyOPEN response primitive
- parameters and internal data. The accepting RTPM issues an
- A\(hyASSOCIATE
- response
- primitive also using information from the RT\(hyOPEN request primitive.
- The RTORJ APDU is sent as the user information parameter of the A\(hyASSOCIATE
- response
- primitive. The application\(hyassociation is not established.
- .RT
- .sp 1P
- .LP
- 7.1.3.4
- \fIA\(hyASSOCIATE confirm primitive\fR
- .sp 9p
- .RT
- .PP
- The requesting RTPM receives an A\(hyASSOCIATE confirm primitive. The following
- situations are possible:
- .RT
- .LP
- a)
- the application\(hyassociation has been accepted by the
- acceptor;
- .LP
- b)
- the accepting RTPM or the acceptor has rejected the
- application\(hyassociation; or
- .LP
- c)
- the ACSE service provider has rejected the
- application\(hyassociation.
- .PP
- If the application\(hyassociation was accepted by the acceptor, the A\(hyASSOCIATE
- confirm primitive result parameter has the value \*Qaccepted\*U and the
- RTOAC APDU is the value of the user information parameter of the A\(hyASSOCIATE
- confirm primitive. The requesting RTPM issues an RT\(hyOPEN confirm primitive
- to the requestor. The result parameter has the value \*Qaccepted\*U and
- the user\(hydata parameter contains the user\(hydata parameter value of
- the RTOAC APDU. The other parameters of the RT\(hyOPEN confirm primitive
- are derived from the A\(hyASSOCIATE
- confirm primitive.
- .PP
- If the application\(hyassociation was rejected by either the acceptor or
- the accepting RTPM, the
- A\(hyASSOCIATE confirm primitive result parameter has one
- of the values \*Qrejected\|.\|.\|.\*U, the A\(hyASSOCIATE confirm primitive
- result source parameter has the value \*QACSE service\(hyuser\*U and the
- RTORJ APDU is the value of the user information parameter of the A\(hyASSOCIATE
- confirm primitive. The
- requesting RTPM issues an RT\(hyOPEN confirm primitive to the requestor. The
- result parameter has one of the values \*Qrejected\|.\|.\|.\*U and the
- other parameter values are derived from the A\(hyASSOCIATE confirm primitive
- parameters and the
- RTORJ APDU. The application\(hyassociation is not established.
- .PP
- If the application\(hyassociation was rejected by the ACSE
- service\(hyprovider, the A\(hyASSOCIATE confirm primitive result parameter
- has one of the values \*Qrejected\|.\|.\|.\*U, the A\(hyASSOCIATE confirm
- primitive result source
- parameter has either the value \*QACSE service\(hyprovider\*U or \*Qpresentation
- service\(hyprovider\*U. The user\(hydata parameter of the RT\(hyOPEN confirm
- primitive is absent and the application\(hyassociation is not established.
- The other parameters of the RT\(hyOPEN confirm primitive are derived from
- the A\(hyASSOCIATE confirm
- primitive.
- .bp
- .RT
- .sp 1P
- .LP
- 7.1.4
- \fIUse of the RTORQ APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTORQ APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.1.4.1
- \fICheckpoint\(hysize\fR
- .sp 9p
- .RT
- .PP
- The checkpoint\(hysize field allows negotiation of the maximum amount of
- data (in units of 1024\ octets) that may be sent between two minor
- synchronization points. A value of zero from the requesting RTPM invites the
- accepting RTPM to select checkpoint\(hysize. If this field is absent,
- checkpoint\(hysize zero is assumed.
- .RT
- .sp 1P
- .LP
- 7.1.4.2
- \fIWindow\(hysize\fR
- .sp 9p
- .RT
- .PP
- The window\(hysize field allows negotiation of the maximum number of outstanding
- minor synchronization points before data transfer shall be
- suspended. If this field is absent, window\(hysize\ 3 is assumed.
- .RT
- .sp 1P
- .LP
- 7.1.4.3
- \fIDialogue\(hymode\fR
- .sp 9p
- .RT
- .PP
- This is the dialogue\(hymode parameter value from the RT\(hyOPEN request
- primitive. It appears as the dialogue\(hymode parameter value of the RT\(hyOPEN
- indication primitive.
- .PP
- The value of this field is either monologue, or two\(hyway\(hyalternate.
- If this field is absent, monologue is assumed.
- .RT
- .sp 1P
- .LP
- 7.1.4.4
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This is the user\(hydata parameter value from the RT\(hyOPEN request
- primitive. It appears as the user\(hydata paremeter value of the RT\(hyOPEN
- indication primitive.
- .PP
- The value of this field is transparent to the RTPM.
- .RT
- .sp 1P
- .LP
- 7.1.4.5
- \fISession\(hyconnection\(hyidentifier\fR
- .sp 9p
- .RT
- .PP
- This field is used only in the association\(hyrecovery procedure.
- .RT
- .sp 1P
- .LP
- 7.1.4.6
- \fIApplication\(hyprotocol\fR
- .sp 9p
- .RT
- .PP
- This field is used solely in the X.410\(hy1984 mode. It is the
- application\(hyprotocol parameter value from the RT\(hyOPEN request primitive.
- It
- appears as the application\(hyprotocol parameter value in the RT\(hyOPEN
- indication primitive.
- .RT
- .sp 1P
- .LP
- 7.1.5
- \fIUse of the RTOAC APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTOAC APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.1.5.1
- \fICheckpoint\(hysize\fR
- .sp 9p
- .RT
- .PP
- The checkpoint\(hysize field allows negotiation of the maximum amount of
- data (in units of 1024\ octets) that may be sent between two minor
- synchronization points. If the checkpoint\(hysize in the RTORQ APDU is greater
- than zero, the accepting RTPM shall supply a value in the RTOAC APDU that is
- less than or equal to the value in the RTORQ APDU, else the accepting RPTM
- may select checkpoint\(hysize. A value of zero from the accepting RTPM
- indicates that checkpointing will not be used. The value of this field
- becomes the agreed
- maximum value and governs both directions of transfer. If this field is
- absent, it is assumed that checkpointing will not be used.
- .RT
- .sp 1P
- .LP
- 7.1.5.2
- \fIWindow\(hysize\fR
- .sp 9p
- .RT
- .PP
- This field is only used if checkpoint\(hysize of the RTOAC APDU is
- greater than zero. The window\(hysize field allows negotiation of the maximum
- number of outstanding minor synchronization points before data transfer
- shall be suspended. The accepting RTPM shall supply a value that is less
- than or
- equal to the value in the RTORQ APDU. This becomes the agreed maximum size
- and governs both directions of transfer. If this field is absent, window\(hysize\
- 3 is assumed.
- .bp
- .RT
- .sp 1P
- .LP
- 7.1.5.3
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This is the user\(hydata parameter value from the RT\(hyOPEN response
- primitive. It appears as the user\(hydata parameter value of the RT\(hyOPEN
- confirm service primitive.
- .PP
- The value of this field is transparent to the RTPM.
- .RT
- .sp 1P
- .LP
- 7.1.5.4
- \fISession\(hyconnection\(hyidentifier\fR
- .sp 9p
- .RT
- .PP
- This field is used only in the association\(hyrecovery procedure.
- .RT
- .sp 1P
- .LP
- 7.1.6
- \fIUse of the RTORJ APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTORJ APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.1.6.1
- \fIRefuse\(hyreason\fR
- .sp 9p
- .RT
- .PP
- The refuse\(hyreason field is only used in the X.410\(hy1984 mode.
- .PP
- This field may contain one of the following values:
- .RT
- .LP
- .sp 1
- \(em
- rts\(hybusy
- The accepting RTPM, or the acceptor, is so loaded that it cannot
- support a new application\(hyassociation. The requesting RTPM should retry
- after a period of time. This value is either provided by the accepting
- RTPM, or is derived from the result parameter value \*Qrejected (transient)\*U
- of the RT\(hyOPEN response primitive from the acceptor. It appears as the
- result parameter value \*Qrejected (transient)\*U of the RT\(hyOPEN confirm
- primitive to the requestor.
- .LP
- \(em
- cannot recover
- This value is used only by the accepting RTPM in the
- association\(hyrecovery procedure if it is unable to accept an
- association\(hyrecovery.
- \(em
- validation failure
- The acceptor does not recognize the requestor's credentials as being
- valid for the proposed application\(hyassociation. This value is the
- user\(hydata parameter value of the RT\(hyOPEN response primitive from the
- acceptor. It appears as the user\(hydata parameter value of the RT\(hyOPEN
- confirm primitive to the requestor.
- .sp 1P
- .LP
- \(em
- unacceptable\(hydialogue\(hymode
- The acceptor does not accept the type of dialogue mode proposed for
- the application\(hyassociation. This value is the user\(hydata parameter value
- of the RT\(hyOPEN response primitive from the acceptor. It appears as the
- user\(hydata parameter value of the RT\(hyOPEN confirm primitive to the
- requestor.
- 7.1.6.2
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is only used in the normal mode:
- .PP
- This is the user\(hydata parameter value of the RT\(hyOPEN response
- primitive from the acceptor. It appears as the user\(hydata parameter value
- of the RT\(hyOPEN confirm primitive to the requestor.
- .PP
- The value of this field is transparent to the RTPM.
- .bp
- .RT
- .sp 2P
- .LP
- 7.2
- \fIAssociation\(hyrelease\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.2.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The association\(hyrelease procedure is used for the normal release of
- an application\(hyassociation by the association\(hyinitiator without loss
- of
- information in transit.
- .RT
- .sp 1P
- .LP
- 7.2.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.2.3
- \fIAssociation\(hyrelease procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RT\(hyCLOSE request primitive from the requestor
- (association\(hyinitiator);
- .LP
- b)
- an A\(hyRELEASE indication primitive;
- .LP
- c)
- an RT\(hyCLOSE response primitive from the acceptor
- (association\(hyresponder);
- .LP
- d)
- an A\(hyRELEASE confirm primitive.
- .sp 1P
- .LP
- 7.2.3.1
- \fIRT\(hyCLOSE request primitive\fR
- .sp 9p
- .RT
- .PP
- The requestor may issue an RT\(hyCLOSE request primitive only if it
- possesses the turn and if there is no outstanding RT\(hyTRANSFER confirm
- primitive. When an RT\(hyCLOSE request primitive is received from the requestor,
- the requesting (association\(hyinitiating) RTPM issues an A\(hyRELEASE
- request
- primitive. The reason parameter of the A\(hyRELEASE request primitive is the
- reason parameter of the RT\(hyCLOSE request primitive. The user information
- parameter of the A\(hyRELEASE request primitive is the user\(hydata parameter
- of the RT\(hyCLOSE request primitive.
- .PP
- \fINote\fR \ \(em\ No RT\(hyCLOSE request primitive parameters are present in
- X.410\(hy1984 mode.
- .PP
- The requesting RTPM waits for a primitive from the ACSE
- service\(hyprovider and does not accept any other primitive from the
- requestor.
- .RT
- .sp 1P
- .LP
- 7.2.3.2
- \fIA\(hyRELEASE indication primitive\fR
- .sp 9p
- .RT
- .PP
- The accepting RTPM receives the A\(hyRELEASE indication
- primitive.
- .PP
- It issues an RT\(hyCLOSE indication primitive to the acceptor. The
- RT\(hyCLOSE indication parameter values are derived from the A\(hyRELEASE
- indication primitive.
- .PP
- \fINote\fR \ \(em\ No RT\(hyCLOSE indication primitive parameters are present
- in
- X.410\(hy1984 mode.
- .PP
- The RTPM waits for a primitive from the acceptor or the used service provider.
- .RT
- .sp 1P
- .LP
- 7.2.3.3
- \fIRT\(hyCLOSE response primitive\fR
- .sp 9p
- .RT
- .PP
- When the accepting RTPM receives an RT\(hyCLOSE response primitive,
- the accepting RTPM issues an A\(hyRELEASE response primitive. The reason
- parameter of the A\(hyRELEASE response primitive is the reason parameter
- of the RT\(hyCLOSE
- response primitive. The user information parameter of the A\(hyRELEASE response
- primitive is the user\(hydata parameter of the RT\(hyCLOSE response primitive.
- The
- result parameter value of the A\(hyRELEASE response primitive is \*Qaffirmative\*U.
- .PP
- \fINote\fR \ \(em\ No RT\(hyCLOSE response primitive parameters are present in
- X.410\(hy1984 mode.
- .bp
- .RT
- .sp 1P
- .LP
- 7.2.3.4
- \fIA\(hyRELEASE confirm primitive\fR
- .sp 9p
- .RT
- .PP
- The requesting RTPM receives an A\(hyRELEASE confirm primitive.
- .PP
- The requesting RTPM issues an RT\(hyOPEN confirm primitive to the
- acceptor. The RT\(hyOPEN confirm primitive parameter values are derived
- from the A\(hyRELEASE confirm primitive.
- .PP
- \fINote\fR \ \(em\ No RT\(hyCLOSE confirm primitive parameters are present in
- X.410\(hy1984 mode.
- .RT
- .sp 2P
- .LP
- 7.3
- \fITransfer\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.3.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer procedure is used to transfer an RTSE\(hyuser APDU from the
- requestor (sender) to the acceptor (receiver).
- .RT
- .sp 1P
- .LP
- 7.3.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- Each RTSE\(hyuser APDU, conveyed in an RT\(hyTRANSFER request,
- constitutes an activity. For each application\(hyassociation, at most one
- activity, or one interrupted activity awaiting resumption, may exist at a
- time.
- .PP
- The RTSE\(hyuser APDU value is transformed into the encoded\(hyAPDU\(hyvalue
- and vice versa by means of the local syntax\(hymatching services. The transfer
- procedure uses the RT\(hyTRANSFER (RTTR) APDU. The transfer procedure supports
- segmenting and reassembling of the encoded\(hyAPDU\(hyvalue into/from one
- or more
- RTTR APDUs.
- .PP
- An encoded\(hyAPDU\(hyvalue is transferred as a single RTTR APDU if
- checkpointing is not used. Otherwise, the encoded\(hyAPDU\(hyvalue is transferred
- as a series of RTTR APDUs, the maximum size (i.e.\ number of octets forming
- the
- RTTR APDU value) of each being the negotiated checkpoint\(hysize. The
- concatenation of the RTTR APDU values is the encoded\(hyAPDU\(hyvalue.
- .PP
- The fields of the RTTR APDU are listed in Table 5/X.228.
- .RT
- .LP
- .sp 1
- .ce
- \fBH.T. [T5.228]\fR
- .ce
- TABLE\ 5/X.228
- .ce
- \fBRTTR APDU Fields\fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- User\(hydata\(hypart M req ind/conf
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 5/X.228 [T5.228], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .sp 1P
- .LP
- .sp 1
- 7.3.3
- \fITransfer procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RT\(hyTRANSFER request primitive from the requestor
- (sender);
- .LP
- b)
- a P\(hyACTIVITY\(hySTART indication primitive, followed by one or more
- RTTR APDUs as user\(hydata of P\(hyDATA indication primitives each, except
- the last, followed by a P\(hyMINOR\(hySYNCHRONIZE indication primitive;
- .LP
- c)
- a P\(hyMINOR\(hySYNCHRONIZE confirm primitive;
- .LP
- d)
- a P\(hyACTIVITY\(hyEND indication primitive;
- .LP
- e)
- a P\(hyACTIVITY\(hyEND confirm primitive;
- .LP
- f
- )
- a transfer time\(hyout.
- .bp
- .sp 1P
- .LP
- 7.3.3.1
- \fIRT\(hyTRANSFER request primitive\fR
- .sp 9p
- .RT
- .PP
- If the requesting RTPM possesses the turn and receives a
- RT\(hyTRANSFER request from the requestor, the requesting RTPM transforms the
- RTSE\(hyuser APDU value into the encoded\(hyAPDU\(hyvalue by means of the
- encoding
- service of the local syntax\(hymatching services.
- .PP
- The requesting RTPM issues a P\(hyACTIVITY\(hySTART request primitive and
- may start transmitting the first RTTR APDU in a P\(hyDATA request primitive
- immediately after the P\(hyACTIVITY\(hySTART request primitive is issued,
- since the latter service is not a confirmed service.
- .PP
- The maximum RTTR APDU size will have been negotiated during the
- association\(hyestablishment procedure. The requesting RTPM shall submit, in
- P\(hyDATA request primitives, RTTR APDUs that conform to that agreement.
- Checkpoints may only be inserted if a checkpoint\(hysize greater than zero was
- negotiated during the association\(hyestablishment procedure.
- .PP
- If a transferred RTTR APDU is not the last in a series of RTTR APDUs used
- to transfer a single encoded\(hyAPDU\(hyvalue, the requesting RTPM inserts
- a
- checkpoint by issuing a P\(hyMINOR\(hySYNCHRONIZE request primitive. The
- requesting RTPM uses only the \*Qexplicit confirmation expected\*U type
- of minor
- synchronization. The requesting RTPM may issue further P\(hyDATA request
- primitives and P\(hyMINOR\(hySYNCHRONIZE request primitives unless the agreed
- window\(hysize has been reached.
- .PP
- If the RTTR APDU is the only one, or the last in a series of RTTR
- APDUs used to transfer a single encoded\(hyAPDU\(hyvalue, the requesting
- RTPM issues a P\(hyACTIVITY\(hyEND request primitive.
- .PP
- Consecutive P\(hyDATA request primitives shall not be issued, and all
- data transfer shall take place within an activity.
- .RT
- .sp 1P
- .LP
- 7.3.3.2
- \fIP\(hyACTIVITY\(hySTART indication primitive, RTTR APDUs,\fR
- \fIand P\(hyMINOR\(hySYNCHRONIZE indication primitives\fR
- .sp 9p
- .RT
- .PP
- The accepting RTPM receives a P\(hyACTIVITY\(hySTART indication
- primitive, indicating the start of transfer of a RTSE\(hyuser APDU. The
- accepting RTPM receives an RTTR APDU as user\(hydata of a P\(hyDATA indication
- primitive.
- .PP
- If the RTTR APDU is not the last in a series of RTTR APDUs used to
- transfer a single encoded\(hyAPDU\(hyvalue, the accepting RTPM receives a
- P\(hyMINOR\(hySYNCHRONIZE indication primitive. If the accepting RTPM has
- secured the RTTR APDU, it issues a P\(hyMINOR\(hySYNCHRONIZE response primitive.
- .RT
- .sp 1P
- .LP
- 7.3.3.3
- \fIP\(hyMINOR\(hySYNCHRONIZE confirmed primitive\fR
- .sp 9p
- .RT
- .PP
- When the requesting RTPM receives a P\(hyMINOR\(hySYNCHRONIZE confirm
- primitive, it assumes that the accepting RTPM has secured the
- encoded\(hyAPDU\(hyvalue APDU up to that point.
- .PP
- The requesting RTPM may issue further P\(hyDATA request primitives and
- P\(hyMINOR\(hySYNCHRONIZE request primitives unless the agreed window\(hysize
- has been reached. The window is advanced when a P\(hyMINOR\(hySYNCHRONIZE
- confirm primitive is received by the requesting RTPM.
- .PP
- When a complete encoded\(hyAPDU\(hyvalue has been transmitted, the
- requesting RTPM issues a
- P\(hyACTIVITY\(hyEND request primitive.
- .RT
- .sp 1P
- .LP
- 7.3.3.4
- \fIP\(hyACTIVITY\(hyEND indication primitive\fR
- .sp 9p
- .RT
- .PP
- A P\(hyACTIVITY\(hyEND indication primitive indicates to the accepting
- RTPM that a complete encoded\(hyAPDU\(hyvalue has been transferred. The
- accepting
- RTPM transforms the encoded\(hyAPDU\(hyvalue into the RTSE\(hyuser APDU
- value by means of the decoding service of the local syntax\(hymatching\(hyservices.
- .PP
- If the accepting RTPM has secured the complete RTSE\(hyuser APDU, it
- issues an RT\(hyTRANSFER indication primitive to the acceptor, and issues a
- P\(hyACTIVITY\(hyEND response primitive.
- .PP
- The accepting RTPM records the session\(hyconnection\(hyidentifier and
- the activity identifier of the last RTSE\(hyuser APDU which it completely
- secured for association\(hyrecovery purposes.
- .bp
- .RT
- .sp 1P
- .LP
- 7.3.3.5
- \fIP\(hyACTIVITY\(hyEND confirm primitive\fR
- .sp 9p
- .RT
- .PP
- An activity end is an implicit major synchronization point and once successfully
- confirmed by means of an P\(hyACTIVITY\(hyEND confirm primitive, it
- indicates to the requesting RTPM that the RTSE\(hyuser APDU has been secured by
- the accepting RTPM. The requesting RTPM may then delete the transferred
- RTSE\(hyuser APDU.
- .PP
- When the requesting RTPM receives the P\(hyACTIVITY\(hyEND confirm
- primitive, it issues an RT\(hyTRANSFER confirm primitive with a result
- parameter value of \*QAPDU\(hytransferred\*U to the requestor.
- .RT
- .sp 1P
- .LP
- 7.3.3.6
- \fITransfer time\(hyout\fR
- .sp 9p
- .RT
- .PP
- If an APDU has not been transferred within the time specified in
- the transfer\(hytime parameter of the RT\(hyTRANSFER request primitive
- (that is, the requesting RTPM has not received the P\(hyACTIVITY\(hyEND
- confirm primitive), the
- requesting RTPM performs the transfer\(hydiscard procedure followed by the
- transfer\(hyabort procedure.
- .PP
- If during the transfer\(hydiscard procedure, the requesting RTPM does not
- receive a P\(hyACTIVITY\(hyDISCARD confirm primitive within a (locally
- specified)
- reasonable time, the requesting RTPM performs the transfer\(hyabort procedure
- followed by the provider\(hyabort procedure.
- .RT
- .sp 2P
- .LP
- 7.4
- \fITurn\(hyplease\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.4.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The turn\(hyplease procedure is used by a receiver (requestor) to
- request the turn from the sender (acceptor).
- .RT
- .sp 1P
- .LP
- 7.4.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The turn\(hyplease procedure uses the RT\(hyTURN\(hyPLEASE (RTTP) APDU.
- .PP
- The fields of the RTTP APDU are listed in Table 6/X.228.
- .RT
- .LP
- .ce
- \fBH.T. [T6.228]\fR
- .ce
- TABLE\ 6/X.228
- .ce
- \fBRTTP APDU Fields\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Priority U req ind
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 6/X.228 [T6.228], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .sp 1P
- .LP
- 7.4.3
- \fITurn\(hyplease procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- am RT\(hyTURN\(hyPLEASE request primitive from the requestor;
- .LP
- b)
- an RTTP APDU as user\(hydata of a P\(hyTOKEN\(hyPLEASE indication
- primitive.
- .sp 1P
- .LP
- 7.4.3.1
- \fIRT\(hyTURN\(hyPLEASE request primitive\fR
- .sp 9p
- .RT
- .PP
- If the requesting RTPM does not possess the turn and receives an
- RT\(hyTURN\(hyPLEASE request from the requestor, the requesting RTPM issues a
- P\(hyTOKEN\(hyPLEASE request primitive. If the priority parameter is present
- in the RT\(hyTURN\(hyPLEASE request primitive, and RTTP APDU is formed
- from the parameter
- value and transferred as user\(hydata of the P\(hyTOKEN\(hyPLEASE request
- primitive.
- This procedure may be performed either inside or outside an activity.
- .bp
- .RT
- .sp 1P
- .LP
- 7.4.3.2
- \fIRTTP APDU\fR
- .sp 9p
- .RT
- .PP
- If the accepting RTPM receives a P\(hyTOKEN\(hyPLEASE indication
- primitive, the accepting RTPM issues an RT\(hyTURN\(hyPLEASE indication
- primitive to the acceptor. If an RTTP APDU is transferred as user\(hydata
- of the P\(hyTOKEN\(hyPLEASE indication primitive, the RT\(hyTURN\(hyPLEASE
- indication primitive parameter is
- present and derived from the RTTP APDU.
- .RT
- .sp 1P
- .LP
- 7.4.4
- \fIUse of the RTTP fields\fR
- .sp 9p
- .RT
- .PP
- The RTTP APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.4.4.1
- \fIPriority\fR
- .sp 9p
- .RT
- .PP
- This is the priority parameter value of the RT\(hyTURN\(hyPLEASE request
- primitive. It appears as the priority parameter value of the RT\(hyTURN\(hyPLEASE
- indication primitive.
- .PP
- The value of this field is transparent to the RTPM.
- .RT
- .sp 2P
- .LP
- 7.5
- \fITurn\(hygive\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.5.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The turn\(hygive procedure is used by a sender (requestor) to give the
- turn to the receiver (acceptor). The requestor becomes the receiver and
- the
- acceptor becomes the sender.
- .RT
- .sp 1P
- .LP
- 7.5.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.5.3
- \fITurn\(hygive procedure\fR
- .sp 9p
- .RT
- .PP
- The turn\(hygive procedure is driven by the following
- events:
- .RT
- .LP
- a)
- an RT\(hyTURN\(hyGIVE request primitive;
- .LP
- b)
- a P\(hyCONTROL\(hyGIVE indication primitive.
- .sp 1P
- .LP
- 7.5.3.1
- \fIRT\(hyTURN\(hyGIVE request primitive\fR
- .sp 9p
- .RT
- .PP
- If the requesting RTPM possesses the turn and receives an
- RT\(hyTURN\(hyGIVE request primitive from the requestor, it issues a P\(hyCONTROL\(hyGIVE
- request primitive and becomes the receiving RTPM. This may be done only
- outside an activity.
- .RT
- .sp 1P
- .LP
- 7.5.3.2
- \fIP\(hyCONTROL\(hyGIVE indication primitive\fR
- .sp 9p
- .RT
- .PP
- If the accepting RTPM receives a P\(hyCONTROL\(hyGIVE indication
- primitive, the accepting RTPM issues an RT\(hyTURN\(hyGIVE indication primitive
- to
- the acceptor, and issues a P\(hyCONTROL\(hyGIVE response primitive. The
- accepting
- RTPM becomes the sending RTPM.
- .RT
- .LP
- 7.6
- \fIError reporting\fR
- .sp 1P
- .RT
- .sp 2P
- .LP
- 7.6.1
- \fIUser\(hyexception\(hyreport\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.6.1.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The user\(hyexception\(hyreport procedure is used by the receiving RTPM
- to report an error situation to the sending RTPM.
- .RT
- .sp 1P
- .LP
- 7.6.1.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .bp
- .RT
- .sp 1P
- .LP
- 7.6.1.3
- \fIUser\(hyexception\(hyreport procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- a receiving RTPM problem;
- .LP
- b)
- a P\(hyU\(hyEXCEPTION\(hyREPORT indication primitive.
- .sp 1P
- .LP
- 7.6.1.3.1
- \fIReceiving RTPM problem\fR
- .sp 9p
- .RT
- .PP
- If the receiving RTPM detects a problem, it issues a
- P\(hyU\(hyEXCEPTION\(hyREPORT request primitive and starts a local recovery
- timer.
- Depending on the severity of the detected error, the value of the reason
- parameter of the P\(hyU\(hyEXCEPTION\(hyREPORT request primitive is as
- follows:
- .RT
- .LP
- a)
- In severe problem situations, the velue \*Qreceiving ability jeopardized\*U
- is used.
- .LP
- b)
- In exceptional circumstances, the receiving RTPM may have to delete a
- partially received RTSE\(hyuser APDU, even though some minor
- synchromization points have been confirmed. In this case, the value
- \*Qunrecoverable procedure error\*U is used.
- .LP
- c)
- If the receiving RTPM is not willing to complete a transfer procedure,
- the value \*Qnon\(hyspecific error\*U is used.
- .LP
- d)
- If the sending RTPM resumes a transfer procedure already
- finished by the receiving RTPM (see clause\ 7.8.1.3.2), the value \*Qsequence
- error\*U is used.
- .LP
- e)
- For all other less severe error situations, the value \*Qlocal SS\(hyuser
- error\*U is used.
- .sp 1P
- .LP
- 7.6.1.3.2
- \fIP\(hyU\(hyEXCEPTION\(hyREPORT indication primitive\fR
- .sp 9p
- .RT
- .PP
- If the sending RTPM receives a P\(hyU\(hyEXCEPTION\(hyREPORT indication
- primitive, it performs one of the following procedures depending on the
- reason parameter value of the P\(hyU\(hyEXCEPTION\(hyREPORT indication
- primitive:
- .RT
- .LP
- a)
- With a value \*Qreceiving ability jeopardized\*U, the
- transfer\(hyabort procedure followed by the provider\(hyabort procedure are
- performed.
- .LP
- b)
- With a value \*Qunrecoverable procedure error\*U, the
- transfer\(hydiscard procedure followed by transfer\(hyretry procedure are
- performed.
- .LP
- c)
- With a value \*Qnon\(hyspecific error\*U, the transfer\(hydiscard
- procedure followed by the transfer\(hyabort procedure are performed.
- .LP
- d)
- With a value \*Qsequence error\*U, the transfer\(hydiscard
- procedure is performed and the requesting RTPM issues an RT\(hyTRANSFER confirm
- primitive with a result parameter value of \*QAPDU\(hytransferred\*U to
- the requestor and the transfer procedure is finished.
- .LP
- e)
- With a value \*Qlocal SS\(hyuser error\*U and at least one
- confirmed checkpoint in the transfer procedure, the transfer\(hyinterrupt
- procedure followed by the transfer\(hyresumption procedure are performed. If no
- checkpoint was confirmed in the transfer procedure, the transfer\(hydiscard
- procedure followed by the transfer\(hyretry procedure are performed.
- .sp 2P
- .LP
- 7.6.2
- \fIProvider\(hyexception\(hyreport\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.6.2.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- If the presentation service\(hyprovider detects an unexpected
- situation during an activity, not covered by other services, a
- P\(hyP\(hyEXCEPTION\(hyREPORT indication primitive is issued to both RTPMs.
- .RT
- .sp 1P
- .LP
- 7.6.2.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .bp
- .RT
- .sp 1P
- .LP
- 7.6.2.3
- \fIProvider\(hyexception\(hyreport procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- a P\(hyP\(hyEXCEPTION\(hyREPORT indication primitive.
- .sp 1P
- .LP
- 7.6.2.3.1
- \fIP\(hyP\(hyEXCEPTION\(hyREPORT indication primitive\fR
- .sp 9p
- .RT
- .PP
- The receiving RTPM receives a P\(hyP\(hyEXCEPTION\(hyREPORT indication
- primitive.
- .PP
- If the sending RTPM receives a P\(hyP\(hyEXCEPTION\(hyREPORT indication
- primitive, it may perform one of the following procedures:
- .RT
- .LP
- a)
- if at least one checkpoint was confirmed in the transfer
- procedure, the transfer\(hyinterrupt procedure followed by the
- transfer\(hyresumption procedure; or,
- .LP
- b)
- if no checkpoint was confirmed in the transfer procedure,
- the transfer\(hydiscard procedure followed by the transfer\(hyretry procedure;
- or,
- .LP
- c)
- the transfer\(hyabort procedure followed by the provider\(hyabort procedure.
- .LP
- 7.7
- \fIError handling\fR
- .sp 1P
- .RT
- .sp 2P
- .LP
- 7.7.1
- \fITransfer\(hyinterrupt\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.7.1.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyinterrupt procedure is used by the sending RTPM to
- handle a less severe (than those handled by the other error handling
- procedures) error situation during the transfer procedure, if at least one
- checkpoint was confirmed during the transfer procedure.
- .RT
- .sp 1P
- .LP
- 7.7.1.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.7.1.3
- \fITransfer\(hyinterrupt procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- a sending RTPM problem;
- .LP
- b)
- a P\(hyACTIVITY\(hyINTERRUPT indication primitive;
- .LP
- c)
- a P\(hyACTIVITY\(hyINTERRUPT confirm primitive.
- .sp 1P
- .LP
- 7.7.1.3.1
- \fISending RTPM problem\fR
- .sp 9p
- .RT
- .PP
- If the sending RTPM detects a less severe problem and at least one checkpoint
- was confirmed during the transfer procedure, it issues a
- P\(hyACTIVITY\(hyINTERRUPT request primitive with one of the following reason
- parameter values:
- .RT
- .LP
- a)
- \*Qnon\(hyspecific error\*U, if the problem was indicated by an
- error reporting procedure;
- .LP
- b)
- \*Qlocal SS\(hyuser error\*U, if the problem is a local sending
- RTPM problem.
- .sp 1P
- .LP
- 7.7.1.3.2
- \fIP\(hyACTIVITY\(hyINTERRUPT indication primitive\fR
- .sp 9p
- .RT
- .PP
- If the receiving RTPM receives a P\(hyACTIVITY\(hyINTERRUPT indication
- primitive, it issues a
- P\(hyACTIVITY\(hyINTERRUPT response primitive and starts a local recovery
- timer.
- .RT
- .sp 1P
- .LP
- 7.7.1.3.3
- \fIP\(hyACTIVITY\(hyINTERRUPT confirm primitive\fR
- .sp 9p
- .RT
- .PP
- If the sending RTPM receives a P\(hyACTIVITY\(hyINTERRUPT confirm
- primitive, it starts the transfer\(hyresumption procedure.
- .bp
- .RT
- .sp 2P
- .LP
- 7.7.2
- \fITransfer\(hydiscard\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.7.2.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hydiscard procedure is used by the sending RTPM to
- escape from a more severe (than those handled by the transfer\(hyinterrupt
- procedure) error situation, or a less severe error situation if no checkpoint
- was confirmed, during the transfer procedure.
- .RT
- .sp 1P
- .LP
- 7.7.2.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.7.2.3
- \fITransfer\(hydiscard procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- a sending RTPM problem;
- .LP
- b)
- a P\(hyACTIVITY\(hyDISCARD indication primitive;
- .LP
- c)
- a P\(hyACTIVITY\(hyDISCARD confirm primitive.
- .sp 1P
- .LP
- 7.7.2.3.1
- \fISending RTPM problem\fR
- .sp 9p
- .RT
- .PP
- If the sending RTPM detects a more severe problem, or a less severe problem
- if no checkpoint was confirmed during the transfer procedure, it issues
- a P\(hyACTIVITY\(hyDISCARD request primitive with one of the following
- Reason
- parameter values:
- .RT
- .LP
- a)
- \*Qnon\(hyspecific error\*U, if the problem was indicated by an
- error reporting procedure;
- .LP
- b)
- \*Qlocal SS\(hyuser error\*U, or \*Qunrecoverable procedural error\*U,
- if the problem is a local sending RTPM problem.
- .sp 1P
- .LP
- 7.7.2.3.2
- \fIP\(hyACTIVITY\(hyDISCARD indication primitive\fR
- .sp 9p
- .RT
- .PP
- If the receiving RTPM receives a P\(hyACTIVITY\(hyDISCARD indication
- primitive, it issues a P\(hyACTIVITY\(hyDISCARD response primitive. The
- receiving
- RTPM deletes all knowledge and contents of the associated RTSE\(hyuser
- APDU so far received.
- .PP
- If the receiving RTPM has already issued an RT\(hyTRANSFER indication
- primitive, it performs the association\(hyabort procedure. The abort\(hyreason
- field value of the RTAB APDU is \*Qtransfer\(hycompleted\*U. In this case
- the sending RTPM ends the transfer procedure with a positive RT\(hyTRANSFER
- confirm primitive and the association\(hyrecovery procedure is performed.
- .RT
- .sp 1P
- .LP
- 7.7.2.3.3
- \fIP\(hyACTIVITY\(hyDISCARD confirm primitive\fR
- .sp 9p
- .RT
- .PP
- The receipt of a P\(hyACTIVITY\(hyDISCARD confirm primitive by the
- sending RTPM signifies the completion of the transfer\(hydiscard procedure.
- .RT
- .sp 2P
- .LP
- 7.7.3
- \fIAssociation\(hyabort\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.7.3.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The association\(hyabort procedure is used by the RTPMs to handle the most
- severe error situations. This procedure can be performed between an
- RT\(hyTRANSFER request primitive and its corresponding RT\(hyTRANSFER confirm
- primitive.
- .RT
- .sp 1P
- .LP
- 7.7.3.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The association\(hyabort procedure uses the RT\(hyABORT (RTAB) APDU. The
- fields of the RTAB APDU are listed in Table\
- 7B/FX.228.
- .PP
- \fINote\fR \ \(em\ The RTAB APDU is also used by the provider\(hyabort and the
- user\(hyabort procedure.
- .bp
- .RT
- .ce
- \fBH.T. [T7.228]\fR
- .ce
- TABLE\ 7/X.228
- .ce
- \fBRTAB APDU Fields\fR
- .ce
- \fR
- .ps 9
- .vs 11
- .nr VS 11
- .nr PS 9
- .TS
- center box;
- cw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Field name Presence Source Sink
- _
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Abort\(hyreason T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- Reflected\(hyparameter T sp sp
- .T&
- lw(90p) | cw(30p) | cw(30p) | cw(30p) .
- User\(hydata U req ind
- _
- .TE
- .nr PS 9
- .RT
- .ad r
- \fBTable 7/X.228 [T7.228], p.\fR
- .sp 1P
- .RT
- .ad b
- .RT
- .sp 1P
- .LP
- 7.7.3.3
- \fIAssociation\(hyabort procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RTPM\(hyabort;
- .LP
- b)
- an RTAB APDU.
- .sp 1P
- .LP
- 7.7.3.3.1
- \fIRTPM\(hyabort\fR
- .sp 9p
- .RT
- .PP
- Either the receiving or the sending RTPM transfers an RTAB APDU to its
- peer as user\(hydata of an A\(hyABORT request primitive. If the RTPM is
- the\fR
- association\(hyinitiating RTPM, it performs the association recovery procedure.
- If the RTPM is the association\(hyresponding RTPM, it awaits association\(hyrecovery.
- The receiving RTPM starts a local recovery timer.
- .PP
- After successful association recovery, the sending RTPM performs the transfer\(hyresumption
- procedure.
- .RT
- .sp 1P
- .LP
- 7.7.3.3.2
- \fIRTAB APDU\fR
- .sp 9p
- .RT
- .PP
- Either the sending RTPM or the receiving RTPM may receive an RTAB APDU
- as user\(hydata of an A\(hyABORT indication primitive. If the RTPM is the
- association\(hyinitiating RTPM, it performs the association\(hyrecovery
- procedure. If the RTPM is the association\(hyresponding RTPM, it awaits
- association recovery.
- The receiving RTPM starts a local recovery timer.
- .PP
- After successful association recovery, the sending RTPM performs the transfer\(hyresumption
- procedure.
- .RT
- .sp 1P
- .LP
- 7.7.3.4
- \fIUse of the RTAB APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTAB APDU fields are used as follows:
- .RT
- .sp 1P
- .LP
- 7.7.3.4.1
- \fIAbort\(hyreason\fR
- .sp 9p
- .RT
- .PP
- This field may contain one of the following values:
- .RT
- .LP
- .sp 1
- \(em
- local\(hysystem\(hyproblem
- \(em
- invalid\(hyparameter
- The invalid parameters are specified in the reflected\(hyparameter
- field.
- \(em
- unrecognized\(hyactivity
- The sending RTPM shall perform the transfer\(hyabort procedure optionally
- followed by the provider\(hyabort procedure.
- \(em
- temporary\(hyproblem
- No attempt at association\(hyrecovery should be made for a period of
- time determined by a local rule.
- .LP
- \(em
- protocol\(hyerror
- Of the RTPM.
- \(em
- permanent\(hyerror
- This value is used solely by the provider\(hyabort procedure in normal
- mode.
- \(em
- user\(hyabort
- This value is used solely by the user\(hyabort procedure in normal
- mode.
- \(em
- transfer\(hycompleted
- The receiving RTPM could not discard an already completed
- transfer.
- .bp
- .sp 1P
- .LP
- 7.7.3.4.2
- \fIReflected\(hyparameter\fR
- .sp 9p
- .RT
- .PP
- The reflected\(hyparameter field is a bit string that identifies which
- parameters are regarded as invalid parameters in the primitive received
- from
- the used service by the aborting RTMP before the association\(hyabort.
- The order of the bits in the bit string is the same as the order of the
- parameters in the tables of service parameters in Recommendations\ X.217
- and\ X.216 (i.e.\ bit\ 1
- represents the first parameter,\ etc.).
- .RT
- .sp 1P
- .LP
- 7.7.3.4.3
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is not used in the association\(hyabort procedure.
- .bp
- .RT
- .sp 2P
- .LP
- 7.7.4
- \fIAssociation\(hyprovider\(hyabort\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.7.4.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The association\(hyprovider\(hyabort procedure is used to handle an
- ACSE\(hyprovider, or a presentation service\(hyprovider abort.
- .RT
- .sp 1P
- .LP
- 7.7.4.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.7.4.3
- \fIAssociation\(hyprovider\(hyabort procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following event:
- .RT
- .LP
- a)
- an AP\(hyABORT indication primitive.
- .sp 1P
- .LP
- 7.7.4.3.1
- \fIAP\(hyABORT indication primitive\fR
- .sp 9p
- .RT
- .PP
- An association\(hyprovider\(hyabort is indicated to both RTPMs by an
- AP\(hyABORT indication primitive, and may occur at any time.
- .PP
- After such an event, the association\(hyinitiating RTPM starts the
- association\(hyrecovery procedure. Both RTPMs start a local recovery timer.
- .PP
- If the association\(hyprovider\(hyabort procedure was performed during
- the transfer procedure, the sending RTPM starts the transfer\(hyresumption
- procedure after the association\(hyrecovery procedure is successfully completed.
- If the
- association\(hyrecovery procedure was not successfully completed, the sending
- RTPM performs the transfer\(hyerror procedure, and the provider\(hyabort
- procedure.
- .RT
- .LP
- 7.8
- \fIError recovery\fR
- .sp 1P
- .RT
- .sp 2P
- .LP
- 7.8.1
- \fITransfer\(hyresumption\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.8.1.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyresumption procedure is used by the sending RTPM to
- recover from:
- .RT
- .LP
- a)
- an error situation handled by the transfer\(hyinterrupt
- procedure; or,
- .LP
- b)
- an error situation handled by the association\(hyabort
- procedure during a transfer procedure. In this case the transfer\(hyresumption
- procedure is performed after an association\(hyrecovery procedure is successfully
- performed. If no checkpoint was confirmed in the interrupted transfer
- procedure, the transfer\(hydiscard procedure followed by the transfer\(hyretry
- procedure are performed after transfer\(hyresumption.
- .sp 1P
- .LP
- 7.8.1.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyresumption procedure uses the RTTR APDU (see clause
- 7.3.2).
- .RT
- .sp 1P
- .LP
- 7.8.1.3
- \fITransfer\(hyresumption procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- the resumption of an interrupted activity;
- .LP
- b)
- a P\(hyACTIVITY\(hyRESUME indication primitive.
- .PP
- After these events, the transfer procedure is used to continue
- (see clause\ 7.3.3).
- .bp
- .sp 1P
- .LP
- 7.8.1.3.1
- \fIResumption of an interrupted activity\fR
- .sp 9p
- .RT
- .PP
- The sending RTPM issues a P\(hyACTIVITY\(hyRESUME request primitive with
- parameters that link the resumed Activity to the previously interrupted
- one.
- .PP
- After the sending RTPM has issued the P\(hyACTIVITY\(hyRESUME request
- primitive and at least one checkpoint was confirmed in the interrupted
- transfer procedure, it continues the transfer procedure by issuing a P\(hyDATA
- request
- primitive for the RTTR APDU following the last confirmed checkpoint. If no
- checkpoint was confirmed in the interrupted transfer procedure, the
- transfer\(hydiscard procedure followed by the transfer\(hyretry procedure are
- performed.
- .RT
- .sp 1P
- .LP
- 7.8.1.3.2
- \fIP\(hyACTIVITY\(hyRESUME indication primitive\fR
- .sp 9p
- .RT
- .PP
- If the receiving RTPM receives a P\(hyACTIVITY\(hyRESUME indication
- primitive, it checks the Old Activity Identifier and the Old Session Connection
- Identifier parameters of the P\(hyACTIVITY\(hyRESUME indication primitive
- with the
- corresponding information (session\(hyconnection\(hyidentifier, and Activity
- Identifier) recorded for the last completely secured transfer (see
- clause\ 7.3.3.4).
- .PP
- If the information coincides, the receiving RTPM either:
- .RT
- .LP
- a)
- responds correctly to the sending RTPM according to the
- transfer procedure, but discards the data it receives, and does not issue an
- RT\(hyTRANSFER indication primitive; or,
- .LP
- b)
- performs the user\(hyexception\(hyreport procedure with a Reason parameter
- value of \*Qsequence error\*U.
- .PP
- If the information does not coincide, and the old Activity
- Identifier and the old Session Connection Identifier parameters match the
- corresponding information of the previously interrupted activity, the
- transfer\(hyresumption procedure continues as for the transfer procedure with a
- P\(hyDATA indication primitive for the RTTR APDU following the last confirmed
- checkpoint.
- .PP
- If the receiving RTPM cannot resume the activity, the receiving RTPM performs
- the user\(hyexception\(hyreport procedure or the association\(hyabort
- procedure.
- .RT
- .sp 2P
- .LP
- 7.8.2
- \fITransfer\(hyretry\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.8.2.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyretry procedure is used by the sending RTPM to recover
- from an error situation handled by the transfer\(hydiscard procedure.
- .PP
- The completion of this procedure is as for the transfer
- procedure.
- .RT
- .sp 1P
- .LP
- 7.8.2.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyretry procedure uses the RTTR APDU (see
- clause\ 7.3.2).
- .RT
- .sp 1P
- .LP
- 7.8.2.3
- \fITransfer\(hyretry procedure\fR
- .sp 9p
- .RT
- .PP
- The sending RTPM performs the transfer procedure (see
- clause\ 7.3.3). A new Activity Identifier parameter value is used in the
- P\(hyACTIVITY\(hySTART request primitive.
- .RT
- .sp 2P
- .LP
- 7.8.3
- \fIAssociation\(hyrecovery\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.8.3.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The association\(hyrecovery procedure is used by the
- association\(hyinitiating RTPM to recover from an error situation handled
- by the association\(hyabort procedure or the association\(hyprovider\(hyabort
- procedure.
- .RT
- .sp 1P
- .LP
- 7.8.3.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The association\(hyrecovery procedure uses the RT\(hyOPEN\(hyREQUEST (RTORQ)
- APDU, the RT\(hyOPEN\(hyACCEPT (RTOAC) APDU, and the RT\(hyOPEN\(hyREJECT
- (RTORJ)
- APDU.
- .bp
- .RT
- .sp 1P
- .LP
- 7.8.3.2.1
- \fIRTORQ APDU\fR
- .sp 9p
- .RT
- .PP
- The RT\(hyOPEN\(hyREQUEST (RTORQ) APDU is used in the request to recover
- an application\(hyassociation. The fields of the RTORQ APDU are listed
- in
- clause\ 7.1.2.1.
- .PP
- The following rules apply:
- .RT
- .LP
- a)
- the User\(hydata field is not used;
- .LP
- b)
- the Session\(hyconnection\(hyidentifier field is mandatory.
- .sp 1P
- .LP
- 7.8.3.2.2
- \fIRTOAC APDU\fR
- .sp 9p
- .RT
- .PP
- The RT\(hyOPEN\(hyACCEPT (RTOAC) APDU is used in the positive response
- to the request to recover an application\(hyassociation. The fields of
- the RTOAC APDU are listed in clause\ 7.1.2.2.
- .PP
- The following rules apply:
- .RT
- .LP
- a)
- the User\(hydata field is not used;
- .LP
- b)
- the Session\(hyconnection\(hyidentifier field is mandatory.
- .sp 1P
- .LP
- 7.8.3.2.3
- \fIRTORJ APDU\fR
- .sp 9p
- .RT
- .PP
- The RT\(hyOPEN\(hyREJECT (RTORJ) APDU is used in the negative response
- to the request to recover an application\(hyassociation. The fields of
- the RTORJ APDU are listed in clause\ 7.1.2.3.
- .PP
- The following rules apply:
- .RT
- .LP
- a)
- the Refuse\(hyreason field is used solely in the X.410\(hy1984
- mode;
- .LP
- b)
- the User\(hydata field is not used.
- .sp 1P
- .LP
- 7.8.3.3
- \fIAssociation\(hyrecovery procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an A\(hyASSOCIATE request primitive by the
- association\(hyinitiating RTPM;
- .LP
- b)
- an RTORQ APDU as user\(hydata on an A\(hyASSOCIATE indication
- primitive;
- .LP
- c)
- an A\(hyASSOCIATE confirm primitive that may contain either an RTOAC
- APDU, or an RTORJ, or no APDU.
- .sp 1P
- .LP
- 7.8.3.3.1
- \fIA\(hyASSOCIATE request primitive\fR
- .sp 9p
- .RT
- .PP
- The association\(hyinitiating RTPM forms an RTORQ APDU from its
- internal data. The association\(hyinitiating RTPM issues an A\(hyASSOCIATE
- request
- primitive using information stored during the association\(hyestablishment
- procedure (see clause\ 7.1.3.1). The RTORQ APDU is the User Information
- parameter value of the A\(hyASSOCIATE request primitive.
- .PP
- The association\(hyinitiating RTPM waits for a primitive from the ACSE
- service\(hyprovider.
- .RT
- .sp 1P
- .LP
- 7.8.3.3.2
- \fIRTORQ APDU\fR
- .sp 9p
- .RT
- .PP
- If the application\(hyassociation is not accepted by the ACSE
- service\(hyprovider, no A\(hyASSOCIATE indication primitive is received by the
- association\(hyresponding RTPM and no action takes place.
- .PP
- If the application\(hyassociation is accepted by the ACSE
- service\(hyprovider, the association\(hyresponding RTPM receives the RTORQ
- APDU as
- the User Information parameter on an A\(hyASSOCIATE indication primitive.
- .PP
- If any of the A\(hyASSOCIATE indication primitive parameters, or any of
- the RTORQ APDU fields, is unacceptable to the association\(hyresponding
- RTPM, or if the association\(hyresponding RTPM is not able to accept the
- application\(hyassociation, it forms and sends an RTORJ APDU with appropriate
- parameters from internal data. The association\(hyresponding RTPM issues an
- A\(hyASSOCIATE response primitive. The RTORJ APDU is sent as the User Information
- parameter of the A\(hyASSOCIATE response primitive. The application\(hyassociation
- is not recovered.
- .bp
- .PP
- If the A\(hyASSOCIATE indication primitive parameters, and the RTORQ APDU
- fields are acceptable to the association\(hyresponding RTPM, the
- association\(hyresponding RTPM forms an RTOAC APDU using
- internal data. The association\(hyresponding RTPM issues an A\(hyASSOCIATE
- response primitive. The RTOAC APDU is sent as the User Information parameter
- of the
- A\(hyASSOCIATE response primitive.
- .RT
- .sp 1P
- .LP
- 7.8.3.3.3
- \fIA\(hyASSOCIATE confirm primitive\fR
- .sp 9p
- .RT
- .PP
- The association\(hyinitiating RTPM receives an A\(hyASSOCIATE confirm
- primitive. The following situations are possible:
- .RT
- .LP
- a)
- the association\(hyrecovery has been accepted;
- .LP
- b)
- the accepting RTPM has rejected the association\(hyrecovery;
- or
- .LP
- c)
- the ACSE service provider has rejected the
- association\(hyrecovery.
- .PP
- If the association\(hyrecovery was accepted, the A\(hyASSOCIATE confirm
- primitive Result parameter has the value \*Qaccepted\*U and the RTOAC APDU
- is the value of the User Information Parameter of the A\(hyASSOCIATE confirm
- primitive. The application\(hyassociation is recovered successfully, and
- if the
- association\(hyabort occurred during the transfer procedure, the sending RTPM
- continues with the transfer\(hyresumption procedure.
- .PP
- If the association\(hyrecovery was rejected by the responding RTPM, the
- A\(hyASSOCIATE confirm primitive Result parameter has one of the values
- \*Qrejected\|.\|.\|.\*U, the A\(hyASSOCIATE confirm primitive Result Source
- parameter has the value \*QACSE service\(hyuser\*U and the RTORJ APDU is
- the value of the User
- Information Parameter of the A\(hyASSOCIATE confirm primitive. The
- application\(hyassociation is not recovered.
- .PP
- If the association\(hyrecovery was rejected by the ACSE service\(hyprovider,
- the A\(hyASSOCIATE confirm primitive Result parameter has one of the values
- \*Qrejected\|.\|.\|.\*U and the A\(hyASSOCIATE confirm primitive Result
- Source parameter has either the value \*QACSE service\(hyprovider\*U or
- \*Qpresentation
- service\(hyprovider\*U. The application\(hyassociation is not recovered.
- .PP
- If the application\(hyassociation was not recovered, the
- association\(hyrecovery procedure is performed again by the association\(hyinitiating
- RTPM after a time determined by a local rule:
- .RT
- .LP
- a)
- if the Result parameter of the A\(hyASSOCIATE confirm primitive has the
- following value \*Qrejected (transient)\*U; or
- .LP
- b)
- if, in X.410\(hy1984 mode, the Refuse\(hyreason field of the RTORJ APDU
- has the value \*Qrts\(hybusy\*U.
- .PP
- In all other cases a provider\(hyabort is performed as follows.
- .PP
- If the association\(hyinitiating RTPM is the sending RTPM, and the
- association\(hyabort occurred during the transfer procedure, the sending RTPM
- performs the transfer\(hyabort procedure. The association\(hyinitiating
- RTPM performs the provider\(hyabort procedure.
- .PP
- If the association\(hyresponding RTPM detects a recovery\(hytime\(hyout, the
- following actions take place. If the association\(hyresponding RTPM is
- the sending RTPM, and the association\(hyabort occurred during the transfer
- procedure, the
- sending RTPM performs the transfer\(hyabort procedure. The association\(hyresponding
- RTPM performs the provider\(hyabort procedure.
- .RT
- .sp 1P
- .LP
- 7.8.3.4
- \fIUse of the RTORQ APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTORQ APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.8.3.4.1
- \fICheckpoint\(hysize\fR
- .sp 9p
- .RT
- .PP
- See clause 7.1.4.1.
- .RT
- .sp 1P
- .LP
- 7.8.3.4.2
- \fIWindow\(hysize\fR
- .sp 9p
- .RT
- .PP
- See clause 7.1.4.2.
- .RT
- .sp 1P
- .LP
- 7.8.3.4.3
- \fIDialogue\(hymode\fR
- .sp 9p
- .RT
- .PP
- See clause 7.1.4.3.
- .bp
- .RT
- .sp 1P
- .LP
- 7.8.3.4.4
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is not used in the association\(hyrecovery procedure.
- .RT
- .sp 1P
- .LP
- 7.8.3.4.5
- \fISession\(hyconnection\(hyidentifier\fR
- .sp 9p
- .RT
- .PP
- The Session\(hyconnection\(hyidentifier is used to specify the original
- session connection used in the association\(hyestablishment procedure.
- This is
- used in order to relate the new session\(hyconnection to the existing
- application\(hyassociation.
- .RT
- .sp 1P
- .LP
- 7.8.3.5
- \fIUse of the RTOAC APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTOAC APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.8.3.5.1
- \fICheckpoint\(hysize\fR
- .sp 9p
- .RT
- .PP
- See clause 7.1.5.1.
- .RT
- .sp 1P
- .LP
- 7.8.3.5.2
- \fIWindow\(hysize\fR
- .sp 9p
- .RT
- .PP
- See clause 7.1.5.2.
- .RT
- .sp 1P
- .LP
- 7.8.3.5.3
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is used only in the association\(hyrecovery procedure.
- .RT
- .sp 1P
- .LP
- 7.8.3.5.4
- \fISession\(hyconnection\(hyidentifier\fR
- .sp 9p
- .RT
- .PP
- The Session\(hyconnection\(hyidentifier is used to specify the original
- session connection used in the association\(hyestablishment procedure.
- This is
- used in order to relate the new session\(hyconnection to the existing
- application\(hyassociation.
- .RT
- .sp 1P
- .LP
- 8.3.6
- \fIUse of the RTORJ APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTORJ APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.8.3.6.1
- \fIRefuse\(hyreason\fR
- .sp 9p
- .RT
- .PP
- The Refuse\(hyreason field is used solely in the X.410\(hy1984 mode.
- .PP
- This field may contain one of the following values:
- .RT
- .LP
- .sp 1
- \(em
- rts\(hybusy
- The association\(hyresponding RTPM is so loaded that it cannot support
- the application\(hyassociation. The association\(hyinitiating RTPM should
- retry after a period of time. This value is provided by the
- association\(hyresponding RTPM.
- \(em
- cannot recover
- This value is used by the association\(hyresponding RTPM, if it is unable
- to accept an association\(hyrecovery.
- .sp 1P
- .LP
- 7.8.3.6.4
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is not used in the association\(hyrecovery procedure.
- .RT
- .sp 1P
- .LP
- 7.9
- \fIAbort\fR
- .sp 9p
- .RT
- .PP
- These procedures are performed when a successful recovery from one of the
- error handling procedures is not possible.
- .bp
- .RT
- .sp 2P
- .LP
- 7.9.1
- \fITransfer\(hyabort\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.9.1.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The transfer\(hyabort procedure is used by the sending RTPM if the
- transfer of an RTSE\(hyuser APDU is not possible.
- .RT
- .sp 1P
- .LP
- 7.9.1.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- No APDUs are used in this procedure.
- .RT
- .sp 1P
- .LP
- 7.9.1.3
- \fITransfer\(hyabort procedure\fR
- .sp 9p
- .RT
- .PP
- The sending RTPM issues an RT\(hyTRANSFER confirm primitive with a
- Result parameter value \*QAPDU\(hynot\(hytransferred\*U. The APDU parameter
- value is the RTSE\(hyuser APDU not transferred.
- .RT
- .sp 2P
- .LP
- 7.9.2
- \fIProvider\(hyabort\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.9.2.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The provider\(hyabort procedure is used by the RTPMs, if recovery is not
- possible.
- .RT
- .sp 1P
- .LP
- 7.9.2.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- If an application\(hyassociation exists, the provider\(hyabort procedure
- uses the RT\(hyABORT (RTAB) APDU. The RTAB APDU is specified in
- clause\ 7.7.3.2.
- .RT
- .sp 1P
- .LP
- 7.9.2.3
- \fIProvider\(hyabort procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RTPM\(hyabort;
- .LP
- b)
- an RTAB APDU;
- .LP
- c)
- local recovery time\(hyout.
- .sp 1P
- .LP
- 7.9.2.3.1
- \fIRTPM\(hyabort\fR
- .sp 9p
- .RT
- .PP
- If an application\(hyassociation exists, either the receiving or the sending
- RTPM transfers an RTAB APDU to its peer as the User\(hydata parameter of
- an A\(hyABORT request primitive. The RTPM issues a RT\(hyP\(hyABORT indication
- primitive to its RTSE\(hyuser.
- .RT
- .sp 1P
- .LP
- 7.9.2.3.2
- \fIRTAB APDU\fR
- .sp 9p
- .RT
- .PP
- If the sending or the receiving RTPM receives an RTAB APDU as the User\(hydata
- parameter of an A\(hyABORT indication primitive, it issues an RT\(hyP\(hyABORT
- indication primitive to its RTSE\(hyuser.
- .RT
- .sp 1P
- .LP
- 7.9.2.3.3
- \fIRecovery time\(hyout\fR
- .sp 9p
- .RT
- .PP
- If an application\(hyassociation does not exist and a local recovery time\(hyout
- occurs, the RTPM issues an RT\(hyP\(hyABORT indication primitive to its
- RTSE\(hyuser.
- .RT
- .sp 1P
- .LP
- 7.9.2.4
- \fIUse of the RTAB APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTAB APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.9.2.4.1
- \fIAbort\(hyreason\fR
- .sp 9p
- .RT
- .PP
- The value of this field is \*Qpermanent\(hyerror\*U.
- .bp
- .RT
- .sp 1P
- .LP
- 7.9.2.4.2
- \fIReflected\(hyparameter\fR
- .sp 9p
- .RT
- .PP
- This field is not used.
- .RT
- .sp 1P
- .LP
- 7.9.2.4.3
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This field is not used.
- .RT
- .sp 2P
- .LP
- 7.9.3
- \fIUser\(hyabort\fR
- .sp 1P
- .RT
- .sp 1P
- .LP
- 7.9.3.1
- \fIPurpose\fR
- .sp 9p
- .RT
- .PP
- The user\(hyabort procedure is used by the requestor to abort an
- application\(hyassociation.
- .RT
- .sp 1P
- .LP
- 7.9.3.2
- \fIAPDUs used\fR
- .sp 9p
- .RT
- .PP
- The user\(hyabort procedure uses the RT\(hyABORT (RTAB) APDU. The RTAB
- APDU is specified in clause\ 7.7.3.2.
- .RT
- .sp 1P
- .LP
- 7.9.3.3
- \fIUser\(hyabort procedure\fR
- .sp 9p
- .RT
- .PP
- This procedure is driven by the following events:
- .RT
- .LP
- a)
- an RT\(hyU\(hyABORT request primitive from the requestor;
- .LP
- b)
- an RTAB APDU as User\(hydata of an A\(hyABORT indication
- primitive.
- .sp 1P
- .LP
- 7.9.3.3.1
- \fIRT\(hyU\(hyABORT request\fR
- .sp 9p
- .RT
- .PP
- If the requesting RTPM receives an RT\(hyU\(hyABORT request primitive
- from the requestor, an RTAB APDU is formed from the parameter value of the
- RT\(hyU\(hyABORT request primitive and transferred as User\(hydata of an
- A\(hyABORT request primitive.
- .RT
- .sp 1P
- .LP
- 7.9.3.3.2
- \fIRTAB APDU\fR
- .sp 9p
- .RT
- .PP
- If the accepting RTPM receives the RTAB APDU as User\(hydata of an
- A\(hyABORT indication primitive, the accepting RTPM issues an RT\(hyU\(hyABORT
- indication primitive to the acceptor. The RT\(hyU\(hyABORT primitive parameter
- is
- derived from the RTAB APDU.
- .RT
- .sp 1P
- .LP
- 7.9.3.4
- \fIUse of the RTAB APDU fields\fR
- .sp 9p
- .RT
- .PP
- The RTAB APDU fields are used as follows.
- .RT
- .sp 1P
- .LP
- 7.9.3.4.1
- \fIAbort\(hyreason\fR
- .sp 9p
- .RT
- .PP
- The value of this field is \*Quser\(hyerror\*U.
- .RT
- .sp 1P
- .LP
- 7.9.3.4.2
- \fIReflected\(hyparameter\fR
- .sp 9p
- .RT
- .PP
- This field is not used.
- .RT
- .sp 1P
- .LP
- 7.9.3.4.3
- \fIUser\(hydata\fR
- .sp 9p
- .RT
- .PP
- This is the User\(hydata parameter value of the RT\(hyU\(hyABORT request
- primitive. It appears as the User\(hydata parameter value of the RT\(hyU\(hyABORT
- indication primitive.
- .RT
- .sp 1P
- .LP
- 7.10
- \fIRules for extensibility\fR
- .sp 9p
- .RT
- .PP
- In addition to the procedures stated above the following rule also applies
- when
- processing APDUs defined in this Recommendation:
- .RT
- .LP
- \(em
- Ignore parameters which are not defined in this
- Recommendation for RTORQ, RTOAC, and RTORJ APDUs.
- .LP
- .bp
-