ISO/IEC-15954 › Information technology -- Open Systems Interconnection -- Connection-mode protocol for the Application Service Object Association Control Service Element
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The ACSE supports two modes of communication: connection-mode and connectionless-mode. The ACSE service definition (see ITU-T Rec. X.217 bis | ISO/IEC 15953) includes both modes of communication. This Recommendation | International Standard only includes the connection mode of communication. This Recommendation | International Standard for the connectionless mode of communication is contained in ITU-T Rec. X.237 bis | ISO/IEC 15955.
This Recommendation | International Standard defines procedures that are applicable to instances of communication between systems which wish to interconnect in an open systems interconnection environment in a connection mode. This Recommendation | International Standard includes the Kernel functional unit that is used to establish and release ASO-associations. The Authentication functional unit provides additional facilities for exchanging information in support of authentication during association establishment without adding new services. The ACSE authentication facilities can be used to support a limited class of authentication methods. The ASO-context negotiation functional unit provides the additional facility for the recipient to select the ASO-context from a list offered by the initiator during association establishment. The optional Higher Level Association functional unit provides for the facility to identify ASO-associations and transparently pass data to child ASOs and allows the ASO-context or the presentation context on an ASO-association to be modified during the lifetime of the association.
This Recommendation | International Standard specifies:
- procedures for the transfer of information for ASO-association control and the authentication of ASOs and application-entities; and
- the abstract syntax for the representation of the ACSE APDUs.
The ACSE procedures are defined in terms of:
- the interactions among peer ACSE protocol machines through the use of Presentation services or supporting ACSE services; and
- the interaction between an ACSE protocol machine and its service-user.
This Recommendation | International Standard also specifies conformance requirements for systems implementing these procedures. It does not contain tests which can be used to demonstrate conformance.
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Document Number
ISO/IEC 15954:1999
Revision Level
1ST EDITION
Status
Current
Publication Date
Dec. 15, 1999
Committee Number
ISO/IEC JTC 1