DICOM PS3.8 2019b - Network Communication Support for Message Exchange

7.2 A-RELEASE Service

The graceful release of an association between two AEs shall be performed through ACSE A-RELEASE request, indication, response, and confirmation primitives. The initiator of the service is hereafter called a requestor and the service-user that receives the A-RELEASE indication is hereafter called the acceptor. It shall be a confirmed service.

Figure 7-2 illustrates the graceful release of an association between two AEs.

Association Release

Figure 7-2. Association Release


7.2.1 A-RELEASE Parameters

Table 7-4 lists the parameters for the A-RELEASE service that shall contain fixed values or shall not be used by DICOM Application Entities in this Standard.

Table 7-4. A-RELEASE Service Parameters

A-RELEASE parameter name

Request

Indication

Response

Confirmation

reason

UF

UF(=)

UF

UF(=)

user information

NU

NU(=)

NU

NU(=)

result

MF

MF(=)


7.2.1.1 Reason (Fixed)

When used on the request primitive, this parameter identifies the general level of urgency of the request. This parameter shall always use the value "normal" in this Standard.

7.2.1.2 Result (Fixed)

This parameter shall always take the value "affirmative" in this Standard.

DICOM PS3.8 2019b - Network Communication Support for Message Exchange