This part of ISO/IEC ISP 12060 specifies the General event report management profile, AOM221, which is applicable to end systems operating in the Open Systems Interconnection (OSI) environment. AOM221 specifies a combination of OSI standards which collectively provide General event report management. General event report management provides a means for selecting which notifications (generated by managed objects) are sent by an open system and where they are sent; this process of selection is referred to as discrimination and the criteria for selectio n are specified in an Event Forwarding Discriminator (EFD) support managed object.
AOM221 also provides a means for initiating, terminating, suspendin g and resuming the sending of event reports as well as modification of the selection criteria. These capabilities are achieved by a set of operations upon, and a set of notifications generated by, the EFD object.
AOM221 also specifies use of a combination of standards that collectively provide the subset of the Common Management Information Se rvice required by this part of ISO/IEC ISP 12060.
The support of the complete set of operation and notification services and of the management attributes does not imply that all these features shall be used in all instances of communication. The selection of the features depends on the requirements of the MIS users.
The definitions and conventions used in this part of ISO/IEC ISP 12060 are specified in ISO/IEC ISP 12059-0, Common definitions for management function profiles.
AOM221 is applicable in an environment in which end systems are able to take a manager role, an agent role or both. A system acting in the role of a manager is capable of requesting the specified set of operations upon an Event Forwarding Discriminator support managed object which is in the system acting in the role of an agent; the notifications that are discriminted upon are also in the system acting in the role of an agent.
Figure 1 illustrates only one of those configurations, one in which one system is acting in a manager role and a further syst em is acting in the agent role. Note that the system acting in the manager role for the purposes of AOM221 is not necessarily the same system which receives the discriminted notifications.
The roles of manager and agent may be determined in advance, for the duration of an association or the duration of a single management interaction. The application context is defined in Systems Management Overview (ISO/IEC 10040).
NOTE - Negotiation of functional units is optional.
AOM221 references the following standards:
(Application Layer): ISO/IEC 10164-5, Event report management function; ISO/IEC 10164-1, Object management function; ISO/IEC 10164-2, State management function; ISO/IEC 10165-2, Definition of ma nagement information; ISO/IEC 9595, 9596-1, CMIS and CMIP; ISO/IEC 9072-1, 2, ROSE, ISO/IEC ISP 11183-2, CMISE/ROSE for AOM12 - Enhanced management communications; ISO 8649, 8650, ACSE; ISO/IEC ISP 11183-1, Specification of ACSE, Presentation and Session.
(Presentation Layer): ISO 8822, 8823, Presentation; ISO/IEC 8824, 8825, ASN.1; ISO/IEC ISP 11183-1, Specification of ACSE, Presentation and Session.
(Session Layer): ISO 8822, 8823, Session; ISO/IEC 8326/Add.2; ISO/IEC 8327/Add.2; ISO/IEC ISP 11183-1, Specification of ACSE, Presentation and Session.
AOM221 includes by reference the subset of the Enhanced Management Communications profile (AOM12) that is required to support the above services.
NOTE - Refer to the description of AOM12 for further information about the communications support including specification of the protocol stack.
A claim to conformance of AOM221 must include a statement of notifications (beyond those of the EFD itself) on which the implementation can discriminate. This statement may be given by: (1) a list of objects supported, (2) a list of standardized notifications, (3) a list of parameters filtered, (4) or other statement of more general capabilities.
Claims of conformance to both objects and AOM221 require that all notifications of all objects can be discriminated.
An end system implementing AOM221 can interwork with an end system implementing the same profile in a complementary role. A sy stem implementing the Enhanced Management Communications profile (AOM12) will be compatible with the communications aspects of AOM221.
1.3 Position within the Taxonomy
AOM221 is identified in ISO/IEC TR 10000-2 as:
AOMnn - OSI Management;
AOM2 - Management Functions;
AOM22 - Event Report Management;
AOM221 - General Event Report Management.
AOM221 may be combined with any T-Profile (identified in ISO/IEC TR 10000-2) specifying the OSI connection-mode transport service.