Expand Management Programming Manual

SECTION 8
EVENT MANAGEMENT
The EXPAND subsystem provides information about events that it
detects by issuing event messages. A management application
can obtain these event messages by opening an Event Management
Service (EMS) distributor process and requesting the messages.
The application can also specify that a filter be applied to
select certain event messages. This section describes the event
messages that the EXPAND subsystem can issue and the specific
programming considerations for dealing with EXPAND event messages
in an application. For general information on how an application
obtains event messages from a subsystem, refer to the Event
Management Service (EMS) Manual .
In this section, event-message tokens and their values are
represented in DDL. For a quick explanation of DDL as it applies
to SPI, refer to the appendix "Overview of DDL for SPI" in the
Distributed Systems Management (DSM) Programming Manual .
SUBSYSTEM PROCESSES THAT REPORT EVENTS
Event messages issued by the EXPAND subsystem are generated by
the line-handler processes and by the Network Control Process
(NCP).
All event messages issued by the EXPAND subsystem contain the
EXPAND subsystem ID, which is described in Section 6, "Common
Definitions." For more information about subsystem IDs, refer to
the Distributed Systems Management (DSM) Programming Manual .
8-1