OSI/TS Management Programming Manual

OSI/TS Subsystem Architecture
Introduction
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Event-Management
Interface
Event messages from OSI/TS are made available to management applications by the
Event Management Service (EMS). EMS collects, logs, and distributes event messages
that provide information to help you monitor the network environment, analyze
failures, and recognize and handle critical problems.
Figure 1-3 illustrates the event-management interface to OSI/TS.
Figure 1-3. Event-Management Interface to OSI/TS
Management
Application
Consumer
Distributor
Event
Messages
Event
Messages
Event
Management
Interface
Collector
Filter
Event
Log
Event
Messages
Event Management
Service (EMS)
020
TSP
Processes for
Other
Subsystems
The following steps summarize the activities shown in Figure 1-3:
1. An event occurs in the subsystem environment.
2. A subsystem process reports the event by sending an event message to the local
EMS collector. Note that these processes send event messages directly to the
collector, not through SCP.
3. The collector stores the event message in a disk file called the event log.
4. If a forwarding distributor is present, it forwards the event message to a collector
on a remote node. That collector stores the message in an event log on its own
node, so that the message exists on both nodes.