How An Application Fits Into The Architecture - HP TR3271 Programming Manual

How a Management Application Fits Into the Architecture
The EMS interface requires the subsystem to initiate the communi-
cation. The subsystem reports event information when events
happen, not in response to a request from a management applica-
tion. The communication between EMS and your management applica-
tion is unidirectional and occurs asynchronously.
application using EMS can monitor events that occur in the TR3271
subsystem. The application can thereby handle problems occurring
in the subsystem or track the current status of the subsystem.
An application can then retrieve the event messages from the
consumer distributor process.
retrieve only specific information, you can write a filter.
Figure 2-1 illustrates how a management application fits into the
TR3271 subsystem architecture.
Commands
Management
Application
Retrieve Return
Event Event
Consumer
Filter
Distributor
Return
Retrieve
Event
Event
VIEWPOINT
TCP
VIEWPOINT
User
Figure 2-1.
SCP
Responses
Event
Messages
Event
Log
Compatibility
Distributor

How an Application Fits Into the Architecture

MANAGEMENT PROGRAMMING FOR TR3271
If you want your application to
SCF
Commands
Responses
Commands
Responses
TR3271
Subsystem
EMS
Collector
($0)
Event
Messages
Event
Messages
Event Messages/
Console Messages
Filter
A management
SCF User
Event
Messages
Event
Messages
Other
Subsystems
Console
S8009-002
2-3