AM3270 Management Programming Manual

MANAGEMENT PROGRAMMING FOR AM3270
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. A management
application using EMS can monitor events that occur in the AM3270
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. If you want your application to
retrieve only specific information, you can write a filter.
Figure 2-1 illustrates how a management application fits into the
AM3270 subsystem architecture.
S8009-002
Compatibilit
y
Distributo
r
Filte
r
Console
VIEWPOINT
User
VIEWPOINT
TCP
Event
Log
Event
Messages
Event Messages/
Console Messages
EMS
Collector
($0)
Return
Event
Retrieve
Event
Event
Messages
Event
Messages
Return
Event
Retrieve
Event
Management
Application
Commands
Responses Responses
Commands
Commands
Responses
SCF
SCF User
SCP
Filte
r
Consumer
Distributor
Event
Messages
Event
Messages
TR3270
Subsystem
Other
Subsystems
Figure 2-1. How an Application Fits Into the Architecture
2-3