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Chapter 9 355
An Overview of ITO Processes
Understanding ITO Processes
Understanding ITO Processes
ITO’s agents and managers communicate by means of Remote Procedure
Calls (RPCs) based on DCE or NCS, files (=queues), pipes, or signals.
These mechanisms apply to communication between the management
server and the managed nodes as well as to communication between
processes running locally on the management server.
Figure 9-1 A Functional Overview of ITO
logfile
Console Msg
System Values
regroup
Broadcast
threshold exceeded
Message Sources
Monitor Sources
Display
Manager
Action
Manager
Message
Agent
Monitor
Agent
thresholds
Action
Agent
Message
Manager
Managed
Nodes
Management
Server
Display
Stations
Shell Scripts
Programs
....
Supplied Actions
Logfile
SNMP Traps
Logfile
Encapsulator
Console
Interceptor
Event
Interceptor
SNMP MIB
others
Monitor
Script/Program
Monitor
Script/Program
SNMP
(Ext.) Agent
NT Eventlog
filter
+
actions
Operator-Initiated
Action
Automatic Action
Local Automatic Action
External
Trouble Ticket
System
External
Notification
Service
msg
data-
base
opcmsg
Command
Interceptor
WWW UI
Server
Motif
GUI
Motif
GUI
Java
GUI
Java
GUI