ViewPoint Manual

Functional Description
ViewPoint Manual—426801-001
5-3
Overview of ViewPoint Architecture
control node (NCN). Commonly, network operators log on at this node, although it is
possible to log on remotely.
There can be more than one NCN in a network, allowing various operators to share
responsibilities or to have different levels of responsibility in network control.
Figure 5-2 assumes one NCN and four remote nodes. One operator is logged on at
this NCN.
In Figure 5-2, a representative subsystem is shown in all five nodes (including the
NCN). These processes all interact with the ViewPoint TCP to allow reporting of events
and status to the operator. Your TACL process is responsible for command and response
interaction with these five subsystems.
Figure 5-3 shows the basic architecture for all three logical portions of the ViewPoint
application—TACL, status logic, and events logic. The figure shows two separate
network nodes to illustrate the typical distribution of processes in the network
environment.
Figure 5-2. Network Presentation for Multiple Nodes
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