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Expand Management Programming Manual

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INTRODUCTION
Architecture of the EXPAND Subsystem
ARCHITECTURE OF THE EXPAND SUBSYSTEM
The EXPAND subsystem consists of the EXPAND manager process,
the Network Control Process (NCP), the Network Utility Process
($ZNUP), and one or more line-handler processes. ($ZNUP performs
some statistics collection functions that were formerly performed
by the NCP.) Figure 1-1 illustrates the architecture of the
EXPAND subsystem and the various interfaces to the subsystem.
S7012-001
SCP
EXPAN
D
Manager
Process
$ZNU
P
SCP
NETMON
PU
P
CU
P
CM
I
SC
EXPAND Subsystem
Interactive
Interfaces
Programmatic
Interfaces
Line-Handler
Process
NC
P
Figure 1-1. Architecture of the EXPAND Subsystem
1-3