Expand Configuration and Management Manual (G06.24+)

Subsystem Control Facility (SCF) Commands
Expand Configuration and Management Manual—523347-008
15-2
Overview of the Expand Subsystem SCF Interface
Overview of the Expand Subsystem SCF
Interface
The Expand subsystem SCF interface is provided to configure, control, and display
information about configured objects within the Expand subsystem. This subsection
provides information on the following topics:
•
Expand Subsystem Objects
•
Object States
•
SCF Commands and Objects
•
Sensitive and Nonsensitive Commands
•
Time Values
Expand Subsystem Objects
The SCF objects for the Expand subsystem correspond to process components within
the subsystem. There are four Expand object types:
•
LINE
•
PATH
•
PROCESS
•
ENTRY
Figure 15-1 shows the Expand subsystem objects supported by SCF and their
hierarchical order.
LINE and PATH Objects
A line is a single communications link between two adjacent nodes in a network; a
path is a logical connection between two adjacent nodes that can consist of multiple
lines.
Single-Line Expand Line-Handler Processes
An Expand line-handler process that manages a single line consists of a single logical
device that manages both path and line functions. The path and line functions can be
defined as follows:
Figure 15-1. Expand Subsystem Object Hierarchy
051CDT .CDD
ENTRY
LINE
PROCESS PATH