AM3270 and TR3271 Configuration and Management Manual

SCF Interface to AM3270 and TR3271
AM3270 and TR3271 Configuration and Management Manual—529993-001
4-2
Subsystem Control Point (SCP)
SCF automatically opens and closes SCP. In most cases, the default SCP is the only
one you will ever need. If you should need to establish an SCF session through a
specific SCP other than the default SCP, you can start additional SCPs by using either
the SCF RUN command or the TACL RUN command. For more information about
SCP, see the SCF Reference Manual for SCP.
Subsystem Control Point (SCP)
SCP is a network-management process for receiving and redistributing the messages
that SCF sends to certain data communications subsystems.
SCP lies between SCF and HP data communications subsystems. SCP provides
security (by restricting access to sensitive commands), version control, tracing support
for subsystems, and support for application processes.
SCF Commands
Some SCF commands operate on the objects (lines, subdevices, processes, and so
on) belonging to each subsystem. In the AM3270 and TR3271 subsystems, for
example, the ADD and DELETE commands add objects to and delete objects from the
list of objects controlled by SCF. Once an object is subject to control by SCF, you can
use the START, STOP, and ABORT commands to change the state of the object, or
you can use the ALTER command to change the values of selected attributes of the
object. You can also use the INFO command to display the current attribute values for
objects and the STATUS and STATS commands to display the current dynamic status
of objects.
The ENV command displays the current settings of the SCF command parameters that
establish the program environment.
Figure 4-1. SCF Overview
Note. For a complete description of the commands described in this section, refer to the SCF
Reference Manual for G-Series RVUs or the SCF Reference Manual for H-Series RVUs.
General SCF commands are not described in this manual.
VST005.vsd
AM3270 or
TR3271
SCP ($ZNET)
SCF
Command
(OBEY)
File