X25AM Configuration and Management Manual

SCF Commands for the X25AM Subsystem

X25AM Configuration and Management Manual—523424-004

4-5

SCF Interface to the X25AM Subsystem

An X25AM subsystem consists of one or more I/O processes residing on a single

NonStop system (node). After an X25AM I/O process exists in the MIB (as a DEVICE

object) and has been started, you can start, stop, and alter the line it controls with SCF

commands to the X25AM subsystem. For example, Figure 4-2 illustrates the ALTER

command issued to a LINE object.

Any of the SCF commands (START, STOP, ABORT, ACTIVATE, for example) can be

substituted for the ALTER command. These line-state and attribute changes are

dynamic; they exist until either a system restart or until a subsequent SCF change to

the line. For a table of all the SCF commands available for the X25AM subsystem, see

Table 4-3 on page 4-10.

An example command for starting an X25AM line is:

-> START LINE $x25p1

To make persistent changes to an X25AM line, you make the changes to the X25AM

I/O process that controls the line. Refer to Altering an X25AM I/O Process on

page 3-11.

Because subdevices are managed (added, deleted, and so forth) using SCF

commands to the X25AM subsystem, they are dynamic objects; after a system restart

you must add the subdevices to each of the X25AM lines with which you want them

associated.

Figure 4-2. Making Dynamic Changes to an X25AM Line

VST0402.vsd

Terminal

ALTER LINE $X25P1

X25AM

Subsystem

X25AM

I/O Process