Expand Configuration and Management Manual (G06.24+)

Troubleshooting
Expand Configuration and Management Manual—523347-008
21-19
Expand-Over-X.25 Problems
Expand-Over-X.25 Problems
Table 21-10 provides general suggestions to help you solve problems with Expand-
over-X.25 lines.
Table 21-10. Expand-Over-X.25 Problem-Resolution Procedures
Task Procedure
Check the X25AM process that controls
the X.25 line to make sure that the line is
operational and that the appropriate
subdevice(s) are started.
To verify that a subdevice is correct, use the
X25AM subsystem SCF INFO SU command.
Look for the following information when using
the INFO SU command:
•
The PROTOCOL parameter must be NAM.
•
The DEVTYPE must be (63,0).
•
The DESTADDR parameter must appear if
this node is issuing a call request.
•
The PORT parameter must be set to a
value that is unique to the subdevice (other
subdevices on the line should not be
assigned to the same port).
If the appropriate subdevice(s) have not been
started, start them using the X25AM subsystem
SCF START SU command.
If the appropriate subdevice(s) cannot be found,
add them to the node using the X25AM
subsystem SCF ADD SU command.
Check the Expand-over-X.25 line-handler
process to make sure the
ASSOCIATEDEV modifier specifies the
correct X25AM process name.
To display the ASSOCIATEDEV modifier value,
use the following Expand subsystem SCF
command:
INFO LINE $device_name
Check the Expand-over-X.25 line-handler
process to make sure the NEXTSYS
modifier is set to the correct node
(system) number.
To display the NEXTSYS modifier value, use
the following Expand subsystem SCF
command:
INFO PATH $device_name
Determine if other X.25 line functions are
operational.
Try to use the X.25 line for another purpose,
such as connecting to a remote PAD. File-
system error 140 usually indicates an X25AM
error; file-system error 124 usually indicates an
Expand subsystem error.
Check the SWAN concentrator. The Expand subsystem SCF STATS LINE
command can help you determine if the
problem is caused by the SWAN concentrator.
See SWAN Concentrator Problems
on
page 21-14 for details.