OSI/FTAM Configuration and Management Manual

Managing the FTAM Configuration

OSI/FTAM Configuration and Management Manual—421944-001

4-22

Checking Association Status

The FTAM management interactive interface, the Subsystem Control Facility (SCF), can

provide you with useful information on an association between a remote initiator and the

Tandem responder. Each FTAM association is associated with one subdevice. When you

issue the STATUS SU command for a specific FTAM subdevice of a Tandem responder,

you receive addressing information that shows whether or not an association has been

established with the calling initiator through that subdevice. You can also examine the

functional units information to determine what was negotiated over the association. You

might find this useful if the responder does not successfully perform a requested service.

To issue the STATUS SU command, you need a subdevice name. You retrieve subdevice

names by issuing the SCF command NAMES SU for the target Tandem responder. The

Tandem responder creates one or more subdevices to “listen,” or be available, for

incoming associations from a remote initiator. New associations are assigned to the

oldest available subdevices, which are the available subdevices with the lowest numbers.

If the association has been established successfully, you can also identify the subdevice

by the calling address of the remote initiator in the STATUS SU display, provided only

one remote application (calling user) uses this address.

When you issue the STATUS SU command for the responder, you know that a

subdevice is actively servicing an association if the Calling Address field of the returned

display shows one or more values. If there are no values in the Calling Address field,

there is no FTAM association between a remote initiator and the local responder by way

of this subdevice.