IST1556I

Explanation
 This message is the first message in a group of
messages that VTAM® issues in
response to a failed inactivation or activation request for an ATM
native permanent virtual channel (PVC) or switched virtual channel
(SVC) connection. VTAM issues
the same group of messages when an existing native ATM PVC or SVC
connection fails.
 A complete description of the message group
follows the example.   IST1556I ATM connection_type FAILURE: ID = node_name  STATUS = status_code
[IST1562I CAUSE = cause_code]
[IST1558I DIAG = diagnostic_code]
[IST1558I DIAG = diagnostic_code]
[IST1562I CAUSE = cause_code]
[IST1558I DIAG = diagnostic_code]
[IST1558I DIAG = diagnostic_code]
 IST314I  END

 IST1556I  connection_type can be one of the following:
 CALL
Indicates the failure of an activation or inactivation request
for an ATM native PVC or SVC connection.
DISABLE
Indicates the failure of an inactivation request for an incoming
call filter for an ATM native port on the IBM® Open Systems Adapter.
ENABLE
Indicates the failure of an activation request for an incoming
call filter for an ATM native port on the IBM Open Systems Adapter.
PORT
Indicates the failure of an activation or inactivation request
for an ATM native port on the IBM Open
Systems Adapter.

If connection_type is DISABLE, ENABLE, or PORT, node_name is
the name of an external communication adapter (XCA) major node that
defines an ATM native port.
If connection_type is CALL, node_name is
the name of the PU definition statement that represents the remote
PU that is connected through an ATM native SVC.
status_code indicates the cause of a failure
detected by the IBM Open Systems
Adapter. See the z/OS Communications Server: IP and SNA Codes for an explanation of what the status code
means.

 IST1562I  cause_code indicates the cause of a failure
detected by the ATM network. See the z/OS Communications Server: IP and SNA Codes for an explanation of what the cause code
means.  Note: This message might be repeated if there are multiple
cause codes associated with the failure.

 IST1558I  diagnostic_code indicates additional information
about the cause of a failure detected by the ATM network. See the z/OS Communications Server: IP and SNA Codes for an explanation of what the diagnostic
code means.  Note: This message might be repeated to accommodate diagnostic
codes that are longer than 24 bytes.

System action
 For call failures, the dial or activation of
the PU fails. For enable and disable failures, no incoming calls can
be accepted from the ATM native port. For port failures, all lines
and PUs for the port will be deactivated. 

Operator response
 If status_code, cause_code,
or diagnostic_code indicates that the failure is
a result of a temporary condition, reactivate the PU. 

System programmer response
 If failure persists after reactivation
attempts, examine status_code, cause_code,
or diagnostic_code to determine whether the failure
is a result of a system definition error or a network error. If the
failure is a result of a system definition error, correct the error.
If the failure is a result of a network error, contact the ATM network
provider.

Routing code
 2

Descriptor code
 5