IST2187I

Explanation
 This message is the first message in a group of
messages that VTAM® issues when
 an XCF Message Out (IXCMSGO) operation fails for a specific XCF connection.
  This message group is issued to provide the return code and reason
code set by  the MVS™ cross-system
coupling facility (XCF).      
 A complete description of the
message group follows the example.  IST2187I XCF SEND FAILURE ON TRLE trlename   MESSAGE TYPE: type
IST1684I RETURN CODE = return_value REASON CODE = errno       
IST314I END

IST1684I
This message provides
the return code and reason code set by the MVS  cross-system coupling facility (XCF) in
response to an XCF Message Out  (IXCMSGO) invocation.
In the
message text: return_value
The hexadecimal return code returned by the MVS cross-system  coupling facility (XCF) in
response to the IXCMSGO invocation.
errno
The hexadecimal reason code returned by the MVS cross-system  coupling facility (XCF) in
response to the IXCMSGO invocation.

See z/OS MVS Programming: Sysplex Services Reference for the codes specific to the IXCMSGO invocation.
IST2187I
In
the message text: trlename
The name of the XCF TRLE.  This name displays as ***NA*** if
it is  unavailable at the time of the failure.
type
The specific XCF message type that VTAM was
attempting to send to the  partner XCF node when the XCF Message Out
operation failed.  The message type can be one of the following: Message type
Activity

DATA
Normal data operation

DISC
Disconnect signal

HELLO
Activation signal

INACT
Inactivation signal

INOP
Inoperative signal

KEEPALIVE
KeepAlive signal

PACING
XCF Pacing signal

XID
XID activation signal

System action
 VTAM deactivates
the XCF connection because of the     inoperative condition. VTAM automatically attempts to
    re-establish connectivity with the XCF partner. 

Operator response
 Save the console log for problem determination.
 Contact the system  programmer.

System programmer response
 Determine whether the partner node
is overloaded or involved in an activity that will  prevent the XCF
Message Out operation from completing successfully.  See z/OS MVS Programming: Sysplex Services Reference for the codes specific to the IXCMSGO invocation
failure.  If the XCF Message Out operation failures are unexpected
and persistent, take a dump of both nodes at the next  occurrence,
 then contact IBM® support. 

User response
 Not applicable.

Problem determination
 Not applicable.

Source
 z/OS® Communications
Server SNA

Module
 You can display the module that issues a SNA message
in the message by setting the MSGMOD start option to YES.  See Adding the originating module to the message text for more information about the MSGMOD
start option.

Routing code
 2

Descriptor code
 5

Example
   IST2187I XCF SEND FAILURE ON TRLE ISTT0201   MESSAGE TYPE: DATA     
IST1684I RETURN CODE = 0000000C REASON CODE = 00000004                         
IST314I END