Responses to LU 6.2 devices

The response to a command from an LU 6.2 device is sent synchronously if the initiating conversation is not deallocated by the remote device. If the conversation is deallocated, the command response is sent asynchronously using the LUNAME of the device and a TPN of DFSCMD. The remote device must allocate separate DFSCMD conversations to receive each asynchronous message.

When the following commands are entered from LU 6.2 devices:

/DBDUMP DATABASE
/DBRECOVERY AREA
/DBRECOVERY DATABASE
/START AREA
/START DATABASE
/START REGION
/STOP AREA
/STOP DATABASE
/STOP REGION

The DFS058 COMMAND COMPLETED message is generated instead of the DFS058 COMMAND IN PROGRESS message. If the LU 6.2 conversation is synchronous (the conversation still exists), the DFS058 COMMAND COMPLETED message is the last message the operator receives. If the LU 6.2 conversation is asynchronous (the conversation is deallocated), the order of delivery of the DFS058 message can vary.