Common limitations

Limitations on IDs exceeding 8 bytes

When the remote host is lower than HULFT8, you cannot use IDs that exceed 8 bytes. Using one causes an error.

Limitations on DEFLATE compression

When the remote host is lower than HULFT8 or HULFT8 for Mainframe, you cannot use the DEFLATE compression.

In this case, data is transferred without compression even when you specify DEFLATE.

Limitations on sending long messages

When the remote host is lower than HULFT8, long messages are not sent even if you specified transmission of long messages on issuing the Send File or the Send Request.

Also, the following processing is not executed on the remote host (lower than HULFT8):

• Message output to the Send Log and to the Receive Log on the remote host

• Dynamic change (message replacement) of various system management information on the remote host

The following processing is executed on the local host (HULFT10):

• Message output to the Send Log

• Dynamic change (message replacement) of various system management information

Limitations on log output improvement

When the remote host is lower than HULFT8, the correct remote host name might not be displayed, depending on the timing of error occurrence.

Limitations on Transfer Test function

With the Transfer Test function, behavior for each host might differ depending on a combination of transfer preferences specified on the sending host and on the receiving host.

Table 10.1 shows combinations of transfer preferences and the operations of each host.

Table 10.1 Combination of Transfer Preferences and How the Host Operates

			Sending Host
			HULFT8, HULFT10				Lower than HULFT8
			Use HULFT7 Comm. Mode is 'No'		Use HULFT7 Comm. Mode is 'Yes'		-
			Test-priority Mode	Test-run Mode	Test-priority Mode	Test-run Mode	-
Receiving host	HULFT8, HULFT10	Test-priority Mode	Sending Host: Normal operation Receiving Host: Normal operation	Sending Host: Test operation Receiving Host: Test operation	Sending Host: Normal operation Receiving Host: Normal operation	Sending Host: Test operation (*2) Receiving Host: (*3)	Sending Host: Normal operation Receiving Host: Normal operation
		Test-run Mode	Sending Host: Test operation Receiving Host: Test operation	Sending Host: Test operation Receiving Host: Test operation	Sending Host: Normal operation (Error) Receiving Host: (*1)	Sending Host: Test operation (*2) Receiving Host: (*3)	Sending Host: Normal operation (Error) Receiving Host: (*1)
	Lower than HULFT8	-	Sending Host: Normal operation Receiving Host: Normal operation	Sending Host: Test operation (*2) Receiving Host: (*3)	Sending Host: Normal operation Receiving Host: Normal operation	Sending Host: Test operation (*2) Receiving Host: (*3)	Sending Host: Normal operation Receiving Host: Normal operation

-	:	Not Available
*1	:	An error (Status Code=517) occurs on the host on the receiving side.
*2	:	The result on the host on the sending side varies depending on the setting of the Result Handing of Receiving in the System Environment Settings.
*3	:	HULFT does not transfer files to the host on the receiving side.

 

For details of transfer preferences, refer to the following:

Limitations on compressed transfers

The following compression types are available in HULFT:

• Compression within records (Horizontal)

• Compression across records (Vertical)

• DEFLATE compression

• Zstandard compression

The usable compression types differ based on the HULFT product type, version, and the management information settings.

For details, refer to the following:

Limitations on using symbols in management information IDs

When the remote host is lower than HULFT10, you cannot use "_ (underscores)" for management information IDs.