This Natural profile parameter can be used to define an RPC default server address by specifying up to 4 positional subparameters.

Possible settings	See DFS Parameter Syntax.
Default setting	none	Subparameter defaults, see DFS Parameter Syntax.
Dynamic specification	yes	See below.
Specification within session	yes	At runtime, this value can be overwritten using the Natural application programming interface USR2007N.
Application programming interface	USR2007N	See Application Programming Interfaces for Use with Natural RPC in the Natural RPC (Remote Procedure Call) documentation and SYSEXT - Natural Application Programming Interfaces in the Utilities documentation.

Notes:

1. DFS is specified on the client side only.
2. DFS determines the server name, the server node, the logon indicator and the transport protocol. The default server address will be used only if no appropriate server is found in the service directory. For further information, see Specifying RPC Server Addresses in the Natural RPC (Remote Procedure Call) documentation.

DFS Parameter Syntax

The parameter syntax is as follows:

DFS=(server-name,server-node,logon-indicator,transport-protocol-name,service-directory-indicator)

Where:

Syntax Element	Value	Explanation
server-name	1 - 192 characters	Valid server name. See also parameter SRVNAME. There is no default, the value must be specified.
server-node	1 - 192 characters	Node name. See also parameter SRVNODE. There is no default, the value must be specified.
logon-indicator	L	The client initiates a Natural logon to the server with the library name of the current library on the client. On Windows platforms: Instead of specifying L, check the selection box.
	(blank)	Blank means that no server logon will be executed. If nothing is specified, this is the default.
transport-protocol-name	ACI	The transport protocol to be used. ACI is the only possible value and the default.
service-directory-indicator	SERVDIR	A service directory must be present before the DFS profile parameter is evaluated.
	NOSERVDIR	No service directory is used before the DFS profile parameter is evaluated; that is, a service directory needs not be available on the client side. If nothing is specified, SERVDIR is the default.