Network protocol options

Network protocol options (for both the client and the server) enable you to work around peculiarities of different network protocol implementations.

Server side

Client side

For the database server, you specify the network protocol options using the -x tcpip option. For example:

dbsrv16 -x tcpip(PARM1=value1;PARM2=value2;...)

For client applications, you specify network protocol options using the CommLinks (LINKS) connection parameter:

CommLinks=tcpip(PARM1=value1;PARM2=value2;...)

Notes

It is recommended that you use the Host connection parameter instead of the CommLinks (LINKS) connection parameter. You should only use the CommLinks (LINKS) connection parameter if you need to specify TCP/IP options other than Host or ServerPort (PORT).

You cannot specify both CommLinks and Host in a connection string.

When you use the CommLinks (LINKS) connection parameter for a TCP/IP connection, a server name should be specified using the ServerName (Server) connection parameter.

If you are connecting to a database server on the same computer as the client, then shared memory is recommended.

If there are spaces in a parameter, the network protocol options must be enclosed in quotation marks to be parsed properly by the system command interpreter:

dbsrv16 -x "tcpip(PARM1=value1;PARM2=value2;...)"
"CommLinks=tcpip(PARM1=value1;PARM2=value2;...)"

The quotation marks are also required under Unix if more than one parameter is given because Unix interprets the semicolon as a command separator.

Boolean parameters are turned on with YES, Y, ON, TRUE, T, or 1, and are turned off with any of NO, N, OFF, FALSE, F, and 0. The parameters are case insensitive.

You can also include the protocol options in a configuration file and use the @data server option to invoke the configuration file.

TCP/IP	HTTP	HTTPS	TLS
Broadcast (BCAST) protocol option	DatabaseName (DBN) protocol option	certificate_company protocol option	certificate_company protocol option
BroadcastListener (BLISTENER) protocol option (server side only)	KeepaliveTimeout (KTO) protocol option	certificate_name protocol option	certificate_name protocol option
ClientPort (CPORT) protocol option (client side only)	LocalOnly (LO) protocol option	certificate_unit protocol option	certificate_unit protocol option
DoBroadcast (DOBROAD) protocol option	LogFile (LOG) protocol option	DatabaseName (DBN) protocol option	FIPS protocol option
Host (IP) protocol option (client side only)	LogFormat (LF) protocol option	Identity protocol option	LocalOnly (LO) protocol option
LDAP protocol option	LogMaxSize (LSIZE) protocol option	Identity_Password protocol option	trusted_certificates protocol option
LocalOnly (LO) protocol option	LogOptions (LOPT) protocol option	FIPS protocol option
MyIP (ME) protocol option	MaxConnections (MAXCONN) protocol option	LocalOnly (LO) protocol option
ReceiveBufferSize (RCVBUFSZ) protocol option	MaxRequestSize (MAXSIZE) protocol option	LogFile (LOG) protocol option
SendBufferSize (SNDBUFSZ) protocol option	MaxRequestVars (MAXVARS) protocol option	LogFormat (LF) protocol option
ServerPort (PORT) protocol option	MyIP (ME) protocol option	LogMaxSize (LSIZE) protocol option
TDS protocol option (server side only)	ServerPort (PORT) protocol option	LogOptions (LOPT) protocol option
Timeout (TO) protocol option	Timeout (TO) protocol option	MaxConnections (MAXCONN) protocol option
VerifyServerName (VERIFY) protocol option (client side only)		MaxRequestSize (MAXSIZE) protocol option
		MaxRequestVars (MAXVARS) protocol option
		MyIP (ME) protocol option
		ServerPort (PORT) protocol option
		Timeout (TO) protocol option
		trusted_certificates protocol option
		KeepaliveTimeout (KTO) protocol option

Network protocol options

Notes

See also