NIO CommKit Host Interface Installation and System Administration Manual

4-11

Administering the CommKit Software and the STREAMS Listener

Making Outgoing Connections

You can specify one of two modes for making and receiving calls from the

CommKit interface board: round-robin mode or forced interface mode.

In round-robin mode, outgoing calls circle among all the Datakit interface

boards you have installed. For example, if you have eight Datakit interface

boards, consecutive outgoing calls are placed from the eight boards in

sequence—0, 1, 2, 3, 4, 5, 6, 7, 0, 1, and so on. In forced interface mode, you

specify one board to use for all outgoing calls.

The method for specifying the mode differs, depending upon whether the

connection is made through the CommKit server or through the TLI

Listener. The TLI Listener no longer supports round-robin calls, so TLI

applications can only use forced interface mode.

Using Forced Interface Mode

To use forced interface mode, you set the environment variable DKINTF to

an integer value between 0 and 3. The method for setting environment

variables differs, depending upon the UNIX shell you use.

In the C shell, enter:

% setenv DKINTF

integer

In the Bourne shell, enter:

# DKINTF=

integer

# export DKINTF

In the Korn shell, enter:

# export DKINTF=

integer

In the Bourne and Korn shells, you can set an environment variable for the

duration of a single command, as in the following example, where hpamsai

is the remote host:

# DKINTF=3 dkcu hpamsai