Sun Microsystems 4000 Noninteractive and Interactive Modes, # ndd -set /dev/vcaN parameter value

Note –In the examples in this user’s guide, N represents the instance number of the device.

The device remains selected until you change the selection.

Noninteractive and Interactive Modes

You can use the ndd utility in two modes:

■Noninteractive

■Interactive

In noninteractive mode, you invoke the utility to execute a specific command. Once the command is executed, you exit the utility. In interactive mode, you can use the utility to get or set more than one parameter value. Refer to the ndd(1M) online manual page for more information.

Using the ndd Utility in Noninteractive Mode

This section describes how to modify and display parameter values.

●To modify a parameter value, use the -setoption.

If you invoke the ndd utility with the -setoption, the utility passes value, which must be specified to the named /dev/vca driver instance, and assigns it to the parameter:

#ndd -set /dev/vcaN parameter value

When you change any adv parameter, a message similar to the following appears:

-link up 1000 Mbps half duplex

●To display the value of a parameter, specify the parameter name and omit the value.

When you omit the -setoption, a query operation is assumed and the utility queries the named driver instance, retrieves the value associated with the specified parameter, and prints it:

# ndd /dev/vcaN parameter

34 Sun Crypto Accelerator 4000 Board Installation and User’s Guide • May 2003