20 Platform Notes: The hme Fast Ethernet Device Driver—May 1996
4
To set parameters so they remain in effect after you reboot the system:
•Add the parameter values to /etc/system when you want to configure
parameters for all devices in the system.
•Create thehme.conf file and add parameter values to hme.conf when you
need to set a particular parameter for a device in the system.
If you want to test parameter settings, use the ndd utility described in Chapter
3. With ndd, the parameters are effective until you reboot the system. To
make the parameter settings permanent, enter the values in /etc/system or
hme.conf as described in this chapter.
Setting Parameters Using ndd
Use the ndd utility to configure parameters that are valid until you reboot the
system. The ndd utility supports any networking driver, which implements the
Data Link Provider Interface (DLPI).
The following sections describe how you can use the hme driver and the ndd
utility to modify (with the -set option) or display (without the -set option)
the parameters for each SUNW,hme device.

Identifying Device Instances

Before you use the ndd utility to get or set a parameter for the hme device, you
must specify the device instance for the utility if there is more than one
SUNW,hme device.
Note – If there is only one SUNW,hme device, the device is automatically
chosen by the ndd utility.

▼To specify the device instance for the ndd utility

1. Check the /etc/path_to_inst file to identify the instance associated
with a particular device.