To customize the performance of the Sun Quad FastEthernet adapter, perform the tasks in the following sections.
The qfe device driver, which is loaded from the Solaris CD-ROM, controls the SUNW,qfe Ethernet devices. The device driver selects the link speed using the auto-negotiation protocol with the link partner. (See "Auto-Negotiation")
You can manually set the qfe device driver parameters to customize each SUNW,qfe device in your system in one of three ways:
Set a parameter on a per-device basis by creating the qfe.conf file in the /kernel/drv directory.
Use the ndd utility to temporarily change a parameter. This change is lost when you reboot the system.
Set the qfe driver parameters generally for all SUNW,qfe devices in the system by entering the parameter variables in the /etc/system file.
See "Setting the qfe Driver Parameters"" for more information.
In the future, the /etc/system file will not be available. It is not dynamic reconfiguration compatible.