Sun Microsystems Gigabit Ethernet MMF/UTP Adapter manual Setting ipge Driver Parameters

■100 Mbit/sec, half-duplex

■10 Mbit/sec, full-duplex

■10 Mbit/sec, half-duplex

The Sun PCI-Express Dual Gigabit Ethernet adapter performs autonegotiation with the remote end of the link (the link partner) to select a common mode of operation.

The Sun PCI-Express Dual Gigabit Ethernet ada[ter also supports a non-auto- negotiated mode of operation. You can set the speed and mode using the ndd utility, or, to make sure the changes persist after a system reboot, you can create a ipge.conf file. See “To Set Driver Parameters Using an ipge.conf File” on page 27 for more information about setting driver parameters.

The Sun PCI-Express Dual Gigabit Ethernet UTP adapter is capable of all the operating speeds and modes listed in “Setting the Autonegotiation Mode” on page 25. The ipge device performs auto-negotiation with the remote end of the link (link partner) to select a common mode of operation. The ipge device also supports Forced mode operation.

Setting ipge Driver Parameters

You can set the ipge device driver parameters in two ways:

■Using the ndd utility

■Using the ipge.conf file

If you use the ndd utility, the parameters are valid only until you reboot the system. This method is good for testing parameter settings.

To set parameters so they remain in effect after you reboot the system, create a /kernel/drv/ipge.conf file and add parameter values to this file when you need to set a particular parameter for a device in the system.

Setting Parameters Using the ndd Utility

Use the ndd utility to configure parameters that are valid until you reboot the system. The ndd utility supports any networking driver that implements the Data Link Provider Interface (DLPI).

The following sections describe how you can use the ipge driver and the ndd utility to modify (with the -setoption) or display (without the -setoption) the parameters for each ipge device.

22 Sun PCI-Express Dual Gigabit Ethernet MMF/UTP Adapter Installation and User’s Guide • June 2006