Sun Microsystems 6U manual To Set the local-mac-address Property to the Network Interfaces

If the adapter is connected to a link partner with which the autonegotiation protocol fails to operate successfully, you can configure the device not to use this protocol and force the driver to set up the link in the mode and speed of your choice. See “Setting Forced Mode Using the ndd Utility” on page 70 for more information.

Setting the local-mac-address Property

Each of the four network interfaces of the adapter has been assigned a unique medium access control (MAC) address, which represents the 48-bit Ethernet address for that network interface. The OpenBoot firmware reports this MAC address by means of the local-mac-addressproperty in the device nodes corresponding to the network interfaces.

A system is not obligated to use this assigned MAC address if it has a system-wide MAC address. In such cases, the system-wide MAC address applies to all network interfaces on the system.

The device driver, or any other adapter utility, can use the network device’s MAC address (local-mac-address) while configuring the device. A network interface’s MAC address can be used when booting over the network.

The mac-addressproperty of the network device specifies the network address (system-wide or local-mac-address) used for booting the system. To start using the MAC addresses assigned to the network interfaces of the adapter, set the NVRAM configuration variable local-mac-address?to true, as shown in the procedure below.

▼To Set the local-mac-addressProperty to the Network Interfaces

Before starting this procedure, make sure that all network activity over the adapter’s network interfaces has stopped.

1.Log in to the system as superuser.

Refer to the system’s documentation for the correct procedure. For example, if you are logging into a Netra ct series server, refer to the Netra ct Server Service Manual.

46 Sun Quad FastEthernet 6U CompactPCI Adapter Installation and User’s Guide • June 2000