Correcting Errors in Negotiating

If the SUNW,eri device is connected to a remote system or interface that is not capable of auto-negotiation, your system automatically selects the correct speed and half-duplex mode.

If the Sun eri FastEthernet is connected to a link partner with which the auto-negotiation protocol fails to operate successfully, you can configure the device so it does not use this protocol. This forces the driver to set up the link in the mode and speed of your choice.