Internal Transceiver

The internal transceiver is a feature supported by the driver and is capable of all the operating speeds and modes (except the 100BASE-T4 mode) listed in the section "Operating Speeds and Modes"," earlier in this chapter. When the internal transceiver is used, the default is auto-negotation by the hme driver, which automatically selects the speed and mode of the link. The internal transceiver performs auto-negotiation with the remote end of the link (link partner) to select a common mode of operation.

The internal transceiver also supports a forced mode of operation. This is where the user selects the speed and mode using the ndd utility, the /etc/system file, or the hme.conf file. The ndd utility makes calls to the hme driver to choose the speed and mode.