Internal Transceiver

The four SUNW,qfe channels provide 10BASE-TX or 100BASE-T networking interfaces using the Fast Ethernet Parallel Port SCSI (FEPS) ASIC and an internal transceiver. The driver automatically sets the link speed to 10 or 100 Mbps and conforms to the 100BASE-T IEEE 802.3u Ethernet standard. The FEPS ASIC provides the SBus interface and Media Access Control (MAC) functions. The internal transceiver, which connects to an RJ-45 connector, provides the physical layer functions.

The internal transceiver is capable of all the operating speeds and modes listed in the section "Auto-Negotiation". 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. You can select the speed and mode using the ndd utility, by editing the /etc/system file, or creating a qfe.conf file.