Справочник Пользователя для D-Link DFE-538TX

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If the switch does not support auto-negotiation, the (single capability) 
message will be recognized by the DFE-538TX auto-negotiation facility, 
which will switch to those settings of its own capabilities, which match that of 
the switch. 
Auto-negotiation reoccurs any time the linkage is restored, making the line 
ready again for optimal data communications. 
About PCI Bus 
Your DFE-538TX Adapter delivers outstanding performance by fully 
exploiting the advance features of your computer’s PCI bus.  DFE-538TX 
Adapters utilize the Bus Master Mode of the PCI bus, allowing direct 
transfers of Ethernet packet content between computer memory and the 
adapter’s controller, thus minimizing network demands on the CPU.  The 
adapter’s controller function provides the additional benefit of reduced 
command processing overhead. 
The working relationship between a DFE-538TX adapter and main memory 
working in Bus Master mode is powered by the Bridge/Memory Controller of 
the PCI bus.  This reduces the CPU role in network operations, thus freeing 
the CPU to service other tasks, with resulting improvement in overall 
computing (multitasking) performance.  At the same time, it produces 
superior network throughput by reducing latency (waiting for CPU service) 
during transmissions and receptions. 
Features 
Wake On LAN 
Wake On LAN (WOL) is an ACPI function allowing a powered down (sleeping) 
computer to be powered ON from a remote station. To use the WOL feature, the 
NIC must be WOL capable and the motherboard of the PC must be ACPI compliant. 
While powered-down computers Sleep, WOL enabled NICs monitor LAN traffic