HP kp721av Manuale Utente

These systems provide 10/100/1000 Mbps network support through an Intel 82567V network 
interface controller (NIC), a PHY component, and a RJ-45 jack with integral status LEDs (Figure 
5-11). The support firmware is contained in the system (BIOS) ROM.  The NIC can operate in 
half- or full-duplex modes, and provides auto-negotiation of both mode and speed. Half-duplex 
operation features an Intel-proprietary collision reduction mechanism while full-duplex 
operation follows the IEEE 802.3x flow control specification. 

The Network Interface Controller includes the following features:

■

VLAN tagging with Windows XP and Linux

■

Multiple VLAN support with Windows XP

■

Power management support for ACPI 1.1, PXE 2.0, WOL, ASF 1.0, and IPMI

■

Cisco Etherchannel support

■

Link and Activity LED indicator drivers

The controller features high and low priority queues and provides priority-packet processing for 
networks that can support that feature. The controller's micro-machine processes transmit and 
receive frames independently and concurrently. Receive runt (under-sized) frames are not passed 
on as faulty data but discarded by the controller, which also directly handles such errors as 
collision detection or data under-run. 

The NIC uses 3.3 VDC auxiliary power, which allows the controller to support Wake-On-LAN 
(WOL) and Alert-On-LAN (AOL) functions while the main system is powered down.

✎

For the features in the following paragraphs to function as described, the system unit must be 
plugged into a live AC outlet. Controlling unit power through a switchable power strip will, with 
the strip turned off, disable any wake, alert, or power mangement functionality.

Intel 

LAN I/F

Green LED

NIC

RJ-45

Connector

Yellow LED

Tx/Rx Data

Tx/Rx Data

LED

Function

Green
Yellow

Activity/Link. Indicates network activity and link pulse reception.
Speed: Off = 10 Mb/s, yellow = 100Mb/s, green = 1 Gb/s. 

82567V