HP 8000 tower manual Network Interface Controller

Input/Output Interfaces

5.8Network Interface Controller

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 5-10). 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.

Intel

82567V NIC

Tx/Rx Data

Activity (green) LED			RJ-45
		Connector
LAN I/F	Tx/Rx Data

Speed (yellow/green) LED

Figure 5-10. Network Interface Controller Block Diagram

Table 5-10. LAN LED Indications

Function	Activity LED	Speed LED
10 MB link	Green (steady)	Off
100 MB link	Green (steady)	Yellow (steady)
1000 MB link	Green (steady)	Green (steady)
10 MB data transfer	Green (blinking)	Off
100 MB data transfer	Green (blinking)	Yellow (steady)
1000 MB data transfer	Green (blinking	Green (steady)

The Network Interface Controller includes the following features:

■VLAN tagging with Windows XP and Linux

■Multiple VLAN support with Windows XP (and later)

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

■Cisco Etherchannel support

■Speed 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.

5-14 www.hp.com Technical Reference Guide