Compaq 8000 Technical Reference Guide: HP Compaq 8000 Elite Series Business De - Page 64

Input/Output Interfaces 5.8 Network 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. Activity (green) LED RJ-45 Connector Intel 82567V NIC Tx/Rx Data 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