Overview - D-Link DGE-550SX User Manual

DGE-550T 1000 Mbps PCI Adapter
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Overview

Thank you for choosing the D-Link DGE-550SX. This
introduction gives a general description of the newer
networking technologies found on the DGE-550SX.
This Network Interface Card (NIC) is designed to operate at
1000Mbps at full duplex. When running at 1000Mbps, it
provides a network throughput of 2Gbps in full-duplex mode.
The card supports IEEE 802.1p Traffic Prioritization for time-
sensitive and mission-critical traffic. With IEEE 802.1Q
multiple VLAN support, it provides VLAN tables that can
filter packets by recognized VLAN tags, strip VLAN tags
when received, and insert VLAN tags when transmitted.
VLANs can increase the efficiency and provide extra security
of your network.
The DGE-550SX provides IEEE802.3x Flow Control
Enhancements, which are needed for a network adapter to
function with a switch. In full-duplex mode, MAC implements
the PAUSE control function. This means when a switch is
connected in full-duplex mode and it senses that its buffer will
overflow in the near future, the switch will transmit one
standard Ethernet packet that causes the DGE-550SX to
pause for a period, thus avoiding internal buffer overflow and
packet loss.
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Introduction