Product description
The DFE-580TX adheres to IEEE 802.3 10BaseT and 802.3u 100BaseTX. The DFE-580TX supports both Half and Full Duplex operations at 20/200 Mbps data speeds used in conjunction with 802.3x flow control support. With the DFE-580TX auto-negotiation support, connection speed is negotiated at the highest speed to a compliant switch. The DFE-580TX also supports PCI bus mastering for quick memory access, which provides high throughput and low CPU utilization.
Product features
- 4 Fast Ethernet ports
With 4 twisted-pair ports running capable of running at full duplex, the DFE-580TX provides connection at near gigabit speed for servers on your existing Category 5 or lower grade network cable. All 4 ports support 10/100Mbps auto-sensing, and can be combined into a high-speed trunk transferring data at up to 800Mbps full-duplex. - Reliable high performance
The card operates at the PCI bus master mode with clock speed support at up 33/66MHz. It is equipped with 4 independent MAC controllers, allowing each of the 4 ports to establish an independent full bandwidth segment with the attached switch. In the unlikely event where one MAC fails, the remaining controllers will continue to operate, guaranteeing uninterrupted server connection. - Load-sharing aggregated bandwidth
You can configure all 4 ports to operate at the load-sharing mode. In this configuration, the ports share the traffic load to and from the switch, while the card ensures a balanced load for each of the ports. This mode guarantees that bottlenecks are eliminated at peak traffic time. - Fail-over redundant backups
An alternative is to configure the card with 2 redundant backed-up load-sharing trunks. One trunk is active, the other trunk in the stand-by mode. In case if one trunk fails, the other trunk will provide the backup link. This configuration can be applied for mission-critical situations, or more common applications such as video-conference and IP telephony. - Priority queues support for quality of service
With packet prioritization capability, the card allows traffic to be queued as critical and non-critical, permitting your server to run voice over IP, video-conference and multimedia applications where packets are delivered at best-effort speeds. - Flow control to minimize packet loss
The card's embedded flow control provides a means to protect against possible data loss during transmission on the network. When connected to a Fast Ethernet switch that supports flow control, the card receives signals from the switch regarding buffer overrun during peak usage periods. The card then delays transmission until the switch is ready again to accept data.
