D-Link DWC-2000 User Manual - Page 148

Section 5 - Advanced Network Configuration Enabling QoS Mode Path: Network > QoS > LAN QoS Priority Using the QoS page, you can enable Quality of Service (QoS) on the wireless controller. Typically, networks operate on a best-effort delivery basis, which means that all traffic has equal priority and an equal chance of being delivered in a timely manner. When congestion occurs, all traffic has an equal chance of being dropped. When you configure the QoS feature, you can select specific network traffic, prioritize it according to its relative importance, and use congestion-management and congestion-avoidance techniques to provide preferential treatment. Implementing QoS in your network makes network performance more predictable and bandwidth utilization more effective. It is especially useful if you expect traffic congestion on the wireless controller LAN ports. QoS classification can be applied in Layer 2 or Layer 3 frames. For this reason, you can configure the wireless controller to use Layer 2 CoS settings or Layer 3 DSCP settings. Note: The wireless controller also provides a CoS-to-DSCP map to map CoS values in incoming packets to a DSCP value that QoS uses internally to represent the priority of the traffic. To access this feature, click Network > QoS > QoS Priority. To configure QoS mode: 1. Click Network > QoS > LAN QoS Priority. D-Link DWC-2000 User Manual 148