D-Link AirPremier DWL-2210AP Manual page 97

Configuring Queues for Qualty of Service (QoS)
The following sections describe how to configure Quality of Service queues on the
D-Link DWL-2210AP:
• Understanding QoS
• QoS and Load Balancing
• 802.11e and WME Standards Support
• QoS Queues and Parameters to Coordinate Traffic Flow
• Navigating to QoS Settings
• Configuring QoS Queues
• Updating Settings
Understanding QoS
A primary factor that affects QoS is network congestion due to an increased number
of clients attempting to access the air waves and higher traffic volume competing for
bandwidth during a busy time of day. The most noticeable degradation in service on a
busy, overloaded network will be evident in time-sensitive applications like Voice-over-
IP (VoIP) and streaming media.
Unlike typical data files which are less affected by variability in QoS, VoIP and streaming
media must be sent in a specific order, at a consistent rate, and with minimum delay
between Packet transmission. If the quality of service is compromised, the audio or
video will be distorted.
QoS and Load Balancing
By using a combination of load balancing (see "Load Balancing" on page 95) and QoS
techniques, you can provide a high quality of service for time-sensitive applications
even on a busy network. Load balancing is a way of better distributing the traffic volume
across access points. QoS is a means of allocating bandwidth and network access
based on transmission priorities for different types of wireless traffic within a single
access point.
802.11e and WME Standards Support
QoS describes a range of technologies for controlling data streams on shared network
connections. The
for transmission quality and availability of service on wireless networks. QoS is designed
to provide better network service by minimizing network congestion; limiting Jitter,
Latency, and Packet
critical applications, and prioritizing wireless traffic for channel access.
IEEE 802.11e task group is in the process of defining a QoS standard
Loss; supporting dedicated bandwidth for time-sensitive or mission
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