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Chapter 19: Configuring Quality of Service (QoS)
Quality of Service (QoS) provides you with the ability to specify parameters on multiple queues for increased throughput and better performance of differentiated wireless traffic like
The following sections describe how to configure Quality of Service queues on the
∙Understanding QoS
∙QoS and Load Balancing
∙802.11e and WMM Standards Support
∙QoS Queues and Parameters to Coordinate Traffic Flow
∙802.1q and DSCP tags
∙Navigating to QoS Settings
∙Configuring QoS Queues
∙Configuring AP EDCA Parameters
∙Enabling/Disabling
∙Configuring Station EDCA Parameters
∙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
Unlike typical data files which are less affected by variability in QoS, Video, VoIP and streaming media must be sent in a specific order at a consistent rate and with minimum delay between Packet transmissions.
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”) and QoS techniques, you can provide a high quality of service for