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Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)  489
 
Quality of Service 
The Quality of Service feature is applied throughout the network to ensure that 
network traffic is prioritized according to required criteria and the desired traffic 
receives preferential treatment.
This section covers the following topics:
• QoS Features and Components
• Configuring QoS - General
• QoS Basic Mode
• QoS Advanced Mode
• Managing QoS Statistics