H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 21)

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• Traffic classification uses certain match criteria to assign packets with the same characteristics to a
class. Based on classes, you can provide differentiated services.
• Traffic policing polices flows entering or leaving a device, and imposes penalties on traffic flows
that exceed the pre-set threshold to prevent aggressive use of network resources. You can apply
traffic policing to both incoming and outgoing traffic of a port.
• Traffic shaping proactively adapts the output rate of traffic to the network resources available on the
downstream device to eliminate packet drops. Traffic shaping usually applies to the outgoing traffic
of a port.
• Congestion management provides a resource scheduling policy to determine the packet forwarding
sequence when congestion occurs. Congestion management usually applies to the outgoing traffic
of a port.
• Congestion avoidance monitors the network resource usage, and is usually applied to the outgoing
traffic of a port. When congestion worsens, congestion avoidance reduces the queue length by
dropping packets.