H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 22)

15
QoS configuration approaches
This chapter includes these sections:
• QoS configuration approach overview
• Configuring a QoS policy
NOTE:
•
The term "switch" or "device" in this chapter refers to the switching engine on a WX3000E
wired-wireless switch.
• The WX3000E series comprises WX3024E and WX3010E wired-wireless switches.
• The port numbers in this chapter are for illustration only.
QoS configuration approach overview
The following approaches are available for configuring QoS: Non-policy approach and Policy
approach .
Some features support both approaches, but some support only one.
Non-policy approach
In non-policy approach, you can configure QoS service parameters without using a QoS policy. For
example, you can use the line rate feature to set a rate limit on an interface without using a QoS policy.
Policy approach
In policy approach, you configure QoS service parameters by using QoS policies. A QoS policy defines
the shaping, policing, or other QoS actions to take on different classes of traffic. It is a set of
class-behavior associations.
A class is a set of match criteria for identifying traffic, and it uses the AND or OR operator:
• If the operator is AND, a packet must match all the criteria to match the class.
• If the operator is OR, a packet matches the class if it matches any of the criteria in the class.
A traffic behavior defines a set of QoS actions to take on packets, such as priority marking and redirect.
By associating a traffic behavior with a class in a QoS policy, you apply the specific set of QoS actions
to the class of traffic.
Configuring a QoS policy
Figure 4 shows how to configure a QoS policy.