Qos Configuration Approaches; Qos Configuration Approach Overview; Non-Policy Approach; Policy Approach - H3C S5120-SI Configuration Manual

QoS configuration approaches

This chapter includes these sections:

QoS configuration approach overview

•

Configuring a QoS policy

•
QoS configuration approach overview
The following approaches are available for configuring QoS:
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.
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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.
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Non-policy approach and Policy