Defining A Policy; Applying The Qos Policy - H3C S5500-SI Series Operation Manual

Defining a Policy

In a policy, you can define multiple class-behavior associations. A behavior is performed for the
associated class of packets. In this way, various QoS features can be implemented.
Follow these steps to associate a class with a behavior in a policy:
To do...
Enter system view
Create a policy and enter policy
view
Associate a class with a
behavior in the policy

Applying the QoS Policy

You can apply a QoS policy to different occasions:
Applied to an interface, the policy takes effect on the traffic sent or received on the interface.
Applied to a user profile, the policy takes effect on the traffic sent or received by the online users of
the user profile.
Applied to a VLAN, the policy takes effect on the traffic sent or received on all ports in the VLAN.
You cannot modify the classification rules, traffic behaviors, and classifier-behavior associations in
a QoS policy already applied. To check whether a QoS policy has been applied successfully, use
the display qos policy interface command.
The switch may save the applications of some QoS policies that have failed to be applied due to
insufficient hardware resources in the configuration file. After the switch reboots, these policies
may preempt other user configurations for resources, resulting in loss of configurations. Suppose
that the user-bind command is configured on GigabitEthernet 1/0/2, and the application of a QoS
policy to GigabitEthernet 1/0/1 is saved in the configuration file even though the application has
failed due to insufficient resources. After the switch reboots, it may assign resources to have the
QoS policy take effect preferentially, while the user-bind configuration may be lost due to
insufficient resources.
Applying the QoS policy to an interface
A policy can be applied to multiple ports. Only one policy can be applied in inbound direction of a
port/port group.
Follow these steps to apply the QoS policy to an interface:
To do...
Enter system view
Use the command...
system-view
qos policy policy-name
classifier tcl-name behavior
behavior-name
Use the command...
system-view
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