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referenced in the traffic behavior is called the "child QoS policy"; the QoS policy that references the
behavior is called the "parent QoS policy".
To nest a child QoS policy in a parent QoS policy:
Step Command Remarks
1.
Enter system view.
system-view
N/A
2.
Create a class for the parent
QoS policy and enter class
view.
traffic classifier
classifier-name
[
operator
{
and
|
or
} ]
N/A
3.
Configure match criteria.
if-match
[
not
]
match-criteria
N/A
4.
Return to system view.
quit
N/A
5.
Create a behavior for the
parent QoS policy and enter
behavior view.
traffic behavior
behavior-name
N/A
6.
Nest the child QoS policy.
traffic-policy
policy-name
The QoS policy specified
for the
policy-name
argument must already
exist.
7.
Return to system view.
quit
N/A
8.
Create the parent QoS policy
and enter parent QoS policy
view.
qos policy
policy-name
N/A
9.
Associate the class with the
behavior in the parent QoS
policy.
classifier
classifier-name
behavior
behavior-name
N/A
NOTE:
To nest QoS policies successfully, follow these guidelines:
•
The support for QoS policy nesting depends on your device model.
•
If class-based queuing (CBQ) is configured in the child QoS policy, configure generic traffic
shaping (GTS) in the parent QoS policy and make sure that the GTS bandwidth configured in the
parent QoS policy is equal to or greater than the CBQ bandwidth configured in the child QoS
policy.
•
If GTS bandwidth in the parent QoS policy is configured in percentage, the CBQ bandwidth in the
child QoS policy must be also configured in percentage; if it is configured as an absolute number,
the CBQ bandwidth in the child QoS policy can be configured in either percentage or as an
absolute number.
•
GTS cannot be configured in the child QoS policy.
Applying the QoS policy
You can apply a QoS policy to an interface or permanent virtual circuit (PVC). The policy takes effect
on the traffic sent or received on the interface or PVC.
A policy can be applied to multiple interfaces or PVCs, but only one policy can be applied in one
direction (inbound or outbound) of an interface or PVC.
To apply the QoS policy to an interface or PVC:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
