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Input DSCP value
40 to 47
48 to 55
56 to 63
Configuration guidelines
When an ACL is referenced by a QoS policy for traffic classification, the action (permit or deny) in the
ACL is ignored, and the actions in the associated traffic behavior are performed.
Recommended QoS configuration procedures
Recommended QoS policy configuration procedure
A QoS policy involves the following components: class, traffic behavior, and policy. You can
associate a class with a traffic behavior using a QoS policy.
Class
1.
Classes identify traffic.
A class is identified by a class name and contains some match criteria.
You can define a set of match criteria to classify packets. The relationship between criteria can
be and or or.
and—The device considers a packet belongs to a class only when the packet matches all
the criteria in the class.
or—The device considers a packet belongs to a class as long as the packet matches one of
the criteria in the class.
Traffic behavior
2.
A traffic behavior, identified by a name, defines a set of QoS actions for packets.
Policy
3.
You can apply a QoS policy to a port. A QoS policy can be applied to only the inbound direction
of one port.
Perform the tasks in
Table 146 Recommended QoS policy configuration procedure
Step
Adding a class
1.
Configuring classification rules
2.
Adding a traffic behavior
3.
Configure actions for the behavior:
4.
Configuring traffic mirroring and traffic
redirecting for a traffic behavior
Configuring other actions for a traffic behavior
Adding a policy
5.
Table 146
to configure a QoS policy:
Local precedence (Queue)
5
6
7
Remarks
Required.
Add a class and specify the logical relationship
between the match criteria in the class.
Required.
Configure match criteria for the class.
Required.
Add a traffic behavior.
Use either method.
Configure various actions for the traffic behavior.
Required.
408
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