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## Relationship Among QoS Parameters, Scheduler Profiles, and QoS Profiles

Figure 59 shows the relationship among the parameter definitions, scheduler profiles, and QoS profiles that QoS administrators create. It also indicates how these profiles control the parameter instances that QoS clients create.

Figure 59: Relationship of Parameter Definitions, Scheduler Profiles, and QoS Profiles

The following sections describe the steps displayed in Figure 59, based on the tasks that the QoS administrator performs and those the QoS client performs.

## QoS Administrator Tasks

Before the QoS client can specify settings for subscribers by using the QoS parameters feature:

1. The QoS administrator defines the attributes that the QoS client can modify by configuring a parameter definition.
2. The QoS administrator specifies the parameter definition name in a scheduler profile.
3. The QoS administrator references the scheduler profile in a QoS profile rule.

## QoS Client Tasks

After the QoS administrator defines parameter definitions:

1. The QoS client creates a parameter instance and associates it with a logical interface.
2. The QoS client attaches a QoS profile to the logical interface.

#### Related Topics

- QoS Parameter Audience

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