QoS configuration approaches
You can configure QoS in these approaches:
Some features support both approaches, but some support only one.
In modular QoS configuration (MQC) approach, you configure QoS service parameters by using QoS
In non-MQC approach, you 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.
"Configuring a QoS