Content

| 8.2 |  | Quality of Service Mechanisms |
| 8.2.6 |  | Modular QoS command-line interface (CLI) |

The Modular QoS Command Line Interface or MQC is central to Cisco’s model for implementing IOS based QoS solutions. The MQC breaks down the tasks associated with QoS into modules that:

- Identify traffic flows.
- Classify traffic flows as belonging to a common class of QoS.
- Apply QoS policies to that class.
- Define the interfaces on which the policy should be enforced.

The modular nature of MQC allows the reuse of common traffic classes and policies. This simplifies the configuration, makes it more efficient to implement changes and reduces the chance of error.