Configuring QoS mutation map actions

Follow these steps to configure a QoS mutation map.

Before you begin

A policy map and a class map have been configured.

About this task

Different kinds of mutations can be used depending on the command. For complete information, refer to relevant Command Reference guide. The available commands are cos-mutation, cos-traffic-class, dscp-cos, dscp-mutation, and dscp-traffic-class.

Procedure

Enter global configuration mode.
```
device# configure terminal
```
Select the policy map.
```
device(config)# policy-map policyMap1
```

Select the class.

device(config-policymap)# class default

Specify the mutation map.
```
device(config-policyclass)# map dscp-cos all-zero-map
```
In this example a DSCP-to-CoS mutation is configured.
Return to privileged EXEC mode.
```
device(config-policyclass)# end
```

Verify the configuration.

device# show run policy-map
policy-map policyMap1
 class default
  map dscp-cos all-zero-map
 !

Save the running-config file to the startup-config file.
```
device# copy running-config startup-config
```

QoS mutation map configuration example

device# configure terminal
device(config)# policy-map policyMap1
device(config-policymap)# class default
device(config-policyclass)# map dscp-cos all-zero-map
device(config-policyclass)# end
device# show run policy-map
device# copy running-config startup-config