Configuring a traffic class-to-CoS mutation map

Follow these steps to configure QoS traffic class-to-CoS mutation map.

1. Enter global configuration mode.
   

   device# configure terminal
   

2. Configure the QoS traffic class-to-CoS mutation map.
   

   device(config)# qos map traffic-class-cos CoSMap 1 1 2 3 4 4 4 3
   

   If the QoS CoS mutation map is not configured, then the default CoS mutation map is used with 1:1 mapping for the traffic class-to-PCP values.
3. Return to privileged exec mode.
   

   device(config)# exit
   

4. Verify the configuration.
   

   device# show qos maps traffic-class-cos  
   
   Traffic Class-to-Cos Mutation map 'CoSMap'
      TrafficClass: 0  1  2  3  4  5  6  7
      ------------------------------------
           Out-Cos: 1  1  2  3  4  4  4  3
   
      Enabled on the following interfaces:  
   

5. Save the running-config file to the startup-config file.
   

   device# copy running-config startup-config
   

Traffic class-to-CoS mutation map configuration example

device# configure terminal
device(config)# qos map traffic-class-cos CoSMap 1 1 2 3 4 4 4 3
device(config)# exit
device# show qos maps traffic-class-cos 
device# copy running-config startup-config