Applying a DSCP-to-traffic class mutation map to an interface

Follow these steps to apply a QoS DSCP-to-traffic class map to an ingress interface.

1. Enter global configuration mode.
   

   device# configure terminal
   

2. Enter interface configuration mode.
   

   device(config)# interface ethernet 1/2 
   

3. Activate the QoS DSCP-to-traffic class mutation map on the interface.
   

   device(conf-if-eth-1/2)# qos dscp-traffic-class dscpTcMap  
   

4. Return to privileged EXEC mode.
   

   device(conf-if-eth-1/2)# end
   

5. Verify the configuration
   

   device# show qos maps dscp-traffic-class 
   
   Dscp-to-Traffic-Class map 'dscpTcMap' 
   {x/y: traffic-class = x, drop-precedence = y & dscp = d1d2}
   d1 :  d2  0   1   2   3   4   5   6   7   8   9 
   ------------------------------------------------
   0 :     0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 4/2 1/0
   1 :     1/0 1/0 1/0 1/0 1/0 1/0 2/0 2/0 2/0 2/0
   2 :     2/0 2/0 2/0 2/0 3/0 3/0 3/0 3/0 3/0 3/0
   3 :     3/0 3/0 4/0 4/0 4/0 4/0 4/0 4/0 4/0 4/0
   4 :     5/0 5/0 5/0 5/0 5/0 5/0 5/0 5/0 6/0 6/0
   5 :     6/0 6/0 6/0 6/0 6/0 6/0 7/0 7/0 7/0 7/0
   6 :     7/0 7/0 7/0 7/0
   
      Enabled on the following interfaces: Eth 1/2 
   

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

   device# copy running-config startup-config
   

Applying a QoS DSCP-to-traffic class map to an interface configuration example

device# configure terminal
device(config)# interface ethernet 1/2 
device(conf-if-eth-1/2)# qos dscp-traffic-class dscpTcMap  
device(conf-if-eth-1/2)# end
device# show qos maps dscp-traffic-class 
device# copy running-config startup-config