Applying an MPLS QoS EXP-to-traffic class mutation map globally

A MPLS QoS EXP-to-traffic class map is configured.

Enter global configuration mode.
```
device# configure terminal
```

Apply the MPLS QoS EXP-to-traffic class map globally.

device(config)# qos-mpls map exp-traffic-class expTcMap ALL

Return to privileged exec mode

device(exp-traffic-class-expTcMap)# end

Verify the configuration.

device#  show qos-mpls maps exp-traffic-class

exp-traffic-class map 'expTcMap'
    Exp   :    0  1  2  3  4  5  6  7
   ------- ------------------------
traffic-class  : 5  5  4  6  5  5  5  5
drop-precedence: 0  1  1  1  0  2  2  1

   Enabled on the following slots:

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

Apply a MPLS QoS EXP-to-traffic class map globally configuration example

device# configure terminal
device(config)# qos-mpls map exp-traffic-class expTcMap ALL
device(exp-traffic-class-expTcMap)# end
device# show qos-mpls maps exp-traffic-class
device# copy running-config startup-config