Consolidated Platform Configuration Guide, Cisco Ios Release 15.2(4)E (Catalyst 2960-X Switches - Cisco Catalyst 2960 series Configuration Manual

Command or Action
Step 3 interface interface-id
Example:
Switch(config)# interface
gigabitethernet1/0/1
Step 4 mls qos trust dscp
Example:
Switch(config-if)# mls qos trust dscp
Step 5
mls qos dscp-mutation dscp-mutation-name
Example:
Switch(config-if)# mls qos dscp-mutation
mutation1
Step 6
end
Example:
Switch(config-if)# end
Step 7 show mls qos maps dscp-mutation
Example:
Switch# show mls qos maps dscp-mutation
Step 8 copy running-config startup-config
Example:
Switch# copy-running-config startup-config
Related Topics
Examples: Configuring DSCP Maps, on page 637

Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)

Purpose
The DSCP range is 0 to 63.
Note To return to the default map, use the no mls qos
dscp-mutation dscp-mutation-name global
configuration command.
Specifies the port to which to attach the map, and enters interface
configuration mode.
Valid interfaces include physical ports.
Configures the ingress port as a DSCP-trusted port. By default,
the port is not trusted.
Applies the map to the specified ingress DSCP-trusted port.
For dscp-mutation-name, enter the mutation map name specified
in Step 2.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
How to Configure QoS
611