Administrator's Guide v4.1.1 Manual
• DSCP values 1, 3, 5, and 7 are set to output as DSCP number 9.
• DSCP values 11, 13, 15, and 17 are set to output as DSCP number 19.
• DSCP values 12, 14, 16, and 18 are set to output as DSCP number 20
• DSCP values 2, 4, 6, and 8 are set to output as DSCP number 10.
4. Enter the do copy command to save the running-config file to the startup-config file.
switch(config)# do copy running-config startup-config
Applying a DSCP mutation map to an interface
To apply a configured DSCP mutation map to an interface, perform the following steps from privileged
EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Specify the Ethernet interface.
switch(config)# interface tengigabitethernet 3/1/2
3. Activate or apply changes made to the DSCP mutation map to the interface. In this example "test" is
the map name.
switch(conf-if-te-3/1/2)# qos dscp-mutation test
NOTE
To deactivate a map from an interface, enter no qos dscp-mutation name.
4. Specify the DSCP trust mode for incoming traffic.
For Standalone mode:
switch(conf-if-te-2/1/2)# qos trust dscp
For VCS mode:
switch(conf-if-te-2/1/2)# qos dscp-cos test
switch(conf-if-te-2/1/2)# qos dscp-traffic-class test
5. Return to privileged EXEC mode.
switch(conf-if-te-3/1/2)# end
6. Enter the copy command to save the running-config file to the startup-config file.
switch# copy running-config startup-config
Verifying the DSCP mutation mapping
To verify applied DSCP maps, you can use one or both of the following options from global
configuration mode.
• Verify DSCP mapping for a specific map using the do show qos maps dscp-mutation command
and the map name.
switch(config)# do show qos maps dscp-mutation test
• Verify all DSCP mapping by using the do show qos maps command with the dscp-mutation
operand only.
switch(config)# do show qos maps dscp-mutation
• Verify DSCP mutation mapping for an interface by using the show qos interface command and
specifying the interface:
switch(config)# do show qos interface te 3/1/2
Configuring DSCP-to-CoS mappings
Consider the topics discussed below when configuring the DSCP-to-CoS mappings.
Applying a DSCP mutation map to an interface
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