Follow these steps to configure a QoS DSCP-to-traffic class map.
Procedure
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Enter global configuration mode.
device# configure terminal
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Create and name a QoS DSCP-to-traffic class map.
device(config)# qos map dscp-traffic-class dscpTcMap
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Define the QoS DSCP-to-traffic class values.
device(config-dscp-traffic-class-dscpTcMap)# map dscp 10 to traffic-class 3
device(config-dscp-traffic-class-dscpTcMap)# map dscp 40 to traffic-class 4
device(config-dscp-traffic-class-dscpTcMap)# map dscp 45 to traffic-class 5
device(config-dscp-traffic-class-dscpTcMap)# map dscp 52 to traffic-class 3
The default value is used for those DSCP that are not explicitly defined.
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Return to privileged exec mode.
device(config-dscp-traffic-class-dscpTcMap)# end
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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:
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Save the
running-config file to the
startup-config file.
device# copy running-config startup-config
QoS DSCP-to-traffic class and drop precedence map configuration example
device# configure terminal
device(config)# qos map dscp-traffic-class dscpTcMap
device(config-dscp-traffic-class-dscpTcMap)# map dscp 10 to traffic-class 3
device(config-dscp-traffic-class-dscpTcMap)# map dscp 40 to traffic-class 4
device(config-dscp-traffic-class-dscpTcMap)# map dscp 45 to traffic-class 5
device(config-dscp-traffic-class-dscpTcMap)# map dscp 52 to traffic-class 3
device(config-dscp-traffic-class-dscpTcMap)# end
device# show qos maps dscp-traffic-class
device# copy running-config startup-config
