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Configuring QoS Class of Service Configuration
User Guide 651
Note:
In Trust 802.1p mode, the untagged packets will be added an 802.1p priority based on the port to
802.1p mapping and will be forwarded according to the 802.1p to queue mapping.
The following example shows how to configure the trust mode of port 1/0/1 as dot1p, map
802.1p priority 3 to TC4, and configure to map the original 802.1p 1 to 802.1p priority 3:
Switch#configure
Switch(config)#interface gigabitEthernet 1/0/1
Switch(config-if)#qos trust mode dot1p
Switch(config-if)#exit
Switch(config)#qos cos-map 3 4
Switch(config)#qos dot1p-remap 1 3
Switch(config)#show qos trust interface gigabitEthernet 1/0/1
Port Trust Mode LAG
-------- --------- --------
Gi1/0/1 trust 802.1P N/A
Switch(config)#show qos cos-map
---------------+-----+-----+-----+-----+-----+-----+----+----
Dot1p Value |0 |1 |2 |3 |4 |5 |6 |7
---------------+-----+-----+-----+-----+-----+-----+----+----
TC |TC0 |TC1 |TC2 |TC4 |TC4 |TC5 |TC6 |TC7
---------------+-----+-----+-----+-----+-----+-----+----+----
Switch(config)#show qos dot1p-remap
Dot1p Value 0 1 2 3 4 5 6 7 LAG
----- ----- ----- ----- ----- ----- ----- ----- -----
Dot1p Remap 0 3 2 3 4 5 6 7 N/A
Switch(config)#end
Switch#copy running-config startup-config
2.2.3 Configuring DSCP Priority
â– Configuring the Trust Mode
Follow these steps to configure the trust mode:
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