S5#sh run | b mls
mls qos map dscp-mutation Prob9 14 to 12
mls qos map dscp-mutation Prob9 28 to 26
mls qos map dscp-cos  8 9 10 11 13 14 15 24 to 2
mls qos map dscp-cos  25 27 28 29 30 31 33 34 to 2
mls qos map dscp-cos  35 36 37 38 39 to 2
mls qos
!
interface FastEthernet0/3
 switchport access vlan 10
 switchport mode dynamic desirable
 wrr-queue bandwidth 30 30 40 1
 wrr-queue cos-map 1 1
 wrr-queue cos-map 2 3
 wrr-queue cos-map 3 0 2 5 6 7
 wrr-queue cos-map 4 4
 priority-queue out
!
!
interface FastEthernet0/24
 switchport trunk encapsulation dot1q
 switchport mode trunk
 mls qos trust cos pass-through dscp
 mls qos dscp-mutation Prob9
end


S6#sh run int fa 0/4
Building configuration...

Current configuration : 110 bytes
!
interface FastEthernet0/4
 switchport access vlan 10
 switchport mode dynamic desirable
 mls qos cos 4
end