On what equipment do you configure Layer 2 to Layer 3 QoS mapping?
A. switch
B. router
C. firewall
D. Cisco Unified Communications Manager
E. bridge
On what equipment do you configure Layer 2 to Layer 3 QoS mapping?
A. switch
B. router
C. firewall
D. Cisco Unified Communications Manager
E. bridge
Not that I have supporting documentation for my belief but I think it is A. You’re going FROM a Layer 2 device TO a Layer 3 device and as “hisulley” pointed out, qos map configuration is on the switch.
The equipment has to be a layer 3 device. A router is a layer 3 device. A switch can be layer 2 or layer 3.
In other words, if a router is configured as a bride between ports, it would not be called a router at first place. yet, if a switch is not specially specified as a layer 3 switch, it is default referring to a layer 2 switch.
that being said, B -> router is the correct answer.
The Layer 2 header is stript off at the Router interface, therefore the mapping most be done as it leaves the Switch. It maps Cos value set in the 802.1Q/802.1P section to the TOS value in the Layer 3 header
Therfore The Answer is A
Switch#(config)mls qos map cos-dscp 0 8 16 24 32 46 48 56
Should be A. qos map config is on the switch.