Click the Exhibit button. PE1 and PE2 are connected to the MPLS cloud. All MPLS labels from PE1 and PE2 are working. Observing the shown topology, will this scenario work?
A.
This scenario will not work because Gigabit Ethernet can’t be connected to FastEthernet over MPLS.
B.
This scenario will work because the issues concerning Gigabit and FastEthernet over MPLS with default behavior should not make any difference.
C.
This scenario will not work because Gigabit usually has MTU over 9000 and FastEthernet 1500.
D.
This scenario will not work because one side has dot1q header and another side is in port mode.
E.
This scenario will work by configuring PWE Class using the Interworking feature. By default, the MTU on each side is 1500, so this is an acceptable solution.