You are attempting to configure an ISL port to carry tagged VLANs. The ISL is currently
active and you can see your neighbor switch in the show fabric isl command output. You
enter the switchport command on the ISL interface but receive an error. What is the cause of
the error?

A.
You must shut down the port before adding the VLANs.

B.
You cannot configure a switch port on an ISL.

C.
The switchport command is applied under the port profile.

D.
40 GbE ports cannot be put into switchport mode.