Which statement about configuring frame MPLS over an ATM PVC is true?
A.
The VPI/VCI must be manually assigned using a value from the label pool.
B.
The VCI/VPI are assigned dynamically by LDP using a value from the label pool.
C.
The VPI/VCI must be manually assigned using a value supported by the local ATM switch.
D.
The interface automatically learns the VPI/VCI from the local ATM switch and associates it with the defined MPLS.
Explanation:
Label switching Controlled ATM interface (LC-ATM interface) is an interface on a router or an ATM switch in which the VPI/VCI value is assigned through MPLS control products (TDP or LDP).
Reference: MPLS and VPN Architectures (Ciscopress) page 50
I think the correct answer is C.
In frame-mode MPLS over ATM the administrator configures a given PVC to forward the ethernet frames over the ll5snap sub-layer.
So you configure a single VC that must be accepted by the local switch.
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