What is the impact of MPLS VPN on CE-routers?
A.
The CE-routers are not MPLS VPN aware.
B.
The CE-routers must support the same IGP as the P-network.
C.
The CE-routers must use EBGP as the CE to PE routing protocol.
D.
The CE-routers must be upgraded to version 12.0 or later to support MPLS.