What is the role of Forwarding Equivalence Class (FEC) in MPLS?()
- AFEC determines how IP packets are forwarded in MPLS LSP.
- BFEC determines how to establish an LSP path.
- CFEC determines how a group of IP packets are mapped to an LSP.
- DFEC determines how MPLS labels are stacked in LSP.
- ENone of above.