Which flavor of MPLS Layer 3 VPN has MPLS enabled on PE-CE links? 01/13/2017 – by Admin_VCEguide 0 Which flavor of MPLS Layer 3 VPN has MPLS enabled on PE-CE links? A. basic B. CSC C. inter-AS D. AToM E. VPLS SHOW ANSWERSCorrect Answer: B Explanation/Reference: Explanation: http://www.cisco.com/en/US/docs/ios/12_0st/12_0st14/feature/guide/csc.html