You have been assigned the task of collecting the relevant information for trouble shooting a Layer 3 MPLS VPN routing issue across two (same VPN) for a customer. After initial diagnostics you have ruled out any connectivity issues and any hardware or software bugs. Which four steps should you use to collect information for troubleshooting the VPN routing issue? (Choose four)

A.
Redistribution of routes into MP-BGP

B.
Route fillers that might prevent routes from propagating

C.
Interface state between PE and CE devices

D.
VRF route target import and export details

E.
MPLS forwarding state between PE and core routers

F.
VRF route limit on the PE devices

G.
Interface error counters on the customer-facing PE interface