which description is true about how remote IP Fast re-route address feature in the ring topology
A. routers establish an MPLS TE Tunnel with all PQ nodes in the ring
B. routers establish an MPLS TE Tunnel with both ring edge routers
C. routers establish targeted LDP Session with the furthest router that is in a PQ space it requires ???
D. routers establish a GRE Tunnel with the closet PQ node in the ring
E. routers establish a GRE Tunnel with the furthest PQ node in the ring
F. routers establish targeted LDP Session with the closet router that is in a PQ space
