Câu 80: 400-201: CCIE SP Written v4.1

Which description is true about how remote IP Fast Reroute addresses failures in the ring topologies?

1. A. Routers establish a targeted LDP session with the furthest router that that is in a PQ space. It requires an equal cost path to both edge ring routers.
2. B. Routers establish an MPLS TE tunnel with both edge ring routers.
3. C. Routers establish a GRE tunnel with the furthest PQ node in the ring.
4. D. Routers establish a GRE tunnel with the closest PQ node in the ring.
5. E. Routers establish a targeted LDP session with the closest router that is in a PQ space. — đáp án hiện tại
6. F. Routers establish an MPLS TE tunnel with all PQ nodes in the ring.