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Which of the following about Fast Reroute link protection tunnels is FALSE?

A. Link protection tunnels are established if a router is unable to establish node protection tunnels.

B. Link protection tunnels are only requested for a primary LSP path.

C. Link protection tunnels can be created for both one-to-one or facility Fast Reroute.

D. Link protection tunnels detour around a failed next downstream router.

Explanation:

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