A. Fast re-route is a temporary fix that becomes active for a short period of time after a local network failure.

B. Fast re-route typically protects the active segment of a tunnel, but under certain conditions it can protect an end-to-end multi-segment tunnel instead.

C. On a Nokia 7750 SR, R-LFA and TI-LFA can be enabled independently of each other.

D. The parameter "max-sr-frr-labels" limits the number of labels that R-LFA can add to the data packet encapsulation.