单项选择题

WhichstatementabouttheCiscoMPLSTEFastReroute（FRR）nodepr……

Which statement about the Cisco MPLS TE Fast Reroute （FRR） node protection operation is not correct？（）

A.It requires a next-next hop backup tunnel.
B.Point of local repair （PLR） swaps the next hop label and pushes the backup label.
C.The backup tunnel terminates on the merge point （MP） where traffic rejoins the primary tunnel.
D.The backup tunnel can have associated bandwidth capacity.
E.Restoration time is expected under 50 ms.

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