单项选择题
A router receives a packet from a neighbor with an MPLS shim header value of 0.What does the router do with this packet?（）
A. It performs a label pop operation and an IP lookup. B. It performs a label swap operation and an IP lookup. C. It sends an error message toward the egress router. D. It sends an error message toward the ingress router.
单项选择题 With MPLS Fast Reroute, what is the "point of local repair"?（）
单项选择题 What is true about a Bypass Tunnel in MPLS Fast Reroute?（）
单项选择题 Which CLI command is used to enable MPLS Fast Reroute on a ingress router?（）
