试题详情
- 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.
- A
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