Huawei
H12-841_V1.5 · Question #134
In an MPLS VPN network, which of the following descriptions conforms to the forwarding logic of the "MPLS label stack "?
The correct answer is B. The device forwards data packets based on the outer label, and then removes the outer label after. See the full explanation below for the reasoning.
Campus Network Design and Planning
Question
In an MPLS VPN network, which of the following descriptions conforms to the forwarding logic of the "MPLS label stack "?
Options
- AWhen a data packet carries multiple layers of tags, the device always processes the innermost tag
- BThe device forwards data packets based on the outer label, and then removes the outer label after
- CThe inner label is used for backbone network forwarding path identification, and the outer label is
- DWhen receiving data packets, the CE device must remove all MPLS labels before forwarding them.
How the community answered
(49 responses)- A18% (9)
- B69% (34)
- C4% (2)
- D8% (4)
Topics
#MPLS#label stack#outer label#label forwarding logic
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