A packet is to be encapsulated inside an MPLS tunnel which consists of two MPLS headers at the first network egress. Which of the MPLS EXP fields will be marked?

Question

vceplus plus · Accepted Answer

The EXP field in both the top and bottom MPLS headers will be marked.

vceplus plus · Answer

The EXP field in the bottom MPLS header will be marked.

vceplus plus · Answer

For Layer 2 services, the top MPLS header will be marked; for Layer 3 services, the bottom MPLS header will be marked.

vceplus plus · Answer

The EXP field in the top MPLS header will be marked.

vceplus plus · Answer

Neither the top nor the bottom EXP field will be marked since EXP remarking can only be done on the network ingress.

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