What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?
A. It requests a new label from the peer that provided this label.
B. It pops the label.
C. It pushes an additional label onto the label stack.
D. It signals a new label to the peer that sent the packet.
What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB ma
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What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB ma
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