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4A0-100 · Question #323

What operation is performed by an egress Label Edge Router (eLER) when it receives an MPLS labeled packet?

The correct answer is D. It pops the MPLS label and forwards the packet to the next IP router. See the full explanation below for the reasoning.

Service Fundamentals

Question

What operation is performed by an egress Label Edge Router (eLER) when it receives an MPLS labeled packet?

Options

  • AIt forwards the packet to the next LSR without altering the MPLS label.
  • BIt swaps the MPLS label and forwards the packet to the next LSR.
  • CIt pushes a new MPLS label and forwards the packet to the next LSR.
  • DIt pops the MPLS label and forwards the packet to the next IP router.

How the community answered

(27 responses)
  • A
    4% (1)
  • B
    11% (3)
  • C
    4% (1)
  • D
    81% (22)

Topics

#MPLS#eLER#label pop#label operations

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