H12-831 Web TestEngine demo

R1 forwards a packet with the destination IP address of 4.4.4.4 on an MPLS network.

Some LSP (Label Switched Path) information of R3 is shown in the figure.
During packet transmission, which of the following devices perform MPLS label operations?

Select all that apply.

• A

  R4

• B

  R2

• C

  R1

• D

  R3