When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted over the carrier network?

Last Updated on September 30, 2021 by Admin

On a carrier’s MPLS VPN network, PE1 and PE2 transmit data packets between VPNs. After PE1 receives VPN route 172.16.1.0/24 from a client, it converts the route into a VPNv4 route and distributes label 1027 to the packet. After the packet arrives at PE2, PE2 distributes label 1025 to the packet. When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted over the carrier network?

  • Outer label: 1027; inner label: 1025
  • Outer label: 1025; inner label: 1025
  • Outer label: 1027; inner label: 1027
  • Outer label: 1025; inner label: 1027
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