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

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 PE2. For the FEC of LSR-ID in PE1, the label value distributed by PE2 is 1025.

When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted out of PE2?
A . Outer label: 1027; inner label: 1025.
B. Outer label: 1025; inner label: 1025.
C. Outer label: 1027; inner label: 1027.
D. Outer label: 1025; inner label: 1027.

View Answer

Answer: A