Question

Where does an MPLS label go in a PDU?



Layer 1



Between Layers 2 and 3



Between Layers 1 and 2



Layer 3

Answer 1

Answer: Between Layers 2 and 3

Explanation:

In between Layer 2 and Layer 3 the MPLS header is present and is known as Shim header. It is also said to be in 2.5.