QUESTION
(a) What is Multi-Protocol Label Switching (MPLS)? List the main advantage of running MPLS in a service provider network
(b) What is a label? Explain the structure of the label. Where will the label be imposed in a packet?
(c) Explain any two of the following
1. Virtual Routing Forwarding (VRF)
2. Route distinguisher (RD)
3. Route targets (RT)