What is multi-protocol label switching (mpls), Basic Computer Science

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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?

1. Virtual Routing Forwarding (VRF)

2. Route distinguisher (RD)

3. Route targets (RT)

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