Introduction to Multiprotocol Label Switching (MPLS)

This chapter aims to explain Multiprotocol Label Switching (MPLS), an important technology in Transmission Control Protocol (TCP) / Internet Protocol (IP) networks, and its continued relevance. It also introduces Fast Reroute (FRR) in MPLS networks and Segment Routing MPLS (SR-MPLS), a newer method for operating MPLS networks. Before beginning the practical exercises, it explains the structure, the key components needed to build the required infrastructure, and where to obtain them. Throughout, you are encouraged to revise the fundamental concepts of MPLS, SR-MPLS, and FRR. Understanding these concepts is crucial for successfully following the practical exercises and gaining deeper insight into advanced networking principles in later chapters. By the end of this chapter, you will have understood MPLS concepts, their applications, and the required infrastructure for hands-on experience.

This chapter will cover the following topics...