The Evolution and Management of WANs

This chapter examines the historical evolution of Wide Area Networks (WANs) and the ongoing relevance of private WAN solutions despite advancements in internet bandwidth. It discusses the complexities of data traffic, encapsulation, and the shifting landscape towards internet-based connectivity influenced by modern technologies like MPLS and SD-WAN. Additionally, the chapter highlights practical considerations for effective WAN management, including quality of service policies and bandwidth optimization techniques.