In this chapter, we are going to look at what SD-WAN is and how it came about.
The Traditional Network
The networks we rely on for both business and pleasure on a day-to-day basis are susceptible to many factors that can result in a slow and unreliable experience.
We can experience latency, which either refers to the time between a data packet being sent and received or the round-trip time, which is the time it takes for the packet to be sent and for it to get a reply, such as when we use ping.
We can also experience jitter, which is the variance in the time delay between data packets ...
