Networks are now increasingly virtualized, with software-defined networking (SDN), network-function virtualization (NFV) and software-defined WAN (SD-WAN). The network also has undergone significant change. Data and applications are no longer confined to central data centers, and they need to move quickly between those data centers, the edge and multiple clouds. The growing demand for faster speeds, more bandwidth and lower latency has put the network front-and-center in the IT world. At the same time, we have seen the rise of new and emerging applications and technologies, from data analytics to virtual and augmented reality, automated vehicles and edge computing. This means as business becomes more digital, the network increases in strategic value. The building blocks of digital are cloud computing, mobility, internet of things and artificial intelligence, all of which are network-centric. That opinion has been changing, because the network has rapidly increased in importance as digital transformation has taken hold in the business world. Most people simply considered the network to be the “plumbing” of a company and little else. The data network was once an IT resource to which few business leaders paid attention.
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