The expression “hindsight is 20/20” couldn’t be truer for software-defined wide-area networking (SD-WAN). To summarize the past few years: Cloud computing and digital transformation drove companies to re-evaluate traditional WAN technology, which no longer met their growing business needs. That’s when SD-WAN emerged as a promising new technology.
SD-WAN was designed to address the problem of traffic management from physical devices and to enable software-based provisioning from the cloud. Many initial SD-WAN deployments were fueled by the desire to replace expensive multi-protocol label switching (MPLS). Companies were hopeful that it could magically solve all their networking problems. But in practice, basic SD-WAN solutions fell well short on this promise.
Thanks to Brand Post (see source)