April 2021 ZK Research A Division of Kerravala Consulting © 2021 ZK Research I n f l u e n ce a n d i ns i g ht t h ro u g h so c i a l m e d i a Prepared by Zeus Kerravala W H I T E P A P E R Behind the Need for NEXT-GENERATION SD-WANS8 2 INTRODUCTION: SD-WANS ARE ON THE RISE Digital transformation, which was first discussed in the late 1990s and accelerated in the mid-2000s, is now moving even faster. The COVID-19 pandemic has added urgency, so plans originally sketched out for years are happening in months. The combination of the pandemic and digital transformation has raised the value of the network, which in turn has accelerated the adop- tion of software-defined WANs (SD-WANs). Before COVID-19 started to take hold in March 2020, most companies had long-range d

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