Legacy WAN operations are slow, manual and error prone. Bringing up a branch office requires a lengthy manual process of purchasing multiple WAN devices such as routers and switches, provisioning them through onsite knowledge IT personnel, and building WAN access by leveraging WAN transport lines. In addition, data center backhaul used in legacy WAN architectures introduces latency and causes applications to run more slowly.
SD-WAN is designed to solve these challenges and is essential in WAN transformation.