According to Citrix, which has developed the Citrix SD WAN solutions, “SD-WAN technology allows you to create a hybrid WAN architecture. It binds multiple MPLS, mobile, and broadband paths together to provide a single, logical, virtualized path that can dynamically adapt to network conditions.” SD WAN is being seen as the next generation alternative to WAN optimization. SD WAN is also called a WAN Virtualisation, lowers cost while adding flexibility to your traditional WAN infrastructure.
It also enables prioritization decisions for each application using very granular application classification to ensure that the highest-priority applications always perform extremely well. As the next-generation alternative to WAN optimization, SD-WAN technology addresses evolving application and branch infrastructure requirements. VMWare’s Ramaswami adds, “Today, networking is less about connecting boxes and more focused on meeting the needs of applications. That means the ability to securely connect people to applications, and to connect each application to the resources it needs, regardless of where they are located.”
According to IDC, SD WAN is a rapidly growing market – the market is expected to grow at a 40.4% compound annual growth rate from 2017 to 2022 to reach $4.5 billion. “The emergence of SD-WAN technology has been one of the fastest industry transformations we have seen in years. Organizations of all sizes are modernizing their Wide Area Networks to provide improved user experience for a range of cloud-enabled applications,” said Rohit Mehra, vice president, Network Infrastructure, IDC.