Also known as software-defined Wide area networks, SD-WAN has become one of the hottest topics among enterprise network operators and service providers. Why does this happen? On the one hand, an increasing number of Internet-based applications, services and intensive applications are deployed in the cloud; On the other hand, these increased devices not only require operators to invest a lot of money, but also take the time and money to manage them, and the advent of SD-WAN solves this problem well.
According to Gartner, "SD-WAN is a new way to build, deploy, and operate enterprise wide area networks that can simplify network deployment and manage remote branch office connections more cost-effectively." By 2020, spending on SD-WAN-related products will grow to $1.24 billion, and almost a third of enterprises will adopt SD-WAN technology." In layman's terms, SD-WAN is a specific application of software-defined networking (SDN) technology for WAN connectivity, which enables enterprise network connectivity over long distances and can help operators distribute traffic to other remote locations. At present, more and more enterprises realize that the network architecture of today's cloud computing needs to be reconsidered, so SD-WAN is rapidly replacing traditional WAN.
One of the key features of SD-WAN is the ability to manage multiple types of connections, from MPLS to broadband. SD-WAN enables enterprises to scale diverse applications from the data center to the cloud, while deploying a WAN is 100 times faster and three times cheaper. SD-WAN can also reduce costs and increase efficiency, with SD-WAN, operators do not need to buy expensive MPLS connections to interconnect remote sites, which helps operators reduce some expensive but unnecessary equipment.
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