The Role of SD-WAN in Securing the Expanding Network Perimeter
Software-defined wide area networking (SD-WAN) is one of the most rapidly adopted technologies of the past decade. According to a study published by Dell’Oro Group, the worldwide sales of SD-WAN technologies are forecasted to grow at double-digit rates over each of the next five years to surpass $3.2 billion in 2024. This growth is certainly a testament to some of the more well-known benefits of SD-WAN technology, such as centralized network policy management, network flexibility and application-aware routing. More recently, SD-WAN has emerged as a key component for building more flexible, integrated security frameworks.
With SD-WAN, branch offices become part of an enterprise’s larger network topology, with their own Internet egress. Corporate devices can access the Internet via multiple endpoints, adding a layer of complexity to network security. However, if properly configured and equipped, SD-WAN can