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The Evolution of SD-WAN Network Architecture

By CIOReview | Tuesday, May 8, 2018

The provisioning and functioning of VPN services have significantly evolved rapidly over the last few years. While the burden of enormous hardware requirement has troubled most organizations, Software Defined WAN (SD-WAN) is the go-to solutions, these days. The marketplace is inundated by a flurry SD-WAN solutions and solutions providers, each one of them exhibiting a different value proposition. However, one feature that resonates through all SD-WAN architecture is its commodity bandwidth and computing resource usage. This has reduced the cost of implementation, and by using multiple connections, SD-WAN vendors have lessened the limitations of internet lines as compared with leased lines.

With the rise of cybercrimes, security is the primary concern of SD-WAN solutions provider. In order to ensure that all the transaction in the network is safe, many have adapted to strong encryption framework such as IPsec. Also, many vendors are using layer 2 services to protect the network from ransomware or DDoS attack. A recent example is Aryaka’s Passport, which is a multi-layered security platform, redefining the security aspects of an SD-WAN network. Cloud computing, too, is a significant contributor to this tectonic shift in network architecture. It allows for greater optimization that translates into better user experience and cost-effectiveness.

Admittedly, the shifts in the SD-WAN landscape are promising and are precursors to the forthcoming innovations. However, investing in SD-WAN is a tricky business and organizations opting for one need to weigh the pros and cons thoroughly. Enterprises that meticulously analyze the SD-WAN’s scope are bound to reap the benefits in the long run while those who get too overwhelmed with its features and take impulsive decisions will bite the dust.

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