Changing traffic patterns and bandwidth requirements are forcing organizations to rethink their WAN architectures and data transport options. In the past, most applications and resources were hosted in the corporate data center, and branch locations connected to headquarters in a hub-and-spoke architecture. Today, the WAN primarily supports Internet traffic and cloud access, making traditional designs costly and inefficient.
In our last post [Software-Defined WAN: Cheaper, Faster, More Secure], we discussed how software-defined WAN (SD-WAN) solutions enable you to reduce WAN cost and complexity while increasing performance, reliability and security. The software-defined component of SD-WAN lies in a smart centralized controller capable of differentiating and segmenting traffic and making routing decisions on the fly.