Contributed by AT&T

The digitally transformed Enterprise is becoming increasingly distributed, with critical business functions spread out across geographies, requiring technologies that support employees and customers where they live and work. The Wide Area Network (WAN) has emerged as a key pillar in the digitally transformed business, where new applications are highly dependent on connectivity to create more immediate and direct interactions with customers and employees. It is this imperative to move applications and compute closer to where they are being consumed that is pushing IT to respond more quickly, with greater capability and security, while helping reduce costs and management overhead.

Transformation to emerging next generation architectures is complex and challenging.  This article discusses reference architectures for WAN and DC transformations, including lessons learned from engagements.