Public and hybrid cloud adoption has a major ripple effect on enterprise network design. New bottlenecks arise, and some businesses need to alter their network configurations — particularly those for wide area networks — to ensure they get the performance they need.
With hybrid and public clouds, in particular, the networking focus shifts heavily to wide area network (WAN) connections. Businesses need to link their data centers to their public cloud provider’s sites, and often rely on their existing internet lines to do so. But this approach has shortcomings.
First, bandwidth is an issue. Traffic that used to roam about the data center now needs to move off-site, often increasing WAN traffic. Consequently, organizations may need to upgrade their internet lines, which can be expensive; pricing depends on a business’ location and amount of bandwidth needed.