Rarely do I have a conversation about networking when the topic of software-defined WANs (SD-WANs) does not come up. It’s far and away the thing that network professionals care most about, even ahead of data center SDNs.
In a data center, enterprises can steer people out of problems as there’s always an abundance of experienced engineers locally available to tackle any issue big or small. That luxury does not exist with the WAN because branch offices can be scattered across the globe and often, the best one can hope for in terms of a local resource is a branch administrator or someone who can check lights or confirm things are plugged in and powered up. Also, for many geographically distributed organizations, the WAN is their business – so having an agile, dynamic WAN that enables applications to perform better is a top priority.