How many businesses today have deployed SD-WAN, and how do you see this percentage growing?

Schubert: I would say it's less than 10 percent, but it's constantly growing. These conversations are coming up more and more and it will be a standard piece of the conversation from here on out.

Singer: SD-WAN must be a part of every client conversation because every customer can benefit from SD-WAN with no risk, and more to gain from it after that. There are a lot of customers that are interested and the issue is that many customers that stand to gain the most from it are in the middle of their contract [with a carrier] and might be ready to go, but maybe have to wait a year or two. But somewhere within the next two to three years we are going to see a lot of customers begin deploying SD-WAN as they reach the end of their MPLS contracts.