Use of the internet in corporate WANs is quickly growing. And for good reason.
Not only are internet services such as DIA and broadband cheaper than MPLS, many of the SaaS applications and cloud services that enterprises have adopted have been optimized to work over local internet connections rather than through central internet breakouts.
In addition, SD-WAN has emerged as a tool that allows WAN managers to incorporate these lower cost internet services into their network without sacrificing performance or security. But not every network site (or enterprise customer) is a good fit for an all internet WAN.
In our next two scenarios, we take an approach that we see many enterprises taking—designating network sites into tiers and assigning different network services to each tier. This allows companies to add in local internet breakouts at most offices, but keep some MPLS at higher priority sites that need service level assurances.
