WAN edge infrastructure is one of the most rapidly changing areas of IT, driven largely by the unabated migration of business applications to SaaS offerings and to public clouds or IaaS instances. As reported recently by Forbes, 83 percent of enterprise workloads will be hosted in the cloud by 2020. No longer centrally hosted solely in corporate data centers, applications are now hosted anywhere, and often in multiple locations.
SaaS and IaaS providers strategically host their services in multiple data centers around the globe in metropolitan cities where business users are located. Connecting users to the closest SaaS and IaaS instances minimizes data transmission latency or delay and delivers the highest cloud application performance to end users.
Thanks to Brand Post (see source)