WAN optimization has been with us for a long time. Born alongside expensive and capacity constrained WAN connectivity, such as MPLS, WAN optimization appliances allowed organizations to squeeze more bandwidth out of thin pipes through compression, and prioritize traffic of loss-sensitive applications such as remote desktops.
The dramatic changes in network traffic patterns, from inwards towards the data center to outwards towards the cloud, is challenging the base premise for dedicated WAN optimization appliances.
First, the growth in Internet- and cloud- bound traffic is accelerating the introduction of direct secure internet access at branch locations. These links have a higher capacity at a lower cost, making bandwidth expansion easier and more affordable. Second, the use of public cloud applications is incompatible with using WAN optimizer at both edges of the link, as enterprises can’t control that traffic going into cloud applications.
These changes are leading to convergence….