Remember when, not long ago, cellular wireless technology was primarily used for backup connectivity? With the introduction of 4G and SD-WAN, enterprises were able to augment their primary WAN connection with wireless using an active/active configuration. Faster 4G speeds meant that wireless could be considered as primary connectivity alongside Internet and MPLS modes of transport. In addition, 4G could also help bring up locations in remote places where MPLS or alternative connectivity was nonexistent.
Over the last ten years, we’ve seen the evolution of 4G. First LTE, then LTE Advanced, and LTE Advanced Pro. And now brings the promise of 5G.
