These charts display the distribution of traffic across three dimensions—overlays, interfaces, and transport. You can view each option individually, or in relation to another.
For instance, for a given interface, you can see how the overlay traffic is distributed.
You can also view how much traffic is transported from one EdgeConnect appliance to another on the SD‑WAN fabric (Overlays), versus how much is broken out locally, direct to the internet. The Underlay legend displays non-overlay traffic.