SD-WAN is similar to google maps, or waze GPS app. The app builds a route, and uses the traffic volume, transit time, and alternate paths, to find the best route to the destination. But like these apps, you can also enter additional criteria such as avoid tolls, avoid bad roads, avoid this and that, etc... there is even the option to take the best route based on the transit type, such as walking, or driving, or bike riding. SD-WAN functions similarly. You can simply take the best path, but when traffic picks up, select and alternative route. Or if using one application called bike, then take the path selected for bike. If using an application called bus, then take the path defined for bus. if using an application called car, avoid delays SD-WAN is basically a super fast way to calculate traffic and provide the best path based on the application, or method of transport, and the costs associated with that selection.
UPDATE: This entry was the Community Choice Prize winner! Here's the announcement. Congratulations, mmistretta! 🎉
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