Great input @BrechtSchamp @NolanHerring @jdsilva on previous replies.  @DDThompson Since it's a conversation involving SD-WAN and tertiary cellular backup, I'll also just add that the cellular backup is NOT part of the SD-WAN ruleset today.  Just in case that was a follow-up question you might hear, SD-WAN applies to WAN1/WAN2 only, today.  Notice I keep saying "today".  🙂  The wishes are coming in and an FR is in place for including cellular SD-WAN rules for certain use-cases to leverage cellular as a true 3rd SD-WAN interface, unfortunately there is no ETA at this time so keep an eye on the release notes later in 2019. ... View more