A water utility separates DMVPN hubs onto dual mGRE clouds so public-safety sites keep an independent path if one overlay fails. What resiliency pattern does that describe?
Select an answer to reveal the explanation.
Short Explanation
Dual-cloud dual-hub is two separate emergency radio channels — if one channel dies, public-safety still has the other. More spoke config, better isolation. That is the resiliency pattern water utilities pick when correlated overlay failure is unacceptable.
Full Explanation
Dual-hub dual-cloud DMVPN places hubs in separate mGRE overlay clouds so a failure in one cloud does not take down the alternate hub path. Spokes typically run multiple tunnels or tunnel endpoints, trading configuration complexity for stronger failure-domain isolation than single-cloud dual hub. It is not the same as disabling Phase 3 features or applying MPLS RT concepts to DMVPN. Use dual cloud when public-safety sites need independent overlay paths.