
Explanation
Box 1:2
https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-activeactive-rm-powershell Box 2: 2 Every Azure VPN gateway consists of two instances in an active-standby configuration. For any planned maintenance or unplanned disruption that happens to the active instance, the standby instance would take over (failover) automatically, and resume the S2S VPN or VNet-to-VNet connections.
Box 3: 2
Dual-redundancy: active-active VPN gateways for both Azure and on-premises networks References:
https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-highlyavailable