Automatic IPSec failover and failback between two XGs with two WAN ports each

Hello

According to XG Firewall v17.5 specification:

„VPN and SD-WAN Failover and Failback including new IPSec failover and failback controls and SD-WAN link failback options.”

 

Does it really works between two XGs with two WAN ports each ? - 4 variants of the IPSec list are theoretically possible:

XG1-WAN1 to XG2-WAN1

XG1-WAN1 to XG2-WAN2

XG1-WAN2 to XG2-WAN1

XG1-WAN2 to XG2-WAN2

 

Does it really works, automatic?

Best Regards Peter