To use VPN resiliency/redundancy, configure a list of VPN gateways, instead of just one:
This is a balanced but incomplete XML configuration fragment. It includes all closing tags, but omits some important elements to complete the IPsec VPN configuration.
This XML tag sets the IPsec VPN connection as ping-response-based. The VPN connects to the FortiGate which responds the fastest.
By default, RedundantSortMethod =0 and the IPsec VPN connection is priority-based. Priority-based configurations try to connect to the FortiGate starting with the first in the list.