Refer to the exhibit.

The destination matches the corporate SD-WAN service configured in Lowest Cost (SLA) mode. Its diagnostic listing marks six overlay interfaces alive and selected, but shows sla(0x0) and num of pass(0) for all of them. Under the default minimum SLA member behavior, FortiOS may fall back to operational out-of-SLA paths rather than automatically bypassing the service. Thus a blanket conclusion that FortiGate must route only according to the FIB is not supported by this diagnostic alone. All six selected overlays are candidate paths, subject to routing reachability and member-cost rules. Reference: FortiOS 7.6 — Lowest Cost (SLA) and minimum-sla-meet-members. An operational review should distinguish the rule that matches the traffic from the interface that is ultimately selected. Valid forwarding also depends on destination route eligibility, current member state and the applicable SLA or quality-selection algorithm. A diagnostic showing configured members alone is not conclusive evidence that all those members will carry a particular flow.

Verification qualification: Six selected out-of-SLA entries do not by themselves prove that every interface will be used for this destination.