Question 640
A FortiOS 7.6 team examines: A link reports healthy at layer one but the SD-WAN service never includes it in candidate paths. Select TWO complementary choices: the most appropriate corrective action AND the specific evidence confirming success.
Explanation
Correct Answers
For the observed situation (A link reports healthy at layer one but the SD-WAN service never includes it in candidate paths), the most specific acceptance evidence is: SD-WAN member status, zone membership and a controlled flow agree with the approved path selection. It validates the recommended response: Assign supported WAN interfaces to appropriate FortiGate SD-WAN members and zones before applying zone-scoped policy and steering. This addresses the documented risk: An omitted WAN member or wrong zone can prevent an uplink from participating even while the physical port is operational.
The reported FortiOS 7.6 condition is: A link reports healthy at layer one but the SD-WAN service never includes it in candidate paths. The targeted administrative response is: Assign supported WAN interfaces to appropriate FortiGate SD-WAN members and zones before applying zone-scoped policy and steering. The relevant failure risk is: An omitted WAN member or wrong zone can prevent an uplink from participating even while the physical port is operational. Validate with: SD-WAN member status, zone membership and a controlled flow agree with the approved path selection.
Incorrect Answers
Static route distance and priority (4.1) would demonstrate or implement: Mismatched distance or priority can select a slower WAN path while the preferred next hop remains available. The case states: the most appropriate corrective action AND the specific evidence confirming success. The most direct paired action and test is: SD-WAN member status, zone membership and a controlled flow agree with the approved path selection.
Equal-cost route redundancy and path verification (4.1) addresses another technical failure: Assuming equal-cost paths provide perfect balancing or fast failover without link monitoring can cause session disruption. This choice can be useful for that problem, but it does not establish the Sd-wan members and zones control being assessed here.
Static route next-hop reachability (4.1) would demonstrate or implement: A bounded trace and route lookup show the gateway is reachable and the authorized flow leaves by the intended interface. The paired-answer requirement concerns Sd-wan members and zones; this alternative does not provide the matching intervention and separate acceptance evidence.