In FortiOS 7.6, SD-WAN Performance SLAs are used to measure link quality and influence SD-WAN rule decisions. The following three statements are true.
C. All the SLA targets can be configured.
True
SD-WAN Performance SLAs allow administrators to configure:
Latency
Jitter
Packet loss
Mean Opinion Score (MOS) (for voice)
Threshold values for these metrics are fully configurable per SLA.
This is explicitly documented in the SD-WAN Performance SLA configuration section.
D. They are applied in an SD-WAN rule lowest cost strategy.
True
Performance SLAs are commonly used with the Lowest Cost (SLA-based) strategy.
In this strategy:
FortiGate selects the lowest-cost link that meets the SLA requirements.
If a link violates the SLA, it is excluded from selection.
E. They can be measured actively or passively.
True
FortiOS supports:
Active probing (synthetic probes such as ping/HTTP)
Passive measurement (based on real traffic statistics)
Administrators can choose how SLAs are measured depending on the deployment and requirements.
Why the other options are incorrect
A. They rely on session loss and jitter.
Incorrect
SLAs measure packet loss, latency, and jitter.
Session loss is not an SLA metric in FortiOS.
B. They monitor the state of the FortiGate device.
Incorrect
Performance SLAs monitor link quality, not FortiGate system health or device state.
