Technical Tip: SD-WAN interface is showing status 'Unknown' on SD-WAN dashboard widget

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Description	This article describes the case when the SD-WAN interface may show the status 'unknown' on the SD-WAN dashboard widget, even if without any issue with this interface.
Scope	FortiGate.
Solution	SD-WAN widget (former SD-WAN monitor) determines link status using measurements made by Performance SLA (health-check). If no health check is configured for the interface, the status will be unknown. This status would be changed after adding this SD-WAN interface as a participant on at least one performance SLA and it should reach the remote server to show 'Up'. FGT # diag sys sdwan health-check | grep -i wan1 Seq(1 wan1): state(alive), packet-loss(0.000%) latency(1.465), jitter(0.554), bandwidth-up(999989), bandwidth-dw(999929), bandwidth-bi(1999918) sla_map=0x0