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HS08
HS08
Visitor III
September 15, 2025
Question

Sdwan failover

  • September 15, 2025
  • 1 reply
  • 387 views

If we have 2 sdwan rule where each rule have same source, same destination but only have different sdwan member like below, will the source will be switched from rule 16 to rule 17 if internet1 have bad performance?

Screenshot 2025-09-15 134050.png

1 reply

AEK
SuperUser
AEK
SuperUser
September 15, 2025

If you don't define performance SLA then it will only fail-over if the link is physically down.

However if you define it then it will monitor for performance and fail-over when required.

https://docs.fortinet.com/document/fortigate/7.6.4/administration-guide/584396/sd-wan-performance-sla

AEK
    HS08
    HS08Author
    Visitor III
    September 17, 2025

    The performance SLA already defined, so with that scenario the traffic will be switch to the rule 17 if internet connection on port 1 down?

    For the failover scenario, the sdwan traffic can switch to the rule on the bottom or only can switch in same rule (so we need multiple interface in one rule)?

    AEK
    SuperUser
    AEK
    SuperUser
    September 19, 2025

    When you define performance SLA for port1 SD-WAN member, when the port1 doesn't meet the conditions it is considered as down (becomes red) and the traffic is handled by rule 17.

    AEK
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