SDWAN Overlay Link failover takes 3 minutes

[martyyy]

Hi,

FOS  7.2.8

I'm testing my SDWAN overlay link failover and it takes around 3 minutes most likely due to BGP holddown timer 180secs.

I've tweaked the BGP timers based on the link below and It takes about 15seconds now for failover. Is there way I can have a failover of 500ms, what timers should I set?

Facilitating the fastest BGP route failov... - Fortinet Community

Appreciate your feedbacks. Thank you :)

[knaveenkumar]

get router info routing-table det  <destination IP >

Also, check that tunnels are also down during that time.

please check the  reconvergence time 

[knaveenkumar]

please check the document for ref

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https://community.fortinet.com/t5/FortiGate/Technical-Tip-Facilitating-the-fastest-BGP-route-failove...

[adimailig]

May I verify if you already have SDWAN Performance SLA to check the status of your Overlays?
https://community.fortinet.com/t5/FortiGate/Technical-Tip-SD-WAN-health-check-for-IPsec-Interface/ta...