Hi,I have below requirement Have 2 WAN linksNeed to steer the O365 destinated traffic by default from WAN1. If the WAN1 link was hit 90% percent of the bandwidth, need to be fail-over to WAN2. After the WAN1 utilization become fine need to fail-over again to WAN1.Can we do this in SD-WAN?

nsm

New Member

Question

SD-WAN link selection based on link utilization

Forum|Forum|11 months ago
June 11, 2025
1 reply
640 views

Hi,

I have below requirement

Have 2 WAN links
Need to steer the O365 destinated traffic by default from WAN1. If the WAN1 link was hit 90% percent of the bandwidth, need to be fail-over to WAN2. After the WAN1 utilization become fine need to fail-over again to WAN1.

Can we do this in SD-WAN?

knaveenkumar

Staff

Hi ,

Yes you can use sdwan spillover method and achieve this

please refer the below article :

==========================

https://community.fortinet.com/t5/FortiGate/Technical-Tip-SD-WAN-usage-based-spillover-load-balance-method-s/ta-p/282227

Naveen

nsmAuthor

New Member

Hi,

Yes I checked this. But Spillover is applied for the traffic that is not matched for any sd-wan rule.isn't it?. I need to steer only O365 related traffic not the all internet traffic.

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