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FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
bpriya
Staff
Staff
Description
The article describes to set Minimum number of links for a rule to take effect.

Solution
In SLA and load-balance modes, it is possible to specify the number of links that can be up for the rule to take effect.

Example.

In this example, ports 1 to 4 each have 10Mbps of bandwidth, and port 5 has 50Mbps.
An application requires 35Mbps of bandwidth, so the SD-WAN rule balances the traffic between ports 1 to 4.
If one of the links goes down, all of the traffic must be passed to port 5, so the minimum required number of links is 4.

To set the minimum number of links in a rule.

From CLI.
# config system sdwan
    # config service

        edit 1
            set mode load-balance
            set minimum-sla-meet-members 4
            set dst <destination>
            # config sla
                edit <sla>
                    set id <id>
                next
            end
            set priority-members 1 2 3 4
        next
    end
end

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