Performance SLA - SLA targets

SLA targets are a set of constraints that are used in SD-WAN rules to control the paths that traffic take.

The available constraints are:

• Latency threshold: Latency for SLA to make decision, in milliseconds (0 - 10000000, default = 5).
• Jitter threshold: Jitter for SLA to make decision, in milliseconds (0 - 10000000, default = 5).
• Packet loss threshold: Packet loss for SLA to make decision, in percentage (0 - 100, default = 0).

To configure Performance SLA targets using the GUI:

1. On the FortiGate, enable SD-WAN and add wan1 and wan2 as SD-WAN members, then add a policy and static route. See Creating the SD-WAN interface for details.
2. Go to Network > Performance SLA.
3. Create a new Performance SLA or edit an existing one. See Performance SLA - link monitoring.
4. Under SLA Targets, click the plus icon to add a target.
5. Turn on or off the required constraints, and set their values.

   

6. Configured the remaining settings as needed, then click OK.

To configure Performance SLA targets using the GUI:

config system virtual-wan-link
    config health-check
        edit "server"
            set server "208.91.114.182"
            set members 1 2
            config sla
                edit 1
                    set link-cost-factor latency jitter packet-loss
                    set latency-threshold 10
                    set jitter-threshold 10
                    set packetloss-threshold 1
                next
            end
        next
    end
end

The link-cost-factor variable is used to select which constraints are enabled.