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).
- On the FortiGate, enable SD-WAN and add wan1 and wan2 as SD-WAN members, then add a policy and static route. See Configuring the SD-WAN interface for details.
- Go to Network > Performance SLA.
- Create a new Performance SLA or edit an existing one. See Performance SLA - link monitoring.
- Under SLA Targets, click the plus icon to add a target.
- Turn on or off the required constraints, and set their values.
- Configured the remaining settings as needed, then click OK.
config system virtual-wan-link config health-check edit "server" set server "220.127.116.11" 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
link-cost-factor variable is used to select which constraints are enabled.