Technical Tip: How to optimize SD-WAN performance SLA for time sensitive applications like VoIP, VoD and IPTV for better convergence

[Mohammed_Feroz]

Description	This article describes how to configure SD-WAN rules and performance SLA for time-sensitive applications.
Scope	FortiOS 7.0.11,7.2.5 and 7.4.0 and above.
Solution	Some applications are very sensitive to network quality hence they would need to be set up with a lower-performance SLA check interval for better convergence. In the below example: Policy 1 VOIP is set up to use the best quality link with the performance SLA check interval of 20ms for packet loss  so a better convergence rate is achieved: Note: The default performance SLA value is set to 500ms and that can be reduced to 20ms from FortiOS 7.0.11,7.2.5 and 7.4.0 and above which is recommended for time-sensitive applications. CLI for the above performance SLA interval: config system sdwan     config health-check         edit "VOIP_Server"             set interval 20 (value from <20> to <3600000> ms )     end end