This KB article will help in what to do when CPU Load is high on SDWAN Edge is and how to check it.
SDWAN Edge
This symptom is caused by multiple reason including heavy traffic which loading on CPU cores causing high utilization is appears.
Pre-checks:
- Check the Edge model and the specifications including throughput capacities (scroll to bottom in this website for updated VMware SD-WAN Edge platform specification datasheet).
- Check if the Edge is carrying too many small sized packets (for example voice or video). As the packet size reduces, throughput capacity of the Edge also reduces.
- Check for any high CPU issues in the release note of the higher version that might be fixed.
Finally if all above steps are sorted, you are requested to create a case with Support team in order to check further why CPU utilization is high by providing Diagnostic bundle from the edge during the Issue State.