Where to find information about the cause of high CPU utilization on Prisma SD-WAN?

Where to find information about the cause of high CPU utilization on Prisma SD-WAN?

• Prisma SD-WAN
• ION devices
• Strata Cloud Manager

1. On the portal, navigate to Activity tab and select the site in concern.
2. Click the System tab to view CPU utilization, Free Memory and Free Disk.
3. Check for any Alerts or Alarms relating to high cpu utilization such as:

• DEVICEHW_MEMUTIL_SWAPSPACE incident. This incident indicates high memory utilization and can be verified by checking the free memory on the device and inspecting the memory summary.
• DEVICESW_FPS_LIMIT_EXCEEDED incident. This incident indicates that the flow limit has been exceeded, which could be a symptom of high CPU utilization.
• DEVICESW_CONNTRACK_FLOWLIMIT_EXCEEDED incident. This incident indicates that the connection tracking flow limit has been exceeded, which could be related to high CPU utilization.
• DEVICESW_GENERAL_PROCESSRESTART and DEVICESW_GENERAL_PROCESSSTOP alerts. These alerts indicate process restarts or stopped processes, which could cause high CPU utilization on the ION devices.

4. On CLI, check the process that is consuming high CPU and memory by running the following commands.

• inspect process status
• inspect memory summary

5. Check if you have any core files generated by running file list core on CLI.
6. The above process may provide you with the information about the process/memory causing High CPU. If additional support is required, contact Palo Alto Networks Support.