FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
This article describes what to do when a device experiences transient high system CPU (softirq) and a recurring level of src-vis CPU usage in user space.
Scope
All supported versions of FortiGate.
Solution
src-vis daemon/process is used for device identification configured on the interfaces, and it is used to gather information about the devices operating on the network:
MAC address.
IP address.
Operating system.
Hostname.
User name.
How long ago the device was detected and on which FortiGate interface.
The device experiences transient high system CPU (softirq) and a recurring level of src-vis CPU usage in user space.
A CPU profiling taken at a time of high system CPU would show a pattern like:
