Dedicated Management CPU
The web‑based manager and CLI of FortiGate units with NP6 and NP4 processors may become unresponsive when the system is under heavy processing load because NP6 or NP4 interrupts overload the CPUs preventing CPU cycles from being used for management tasks. You can resolve this issue by using the following command to dedicate CPU core 0 to management tasks.
config system npu
set dedicated-management-cpu {enable | disable}
end
All management tasks are then processed by CPU 0 and NP6 or NP4 interrupts are handled by the remaining CPU cores.