Need help in increasing CPU utilization for Cisco Switch

[mahazz12]

Hello,

I have a cisco switch (Cisco Catalyst C9300) and want to increase CPU utilization of the switch. I am passing lots of different types and heavy traffic on the switch through TRex, but the CPU utilization is stuck on 1%. No matter how much I try, the CPU utilization is not increasing.

I also tried disabling STP which increased CPU utilization to about 40%, but every time it resulted in losing my SNMP connection to which my monitoring tool and switch were connected, hence I am unable to further monitor the switch (for throughput etc).

I am new to networking and want to conduct experiments, so I want that the CPU utilization 0%, 50% and 100% (or you can say variations in CPU utilizations up to MAX) in order to carry out the tests. Can someone please help me out with how do I increase the CPU utilization? 

TIA.

[Joseph W. Doherty]

BTW, just recalled you might be able, easily and precisely, cause switch's CPU to run at different load percentages using scripting. Use a NO-OP loop.

Again, not knowing how switch prioritizes script execution, don't know impact when you push to 100% usage.