Cisco Catalyst 9400

Table 35: Troubleshooting CPU Utilization Problems
Corrective ActionCauseType of Problem
Determine the source of the
network packet. Stop the flow, or
change the switch configuration.
The CPU is receiving too many
packets from the network.
Interrupt percentage value is
almost as high as total CPU
utilization value.
Identify the unusual event, and
troubleshoot the root cause.
One or more Cisco IOS process is
consuming too much CPU time. This
is usually triggered by an event that
activated the process.
Total CPU utilization is greater
than 50% with minimal time spent
on interrupts.
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
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Troubleshooting the Software Configuration
Example: Verifying the Problem and Cause for High CPU Utilization