Cisco Catalyst 9407R User Manual

CHAPTER 7
Troubleshooting
• About this Section, on page 129
• System Boot Verification, on page 129
• Using LEDs to Identify Startup Problems, on page 130
• System Messages, on page 131
• Troubleshooting with Software , on page 131
• Troubleshooting a Power Supply Module, on page 132
• Troubleshooting the Fan Tray Assembly, on page 135
• Troubleshooting High Temperature Alarms , on page 137
• Troubleshooting the Switching Module, on page 138
• Troubleshooting Supervisor Modules, on page 138
• Contacting the Cisco Technical Assistance Center, on page 142
About this Section
This chapter describes how to perform basic troubleshooting on Cisco Catalyst 9400 Series Switches. Problems
with the initial startup are often caused by a switching module that has become dislodged from the backplane
or a power cord that is disconnected from the power supply.
Although temperature conditions above the maximum acceptable level rarely occur at initial startup, some
environmental monitoring functions are included in this chapter because they also monitor power supply
output voltages.
This chapter covers only the chassis component hardware aspects of troubleshooting. For software configuration
issues, refer to the software configuration guide
Note
System Boot Verification
When the initial system boot is complete, verify the following:
• That the system software boots successfully
Cisco Catalyst 9400 Series Switches Hardware Installation Guide
129

Cisco Catalyst 9407R Specifications

General

Brand	Cisco
Model	Catalyst 9407R
Category	Switch
Language	English