I See Red for ios instal12/30/2023 ![]() ![]() ![]() The key to success when troubleshooting the system is to isolate the problem to a specific system component. If any of these conditions is not met, use the procedures in this chapter to isolate and, if possible, resolve the problem. If all of these conditions are met and the hardware installation is complete, refer to the software configuration guide andĬommand reference publications for your switch so that you can troubleshoot the software. That the supervisor and all line cards are installed properly in their slots, and that each initialized without problems. Use the show environment Cisco IOS command to view fan tray activity. The Fan tray LED should be green during operation. That the system fan assembly is operating Use the show environment Cisco IOS command to view power supply activity. That the power supplies are supplying power to the system Terminal emulation software set for 9600 baud, 8 data bits, no parity, and 1 stop bit. Use an RJ-45-to-RJ-45 rollover cable to connect the console port to a PC with Hook up a terminal and view the startup banner. That the system software boots successfully When the initial system boot is complete, verify the following: This chapter covers only the chassis component hardware aspects of troubleshooting. Problems with the initial startup are often caused by a line card that has become dislodged from the backplane or a powerĬord that is disconnected from the power supply.Īlthough temperature conditions above the maximum acceptable level rarely occur at initial startup, some environmental monitoringįunctions are included in this chapter because they also monitor power supply output voltages. This chapter describes how to perform basic troubleshooting on Cisco Catalyst 9400 Series Switches. ![]() Contacting the Cisco Technical Assistance Center.Troubleshooting High Temperature Alarms.Using LEDs to Identify Startup Problems. ![]()
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