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Troubleshooting
Hardware Diagnostic Tests
Hardware Diagnostic Tests
Testing the Switch by Resetting It
If you believe the switch is not operating correctly, you can reset the switch to test its circuitry and operating code. To reset a switch, either:
■unplug and plug in the power cord (power cycling)
■press the Reset button on the front of the switch
Power cycling the switch and pressing the Reset button both cause the switch to perform its
Checking the Switch LEDs
The self test passes if the Fault and Test LEDs on the front of the switch go off after approximately 50 seconds. If these LEDs stay on longer than 60 seconds or begin blinking, there may be a problem with the switch.
See “Diagnosing With the LEDs” on page
Checking Console Messages
Useful diagnostic messages may be displayed on the console screen when the |
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switch is reset. As described in chapter 2 under step 7, “Connect a Console to |
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the Switch”, connect a PC running a |
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standard |
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at 9600 baud, and with the other terminal communication settings shown on |
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page |
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displayed. Additionally, you can check the switch event log, which can be |
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accessed from the console using the show log command, or from the console | Troubleshooting | |
Main Menu. | ||
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