Chapter 3
Troubleshooting
Troubleshooting Chart
The following table lists symptoms, causes, and solutions of possible problems.
Table 3-1. Troubleshooting Chart
Problem | Cause | Solution |
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Power LED is off. | No power is received | Check the power cord connections for the |
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| switch at the switch and the connected |
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| device. |
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| Make sure that all cables used are correct |
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| and comply with Ethernet specifications. |
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Link LED is off or intermittent. | Port connection is not | Check the crimp on the connectors, and |
| working. | make sure that the plug is properly inserted |
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| and locked into the port at both the switch |
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| and the connecting device. |
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| Make sure that all cables used are correct |
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| and comply with Ethernet specifications. |
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| See “Technical Specifications” in |
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| Appendix A. |
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| Check for a defective adapter card, cable, |
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| or port by testing it in an alternate |
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| environment where all products are |
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| functioning. |
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File transfer is slow, or | Half or full duplex setting on | Make sure that the attached device is set to |
performance degradation is a | the switch and the connected | auto negotiate. |
problem. | device are not the same. | Check the system message log. |
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