The following section is a summary of the major points you should be aware of in this chapter.
Troubleshooting at the Physical Layer
- If you have physical access to the switch, the LEDs can be a very useful troubleshooting tool
- Cisco switches have front panel LEDs that can be used to determine link and system status
- A link or port LED color other than green typically indicates some kind of failure
- However, a green link light does not always mean that the network cable is fully functional
- The . . .
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