Switch Status from LEDs
Switch LEDs
When an engineer needs to examine how a switch is working to verify its current status and to troubleshoot any problems, the vast majority of the time is spent using commands from the Cisco IOS CLI. However, the switch hardware does include several LEDs that provide some status and troubleshooting information, both during the time right after the switch has been powered on and during ongoing operations. Before moving on to discuss the CLI, this brief section examines the switch LEDs and their meanings.
Most Cisco Catalyst switches have some LEDs, including an LED for each physical Ethernet interface. For example, ...
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