APPENDIX B
Understanding the LEDs
The switch consists of multiple LEDs to monitor switch activity and performance. You can also monitor the
status of the fan tray assembly and the power supplies.
• LED Indicators, on page 106
• System LED, on page 107
• Power Supply LEDs, on page 108
• Port LEDs and Modes, on page 108
• Beacon LED, on page 110
• Fan LED, on page 111
• Ethernet Management Port LED, on page 111
Cisco Catalyst 9500 Series Switches Hardware Installation Guide
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