Network Module Leds; Rear Panel - Cisco Catalyst 9300 Series Hardware Installation Manual

Product Overview

Network Module LEDs

Color
Off
Green
Blinking green
Blinking amber
Amber

Rear Panel

The switch rear panel includes StackWise connectors, StackPower or XPS connectors, ports, fan modules,
and power supply modules.
Network Module Link Status
Link is off.
Link is on; no activity.
Activity on a link; no faults.
The LED will blink green even when there is very little control traffic.
Note
Link is off due to a fault or because it has exceeded a limit set in the switch software.
Caution Link faults occur when noncompliant cabling is connected to an
SFP/SFP+/SFP28 port. Use only standard-compliant cabling to connect to
Cisco SFP/SFP+/SFP28 ports. You must remove from the network any cable
or device that causes a link fault.
Link for the SFP/SFP+/SFP28 has been disabled.
Cisco Catalyst 9300 Series Switches Hardware Installation Guide
Network Module LEDs
21