QSW-4700 Series Switches Hardware Installation and Reference Guide
Monitoring and Maintenance
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5.
MONITORING AND MAINTENANCE
5.1. Monitoring
5.1.1. LED
When the switch is running, you can monitor the module status by observing the module LED.
•
If the SYS indicator is red, it indicates that the system is faulty. Log in to the web-based
management system to troubleshoot the fault.
•
If the SYS indicator is yellow, it indicates that the system temperature reaches the
warning value. This case may affect the system performance, but the system can
continue working. Log in to the web-based management system to troubleshoot the
fault.
•
For example, if the Status LED keeps blinking or turns red, it indicates the switch is
faulty. You are advised to identify the fault cause, and power off the switch when
necessary.
•
If the PW1/PW2 indicator is yellow, it indicates that the power supply module is not
supported. You are advised to replace the power supply module.
•
If the PW1/PW2 indicator is red, check whether the power cord is plugged in and
supplies power to the switch. If yes, you are advised to replace the power supply module.
Note:
If the Status LED keeps blinking during device positioning, it is not a fault symptom.
5.1.2. CLI Commands
You can run the CLI commands to monitor system status, including:
•
System status
•
Port configuration and status
•
Fan and power supply status
•
System temperature
Note:
For the monitoring commands, see QTECH QSW-4700 Series Switches Configuration Guide.
5.2. Maintenance
5.2.1. Cooling System Maintenance
•
If the fan module fails, an alarm will be generated.
•
Replace the failed fan module.
•
Tighten the captive screws.
5.2.2. Power Supply Module Maintenance
When a power supply module is faulty, unplug the power cord, replace the power supply module,
plug the power cord again, and close the cable retention clip to secure the power cord to the
power supply module.
