Allied Telesis AT-9000 Series - Overview

Chapter 5: Temperature and Fan Control Overview
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Overview
The switch monitors the environmental status, such as temperature and
voltage, and the status of fan modules. Checking this information helps
you to identify potential hardware issues before they become problems.
To check the switch’s environmental and saving energy status, and turn
on and off the port LEDs, use the following commands:
 “ECOFRIENDLY LED” on page 106
 “NO ECOFRIENDLY LED” on page 107
 “SHOW ECOFRIENDLY” on page 108
 “SHOW SYSTEM ENVIRONMENT” on page 109