Allied Telesis AT-9000 Series - Manual (Page 102)

Chapter 5: Temperature and Fan Control Overview
74
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 78
 “NO ECOFRIENDLY LED” on page 79
 “SHOW ECOFRIENDLY” on page 80
 “SHOW SYSTEM ENVIRONMENT” on page 81