The ambient temperature and device running time affect the device temperature. A higher ambient temperature and a longer device running time indicate a higher temperature of the device. When the device temperature exceeds the specified range, the device service life and performance are reduced. To prevent the device from overheating, set temperature alarm thresholds for the device. When the device temperature exceeds the specified range, the device sends an alarm to the NMS to alert the administrator. The administrator should then can take measures to lower the temperature.

NOTE:

Only fixed switches support the configuration of temperature alarm thresholds.

# To set the lower temperature alarm threshold to 20°C and upper temperature alarm threshold to 45°C on a device with slot ID 0, run the following commands:

<HUAWEI> system-view
[HUAWEI] temperature threshold slot 0 lower-limit 20 upper-limit 45

More Information: S Series Switches Common Operation Guide