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Temperature Management OmniSwitch 6600 Series Chassis and Hardware Components
page 2-44 OmniSwitch 6600 Series Hardware Users Guide April 2004
Temperature Errors
The switch monitors the chassis ambient air temperature at all times via an onboard sensor. If an over-
temperature condition occurs, there are two different levels of error severity:
• Warning threshold has been exceeded
• Danger threshold has been exceeded
Warning Threshold
If the temperature exceeds the switch’s user-configurable warning threshold, the switch sends out a trap.
Traps are printed to the console in the form of text error messages. The chassis TEMP LED also displays
amber, indicating an error. (Refer to page 2-11 for status LED locations and descriptions.)
When the warning threshold has been exceeded, switch operations remain active. However, it is recom-
mended that immediate steps be taken to address the over-temperature condition.
Addressing warning threshold temperature conditions may include:
• Checking for a chassis air flow obstruction
• Checking the ambient room temperature
• Checking the fan status using the show fan command. See page 2-45 for more information.
• Verifying that the warning threshold has not been manually set to an otherwise common or acceptable
ambient temperature—for example, 31 degrees Centigrade. (The default warning threshold is 57
degrees Celsius. This value may be configured using the temp-threshold command. The current warn-
ing threshold may be viewed using the show temperature command.)
Note. Once the ambient air temperature is reduced to below the warning threshold, the switch’s
TEMP LED automatically resets to green.
Danger Threshold
If the chassis ambient air temperature rises above the switch’s danger threshold of 80 degrees Centigrade,
the switch will power off. The danger threshold is factory-set and cannot be configured by the user.
Addressing danger threshold temperature conditions may include:
• Checking for a chassis air flow obstruction
• Checking the ambient room temperature
• Checking the fan status using the show fan command. See page page 2-45 for more information.
Note. When the danger threshold has been exceeded, the switch’s TEMP LED will not reset from amber to
green until after a system boot.