
Command Reference
58
Release 11.2 GS
show environment
To display temperature, voltage, and blower information on the Cisco 12000 series Gigabit Switch
Router, use the show environment privileged EXEC command.
show environment [alarms | all | fans | hardware | last | leds | power-supply | table |
temperatures | voltages]
Syntax Description
Default
If no options are specified, the current environmental parameters are displayed.
Command Mode
Privileged EXEC
Usage Guidelines
This command was modified in Cisco IOS Release 11.2 GS to include the alarms, fans, hardware,
leds, power-supply, temperature, and voltages keywords and to provide sample output for the
Cisco 12000 series Gigabit Switch Routers.
Once a minute a routine is run that gets environmental measurements from sensors and stores the
output into a buffer. This buffer is displayed on the console when show environment is invoked.
If a measurement exceeds desired margins, but has not exceeded fatal margins, a warning message
is printed to the system console. The system software queries the sensors for measurements once a
minute, but warnings for a given test point are printed at most once every hour for sensor readings
in the warning range and once every 5 minutes for sensor readings in the critical range. If a
alarms (Optional) Displays the alarm contact information.
all (Optional) Displays a detailed listing of the power supplies,
temperature readings, voltage readings, and blower speeds.
fans (Optional) Displays blower and fan information.
hardware (Optional) Displays hardware-specific information.
last (Optional) Displays information on the last measurement made.
leds (Optional) Displays the status of the MBus LEDs on the clock and
scheduler cards and switch fabric cards.
power-supply (Optional) Displays power supply voltage and current information.
table (Optional) Displays the temperature, voltage, and blower thresholds.
temperature (Optional) Displays temperature information.
voltages (Optional) Displays voltage information.
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