
show environment
Cisco 12000 Series Gigabit Switch Routers 59
measurement is out of line within these time segments, an automatic warning message appears on
the console. As noted, you can query the environmental status with the show environment
command at any time to determine whether a measurement is at the warning or critical tolerance.
If a shutdown occurs because of detection of fatal environmental margins, the last measured value
from each sensor is stored in internal nonvolatile memory.
For environmental specifications, refer to the hardware installation and configuration publication for
your individual chassis.
If the Cisco 12000 series exceeds environmental conditions, a message similar to the one below is
displayed on the console:
%GSR_ENV-2-WARNING: Slot 3 Hot Sensor Temperature exceeds 40 deg C;
Check cooling systems
Note Blower temperatures that exceed environmental conditions do not generate a warning
message.
Sample Displays
The following examples are for the Cisco 12000 series Gigabit Switch Routers.
The following is sample output from the show environment command for a Cisco 12012. Slots 0
through 11 are the line cards, slots 16 and 17 are the clock and scheduler cards, slots 18 through 20
are the switch fabric cards, slots 24 through 27 are the power supplies, and slots 28 and 29 are the
blowers. An “NA” in the table means that no values was returned. In some cases it is because the
equipment is not supported for that environmental parameter (for example, the power supply and
blowers in slots 24, 26, 28, and 29 do not have a 3V power supply so an NA is displayed).
Router# show environment
Slot # 3V 5V MBUS 5V Hot Sensor Inlet Sensor
(mv) (mv) (mv) (deg C) (deg C)
0 3300 4992 5040 42.0 37.0
2 3296 4976 5136 40.0 33.0
4 3280 4992 5120 38.5 31.5
7 3280 4984 5136 42.0 32.0
9 3292 4968 5160 39.5 31.5
11 3288 4992 5152 40.0 30.5
16 3308 NA 5056 42.5 38.0
17 3292 NA 5056 40.5 36.5
18 3304 NA 5176 36.5 35.0
19 3300 NA 5184 37.5 33.5
20 3304 NA 5168 36.5 34.0
24 NA 5536 5120 NA 31.5
26 NA 5544 5128 NA 31.5
28 NA NA 5128 NA NA
29 NA NA 5104 NA NA
Slot # 48V AMP_48
(Volt) (Amp)
24 46 12
26 46 19
Slot # Fan 0 Fan 1 Fan 2
(RPM) (RPM) (RPM)
28 2160 2190 2160
29 2130 2190 2070
Router#
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