show environment power-supply


show environment power-supply [vsx-peer]


Shows status information about all power supplies in the switch.

Command context

Operator (>) or Manager (#)



Shows the output from the VSX peer switch. If the switches do not have the VSX configuration or the ISL is down, the output from the VSX peer switch is not displayed.


Operators or Administrators. Users without administrator authority can execute this command from the operator context (>) only.


The following information is provided for each power supply:


Shows the member and slot number of the power supply.

Product Number

Shows the product number of the power supply.

Serial Number

Shows the serial number of the power supply, which uniquely identifies the power supply.

PSU Status

The status of the power supply. Values are:


Power supply is operating normally.


Power supply is operating normally, but it is the only power supply in the chassis. One power supply is not sufficient to supply full power to the switch. When this value is shown, the output of the command also shows a message at the end of the displayed data.


No power supply is installed in the specified slot.

Input fault

The power supply has a fault condition on its input.

Output fault

The power supply has a fault condition on its output.


The power supply is not operating normally.

Wattage Maximum

Shows the maximum amount of wattage that the power supply can provide.


Showing the output when only one power supply is active in the chassis:

switch> show environment power-supply
         Product  Serial           PSU           Wattage
Mbr/PSU  Number   Number           Status        Maximum
1/1      JL372A   M031RM002JAFC    OK*           2700
1/2      N/A      N/A              Absent        0
1/3      N/A      N/A              Input Fault   0
1/4      JL372A   M031RM003JAFC    Output Fault  0

* More than one active power supply required to supply full power to the switch