Information About Internal Power Supplies
See the switch installation guide for information about the power supplies.
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See the switch installation guide for information about the power supplies.
You can use the power supply EXEC command to configure and manage the internal power supply on the switch. The switch does not support the no power supply EXEC command.
Follow these steps beginning in user EXEC mode:
Command or Action | Purpose | |||
---|---|---|---|---|
Step 1 |
power supply switch_number slot {A | B } { off | on } Example:
|
Sets the specified power supply to off or on by using one of these keywords:
By default, the switch power supply is on. |
||
Step 2 |
show environment power Example:
|
Verifies your settings. |
Command |
Purpose |
---|---|
show environment power [ all | switch switch_number ] |
(Optional) Displays the status of the internal power supplies for each switch in the stack or for the specified switch. The range is 1 to 9, depending on the switch member numbers in the stack. The switch keywords are available only on stacking-capable switches. |
This example shows how to set the power supply in slot A to off:
Switch# power supply 1 slot A off
Disabling Power supply A may result in a power loss to PoE devices and/or switches ... Continue? (yes/[no]): yes
Switch#
Jun 10 04:52:54.389: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered off
Jun 10 04:52:56.717: %PLATFORM_ENV-1-FAN_NOT_PRESENT: Fan is not present
Switch#
This example shows how to set the power supply in slot A to on:
Switch# power supply 1 slot A on
Jun 10 04:54:39.600: %PLATFORM_ENV-6-FRU_PS_OIR: FRU Power Supply 1 powered on
This example shows the output of the show env power command:
Switch# show env power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
--- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C2-640WAC DCB1705B05B OK Good Good 640
1B Not Present
Switch#
Field | Description |
---|---|
OK |
The power supply is present and power is good. |
Not Present |
No power supply is installed. |
No Input Power |
The power supply is present but there is no input power. |
Disabled |
The power supply and input power are present, but power supply is switched off by CLI. |
Not Responding |
The power supply is not recognizable or is faulty. |
Failure-Fan |
The power supply fan is faulty. |
Description | Link |
---|---|
To help you research and resolve system error messages in this release, use the Error Message Decoder tool. |
https://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi |
MIB | MIBs Link |
---|---|
All supported MIBs for this release. |
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Description | Link |
---|---|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
Release |
Modification |
---|---|
Cisco IOS XE 3.2SECisco IOS XE 3.3SECisco IOS XE 3.3SE |
This feature was introduced. |