Reset Watchdog Timer

Change History

openUBMC Version	Revision Date	Description
25.06	2025/06/26	Initial draft: add command details

Basic Information

Function Description

Resets the BMC watchdog timer.

Privilege

PowerMgnt

Command Information

Request Information

Byte	Data Field
NetFn	App 06h
CMD	22h
-	N/A

Response Information

Byte	Data Field
1	Completion Code. Generic plus the following command-specific completion codes: 80h=Attempt to start un-initialized watchdog. It is recommended that a BMC implementation return this error completion code to indicate to software that a Set Watchdog Timer command has not been issued to initialize the timer since the last system power on, reset, or BMC reset. Note that since many systems may initialize the watchdog timer during BIOS operation, this condition may only be seen by software if a BMC gets re-initialized during system operation (as might be the case if a firmware update occurred, for example).

Byte

Data Field

Completion Code. Generic plus the following command-specific completion
codes:
80h=Attempt to start un-initialized watchdog. It is recommended that a
BMC implementation return this error completion code to indicate to software that a Set Watchdog Timer command has not been issued
to initialize the timer since the last system power on, reset, or BMC
reset. Note that since many systems may initialize the watchdog timer
during BIOS operation, this condition may only be seen by software if
a BMC gets re-initialized during system operation (as might be the
case if a firmware update occurred, for example).

Command Example

Reset the BMC watchdog timer.

Request:

bash

ipmicmd -k "0f 00 06 22" smi 0

Response:

text

0f 07 00 22 80

Reset Watchdog Timer ​

Change History ​

Basic Information ​

Function Description ​

Privilege ​

Command Information ​

Request Information ​

Response Information ​

Command Example ​

Reset the BMC watchdog timer. ​

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