Command to power off (not reset) module in Cisco 4500?

When working with a Cisco 4500 switch, an IT administrator may need to power off the switch module. This is not the same as resetting the module, and the command to do so is not immediately obvious.

The command to power off a Cisco 4500 switch module is “hw-module module [#] power off”. This command is entered in privileged EXEC mode and should be followed by the number of the module that needs to be powered off. For example, if the administrator wanted to power off module 5, they would enter “hw-module module 5 power off”.

Once the command is entered, the module will be powered off within a few seconds. It is important to note that any configuration changes made to the module will be lost, so it is important to make sure that any configuration changes have been saved before powering off the module.

The “hw-module module [#] power off” command can also be used to power on the module. This is done by entering the command “hw-module module [#] power on”, followed by the number of the module that needs to be powered on. It is important to note that if the module was previously powered off due to an error, the error will still be present after powering on the module.

It is also important to note that after a module is powered off, the switch will display a message stating that the module is unavailable. This message can be cleared by entering the command “clear module [#]”, followed by the number of the module. This command will clear the message and allow the module to be powered on.

In addition to the “hw-module module [#] power off” command, there are other commands that can be used to power off a Cisco 4500 switch module. One of these is the “shutdown module [#]” command, which will gracefully shut down the module by allowing any running processes to finish before powering off the module. This is the preferred method for powering off a module, as it prevents any data loss that could occur if the module was powered off abruptly.

The “hw-module module [#] power off” command is an important command to know when working with a Cisco 4500 switch. It is used to power off a module, and can also be used to power on a module. It is important to note that any configuration changes made to the module will be lost when the module is powered off, so it is important to make sure that any changes have been saved before powering off the module. It is also important to note that if a module was previously powered off due to an error, the error will still be present after powering on the module. Additionally, the “shutdown module [#]” command can be used to gracefully shut down the module.