Out-of-band control

Okay kiddo, have you ever played a video game and used a controller to move your character around? Well, think of out-of-band control as having another controller that you can use to tell your character what to do without having to use the regular controller.

In real life, out-of-band control is when someone has a way to control something without using the usual methods. For example, if you have a TV remote, you can use it to turn the TV off or change the channel. But what if the remote runs out of batteries and you can't use it anymore? Well, you can still turn off the TV by pressing the button on the TV itself. This is like having an out-of-band method for controlling the TV.

In computer networks, out-of-band control is like having a backup way to control the system just in case something goes wrong with the usual way. For example, if a network administrator needs to change some settings on a server, they might use a special connection that is separate from the regular network connection. This way, if the regular connection gets disconnected or stops working, they can still make changes using the out-of-band connection.

So, out-of-band control is just having an extra way to control something when the usual way is not available. It's like having a backup plan to make sure things keep working even if something goes wrong.