When in configuration mode, what can the commit command do?

The commit command in Junos OS has a specific function when operating within configuration mode. It applies the changes made to the configuration at any hierarchy level. This means that regardless of where you are in the configuration tree, the commit command will save and activate all changes made in the current and all sub-levels of the hierarchy, making them effective immediately in the running configuration.

When in configuration mode, it is essential to understand that the ability to commit configurations applies broadly. It allows users to implement changes without requiring movement back to the top of the hierarchy to make those changes effective. Instead, it ensures that alterations made at any level are recognized and applied system-wide when the commit command is executed. This flexibility is vital for maintaining configurations efficiently in network management.