What does the command 'set' accomplish in Junos?

The command 'set' in Junos is used to apply changes to the configuration. When you enter the 'set' command in operational mode or configuration mode, you are defining specific settings or parameters for various aspects of the device's configuration. This is essential for customizing how the network device operates, such as configuring interfaces, routing protocols, security features, and more.

Using 'set' enables the user to create or modify configurations interactively. Once these changes are made, they can then be committed to the device to take effect. This process allows network administrators to tailor the device settings according to their network requirements and operation policies.

Understanding the function of the 'set' command is critical for effective configuration management in Junos environments. Other commands serve different purposes, such as displaying current configurations or updating software, but 'set' specifically focuses on making changes to the device's configuration.