The command line interface (CLI) is an interface through which you can interact with a router. The system provides a series of commands that allow you to configure and manage the router.
The CLI is a traditional configuration tool, which is available on most data communication products. However, with the wider application of data communication products worldwide, customers require a more available, flexible, and friendly CLI.
Carrier-class devices have strict requirements for system security. Users must pass the Authentication, Authorization and Accounting (AAA) authentication before logging in to a CLI or before running commands, which ensures that users can view and use only the commands that match their rights.