On the switch, you will find one or two physical connectors for the console. Telnet and SSH are both options for remote access. We typically use this the first time we configure the switch. The console is a physical port on the switch that allows access to the CLI. Access to Cisco IOS CLIīefore we can enter any commands, we need access to the CLI.
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In this lesson, I’ll explain how to access the CLI and the basics of how Cisco IOS works. It’s also much easier to copy entire configurations from one device to another. This might sound dated but with so many commands that are available to use, the CLI is much easier to work with than any of the graphical interfaces. There are also GUIs (Graphical User Interface) for the routers, switches and firewalls but the majority of the work is done on the CLI. You type in configuration commands and use show commands to get the output from the router or switch. Most Cisco devices (including routers and switches) use a CLI (Command Line Interface) to configure the network device. User and Enable mode (Privileged Exec Mode).
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