Only a limited subset of the commands are available in user EXEC mode. For example, most of the user EXEC commands are one-time commands, such as show commands, which show the current configuration status, and clear commands, which clear counters or interfaces. The user EXEC commands are not saved when the switch reboots. To have access to all commands, you must enter privileged EXEC mode. Normally, you must enter a password to enter privileged EXEC mode. From this mode, you can enter any privileged EXEC command or enter global configuration mode. Using the configuration modes (global, interface, and line), you can make changes to the running configuration. If you save the configuration, these commands are stored and used when the switch reboots. To access the various configuration modes, you must start at global configuration mode. From global configuration mode, you can enter interface configuration mode and line configuration mode. This table describes the main command modes, how to access each one, the prompt you see in that mode, and how to exit the mode.īegin a session using Telnet, SSH, or console. While in user EXEC mode, enter the enable command. Use this mode to verify commands that you have entered. Use a password to protect access to this mode. While in privileged EXEC mode, enter the configure command. To exit to privileged EXEC mode, enter exit or end, or press Ctrl-Z. Use this mode to configure parameters that apply to the entire switch. While in global configuration mode, enter the vlan vlan-id command. To exit to global configuration mode, enter the exit command.
To return to privileged EXEC mode, press Ctrl-Z or enter end. Use this mode to configure VLAN parameters. When VTP mode is transparent, you can create extended-range VLANs (VLAN IDs greater than 1005) and save configurations in the switch startup configuration file. While in global configuration mode, enter the interface command (with a specific interface). To exit to global configuration mode, enter exit. Use this mode to configure parameters for the Ethernet ports.
While in global configuration mode, specify a line with the line vty or line console command.
Use this mode to configure parameters for the terminal line. You can enter a question mark (?) at the system prompt to display a list of commands available for each command mode. You can also obtain a list of associated keywords and arguments for any command. Obtains a brief description of the help system in any command mode. Obtains a list of commands that begin with a particular character string. Lists all commands available for a particular command mode. Length of time (in sec) that receiver must keep this packet Lists the associated keywords for a command.
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