HP Cisco Nexus 5000 Cisco Nexus 5000 Series Switch CLI Software Configuration - Page 51

Chapter 2 Using the Command-Line Interface Using the CLI Send feedback to [email protected] You can abbreviate commands and keywords by entering just enough characters to make the command unique from other commands. For example, you can abbreviate the configure terminal command to conf t. Changing Command Modes Configuration mode, also known as terminal configuration mode, has several submodes. Each of these submodes places you further down in the prompt hierarchy. When you type exit, the switch backs out of the current level and returns you to the previous level. When you type end, the switch backs out to the user EXEC level. You can also press Ctrl-Z in configuration mode as an alternative to typing end. Listing the Commands Used with Each Command Mode You can display the commands available in any command mode by typing a question mark (?) at the switch prompt. CLI Command Hierarchy CLI commands are organized hierarchically, with commands that perform similar functions grouped under the same level. For example, all commands that display information about the system, configuration, or hardware are grouped under the show command, and all commands that allow you to configure the switch are grouped under the configure terminal command. To execute a command, you enter the command by starting at the top level of the hierarchy. For example, to configure an interface, use the config terminal command. Once you are in configuration mode, enter the interface command. When you are in the interface submode, you can query the available commands. The following example shows how to query the available command in the interface submode: switch# configure terminal switch(config)# interface fc 3/1 switch(config-if)# ? channel-group add to/remove from a san-port-channel description Enter description of maximum 80 characters exit Exit from command interpreter fcdomain Configure fcdomain parameters fspf Configure FSPF parameters no Negate a command or set its defaults out-of-service Put an interface out of service. shutdown Enable/disable an interface switchport Configure switchport parameters EXEC Mode Commands When you start a session on the switch, you begin in EXEC mode. From EXEC mode, you can enter configuration mode. Most of the EXEC commands are one-time commands, such as show commands, which display the current configuration status. The following commands are available in EXEC mode: switch# ? callhome cd clear cli callhome commands Change current directory Reset functions CLI commands OL-16597-01 Cisco Nexus 5000 Series Switch CLI Software Configuration Guide 2-3