Cisco WS-X6K-SUP1A-2GE-RF Software Guide - Page 44

MSFC Command-Line Interface Chapter 2 Command-Line Interfaces Accessing Command Help Enter help or ? in normal or privileged mode to see the commands available in those modes. On selected commands, entering help or ? after a command provides additional information, such as a command usage description. Command usage, the help menu, and when appropriate, parameter ranges are provided if you enter a command using the wrong number of arguments or inappropriate arguments. Additionally, appending help or ? to a command category displays a list of commands in that category. MSFC Command-Line Interface These sections describe the MSFC CLI: • Cisco IOS Command Modes, page 2-8 • Cisco IOS Command-Line Interface, page 2-10 Note In addition to the methods described in the "Accessing the MSFC from the Switch" section on page 2-3, you can configure IOS to support direct Telnet access to the MSFC. Refer to "Configuring Authentication" in the Cisco IOS Security Configuration Guide: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/secur_c/scprt1/scdathen.htm Cisco IOS Command Modes The Cisco IOS user interface is divided into many different modes. The commands available to you depend on which mode you are currently in. To get a list of the commands in a given mode, type a question mark (?) at the system prompt. For more information, see the "Getting a List of IOS Commands and Syntax" section on page 2-9. When you start a session on the switch, you begin in user mode, often called user EXEC mode. Only a limited subset of the commands are available in EXEC mode. To have access to all commands, you must enter privileged EXEC mode. Normally, you must type in a password to access privileged EXEC mode. From privileged EXEC mode, you can type in any EXEC command or access global configuration mode. Most of the 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 EXEC commands are not saved across reboots of the switch. The configuration modes allow you to make changes to the running configuration. If you later save the configuration, these commands are stored across switch reboots. You must start at global configuration mode. From global configuration mode, you can enter interface configuration mode, subinterface configuration mode, and a variety of protocol-specific modes. ROM monitor mode is a separate mode used when the switch cannot boot properly. For example, the switch might enter ROM monitor mode if it does not find a valid system image when it is booting, or if its configuration file is corrupted at startup. For more information, see the "ROM-Monitor Command-Line Interface" section on page 2-1. Table 2-5 lists and describes the most commonly used Cisco IOS modes. Catalyst 6000 Family Software Configuration Guide-Releases 6.3 and 6.4 2-8 78-13315-02