Layer 2 protocols are disabled by default. To enable Layer 2 protocols, use the no disable command.For example, in PROTOCOL SPANNING TREE mode, enter no disable to enable Spanning Tree.Obtaining HelpObtain a list of keywords and a brief functional description of those keywords at any CLI mode usingthe ? or help command:• To list the keywords available in the current mode, enter ? at the prompt or after a keyword.• Enter ? after a prompt lists all of the available keywords. The output of this command is the same forthe help command.Dell#?cd Change current directoryclear Reset functionsclock Manage the system clockconfigure Configuring from terminalcopy Copy from one file to anotherdebug Debug functions--More--• Enter ? after a partial keyword lists all of the keywords that begin with the specified letters.Dell(conf)#cl?class-mapclockDell(conf)#cl• Enter [space]? after a keyword lists all of the keywords that can follow the specified keyword.Dell(conf)#clock ?summer-time Configure summer (daylight savings) timetimezone Configure time zoneDell(conf)#clockEntering and Editing CommandsNotes for entering commands.• The CLI is not case-sensitive.• You can enter partial CLI keywords.– Enter the minimum number of letters to uniquely identify a command. For example, you cannotenter cl as a partial keyword because both the clock and class-map commands begin with theletters “cl.” You can enter clo, however, as a partial keyword because only one command beginswith those three letters.• The TAB key auto-completes keywords in commands. Enter the minimum number of letters touniquely identify a command.• The UP and DOWN arrow keys display previously entered commands (refer to Command History).• The BACKSPACE and DELETE keys erase the previous letter.• Key combinations are available to move quickly across the command line. The following tabledescribes these short-cut key combinations.Short-Cut KeyCombinationActionCNTL-A Moves the cursor to the beginning of the command line.Configuration Fundamentals 39
