Qtech QSW-2910-09T-POE-AC/DC [18/212] Syntax help

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1.1.3 Syntax Help

There is built-in syntax help in command line interface. If you are not sure about the syntax of

some command, obtain all command and its simple description of the current mode by

inputting ―?‖ or help command; list all keywords beginning with the current character string by

inputting ―?‖ closely after the command character string; input ―?‖ after space, if ―?‖ is in the

same location of the keyword, all keywords and its simple description will be listed, if ―?‖ is in

the same location of parameter, all the parameter description will be listed, and you can

continue to input command according to the prompt until the prompt command is ―<enter>‖ to

press enter button to execute command.

For example:

Directly input “?”in privileged mode

QTECH#?

System mode commands:

cls clear screen

help description of the interactive help

ping ping command

quit disconnect from switch and quit

……

Input “?” closely after keyword

QTECH(config)#interf?

interface

Input “?”after command character string and space

QTECH(config)#spanning-tree ?

forward-time config switch delaytime

hello-time config switch hellotime

max-age config switch max agingtime

priority config switch priority

<enter> The command end.

4. Parameter range and form

QTECH(config)#spanning-tree forward-time ?

INTEGER<4-30> switch delaytime: <4-30>(second)

Command line end prompt

QTECH(config)#spanning-tree ?

<enter> The command end.

1.1.4 History command

Command line interface will save history command inputted by user automatically so that user