Инструкции По Установке для 3com S7906E

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If you execute the same command repeatedly, the device saves only the earliest command. 
However, if you execute the same command in different formats, the system considers them as 
different commands. For example, if you execute the display cu command repeatedly, the system 
saves only one command in the history buffer; if you execute the command in the format of display 
cu and display current-configuration respectively, the system saves them as two commands. 
Follow these steps to access history commands: 
To do… 
Use the key/command… 
Result 
View the history commands 
display history-command 
Displays the commands that 
you have entered 
Access the previous history 
command 
Up-arrow key or Ctrl+P 
Displays the earlier history 
command, if there is any. 
Access the next history 
command 
Down-arrow key or Ctrl+N 
Displays the next history 
command, if there is any. 
 
 
You may use arrow keys to access history commands in Windows 200X and XP Terminal or Telnet. 
However, the up-arrow and down-arrow keys are invalid in Windows 9X HyperTerminal, because they 
are defined in a different way. You can press Ctrl+P or Ctrl+N instead. 
 
Command Line Error Information 
The commands are executed only if they have no syntax error. Otherwise, error information is reported. 
 lists some common errors. 
Table 1-7 Common command line errors 
Error information 
Cause 
The command was not found. 
The keyword was not found. 
Parameter type error 
% Unrecognized command found at '^' position.
The parameter value is beyond the allowed 
range. 
% Incomplete command found at '^' position. 
Incomplete command 
% Ambiguous command found at '^' position. 
Ambiguous command,  
Too many parameters 
Too many parameters 
% Wrong parameter found at '^' position. 
Wrong parameter