Using the Command-Line Interface 115
Understanding Error Messages
If you enter a command and the system is unable to execute it, an error 
message appears. Table 5-2 describes the most common CLI error messages.
If you attempt to execute a command and receive an error message, use the 
question mark (?) to help you determine the possible keywords or parameters 
that are available.
Recalling Commands from the History Buffer
Every time a command is entered in the CLI, it is recorded in an internally 
managed Command History buffer. By default, the history buffer is enabled 
and stores the last 10 commands entered. These commands can be recalled, 
reviewed, modified, and reissued. This buffer is not preserved after switch 
resets.
Table 5-2. CLI Error Messages
Message Text Description
% Invalid input 
detected at '^' 
marker.
Indicates that you entered an incorrect or 
unavailable command. The carat (^) shows 
where the invalid text is detected. This message 
also appears if any of the parameters or values are 
not recognized.
Command not found / 
Incomplete command. 
Use ? to list 
commands.
Indicates that you did not enter the required 
keywords or values.
Ambiguous command
Indicates that you did not enter enough letters to 
uniquely identify the command.