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0 exec timeout value indicate the system will never exit Admin Mode automatically.
Example: Set timeout value for the switch to exit Admin Mode to 6 minutes.
Switch(Config)#exec timeout 6
Command: exit
Function: Exit the current mode to the previous mode. Under Global Mode, this
command will return the user to Admin Mode, and in Admin Mode to User Mode, etc.
Command mode: All configuration modes.
Example:
Switch#exit
Switch>
Command: help
Function: Output brief description of the command interpreter help system.
Command mode: All configuration modes.
Usage Guide: An instant online help provided by the switch. Help command displays
information about the whole help system, including complete help and partial help. The
user can type in ? any time to get online help.
Example:
Switch>help
enable -- Enable Privileged mode
exit -- Exit telnet session
help -- help
show -- Show running system information
Command: ip host <hostname> <ip_addr>
no ip host <hostname>
Function: Set the mapping relationship between the host and IP address; the “no ip host”