Administrator Guide

Using the Command-Line Interface 193
To connect to the switch using Telnet, the switch must have an IP address,
and the switch and management station must have network connectivity. Any
Telnet client on the management station can be used to connect to the
switch.
A Telnet session can also be initiated from the Dell EMC OpenManage
Switch Administrator. For more information, see "Initiating a Telnet Session
from the Web Interface" on page 439.
Understanding Command Modes
The CLI groups commands into modes according to the command function.
Each of the command modes supports specific software commands. The
commands in one mode are not available until the user switches to that
particular mode, with the exception of the User Exec mode commands. The
User Exec mode commands can be executed in the Privileged Exec mode.
To display the commands available in the current mode, enter a question
mark (?) at the command prompt. In each mode, a specific command is used
to navigate from one command mode to another.
The main command modes include the following:
• User Exec (0) — Commands in this mode permit connecting to remote
devices, changing terminal settings on a temporary basis, performing basic
tests, and listing limited system information.
• Privileged Exec (1) — Commands in this mode enable viewing all switch
settings and entering Global Configuration mode.
• Global Configuration (15) — Commands in this mode manage the device
configuration on a global level and apply to system features, rather than to
a specific protocol or interface.
• Interface Configuration (15) — Commands in this mode configure the
settings for a specific interface or range of interfaces.
• VLAN Configuration (15) — Commands in this mode create and remove
VLANs and configure IGMP/MLD Snooping parameters for VLANs.
NOTE: SSH, which is more secure than Telnet, is disabled by default.