Qtech QSW-3300-28F-AC-AC [53/693] Using the no form of a command

Qtech QSW-3300-28F-AC-AC [53/693] Using the no form of a command
Using the “No” Form of a Command
Software User Manual
CLI Command Reference
Page 70
Using the “No” Form of a Command
The no keyword is a specific form of an existing command and does not represent a new or distinct command.
Almost every configuration command has a
no form. In general, use the no form to reverse the action of a
command or reset a value back to the default. For example, the
no shutdown configuration command reverses
the shutdown of an interface. Use the command without the keyword
no to re-enable a disabled feature or to
enable a feature that is disabled by default. Only the configuration commands are available in the
no form.
Executing Show Commands
All show commands can be issued from any configuration mode (Global Configuration, Interface Configuration,
VLAN Configuration, etc.). The show commands provide information about system and feature-specific
configuration, status, and statistics. Previously, show commands could be issued only in User EXEC or
Privileged EXEC modes.
CLI Output Filtering
Many CLI show commands include considerable content to display to the user. This can make output confusing
and cumbersome to parse through to find the information of desired importance. The CLI Output Filtering feature
allows the user, when executing CLI show display commands, to optionally specify arguments to filter the CLI
output to display only desired information. The result is to simplify the display and make it easier for the user to
find the information the user is interested in.
The main functions of the CLI Output Filtering feature are:
Pagination Control
Logical Interfaces Port-channel or Link Aggregation Group (LAG) interfaces are logical interfaces
that are only used for bridging functions.
VLAN routing interfaces are only used for routing functions.
Loopback interfaces are logical interfaces that are always up.
Tunnel interfaces are logical point-to-point links that carry encapsulated
packets.
CPU ports CPU ports are handled by the driver as one or more physical entities located on
physical slots.
Note: In the CLI, loopback and tunnel interfaces do not use the unit/slot/port format. To specify a
loopback interface, you use the loopback ID. To specify a tunnel interface, you use the tunnel ID.
Table 4: Type of Ports
Port Type Description

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