Switchport Mode - Cisco Catalyst 2960-X Command Reference Manual

switchport mode

switchport mode
To configure the VLAN membership mode of a port, use the switchport mode command in interface
configuration mode. To reset the mode to the appropriate default for the device, use the no form of this
command.
switchport mode {access| dynamic | {auto| desirable}| trunk}
noswitchport mode {access| dynamic | {auto| desirable}| trunk}
Syntax Description
access
dynamic auto
dynamic desirable
trunk
Command Default
The default mode is dynamic auto.
Command Modes
Interface configuration
Command History
Release
Cisco IOS 15.0(2)EX
Usage Guidelines
A configuration that uses the access,or trunk keywords takes effect only when you configure the port in the
appropriate mode by using the switchport mode command. The static-access and trunk configuration are
saved, but only one configuration is active at a time.
When you enter access mode, the interface changes to permanent nontrunking mode and negotiates to convert
the link into a nontrunk link even if the neighboring interface does not agree to the change.
Catalyst 2960-X Switch Layer 2 Command Reference, Cisco IOS Release 15.0(2)EX
116
Sets the port to access mode (either static-access or dynamic-access depending on the
setting of the switchport access vlan interface configuration command). The port is
set to access unconditionally and operates as a nontrunking, single VLAN interface that
sends and receives nonencapsulated (non-tagged) frames. An access port can be assigned
to only one VLAN.
Sets the port trunking mode dynamic parameter to auto to specify that the interface
convert the link to a trunk link. This is the default switchport mode.
Sets the port trunking mode dynamic parameter to desirable to specify that the interface
actively attempt to convert the link to a trunk link.
Sets the port to trunk unconditionally. The port is a trunking VLAN Layer 2 interface.
The port sends and receives encapsulated (tagged) frames that identify the VLAN of
origination. A trunk is a point-to-point link between two switches or between a switch
and a router.
Modification
This command was introduced.
Layer 2 Commands
OL-29043 -01