Switchport Mode - Cisco 4500M Command Reference Manual

switchport mode

switchport mode
To set the interface type, use the switchport mode command. To reset the mode to the appropriate
default mode for the device , use the no form of the command.
Syntax Description
access
dot1q-tunnel
trunk
dynamic auto
dynamic desirable
private-vlan host
private-vlan
promiscuous
private-vlan trunk
Defaults
Link converts to a trunk link.
dot1q tunnel ports are disabled.
Command Modes
Interface configuration
Command History Release
12.1(8a)EW
12.2(18)EW
Usage Guidelines
If you enter access mode, the interface goes into permanent nontrunking mode and negotiates to convert
the link into a nontrunk link even if the neighboring interface does not approve t he change.
If you enter trunk mode, the interface goes into permanent trunking mode and negotiates to convert the
link into a trunk link even if the neighboring interface does not approve the change.
If you enter dynamic auto mode, the interface converts the link to a trunk link if the neighboring
interface is set to trunk or desirable mode.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
2-462
switchport mode {access | dot1q-tunnel | trunk | dynamic {auto | desirable}}
switchport mode private-vlan {host | promiscuous | trunk}
no switchport mode dot1q-tunnel
no switchport mode private-vlan
Specifies a nontrunking, nontagged single VLAN Layer 2 interface.
Specifies an 802.1Q tunnel port.
Specifies a trunking VLAN Layer 2 interface.
Specifies that the interface convert the link to a trunk link.
Specifies that the interface actively attempt to convert the link to a trunk link.
Specifies that the ports with a valid PVLAN trunk association becomes active host
private VLAN trunk ports.
Specifies that the ports with a valid PVLAN mapping become active promiscuous
ports.
Specifies that the ports with a valid PVLAN trunk association becomes active host
private VLAN trunk ports.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Support was added for configuring dot1q tunnel ports.
Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
78-16201-01