Users Guide
To remove an interface from Layer 2 mode and place it in Layer 3 mode, enter the no switchport command. If 
a switchport backup interface is congured, rst remove the backup conguration. To remove a switchport backup 
interface, enter the no switchport backup interface command.
Parameters
backup (OPTIONAL) Use this option to congure a redundant Layer 2 link without using Spanning 
Tree. The keyword backup congures a backup port so that if the primary port fails, the 
backup port changes to the up state. If the primary later comes up, it becomes the 
backup.
interface interface (OPTIONAL) Enter any of the following keywords and the interface information:
• For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then 
the stack/slot/port/subport information.
• For a 25-Gigabit Ethernet interface, enter the keyword twentyFiveGigE then the 
stack/slot/port/subport information.
•
For a 40-Gigabit Ethernet interface, enter the keyword fortyGigE then the stack/
slot/port[/subport] information.
• For a 50-Gigabit Ethernet interface, enter the keyword fiftyGigE then the stack/
slot/port/subport information.
• For a 100-Gigabit Ethernet interface, enter the keyword hundredGigE then the 
stack/slot/port information.
port-channel (OPTIONAL) Enter the keywords port-channel if the backup port is a static or 
dynamic port channel.
mode (OPTIONAL) Enter the keyword mode to set the interface mode.
private-vlan (OPTIONAL) Enter the keywords private-vlan to set the interface mode to private 
VLAN mode.
host (OPTIONAL) Enter the keyword host to set the private VLAN interface to host mode.
promiscuous (OPTIONAL) Enter the keyword promiscuous to set the private VLAN interface to 
promiscuous mode.
trunk (OPTIONAL) Enter the keyword trunk to set the private VLAN interface to trunk mode.
Defaults Disabled — interface is in Layer 3 mode.
Command Modes INTERFACE
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking 
OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
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