To confirm that the interface is enabled, use the show config command in INTERFACE mode. To leave
INTERFACE mode, use the exit command or end command. You cannot delete a physical interface.
Physical Interfaces
The switch interfaces support Layer 2 and Layer 3 traffic over the 100/1000/10000, 10-Gigabit, and 40-
Gigabit Ethernet interfaces. These interfaces can also become part of virtual interfaces such as virtual
local area networks (VLANs) or port channels.
For more information about VLANs, refer to Bulk Configuration. For more information on port channels,
refer to Physical Interfaces.
Dell Networking OS Behavior: The MXL 10/40GbE switch systems use a single MAC address for all
physical interfaces.

Configuration Task List for Physical Interfaces

By default, all interfaces are operationally disabled and traffic does not pass through them.
The following section includes information about optional configurations for physical interfaces:
•Overview of Layer Modes
•Configuring Layer 2 (Data Link) Mode
•Configuring Layer 2 (Interface) Mode
•Configuring Layer 3 (Interface) Mode
•Configuring Layer 3 (Network) Mode
•Management Interfaces
•Auto-Negotiation on Ethernet Interfaces
•Adjusting the Keepalive Timer
•Clearing Interface Counters

Overview of Layer Modes

On all systems running the Dell Networking OS, you can place physical interfaces, port channels, and
VLANs in Layer 2 mode or Layer 3 mode.
By default, VLANs are in Layer 2 mode.
Type of Interface Possible Modes Requires Creation Default State
10/100/1000 Ethernet,
Gigabit Ethernet, 10
Gigabit Ethernet
Layer 2
Layer 3
No Shutdown (disabled)
Management N/A No Shutdown (disabled)
Loopback Layer 3 Yes No shutdown (enabled)
Null interface N/A No Enabled
Interfaces 401