Overview Of Layer Modes; Configuring Layer 2 (Data Link) Mode - Dell S3048-ON Configuration Manual

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Overview of Layer Modes

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Configuring Layer 2 (Data Link) Mode

• Configuring Layer 2 (Interface) Mode
• Management Interfaces
• Auto-Negotiation on Ethernet Interfaces
• Adjusting the Keepalive Timer
• Clearing Interface Counters
Overview of Layer Modes
On all systems running 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.
Table 23. Layer Modes
Type of Interface
1 Gigabit Ethernet and 10 Gigabit
Ethernet
Management
Loopback
Null interface
Port Channel
VLAN
Configuring Layer 2 (Data Link) Mode
Do not configure switching or Layer 2 protocols such as spanning tree protocol (STP) on an interface unless the interface has been set to
Layer 2 mode.
To set Layer 2 data transmissions through an individual interface, use the following command.
• Enable Layer 2 data transmissions through an individual interface.
INTERFACE mode
switchport
Example of a Basic Layer 2 Interface Configuration
Dell(conf-if)#show config
!
interface Port-channel 1
no ip address
switchport
no shutdown
Dell(conf-if)#
326 Interfaces
Possible Modes
Layer 2
Layer 3
N/A
Layer 3
N/A
Layer 2
Layer 3
Layer 2
Layer 3
Requires Creation
No
No
Yes
No
Yes
Yes, except for the default
VLAN.
Default State
Shutdown (disabled)
Shutdown (disabled)
No shutdown (enabled)
Enabled
Shutdown (disabled)
No shutdown (active for Layer
2)
Shutdown (disabled for Layer 3 )