Service Manual

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The only way to remove an interface from the Default VLAN is to place the interface in Default mode by using the no switchport
command in INTERFACE mode.
Assigning an IP Address to a VLAN
VLANs are a Layer 2 feature. For two physical interfaces on dierent VLANs to communicate, you must assign an IP address to the
VLANs to route trac between the two interfaces.
The shutdown command in INTERFACE mode does not aect Layer 2 trac on the interface; the shutdown command only
prevents Layer 3 trac from traversing over the interface.
NOTE: You cannot assign an IP address to the Default VLAN (VLAN 1). To assign another VLAN ID to the Default VLAN,
use the default vlan-id vlan-id command.
In Dell Networking OS, you can place VLANs and other logical interfaces in Layer 3 mode to receive and send routed trac. For more
information, refer to Bulk Conguration.
To assign an IP address, use the following command.
• Congure an IP address and mask on the interface.
INTERFACE mode
ip address ip-address mask [secondary]
– ip-address mask — Enter an address in dotted-decimal format (A.B.C.D) and the mask must be in slash format (/24).
– secondary — This is the interface’s backup IP address. You can congure up to eight secondary IP addresses.
Conguring Native VLANs
Traditionally, ports can be either untagged for membership to one VLAN or tagged for membership to multiple VLANs.
You must connect an untagged port to a VLAN-unaware station (one that does not understand VLAN tags), and you must connect
a tagged port to a VLAN-aware station (one that generates and understands VLAN tags).
Native VLAN support breaks this barrier so that you can connect a port to both VLAN-aware and VLAN-unaware stations. Such
ports are referred to as hybrid ports. Physical and port-channel interfaces may be hybrid ports.
Native VLAN is useful in deployments where a Layer 2 port can receive both tagged and untagged trac on the same physical port.
The classic example is connecting a voice-over-IP (VOIP) phone and a PC to the same port of the switch. The VOIP phone is
congured to generate tagged packets (with VLAN = VOICE VLAN) and the attached PC generates untagged packets.
NOTE: When a hybrid port is untagged in a VLAN but it receives tagged trac, all trac is accepted.
NOTE: You cannot congure an existing switchport or port channel interface for Native VLAN. Interfaces must have no
other Layer 2 or Layer 3 congurations when using the portmode hybrid command or a message similar to this
displays:
% Error: Port is in Layer-2 mode Gi 5/6.
To congure a port so that it can be a member of an untagged and tagged VLANs, use the following commands.
1. Remove any Layer 2 or Layer 3 congurations from the interface.
INTERFACE mode
2. Congure the interface for Hybrid mode.
INTERFACE mode
portmode hybrid
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Virtual LANs (VLANs)