Users Guide
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 trac 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
congured to generate tagged packets (with VLAN = VOICE VLAN) and the attached PC generates untagged packets.
NOTE: You cannot congure an existing switchport or port channel interface for Native VLAN. Interfaces must have no
other Layer 2 or Layer 3 congurations when using the
portmode hybrid command or a similar message displays: %
Error: Port is in Layer-2 mode Gi 5/6.
To congure a port so that it can be a member of untagged and tagged VLANs, use the following commands.
1. Remove any Layer 2 or Layer 3 congurations from the interface.
INTERFACE mode
2. Congure the interface for Hybrid mode.
INTERFACE mode
portmode hybrid
3. Congure the interface for Switchport mode.
INTERFACE mode
switchport
4. Add the interface to a tagged or untagged VLAN.
VLAN INTERFACE mode
[tagged | untagged]
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Virtual LANs (VLANs)