Configuration Guide     450
Configuring QoS Voice VLAN Configuration
4 
Voice VLAN Configuration
To complete the voice VLAN configurations, follow these steps:
1)  Create a 802.1Q VLAN
2)  Configure OUI addresses
3)  Configure Voice VLAN globally
4)  Add ports to Voice VLAN
Configuration Guidelines
Before configuring voice VLAN, you need to create a 802.1Q VLAN for voice traffic. For 
details about 802.1Q VLAN Configuration, please refer to 
Configuring 802.1Q VLAN
.
VLAN 1 is a default VLAN and cannot be configured as the voice VLAN.
Only one VLAN can be set as the voice VLAN on the switch.
4.1  Using the GUI
4.1.1  Configuring OUI Addresses
The OUI address is assigned as a unique identifier by IEEE (Institute of Electrical and 
Electronics Engineers) to a device vendor. It is used by the switch to determine whether a 
packet is a voice packet.
If the OUI address of your voice device is not in the OUI table, you need to add the OUI 
address to the table.
Choose the menu QoS > Voice VLAN > OUI Config to load the following page.