Configuring an 802.1X voice VLAN
You can configure an 802.1X voice VLAN on an 802.1X-enabled port that connects to a voice terminal. The 802.1X voice VLAN feature is effective only on voice terminals that support VLAN-tagged packets.
The 802.1X voice VLAN feature works with a remote authentication server. The device uses the following process to implement this feature:
Identifies a voice terminal from the packet sent by the authentication server when the terminal passes 802.1X authentication.
The authentication server identifies the terminal type by its OUI and sends the terminal type information to the device.
Assigns the port to the configured voice VLAN as a tagged member and sends the voice VLAN information through an LLDP or CDP packet to the terminal.
A voice terminal is not associated with a specific voice VLAN. The voice VLAN assigned to the voice terminal depends on the voice VLAN configuration on the access port.