Installation manual

4-270
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switchport voice vlan
This command specifies the Voice VLAN mode for ports. Use the no form to disable the
Voice VLAN feature on the port.
Syntax
switchport voice vlan {manual | auto}
no switchport voice vlan
• manual - The Voice VLAN feature is enabled on the port, but the port must be
manually added to the Voice VLAN.
• auto - The port will be added as a tagged member to the Voice VLAN when VoIP
traffic is detected on the port.
Default Setting
Disabled
Command Mode
Interface Configuration
Command Usage
When auto is selected, you must select the method to use for detecting VoIP traffic,
either OUI or 802.1ab (LLDP) using the switchport voice vlan rule command
(page 4-270)
. When OUI is selected, be sure to configure the MAC address ranges
in the Telephony OUI list using the voice vlan mac-address command
(page 4-269).
Example
The following example sets port 1 to Voice VLAN auto mode.
switchport voice vlan rule
This command selects a method for detecting VoIP traffic on a port. Use the no form to
disable the detection method on the port.
Syntax
[no] switchport voice vlan rule {oui | lldp}
• oui - Traffic from VoIP devices is detected by the Organizationally Unique
Identifier (OUI) of the source MAC address.
• lldp - Uses LLDP to discover VoIP devices attached to the port.
Default Setting
OUI: Enabled
LLDP: Disabled
Console(config)#interface ethernet 1/1
Console(config-if)#switchport voice vlan auto
Console(config-if)#