Voice VLAN Commands 4

Command Usage

VoIP devices attached to the switch can be identified by the manufacturer’s Organizational Unique Identifier (OUI) in the source MAC address of received packets. OUI numbers are assigned to manufacturers and form the first three octets of device MAC addresses. The MAC OUI numbers for VoIP equipment can be configured on the switch so that traffic from these devices is recognized as VoIP.

Selecting a mask of FF-FF-FF-00-00-00 identifies all devices with the same OUI (the first three octets). Other masks restrict the MAC address range. Selecting FF-FF-FF-FF-FF-FF specifies a single MAC address.

Example

The following example adds a MAC OUI to the OUI Telephony list.

Console(config)#voice vlan mac-address 00-12-34-56-78-90 mask ff-ff-ff-00-00-00 description A new phone Console(config)#

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). When OUI is selected, be sure to configure the MAC address ranges in the Telephony OUI list.

Example

The following example sets port 1 to Voice VLAN auto mode.

Console(config)#interface ethernet 1/1

Console(config-if)#switchport voice vlan auto

Console(config-if)#

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Accton Technology ES3528M-SFP manual Switchport voice vlan, Following example adds a MAC OUI to the OUI Telephony list