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Switchport voice vlan – LevelOne GTL-2691 User Manual

Page 1150

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HAPTER

39

| VLAN Commands

Configuring Voice VLANs

– 1150 –

description - User-defined text that identifies the VoIP devices.

(Range: 1-32 characters)

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EFAULT

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ETTING

None

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OMMAND

M

ODE

Global Configuration

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OMMAND

U

SAGE

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.

Setting 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. Setting a mask of FF-FF-FF-FF-FF-FF specifies a single MAC

address.

E

XAMPLE

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.

S

YNTAX

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.

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EFAULT

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ETTING

Disabled

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OMMAND

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ODE

Interface Configuration