Switchport voice vlan – Microsens MS453490M Management Guide User Manual
Page 812
C
HAPTER
34
| VLAN Commands
Configuring Voice VLANs
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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.
◆
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.
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.
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Interface Configuration
C
OMMAND
U
SAGE
When auto is selected, you must select the method to use for detecting
VoIP traffic, either OUI or 802.1ab (LLDP) using the
command. When OUI is selected, be sure to configure the MAC
address ranges in the Telephony OUI list using the
command.