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Chapter 36: VLAN Commands
Configuring Voice VLANs
switchport voice
vlan rule
no switchport voice vlan priority
priority-value - The CoS priority value. (Range: 0-6)
D
S
EFAULT
ETTING
6
C
M
OMMAND
ODE
Interface Configuration
C
U
OMMAND
SAGE
Specifies a CoS priority to apply to the port VoIP traffic on the Voice VLAN.
The priority of any received VoIP packet is overwritten with the new
priority when the Voice VLAN feature is active for the port.
E
XAMPLE
The following example sets the CoS priority to 5 on port 1.
Console(config)#interface ethernet 1/1
Console(config-if)#switchport voice vlan priority 5
Console(config-if)#
This command selects a method for detecting VoIP traffic on a port. Use
the no form to disable the detection method on the port.
S
YNTAX
[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.
D
S
EFAULT
ETTING
OUI: Enabled
LLDP: Disabled
C
M
OMMAND
ODE
Interface Configuration
C
U
OMMAND
SAGE
When OUI is selected, be sure to configure the MAC address ranges in
•
the Telephony OUI list (see the
address OUI numbers must be configured in the Telephony OUI list so
that the switch recognizes the traffic as being from a VoIP device.
LLDP checks that the "telephone bit" in the system capability TLV is
•
turned on. See
"LLDP Commands" on page 1245
on LLDP.
– 1118 –
voice vlan mac-address
for more information
command. MAC
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