Chapter 19
| VLAN Commands
Configuring Voice VLANs
– 501 –
Command Usage
â—† 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. When OUI is selected, be sure to configure the MAC address ranges
in the Telephony OUI list using the voice vlan mac-address command.
â—† All ports are set to VLAN access mode by default. Prior to enabling VoIP for a
port (by setting the VoIP mode to Auto or Manual as described below), ensure
that VLAN membership is not set to access mode using the switchport mode
command.
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)#
switchport
voice vlan priority
This command specifies a CoS priority for VoIP traffic on a port. Use the no form to
restore the default priority on a port.
Syntax
switchport voice vlan priority priority-value
no switchport voice vlan priority
priority-value - The CoS priority value. (Range: 0-6)
Default Setting
6
Command Mode
Interface Configuration
Command Usage
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.
Example
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)#
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