DIS-200G Series Gigabit Ethernet Switch CLI Reference Guide
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packets, the switch will change its priority. When the voice device sends untagged packets, it will forward them
in voice VLAN.
When the switch receives LLDP-MED packets, it checks the VLAN ID, tagged flag, and priority flag. The switch
should follow the tagged flag and priority setting.
If auto learning is disabled, the user should use the switchport hybrid vlan command to configure the port as a
voice VLAN tagged or untagged member port.
Example
This example shows how to configure physical port eth1/0/1 to be in the auto tag mode.
Switch# configure terminal
Switch(config)# interface Ethernet 1/0/1
Switch(config-if)# voice vlan mode auto tag
Switch(config-if)#
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voice vlan qos
This command is used to configure the CoS priority for the incoming voice VLAN traffic. Use the
no
form of this
command to revert to the default setting.
voice vlan qos
COS-VALUE
no voice vlan qos
Parameters
COS-VALUE
Specifies the priority of the voice VLAN. This value must be
between 0 and 7.
Default
By default, this value is 5.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 15.
Usage Guideline
The voice packets arriving at the voice VLAN enabled port are marked to the CoS specified by the command.
The remarking of CoS allows the voice VLAN traffic to be distinguished from data traffic in quality of service.
Example
This example shows how to configure the priority of the voice VLAN to be 7.
Switch# configure terminal
Switch(config)# voice vlan qos 7
Switch(config)#