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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
2-18 Voice VLAN
A Voice VLAN is a VLAN configured specially for voice traffic. By adding ports with voice devices attached
to a voice VLAN, you can perform QoS-related configuration for voice data, ensuring the transmission
priority of voice traffic and voice quality.
2-18.1 Configuration
The Voice VLAN feature enables voice traffic forwarding on the Voice VLAN, then the switch can classify
and schedule network traffic. It is recommended that there be two VLANs on a port - one for voice, one for
data. Before connecting the IP device to the switch, the IP phone should configure the Voice VLAN ID
correctly via its own GUI.
To configure Voice VLAN in the web UI:
1. Navigate to Configuration > Voice VLAN > Configuration.
2. Select “Enabled” in the Voice VLAN Configuration.
3. Specify VLAN ID Aging Time Traffic Class.
2. Specify Port Mode, Security, and Discovery Protocol in the Port Configuration.
3. Click Apply.
Figure 2-18.1: Voice VLAN Configuration page
Parameter descriptions:
Mode:
Indicates the Voice VLAN mode operation.
Note
: You must disable the MSTP feature before you
enable Voice VLAN to avoid the conflict of ingress filtering. Otherwise, the Mode field is greyed out.
Possible modes are:
Enabled
:
Enable Voice VLAN mode operation.
Disabled
:
Disable Voice VLAN mode operation.