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DGS-1520 Series Gigabit Ethernet Smart Managed Switch Web UI Reference Guide
147
Voice VLAN Port
This window is used to display and configure the voice VLAN interface settings.
To view the following window, click L2 Features > VLAN > Voice VLAN > Voice VLAN Port, as shown below:
Figure 5-41 Voice VLAN Port Window
The fields that can be configured are described below:
Parameter Description
Unit
Select the Switch unit that will be used for this configuration here.
From Port - To Port
Select the range of ports that will be used for this configuration here.
State
Select to enable or disable the voice VLAN feature on the specified port(s) here.
When the voice VLAN is enabled for a port, the received voice packets will be
forwarded in the voice VLAN. The received packets are determined as voice
packets if the source MAC addresses of packets comply with the OUI addresses.
Mode
Select the mode here. Options to choose from are:
• Auto Untagged - Specifies that voice VLAN untagged membership will be
automatically learned.
• Auto Tagged - Specifies that voice VLAN tagged membership will be
automatically learned.
• Manual - Specifies that voice VLAN membership will be manually
configured.
If auto-learning is enabled, the port will automatically be learned as a voice VLAN
member. This membership will automatically be aged out. When the port is
working in the auto-tagged mode and the port captures a voice device through the
device's OUI, it will join the voice VLAN as a tagged member automatically. When
the voice device sends tagged packets, the Switch will change its priority. When
the voice device sends untagged packets, it will forward them in the Port VLAN ID
(PVID).
When the port is working in auto-untagged mode, and the port captures a voice
device through the device's OUI, it will join the voice VLAN as an untagged
member automatically. When the voice device sends tagged packets, the Switch
will change its priority. When the voice device sends untagged packets, it will
forward them in the 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.
Click the Apply button to accept the changes made.
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