Configure the Voice-VLAN Working Mode on the Port

The voice-VLAN of a port can work in automatic mode or manual mode. The ports working in different voice-VLAN modes recognize voice packets in different ways.

• Automatic mode: If the packets received by the port are Untag packets or the Tag packet with the Voice-VLAN ID and the source MAC address of the packets matches an OUI address, the packets are regarded as voice packets.
• Manual mode: The packets received by the port are all regarded as voice packets.

Configuration Condition

Before configuring the voice-VLAN working mode of a port, ensure that:

• The voice-VLAN function has been globally enabled.
• The voice-VLAN function of the port has been enabled.

Configure a Voice-VLAN to Automatic Mode

Table 7-5 Configuring a Voice-VLAN to Automatic Mode

Configure a Voice-VLAN to Manual Mode

Table 7-6 Configuring a Voice-VLAN to Manual Mode

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  If the port is used to transmit the Tagged voice data, the port type can only be configured as Trunk or Hybrid, and PVID cannot be Voice-VLAN.
• If the port works in the Voice-VLAN manual mode, and is used to transmit the untagged voice data, PVID should be Voice-VLAN.
• The lldp-med authentication mode of Voice-VLAN does not support the manual mode of ports, that is, when the devices enable the lldp-med authentication mode of Voice-VLAN, the ports cannot be configured as the manual mode of Voice-VLAN; or when there is one port configured as the manual mode of Voice-VLAN, the lldp-med authentication mode of Voice-VLAN cannot be enabled.

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