8-3Voice VLAN assignmentmodeVoice traffictype Port link typeAccess: not supportedTrunk: supported if the default VLAN of theconnecting port exists and is not the voice VLAN andthe connecting port belongs to the default VLANTagged voicetraffic Hybrid: supported if the default VLAN of theconnecting port exists and is not the voice VLAN, thetraffice of the default VLAN is permitted to passthrough the port, and the traffic of the Voice VLAN ispermitted to pass through the connecting port taggedAccess: supported if the default VLAN of theconnecting port is the voice VLANTrunk: supported if the default VLAN of theconnecting port is the voice VLAN and that the voiceVLAN is permitted to pass through the connectingportManual modeUntaggedvoice trafficHybrid port: supported if the default VLAN of theconnecting port is the voice VLAN and is permitted topass through the connecting port untaggedIf an IP phone sends tagged voice traffic and its connecting port is configured with 802.1Xauthentication and Guest VLAN, you should assign different VLAN IDs for the voice VLAN, the defaultVLAN of the connecting port, and the 802.1X Guest VLAN.z The default VLANs for all ports are VLAN 1. You can configure the default VLAN of a port andconfigure a port to permit a certain VLAN to pass through with commands. For more information,refer to Port-Based VLAN Configuration.z Use the display interface command to display the default VLAN of a port and the VLANspermitted to pass through the port.Security Mode and Normal Mode of Voice VLANsVoice VLAN-enabled ports can operate in security mode or normal mode based on their inboundpacket filtering mechanisms.In a safe network, you can configure the voice VLANs to operate in normal mode, thus reducing theconsumption of system resources due to source MAC addresses checking. It is recommended not totransmit both voice packets and non-voice packets in a voice VLAN. If you have to, please ensure thatthe voice VLAN security mode is disabled.
