1-13Voice VLAN Configuration Example (Manual Voice VLAN Assignment Mode)Network requirementsCreate a voice VLAN and configure it to operate in manual voice VLAN assignment mode. Add the portto which an IP phone is connected to the voice VLAN to enable voice traffic to be transmitted within thevoice VLAN.z Create VLAN 2 and configure it as a voice VLAN. Set the voice VLAN to operate in security modez The IP phone sends untagged packets. It is connected to Ethernet 1/0/1, a hybrid port. Set this portto operate in manual voice VLAN assignment mode.z You need to add a user-defined OUI address 0011-2200-000, with the mask being ffff-ff00-0000and the description string being “test”.z Set the CoS precedence to 5 and DSCP precedence to 40 for the received voice traffic.Network diagramFigure 1-3 Network diagram for voice VLAN configuration (manual voice VLAN assignment mode)InternetDevice AEth1/0/1VLAN2VLAN2010-1001OUI:0011-2200-0000Mask:ffff-ff00-0000Device BConfiguration procedure# Enable the security mode for the voice VLAN so that the ports in the voice VLAN permit valid voicepackets only. This operation is optional. The security mode is enabled by default. system-view[DeviceA] voice vlan security enable# Add a user-defined OUI address 0011-2200-000 and set the description string to “test”.[DeviceA] voice vlan mac-address 0011-2200-0000 mask ffff-ff00-0000 description test# Create VLAN 2 and configure it as a voice VLAN.[DeviceA] vlan 2[DeviceA-vlan2] quit[DeviceA] voice vlan 2 enable# Configure Ethernet 1/0/1 to operate in manual voice VLAN assignment mode.[DeviceA] interface Ethernet 1/0/1[DeviceA-Ethernet1/0/1] undo voice vlan mode auto# Configure Ethernet 1/0/1 as a hybrid port.[DeviceA-Ethernet1/0/1] port link-type hybrid