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# Since GigabitEthernet 1/0/1 might receive both voice traffic and data traffic at the same time, to
ensure the quality of voice packets and effective bandwidth use, configure voice VLANs to operate in
security mode. Configure the voice VLANs to transmit only voice packets. By default, voice VLANs
operate in security mode. (Optional)
[DeviceA] voice vlan security enable
# Configure the allowed OUI addresses as MAC addresses prefixed by 0011-1100 -0000 or
0011-2200-0000. In this way, Device A identifies packets whose MAC addresses match any of the
configured OUI addresses as voice packets.
[DeviceA] voice vlan mac-address 0011-1100-0001 mask ffff-ff00-0000 description IP phone
A
[DeviceA] voice vlan mac-address 0011-2200-0001 mask ffff-ff00-0000 description IP phone
B
# Configure GigabitEthernet 1/0/1 as a hybrid port.
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] port link-type hybrid
# Configure GigabitEthernet 1/0/1 to operate in automatic voice VLAN assignment mode. By default,
a port operates in automatic voice VLAN assignment mode. (Optional)
[DeviceA-GigabitEthernet1/0/1] voice vlan mode auto
# Configure VLAN 2 as the voice VLAN for GigabitEthernet 1/0/1.
[DeviceA-GigabitEthernet1/0/1] voice vlan 2 enable
[DeviceA-GigabitEthernet1/0/1] quit
# Configure GigabitEthernet 1/0/2.
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] port link-type hybrid
[DeviceA-GigabitEthernet1/0/2] voice vlan mode auto
[DeviceA-GigabitEthernet1/0/2] voice vlan 3 enable
Verifying the configurations
# Display the OUI addresses, OUI address masks, and description strings.
<DeviceA> display voice vlan oui
Oui Address Mask Description
0001-e300-0000 ffff-ff00-0000 Siemens phone
0003-6b00-0000 ffff-ff00-0000 Cisco phone
0004-0d00-0000 ffff-ff00-0000 Avaya phone
0011-1100-0000 ffff-ff00-0000 IP phone A
0011-2200-0000 ffff-ff00-0000 IP phone B
0060-b900-0000 ffff-ff00-0000 Philips/NEC phone
00d0-1e00-0000 ffff-ff00-0000 Pingtel phone
00e0-7500-0000 ffff-ff00-0000 Polycom phone
00e0-bb00-0000 ffff-ff00-0000 3com phone
# Display the states of voice VLANs.
<DeviceA> display voice vlan state
Maximum of Voice VLANs: 8
Current Voice VLANs: 2
Voice VLAN security mode: Security
Voice VLAN aging time: 30 minutes
Voice VLAN enabled port and its mode:
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