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Configuring Voice VLAN 31
phone traffic arrives at Ethernet 1/0/1, the port automatically permits the voice
VLAN and transmits the voice traffic with the voice VLAN tag, so that the IP
phone can receive packets normally.
■ You can set Ethernet 1/0/1 as a hybrid or trunk port following the same
procedure. In either case, you need to set the service VLAN as the default
VLAN. As for voice traffic, when IP phone traffic arrives at the port, the port
automatically permits the voice VLAN and transmits the traffic with the voice
VLAN tag.
# Set the voice VLAN operation mode of Ethernet 1/0/2 to manual. The operation
mode must be manual because IP phone 2 can only send out untagged voice
traffic.
[SwitchA-Ethernet1/0/1] quit
[SwitchA] interface Ethernet 1/0/2
[SwitchA-Ethernet1/0/2] undo voice vlan mode auto
# Configure Ethernet 1/0/2 to be an access port and permit the voice VLAN.
[SwitchA-Ethernet1/0/2] port access vlan 2
# Enable voice VLAN on Ethernet 1/0/2.
[SwitchA-Ethernet1/0/2] voice vlan enable
n
■ You can set Ethernet 1/0/2 as a trunk or hybrid port. In either case, configure
the voice VLAN as the default VLAN and configure the port to remove the
VLAN tag when forwarding traffic with the voice VLAN tag.
■ If traffic from IP phone 2 is tagged, configure Ethernet 1/0/2 as a trunk or
hybrid port where the default VLAN cannot be set to VLAN 20 and the packets
of VLAN 20 must be sent with the VLAN tag.
Complete Configuration
#
vlan 1 to 2
#
vlan 6
#
interface Ethernet1/0/1
port link-type trunk
port trunk permit vlan 1 6
port trunk pvid vlan 6
voice vlan enable
#
interface Ethernet1/0/2
port access vlan 2
undo voice vlan mode auto
voice vlan enable
#
voice vlan aging 100
voice vlan mac-address 000f-2200-0000 mask ffff-ff00-0000 descripti
on IP Phone2
voice vlan 2 enable