3Com 4200G, 5500G, 4210 manual Traffic, # Enable voice Vlan on Ethernet 1/0/2

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