Voice Vlan; Introduction To Voice Vlan - Planet IGS-4215-16T2S User Manual

4.12.6 Voice VLAN

4.12.6.1 Introduction to Voice VLAN

Configure the switch port rate limit for the switch port on this page.
Voice VLAN is specially configured for the user voice data traffic. By setting a Voice VLAN and adding the ports of the
connected voice equipments to Voice VLAN, the user will be able to configure QoS (Quality of service) service for voice data,
and improve voice data traffic transmission priority to ensure the calling quality.
The switch can judge if the data traffic is the voice data traffic from specified equipment according to the source MAC address
field of the data packet entering the port. The packet with the source MAC address complying with the system defined voice
equipment OUI (Organizationally Unique Identifier) will be considered the voice data traffic and transmitted to the Voice
VLAN.
The configuration is based on MAC address, acquiring a mechanism in which every voice equipment transmitting information
through the network has got its unique MAC address. VLAN will trace the address belongs to specified MAC. By This means,
VLAN allows the voice equipment always belong to Voice VLAN when relocated physically. The greatest advantage of the
VLAN is the equipment can be automatically placed into Voice VLAN according to its voice traffic which will be transmitted at
specified priority. Meanwhile, when voice equipment is physically relocated, it still belongs to the Voice VLAN without any further
configuration modification, which is because it is based on voice equipment other than switch port.
The Voice VLAN feature enables the voice traffic to forward on the Voice VLAN, and then the
switch can be classified and scheduled to network traffic. It is recommended there are two
VLANs on a port -- one for voice and one for data.
Before connecting the IP device to the switch, the IP phone should configure the voice VLAN
ID correctly. It should be configured through its own GUI.
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