SGS-6341-Series User Manual

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20.7.4 GVRP Troubleshooting
The GARP counter setting for Trunk ports in both ends of Trunk link must be the same,
otherwise, GVRP will not work normally. It is recommended to avoid enabling GVRP and
RSTP at the same time in switch. If GVRP needs to be enabled, RSTP function for the ports
must be disabled first.
20.8 Voice VLAN Configuration
20.8.1 Introduction to Voice VLAN
Voice VLAN is specially configured for the user voice data traffic. By setting a Voice VLAN and
adding the ports of the connected voice equipment to the Voice VLAN, the user will be able to
configure QoS (Quality of service) service for voice data, and improve the 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 that belongs to specified MAC. By this means, VLAN allows the
voice equipment to always belong to Voice VLAN when relocated physically. The greatest
advantage of the VLAN is the equipment that 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.
Note: Voice VLAN needs to associate with Hybrid attribute of the ports to work, so the ports
that may be added to Voice VLAN must be configured as Hybrid port.
User’s Manual of SGS-6341 series