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(a-z or A-Z) or integers (0-9).
◆
VLAN ID
– VLAN to which matching protocol traffic is forwarded.
(Range: 1-4095)
◆
Port Members
– Ports assigned to this protocol VLAN.
WEB INTERFACE
To map a protocol group to a VLAN for a port or trunk:
1. Click Configuration, VCL, Protocol-based VLANs, Group to VLAN.
2. Enter the identifier for a protocol group.
3. Enter the corresponding VLAN to which the protocol traffic will be forwarded.
4. Select the ports which will be assigned to this protocol VLAN.
5. Click Save.
4.17. Voice VLAN
When IP telephony is deployed in an enterprise network, it is recommended to isolate the
Voice over IP (VoIP) network traffic from other data traffic. Traffic isolation can provide higher
voice quality by preventing excessive packet delays, packet loss, and jitter. This is best
achieved by assigning all VoIP traffic to a single Voice VLAN.
The use of a Voice VLAN has several advantages. It provides security by isolating the VoIP
traffic from other data traffic. End-to-end QoS policies and high priority can be applied to
VoIP VLAN traffic across the network, guaranteeing the bandwidth it needs. VLAN isolation
also protects against disruptive broadcast and multicast traffic that can seriously affect voice
quality.
The switch allows you to specify a Voice VLAN for the network and set a service priority for
the VoIP traffic. VoIP traffic can be detected on switch ports by using the source MAC
address of packets, or by using LLDP (IEEE 802.1ab) to discover connected VoIP devices.
When VoIP traffic is detected on a configured port, the switch automatically assigns the port
as a tagged member the Voice VLAN. Alternatively, switch ports can be manually configured.
Configuring VoIP Traffic
Use the Voice VLAN Configuration page to configure the switch for VoIP traffic. First enable
automatic detection of VoIP devices attached to the switch ports, then set the Voice VLAN ID
for the network. The Voice VLAN aging time can also be set to remove a port from the Voice
VLAN when VoIP traffic is no longer received on the port.
Содержание GEP-1070
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