User Manual

D-Link EasySmart Switch User Manual
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Figure 58– L2 Features > Surveillance VLAN Settings > Component type
VLAN > Voice VLAN
Voice VLAN is a feature that allows you to automatically place the voice traffic from D-Link IP phones to an
assigned VLAN to enhance the IP voice service. With a higher priority and individual VLAN, the quality
and the security of voice traffic are guaranteed. The Voice VLAN function will check the source MAC
address / VLAN ID on the incoming packets. If it matches specified MAC address / VLAN ID, the packets will
pass through switch with desired priority.
Figure 59 – L2 Features > Voice VLAN Settings
QoS > 802.1p Default Priority
QoS is an implementation of the IEEE 802.1p standard that allows network administrators to reserve
bandwidth for important functions that require a larger bandwidth or that might have a higher priority, such as
VoIP (voice-over Internet Protocol), web browsing applications, file server applications or video conferencing.
Thus with larger bandwidth, less critical traffic is limited, and therefore excessive bandwidth can be saved.
The following figure displays the status of Quality of Service priority levels of each port, higher priority means
the traffic from this port will be first handled by the switch. For packets that are untagged, the switch will
assign the priority depending on your configuration.