5 Configuration
D-Link Web Smart Switch User Manual
Note:
When there is a system power shortage
with the PD, the Switch will enforce the PoE port
priority management. The lower port numbers will
have priority over the higher port numbers. For
example, Port 1 > Port 2 > ... > Port 24.
QoS > 802.1p/DSCP Priority Settings
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. And for packets that are untagged, the switch will
assign the priority depending on your configuration.
Figure 64 – QoS > 802.1p Default Priority
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