System information

QoS Settings
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priority or select All High Priority to set all values to high priority. Use Custom if you
want to set each value individually.
Note:
End stations, such as PCs, are not usually VLAN aware and do not create
VLAN-tagged frames. As a result, this method of prioritization is not ideal when
there are a lot of PCs connected to the switch.
Figure 3-28 QoS Settings - 802.1p Mode Priority Mapping
DSCP Priority Mapping
Packets are prioritized using the DSCP (Differentiated Services Code Point)
value.The Differentiated Services Code Point (DSCP) is a six-bit field that is
contained within an IP (TCP or UDP) header. The six bits allow the DSCP field to
take any value in the range 0 - 63 inclusive. When QoS Mode is set to DSCP, the
DSCP Configuration table is displayed, which allows DSCP values to be mapped to
one of the four priority queues.
You can use the Prioritize Traffic drop-down list to quickly set the values in the DSCP
Configuration table. Select All Normal Priority to set all values to normal priority or
select All High Priority to set all values to high priority. Use Custom if you want to set
each value individually.