User`s manual

6.4.8 QoS
This switch supports Port-based priority, 802.1P priority, and DSCP priority.
These priority operations could be enable/disable on each port.
For 802.1P and DSCP priority operations, their priority values can be mapped to
four priority queues of the switch for QoS operation.
1). QoS Information
QoS : this is for QoS function enable/disable.
Port Priority : this is used to define the priority setting of each port. It will map to
the four priority queues of the switch.
802.1P Enable : this is for 802.1P priority operation enable/diable on each port.
802.1P priority operation will use the priority setting in tag of packets for QoS
operation.
The mapping of 802.1P priority values (0~7) to priority queue could be defined at
“VLAN Tag Priority” page by clicking [Configure VLAN Tag Priority] button.
DSCP Enable : (see the following picture) this is for DSCP(Differential Service
Code Point) priority operation enable/disable on each port. DSCP priority
operation will use the priority setting in ToS field of IP packets for QoS operation.
Seven DSCP values (0~63) could be defined and map to priority queue at “IP
Differential Service (DiffServ) Configuration” page by clicking [Configure DSCP
Priority] button.
[Configure VLAN Tag Priority] button : Click this button can go to the “VLAN
Tag Priority” page for 802.1P priority values (0~7) to priority queue mapping
setting.
[Configure DSCP Priority] button : Click this button can go to the “IP Differential
Service (DiffServ) Configuration” page for DSCP priority values (0~63) to priority
queue mapping setting.
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