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376 Configuring Quality of Service
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The
Global Settings
page contains the following sections:
• QoS Settings
• Queue Settings
QoS Settings
Quality of Service
— Enables or disables managing network traffic using Quality of Service.
Trust Mode
— Determines which packet fields are used to classify packets entering the device.
When no rules are defined, the traffic containing the predefined CoS or DSCP packet field is
mapped according to the selected trust mode. Traffic not containing a predefined packet field is
mapped to the best effort queue (q2). The possible Trust Mode field values are:
CoS
(802.1p) — The egress queue assignment is determined by the IEEE802.1p VLAN
priority tag (VPT) or by the default VPT assigned to a port. The device default is the
IEEE802.1p.
DSCP
— The egress queue assignment is determined by the DSCP field.
NOTE: The interface Trust settings overrides the global Trust setting.
Queue Settings
Strict Priority
— Indicates the system queues are SP queues, when selected.
WRR
— Indicates the system queues are WRR queues, when selected.
Enabling Quality of Service:
1
Open the
Global Settings
page
.
2
Select
Enable
in the
Quality of Service
field.
3
Click
Apply Changes
.
Class of Service is enabled on the device.
Enabling the Trust Mode:
1
Open the
Global Settings
page
.
2
Define the
Trust Mode
field.
3
Click
Apply Changes
.
Trust mode is enabled on the device.