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QoS Settings
The QoS Global Settings page contains fields for enabling or disabling QoS. In addition, the Trust mode can be selected.
The Trust mode relies on predefined fields within the packet to determine the output queue.
To open QoS Settings screen perform the folling:
1.
Click Quality of Service -> QoS Global Parameters -> QoS Settings
2.
The QoS Settings screen is displayed as in Figure 3-87
The page includes the following fields:
• Quality of Service -- Enables or disables managing network traffic using Quality of Service.
• Trust Mode -- Determines which packet fields to use for classifying packets entering the device. When no rules
are defined the traffic containing the predefined packet field (CoS or DSCP) is mapped according to the
relevant trust modes table. Traffic not containing a predefined packet field is mapped to best effort. The
possible Trust Mode field values are:
• CoS -- The output queue assignment is determined by the IEEE802.1p VLAN priority tag (VPT) or by the default
VPT assigned to a port.
• DSCP -- The output queue assignment is determined by the DSCP field.
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The interface Trust settings overrides the global Trust setting.
Note
:
Queue Settings
The Global Queue Setting page contains fields for configuring the scheduling method by which the queues are
maintained.
To open Queue Settings screen perform the folling:
1.
Click Quality of Service -> QoS Global Parameters -> Queue Settings
2.
The Queue Settings screen is displayed as in Figure 3-88
Figure 3-87 QoS Global Settings screen
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