Dell PowerConnect 2708 User's Guide - Page 72

Mapping CoS Values to Queues, Strict Priority, CoS Settings, Trust Mode, Apply Changes, Cos to Queue

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NOTE: The interface Trust settings overrides the global Trust setting. Strict Priority - Specifies if traffic scheduling is based strictly on the queue priority. This is the default value for queues. WRR - Specifies if traffic scheduling is based on the Weighted Round Robin (WRR) weights to assigned egress queues. Configuring the Trust Mode: 1 Open the CoS Settings page. 2 Define the Trust Mode field. 3 Click Apply Changes. Trust Mode is enabled on the Ethernet switch. Mapping CoS Values to Queues The Cos to Queue page contains fields for classifying CoS settings to traffic queues. To open the page, click CoS to Queue in the tree view. Figure 7-2. CoS to Queue Class of Service - Specifies the CoS priority tag values, where zero is the lowest and 7 is the highest. Queue - The queue to which the CoS priority is mapped. Four traffic priority queues are supported. Restore Defaults - Restores the Ethernet Switch factory defaults for mapping CoS values to an egress queue. 72

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72
NOTE:
The interface Trust settings overrides the global Trust setting.
Strict Priority
— Specifies if traffic scheduling is based strictly on the queue priority. This is the
default value for queues.
WRR
— Specifies if traffic scheduling is based on the Weighted Round Robin (WRR) weights to
assigned egress queues.
Configuring the Trust Mode:
1
Open the
CoS Settings
page
.
2
Define the
Trust Mode
field.
3
Click
Apply Changes
.
Trust Mode is enabled on the Ethernet switch.
Mapping CoS Values to Queues
The
Cos to Queue
page contains fields for classifying CoS settings to traffic queues. To open the
page, click
CoS to Queue
in the tree view.
Figure 7-2.
CoS to Queue
Class of Service
— Specifies the CoS priority tag values, where zero is the lowest and 7 is the
highest.
Queue
— The queue to which the CoS priority is mapped. Four traffic priority queues are
supported.
Restore Defaults
— Restores the Ethernet Switch factory defaults for mapping CoS values to an
egress queue.