Installation manual

3-227
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Note: This switch does not allow the queue service weights to be set. The weights are fixed as
1, 2, 4, 8, for queues 0 through 3 respectively.
Command Attributes
• WRR Setting Table
19
– Displays a list of weights for each traffic class (i.e., queue).
• Weight Value – Set a new weight for the selected traffic class. (Range: 1-15)
Web – Click Priority, Queue Scheduling.
Figure 3-127 Configuring Queue Scheduling
CLI – The following example shows how to display the WRR weights assigned to each of
the priority queues.
Layer 3/4 Priority Settings
Mapping Layer 3/4 Priorities to CoS Values
This switch supports one method of prioritizing layer 3/4 traffic to meet application
requirements. Traffic priorities can be specified in the IP header of a frame, using the
priority bits in the Type of Service (TOS) octet or the number of the TCP port. If the priority
bits are used, the TOS octet may contain six bits for Differentiated Services Code Point
(DSCP) service. When these service is enabled, the priorities are mapped to a Class of
Service value by the switch, and the traffic then sent to the corresponding output queue.
Because different priority information may be contained in the traffic, this switch maps
priority values to the output queues in the following manner – The precedence for priority
mapping is IP DSCP Priority and then Default Port Priority.
19. CLI shows Queue ID.
Console#show queue bandwidth 4-299
Queue ID Weight
-------- ------
0 1
1 2
2 4
3 8
Console