3 Configuring the Switch

Values to Egress Queues” on page 3-192,the traffic classes are mapped to one of the eight egress queues provided for each port. You can assign a weight to each of these queues (and thereby to the corresponding traffic priorities). This weight sets the frequency at which each queue will be polled for service, and subsequently affects the response time for software applications assigned a specific priority value.

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

Interface – Select port or trunk as an interface.

WRR Setting Table14 – 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. Select the required interface, highlight a traffic class (i.e., output queue), enter a weight, then click Apply.

Figure 3-121 Configuring Queue Scheduling

CLI – The following example shows how to display the WRR weights assigned to each of the priority queues.

Console#show queue bandwidth

4-268

Queue ID

Weight

 

--------

------

 

0

1

 

1

2

 

2

4

 

3

8

 

Console

 

 

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 number of the TCP port. When these service is enabled, the priorities are mapped to

14. CLI shows Queue ID.

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Accton Technology ES3528M-SFP manual Layer 3/4 Priority Settings, Mapping Layer 3/4 Priorities to CoS Values