Sunfire B1600 manual Setting the Service Weight for Traffic Classes

3.3.5.3Setting the Service Weight for Traffic Classes

This switch uses the Weighted Round Robin (WRR) algorithm to determine the frequency at which it services each priority queue. As described in “Mapping COS Values to Egress Queues” on page 3-80, the traffic classes are mapped to one of the four 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.

When setting the weight for traffic classes through the web interface or CLI, the following parameters can be configured:

■Traffic Class (Queue)14 – A list of weights for each traffic class.

■WRR Weights – The weight (between 1 and 255) for the selected traffic class.

Web Interace: Setting the Service Weight for Traffic Classes

1.Open Switch Config ⇒ Class of Service ⇒ Basic Traffic Prioritisation.

2.Scroll to Setting the Service Weights for Traffic Classes (Egress Queues).

3.Select a traffic class (output queue).

4.Type a value in the WRR Weights text field.

5.Click Save.

FIGURE 3-27The Switch Config ⇒ Class of Service Window for Setting Service Weights for Traffic Queues

14.CLI shows Queue ID.

3-84Sun Fire B1600 Blade System Chassis Switch Administration Guide • June 2003