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User’s Manual of SGSD-1022 / SGSD-1022P
SGSW-2840 / SGSW-2840P
231
4.10.1.4 Queue Scheduling
The Managed Switch uses the Weighted Round Robin (WRR) algorithm to determine the frequency at which it services each
egress queue. 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.
Command Usage
• WRR controls bandwidth sharing at the egress port by defining scheduling weights for allocated service priorities. When
using WRR, assign a weight of 1-15 to each of the hardware queues.
• A queue’s weight must be less than or equal to the weight of the next higher priority queue (that is, Q0 ≤Q1 ≤Q2 ≤ Q3).
1. Click Priority, Queue Scheduling.
2. Select and highlight a Traffic Class (i.e., output queue), enter a Weight Value, then click Apply.
Figure 4-10-4 Queue Scheduling page screenshot
The page includes the following fields:
Object Description
WRR Setting Table
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)