Qos Scheduling Mechanism - D-Link xStack DGS-3420 Series Reference Manual

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch Web UI Reference Guide
Class ID
Scheduling Mechanism
Click the Apply button to accept the changes made.

QoS Scheduling Mechanism

Changing the output scheduling used for the hardware queues in the Switch can customize QoS. As with any changes
to QoS implementation, careful consideration should be given to how network traffic in lower priority queues are
affected. Changes in scheduling may result in unacceptable levels of packet loss or significant transmission delays. If
you choose to customize this setting, it is important to monitor network performance, especially during peak demand,
as bottlenecks can quickly develop if the QoS settings are not suitable.
To view this window, click QoS > Scheduling Settings > QoS Scheduling Mechanism as shown below:
The following parameters can be configured:
Parameter
Unit
From Port / To Port
Scheduling Mechanism
Click the Apply button to accept the changes made.
Select the Class ID, from 0-7 to configure for the QoS parameters.
Strict – The highest class of service is the first to process traffic. That is, the highest
class of service will finish before other queues empty.
Weight – Use the weighted round-robin (WRR) algorithm to handle packets in an even
distribution in priority classes of service.
Figure 6-12 QoS Scheduling Mechanism
Description
Select the unit you wish to configure.
Enter the port or port list you wish to configure.
Strict – The highest class of service is the first to process traffic. That is, the highest
class of service will finish before other queues empty.
Weighted Round Robin – Use the weighted round-robin algorithm to handle packets in
an even distribution in priority classes of service.
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