D-Link DGS-3700-12 - Qos Scheduling Mechanism

DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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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:
Figure 6- 12 QoS Scheduling Mechanism window
The following parameters can be configured.
Parameter Description
From Port /To Port
Enter the port or port list you wish to configure.
Scheduling
Mechanism
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 (WRR) algorithm to handle packets
in an even distribution in priority classes of service. For weighted round-robin queuing, the
number of packets sent from each priority queue depends upon the assigned weight.
Click Apply to implement changes made.
Management Packet Priority Settings
This window allows users to set the Management Packet Priority.
To view this window, click QoS > Management Packet Priority Settings, as shown below:
Figure 6- 13 Management Packet Priority Settings window
The following parameters can be configured.