D-Link DES-3528 - xStack Switch - Stackable User Manual - 802.1P User Priority
xStack DES-3528 Series Layer 2 Stackable Fast Ethernet Managed Switch User Manual
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802.1p User Priority
The Switch allows the assignment of a user priority to each of the 802.1p priorities.
To view this window click QoS > 802.1p User Priority.
Figure 8- 6. 802.1p User Priority window
Once you have assigned a priority to the port groups on the Switch, you can then assign this Class to each of the 7
levels of 802.1p priorities. Click Apply to set your changes.
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 > QoS Scheduling Mechanism
Figure 8- 7. QoS Scheduling Mechanism
The Scheduling Mechanism has the following parameters.
Parameter Description
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.