DGS-3024 Gigabit Ethernet Switch Manual
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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.
RoundRobin Use the weighted round-robin (WRR) algorithm to handle packets in an even
distribution in priority classes of service.
Click Apply to make your changes take effect.
NOTE: The settings you assign to the queues, numbers 0-7, represent the
IEEE 802.1p priority tag number. Do not confuse these settings with port
numbers.

QoS Output Scheduling

QoS can be customized by changing the output scheduling used for the hardware classes of service in the Switch. As with
any changes to QoS implementation, careful consideration should be given to how network traffic in lower priority classes
of service is affected. Changes in scheduling may result in unacceptable levels of packet loss or significant transmission
delay. 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. In the Configuration folder open the QoS
folder and click QoS Output Scheduling, to view the window shown below:
Figure 7- 43. QoS Output Scheduling window
You may assign the following values to the QoS classes to set the scheduling.
Parameter Description
Max. Packets Specifies the maximum number of packets the above specified hardware priority
class of service will be allowed to transmit before allowing the next lowest priority
queue to transmit its packets. A value between 0 and 15 can be specified.
Click Apply to implement changes made.
MAC Notification
MAC Notification is used to monitor MAC addresses learned and entered into the forwarding database.

MAC Notification Global Settings

To globally set MAC notification on the Switch, open the following window by opening the MAC Notification folder and
clicking the MAC Notification Global Settings link: