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xStack DGS/DXS-3300 Series Layer 3 Stackable Gigabit Ethernet Switch User Manual
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 choosing 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 screen shown below.
The following values may be assigned to the QoS classes to set the scheduling.
Parameter
Max. Packets
Click Apply to implement changes made.
Figure 6- 48. QoS Output Scheduling Configuration window
Description
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.
NOTE: Entering a 0 for the Max Packets field in the QoS Output
Scheduling Configuration window above will create a Combination
Queue. For more information on implementation of this feature, see the
next section, Configuring the Combination Queue.
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