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This field allows the input of the data rate that will be the limit for the selected port. The user may
Rate (64-
10000000)
choose a rate between 64 and 10000000 units, where each unit is defined a 1Kbit/s.
Effective Rx
Specifies the limitation of the received data rate.
rate
Effective Tx
Specifies the limitation of the transmitted data rate.
rate
Click Apply to set the bandwidth control for the selected ports. Results of configured Bandwidth Settings will be displayed in the
Port Bandwidth Table.
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 is affected. Changes in
scheduling may result in unacceptable levels of packet loss or significant transmission delay. If the user chooses 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 the following window click, QoS > QoS Scheduling Mechanism, as shown below:
The Scheduling Mechanism has the following parameters.
Parameter
Description
The highest class of service is the first to process traffic. That is, the highest class of service will
Strict
finish before other queues empty.
Weight fair
Use the weighted round-robin (WRR) algorithm to handle packets in an even distribution in
priority classes of service.
Click Apply to allow changes to take effect.
®
xStack
DGS-3426G Layer 2 Gigabit Ethernet Managed Switch
Figure 4 - 3 QoS Scheduling Mechanism window
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