D-Link DGS-3324SRi Intelligent Stackable Gigabit Ethernet Switch
56
ceiling is applied to receiving, transmitting, or both receiving and
transmitting packets.
no_limit
This drop-down menu allows you to specify that the selected port will have
no bandwidth limit.
Enabled
disables the limit.
Rate
This field allows you to enter the data rate, in mb/s, that will be the limit for
the selected port.
Results of the
Bandwidth Settings
will be displayed directly below, in the
Port Bandwidth Table
QoS Scheduling Mechanism Table
This drop-down menu allows you to select between a
Weight Fair
and a
Strict
mechanism for emptying the
priority queues. In the
Configuration
folder open the
QoS
folder and click
QoS Scheduling Mechanism
, to
view the screen shown below.
Figure 4- 27. Scheduling Mechanism Configuration window
The
Scheduling Mechanism
has the following parameters.
Parameter
Description
Strict
The highest queue is the first to process traffic. That is, the highest queue will
finish before other queues empty.
Weight fair
Use the weighted round-robin (
WRR
) algorithm to handle packets in an even
distribution in priority queues.
Click
Apply
to let your changes take effect.
QoS Output Scheduling
QoS can be customized by changing the output scheduling used for the hardware queues on the Switch. 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 you choose to customize this setting, it is important to monitor network performance,