SH-E514TR1 10 Gigabit Ethernet SmartPro Switch User Manual
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Port Scheduler Method
This window is used to view and configure the port scheduler method settings.
Figure 11-2 Port Scheduler Method
The fields that can be configured are described below:
From Port / To Port:
Select the appropriate port range used for the configuration here.
Scheduler Method:
Select the scheduler method that will be applied to the specified port(s). Options to choose from
are Strict Priority (
SP
), and Weighted Round-Robin (
WRR
). By default, the output queue scheduling algorithm is
SP
.
SP -
To set a CoS queue in the
SP
mode, any higher priority CoS queue must also be in the strict priority
mode.
WRR - WRR
operates by transmitting permitted packets into the transmit queue in a round robin order. Initially,
each queue sets its weight to a configurable weighting. Every time a packet from a higher priority CoS queue
is sent, the corresponding weight is subtracted by 1 and the packet in the next lower CoS queue will be
serviced. When the weight of a CoS queue reaches zero, the queue will not be serviced until its weight is
replenished. When weights of all CoS queues reach 0, the weights get replenished at a time.
Click
Apply
to accept the changes made.
