ZyXEL Communications ZyXEL Dimension ES-2024 - Manual (Page 122)

Dimension ES-2024 Ethernet Switch
18-2 Queuing Method
Figure 18-1 Queuing Method
The following table describes the labels in this screen.
Table 18-1 Queuing Method
LABEL DESCRIPTION
Method Select First Come First Serve, Strictly Priority or Weighted Round Robin Scheduling.
First come first serve queuing treats all traffic with the same priority. The switch transmits the
traffic in the order it receives it. The high-priority queue does not get any priority over the low-
priority queue.
Strictly priority queuing services queues based on priority only. When the high-priority queue
empties, traffic on the low-priority queue begins.
Weighted round robin scheduling services queues based on the ratio determined by their queue
weights that you configure in the High Weight and Low Weight fields. Bandwidth is divided
between the high and low traffic queues according to their weights. A queue with a larger weight
gets more service than a queue with a smaller weight.
High Weight Configure this field when you select Weighted Round Robin Scheduling in the Method field.
Select a weight (1-7) for the high-priority queue traffic. This sets the ratio of how much high-
priority queue traffic the switch transmits in relation to the amount of low-priority queue traffic
(see the Low Weight field).
Low Weight Configure this field when you select Weighted Round Robin Scheduling in the Method field.
Select a weight (1-7) for the low-priority queue traffic. This sets the ratio of how much low-priority
queue traffic the switch transmits in relation to the amount of high-priority queue traffic (see the
High Weight field).
Apply Click Apply to save your changes back to the switch.
Cancel Click Cancel to begin configuring this screen afresh.
18.3 Weighted Round Robin Scheduling Example
This is an example of using Weighted Round Robin Scheduling as the queuing method. In this example the high-
priority traffic’s weight is set to 5 and the low-priority traffic’s weight is set to 3.