ZyXEL Communications 1 - Manual (Page 102)

NetAtlas Enterprise 1.00 User’s Guide
101 Chapter 11 Switch Configuration
11.3.2 Weighted Fair Scheduling
Weighted Fair Scheduling is used to guarantee each queue’s minimum bandwidth based on
their bandwidth weight (portion) when there is traffic congestion. WFS is activated only when
a port has more traffic than it can handle. Queues with larger weights get more guaranteed
bandwidth than queues with smaller weights. This queuing mechanism is highly efficient in
that it divides any available bandwidth across the different traffic queues. By default, the
weight for Q0 is 1, for Q1 is 2, for Q2 is 3, and so on. Guaranteed bandwidth is calculated as
follows:
Queue Weight x Port Speed
Total Queue Weight
For example, using the default setting, Q0 on Port 1 gets a guaranteed bandwidth of:
1 x 100 Mbps = 3 Mbps
1+2+3+4+5+6+7+8
11.3.3 Configuring Priority Queue
Follow the steps below to configure priority queuing.
1 In the Device Panel list, select a device and then right-click.
2 Click Configuration, Switch Configuration and then the Switch Setup tab.
3 Select a Queuing Method from the drop-down list box and then click Apply.
4 Click the Priority Queue tab to display the following screen.
Figure 75 Configuration: Switch Configuration: Priority Queue