Adding A Qos Queue; The Class Setup Screen - ZyXEL Communications VMG4380-B10A User Manual

Chapter 10 Quality of Service (QoS)

10.4.1 Adding a QoS Queue

Click Add new Queue or the edit icon in the Queue Setup screen to configure a queue.
Figure 69 Queue Setup: Add
The following table describes the labels in this screen.
Table 46 Queue Setup: Add
LABEL
Active
Name
Interface
Priority
Weight
Buffer
Management
Rate Limit
OK
Cancel

10.5 The Class Setup Screen

Use this screen to add, edit or delete QoS classifiers. A classifier groups traffic into data flows
according to specific criteria such as the source address, destination address, source port number,
destination port number or incoming interface. For example, you can configure a classifier to select
traffic from the same protocol port (such as Telnet) to form a flow.
166
DESCRIPTION
Select to enable or disable this queue.
Enter the descriptive name of this queue.
Select the interface to which this queue is applied.
This field is read-only if you are editing the queue.
Select the priority level (from 1 to 7) of this queue.
The smaller the number, the higher the priority level. Traffic assigned to higher priority
queues gets through faster while traffic in lower priority queues is dropped if the network is
congested.
Select the weight (from 1 to 8) of this queue.
If two queues have the same priority level, the Device divides the bandwidth across the
queues according to their weights. Queues with larger weights get more bandwidth than
queues with smaller weights.
This field displays Drop Tail (DT). Drop Tail (DT) is a simple queue management
algorithm that allows the Device buffer to accept as many packets as it can until it is full.
Once the buffer is full, new packets that arrive are dropped until there is space in the buffer
again (packets are transmitted out of it).
Specify the maximum transmission rate (in Kbps) allowed for traffic on this queue.
Click OK to save your changes.
Click Cancel to exit this screen without saving.
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