ZyXEL Communications P-661HNU-Fx User Manual

 Chapter 10 Quality of Service (QoS)

ADSL Series User’s Guide

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.

You can give different priorities to traffic that the ZyXEL Device forwards out through the WAN 
interface. Give high priority to voice and video to make them run more smoothly. Similarly, give low 
priority to many large file downloads so that they do not reduce the quality of other applications. 

Click Network Setting > QoS > Class Setup to open the following screen.

Network Setting > QoS > Class Setup 

The following table describes the labels in this screen.  

Priority

Select the priority level (from 1 to 7) of this queue.

The larger 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.

Weight

Select the weight (from 1 to 15) of this queue. 

If two queues have the same priority level, the ZyXEL Device divides the bandwidth across 
the queues according to their weights. Queues with larger weights get more bandwidth 
than queues with smaller weights.

Rate Limit

Specify the maximum transmission rate (in Kbps) allowed for traffic on this queue.

Apply

Click Apply to save your changes.

Back

Click Back to return to the previous screen without saving.

Queue Setup: Add/Edit

Network Setting > QoS > Class Setup

Add new Classifier

Click this to create a new classifier.

Order 

This field displays the order number of the classifier.

Status

Select the check box to enable the classifier.

Class Name

This is the name of the classifier.

Classification Criteria

This shows criteria specified in this classifier, for example the interface from which 
traffic of this class should come and the source MAC address of traffic that matches 
this classifier.

Forward to

This is the interface through which traffic that matches this classifier is forwarded out.

DSCP Mark

This is the DSCP number added to traffic of this classifier.