ZyXEL Communications P-660RU-Tx User Manual

Chapter 11 Quality of Service (QoS)

P-660RU-Tx User’s Guide

The following table describes the labels in this screen. 

Table 27   Advanced Setup > QoS

Quality of Service
QoS

Use this field to activate QoS to improve your network performance. 

You can give priority to traffic that the P-660RU-Tx 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. 

Summary

Click this to open a summary table showing the QoS settings. See 

Rule
Rule Index

Select the rule’s index number from the drop-down list box.

Active

Use this field to enable or disable the rule.

Application

Select an application from the drop-down list box. The Destination Port 
Range and Protocol ID fields may change depending on the type of 
applications you choose.

Physical Ports

Select Enet1 to apply the rule to the Ethernet port or select USB to 
apply the rule to the USB port.

Destination 
MAC

Type a destination MAC address here. QoS is then applied to traffic 
containing this destination MAC address. Leave it blank to apply the rule 
to all MAC addresses.

IP

Enter a destination IP address in dotted decimal notation. QoS is then 
applied to traffic containing this destination IP address. A blank 
destination IP address means any destination IP address.

Mask

Enter a destination subnet mask here.

Port Range

Either use the default value set by the application you choose, or enter 
the port number to which the rule should be applied.

Source MAC

Type a source MAC address here. QoS is then applied to traffic containing 
this source MAC address. Leave it blank to apply the rule to all MAC 
addresses.

IP

Enter a source IP address in dotted decimal notation. QoS is then applied 
to traffic containing this source IP address. A blank source IP address 
means any source IP address.

Mask

Enter a source subnet mask here.

Port Range

Enter the port number to which the rule should be applied. 0 means any 
source port number. See 

 for some common 

services and port numbers.

Protocol ID

Select an IP protocol type from the drop-down list box.

Vlan ID Range Enter the source VLAN ID in this field.
IPP/DS Field

Select IPP/TOS to specify an IP precedence range and type of services.

Select DSCP to specify a DiffServ Code Point (DSCP) range.

IP Precedence 
Range

Select a range from 0 to 7 for IP precedence. Zero is the lowest priority 
and seven is the highest.