The Class Setup Screen - ZyXEL Communications P-793H v3 User Manual

The following table describes the labels in this screen.
Table 67 Advanced > QoS > General
LABEL
Active QoS
WAN Managed
Bandwidth
Traffic priority
will be
automatically
assigned by
Apply
Cancel

17.3 The Class Setup Screen

Use this screen to add, edit or delete 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.
Click Advanced > QoS > Class Setup to open the following screen.
Chapter 17 Quality of Service (QoS)
DESCRIPTION
Select the check box to turn on QoS to improve your network performance.
You can give priority to traffic that the P-79X 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.
Enter the amount of bandwidth for the WAN interface that you want to allocate
using QoS.
The recommendation is to set this speed to match the interface's actual
transmission speed. For example, set the WAN interface speed to 100000 kbps if
your Internet connection has an upstream transmission speed of 100 Mbps.
You can set this number higher than the interface's actual transmission speed. This
will stop lower priority traffic from being sent if higher priority traffic uses all of the
actual bandwidth.
You can also set this number lower than the interface's actual transmission speed.
This will cause the P-79X to not use some of the interface's available bandwidth.
These fields are ignored if traffic matches a class you configured in the Class
Setup screen.
If you select ON and traffic does not match a class configured in the Class Setup
screen, the P-79X assigns priority to unmatched traffic based on the IEEE 802.1p
priority level, IP precedence and/or packet length. See
for more information.
If you select OFF, traffic which does not match a class is mapped to queue two.
Click this to save your changes.
Click this to restore your previously saved settings.
P-79X Series User's Guide
171
Section 17.4.4 on page 177