Chapter 4 Tutorials
VMG/XMG Series User’s Guide
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4.8 Configuring QoS Queue and Class Setup
This section contains tutorials on how you can configure the QoS screen.
Let’s say you are a team leader of a small sales branch office. You want to prioritize email traffic
because your task includes sending urgent updates to clients at least twice every hour. You also upload
data files (such as logs and email archives) to the FTP server throughout the day. Your colleagues use
the Internet for research, as well as chat applications for communicating with other branch offices.
In the following figure, your Internet connection has an upstream transmission bandwidth of 10,000 kbps.
For this example, you want to configure QoS so that email traffic gets the highest priority with at least
5,000 kbps. You can do the following:
• Configure a queue to assign the highest priority queue (1) to email traffic going to the WAN interface,
so that email traffic would not get delayed when there is network congestion.
• Note the IP address (192.168.1.23 for example) and/or MAC address (AA:FF:AA:FF:AA:FF for example)
of your computer and map it to queue 7.
Note: QoS is applied to traffic flowing out of the Zyxel Device.
Traffic that does not match this class is assigned a priority queue based on the internal QoS mapping
table on the Zyxel Device.
QoS Example
1 Click Network Setting > QoS > General and click the QoS button to enable. When the switch goes to the
right ( ), the function is enabled. Set your WAN Managed Upstream Bandwidth to 10,000 kbps (or
leave this blank to have the Zyxel Device automatically determine this figure). Click Apply.
10,000 kbps
DSL
Your computer
IP=192.168.1.23
A colleague’s computer
Other traffic: Automatic classifier
and/or
MAC=AA:FF:AA:FF:AA:FF
Email traffic: Highest priority
DSL
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