User's Guide

Chapter 11 Quality of Service (QoS)
EMG1302-R10A User’s Guide
104
11.1.1 What You Can Do in the QoS Screens
•Use the General screen (Section 11.2 on page 104) to enable QoS on the EMG1302-R10A, and
specify the type of scheduling.
•Use the Rule-based QoS screen (Section 11.3 on page 105) to define and setup QoS-specific
rules.
11.1.2 What You Need to Know About QoS
802.1p
QoS is used to prioritize source-to-destination traffic flows. All packets in the same flow are given
the same priority. 802.1p is a way of managing traffic in a network by grouping similar types of
traffic together and treating each type as a class. You can use 802.1p to give different priorities to
different packet types.
Tagging and Marking
In a QoS class, you can configure whether to add or change the DiffServ Code Point (DSCP) value
and IEEE 802.1p priority level in a matched packet. When the packet passes through a compatible
network, the networking device, such as a backbone switch, can provide specific treatment or
service based on the tag or marker.
Finding Out More
See Section 11.4 on page 107 for advanced technical information on QoS.
11.2 The Quality of Service General Screen
Use this screen to enable or disable QoS and set the upstream bandwidth.
Click Configuration > Network > QoS > General to open the screen as shown next.
Figure 55 Configuration > Network > QoS > General