User's Manual

Table Of Contents
Chapter 9 Quality of Service (QoS) 125
9.6 The QoS Game List Screen
Use this screen to give priority to traffic for specific games. Click Advanced Setup > QoS > Game
List to open the screen as shown next.
Figure 81 Network Setting
> QoS > Game List
The following table describes the labels in this screen.
Table 45 Network
Setting > QoS > Game List
LABEL DESCRIPTION
Enable Game
List
Select this to have QoS give the highest priority to tr
affic for the games you specify. This
priority is higher than the other QoS queues.
Select the games below.
Apply Click this to save your changes.
Cancel Click this to restore your previously saved settings.
9.7 QoS Technical Reference
This section provides some technical background information about the topics covered in this
chapter.
9.7.1 DiffServ
QoS is used to prioritize source-to-destination traffic flows. All packets in the flow are given the
same priority. You can use CoS (class of service) to give different priorities to different packet types.
DiffServ (Differentiated Services) is a class of service (CoS) model that marks packets so that they
r
eceive specific per-hop treatment at DiffServ-compliant network devices along the route based on
the application types and traffic flow. Packets are marked with DiffServ Code Points (DSCPs)
indicating the level of service desired. This allows the intermediary DiffServ-compliant network
devices to handle the packets differently depending on the code points without the need to
negotiate paths or remember state information for every flow. In addition, applications do not have
to request a particular service or give advanced notice of where the traffic is going.