Qos - COMPRO TN900R User Manual

QoS

QoS (Quality of Service) helps prioritize network traffic and reserve necessary bandwidth resource for criti-
cal applications. Here you can customize the packet priority for different types of packet data (video/audio
stream, event/alarm, web page) by specifying a different value for the DSCP (Differentiated Services Code
Point) field in their IP packets. The DSCP value that represents the top priority is 46. The default DSCP value is 0,
which indicates normal priority (meaning not using QoS).
The following is a table of the recommended DSCP values. The drop precedence indicates the order in which
IP packets shall be dropped when the network is congested. Packets of higher drop precedence will be
dropped first. Each class in the table is assigned a certain amount of network bandwidth.
Drop Precedence
High drop precedence (3)
Medium drop precedence (2)
Low drop precedence (1)
Important:
!
For the QoS function to work as it should, all the switches/routers in your
network environment must also support and enable QoS.
Note:
If you want to enable the UPnP™ service on your Windows, please
execute the "Add or Remove Programs" item found in "Control Panel",
and after "Add or Remove Programs" window appears, click on "Add/
Remove Windows Components" and then double-click on "Networking
Services" item and check "UPnP User Interface" box and proceed to in-
stall the component.
Class1
10 18
12 20
14 22
Table 6-1. Recommended DSCP values
Class2 Class3 Class4
26 34
28 36
30 38
Chapter 6: Configuration
Network Settings 6-7