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QoS
Quality of Service (QoS) provides the means to guarantee a certain level of a specified
resource to selected traffic on a network. Quality can be defined as a maintained level of
bandwidth, low latency, and no packet losses.
The main benefits of a QoS-aware network are:
1. The ability to prioritize traffic and thus allow critical flows to be served before flows with
lesser priority.
2. Greater reliability in the network, due to the control of the amount of bandwidth an
application may use, and thus control over bandwidth races between applications.
• DSCP Settings: For each type of network traffic supported by your network video
product, enter a DSCP (Differentiated Services Code Point) value. This value is used to
mark the traffics IP header. When the marked traffic reaches a network router or switch,
the DSCP value in the IP header tells the router or switch which type of treatment to
apply to this type of traffic, for example, how much bandwidth to reserve for it.
NOTE: DSCP values can be entered in decimal or hex form, but saved values are always shown
in decimal.
The following types of traffic are marked; enter a value for each type of traffic used:
o
Live Stream DSCP
o
Event/Alarm DSCP
o
Management DSCP
• Automatic Traffic Control: Check the box to enable automatic traffic control. Set a
limitation on user network resources by designating the maximum bandwidth. Select
either the Maximum bandwidth or Automatic framerate radio button.
o
Maximum bandwidth: When sharing other network programs or equipment, it
is possible to set a limitation on the maximum bandwidth in the unit of Mbit/s.
o
Priority: When the maximum bandwidth is exceeded, the data to be reduced is
prioritized.
Click ‘Save’ to save the settings, or click ‘Reset’ to clear all the changes.
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