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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:
-
The ability to prioritize traffic and thus allow critical flows to be served before flows with lesser priority.
- 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 traffic’s 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 that
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:
- Live Stream DSCP
- Event/Alarm DSCP
- 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.
- 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 or kbit/s.
- Automatic frame rate - Selected if not influenced by a network-related program or
equipment without a limitation on the network bandwidth.
When the settings are complete, click Save, or click Reset to revert to previously saved settings.