Vista VIP2 VK2-540VRD, Руководство пользователя

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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, thanks 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:
-. Live Stream DSCP:
-. Event/Alarm DSCP:
-. Management DSCP: