User`s manual

51
AXIS 282/AXIS 282A - System Options
For more information, please see the online help
SOCKS
SOCKS is a networking proxy protocol. The AXIS 282/AXIS 282A can be configured to use
a SOCKS server to reach networks on the other side of a firewall/proxy server. This
functionality is useful if the Video Server is located on a local network behind a firewall,
but notifications, uploads, alarms, etc., need to be sent to a destination outside the local
network (e.g. to the Internet).
QoS (Quality of Service)
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, no packet losses, and so on. The main benefits of a QoS-aware
network can be summarized as:
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.
The QoS in Axis network video products marks th
e data packets for various types of
network traffic originating from the product. This makes it possible for network routers
and switches to reserve a fixed amount of bandwidth for these types of traffic, for example.
The following types of traffic are marked:
live video
live audio
event/alarm traffic
management network traffic
It is important to remember that
to be able to use QoS, your network must be properly
configured. If you are unsure as to whether your network is QoS aware, please check with
your network administrator.
QOS Settings
For each type of network traffic supported by your Axis network video product, enter a
DSCP (Differentiated Services Codepoint) 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 informs the router or switch of the 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 hexadecimal form, but saved values
are always shown in decimal.