Axis Communications 243Q Blade Manual Do Utilizador

SOCKS is a networking proxy protocol. The AXIS 243Q Blade 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).

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 e.g. a maintained level 

of bandwidth, low latency, no packet losses, etc. 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 band-

width an application may use, and thus control over bandwidth races between 

applications.

The QoS in Axis network video products marks the data packets for various types of 

network traffic originating from the product. This makes it possible for network routers 

and switches to e.g. reserve a fixed amount of bandwidth for these types of traffic. The 

following types of traffic are marked:

• live video
• event/alarm traffic
• management network traffic.

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 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.

For more information on Quality of Service, please see the Axis support web at 

www.axis.com/techsup

Enter the host names or addresses for your primary and secondary mail servers in the fields 

provided, to enable the sending of event and error email messages from the camera to 

predefined addresses via SMTP.