Axis Communications AXIS 241SA user manual Socks, QoS Settings, Smtp email

52AXIS 241QA/AXIS 241SA - System options

SOCKS

SOCKS is a networking proxy protocol. The AXIS 241QA/AXIS 241SA can be configured to use a SOCKS server to reach networks on the other side of a firewall/proxy server. This function is useful if the video server is located on a local network behind a firewall, but notifications, uploads, and alarms need to be sent to a destination outside the local network (such as the Internet).

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 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 reserve a fixed amount of bandwidth for these types of traffic. The following types of traffic are marked:

•live video

•live audio

•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 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.

More information on Quality of Service at the Axis support web at www.axis.com/techsup

SMTP (email)

Enter the host names or addresses for your primary and secondary mail servers in the fields provided, to enable event and error email messages from the video server to predefined addresses, via SMTP.