Axis Q1755 Bedienungsanleitung PDF herunterladen (Seite 34)

AXIS Q1755 - System Options

Alternative HTTP port - select this option to manually define an external HTTP port. Enter the port number in the field

provided. If no port is entered here a port number is automatically selected when NAT traversal is enabled.

Notes:

• An alternative HTTP port can be used/be active even if NAT traversal is disabled. This is useful if your NAT router does

not su

pport UPnP and you need to manually configure port forwarding in the NAT router.

• If you attempt to manually enter a port that is already in use, another available port is automatically selected.

• When the port is selected automatically it is displayed in this field. To change this enter a new port number and click

Save.

FTP - The FTP server running in the network cameras enables the u

pload of new firmware, and user applications. Check the

box to enable the service.

RTSP - The RTSP protocol allows a connecting client to start an H.264 stream. Check t

he box to enable the server and enter

the RTSP port number to use. The default setting is 554. Note that H.264 video streams will not be available if this service is

not enabled.

SOCKS

SOCKS is a networking proxy protocol. The Axis network camera 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 network camera is located on a local network

behind a firewall, and notifications, uploads, alarms, and such need to be sent to a destination outside the local network (such

as the Internet). See the online help for more information.

QoS (Quality of Service)

Quality of Service (QoS) guarantees 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 bandwidth 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 network cameras mark the following types of traffic:

•video

•audio

•event/alarm

• management network traffic

QoS Settings - For each type of network traffic supported by your Axis net

work 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 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 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

SMTP (email)

Enter the host names (or IP addresses) and port numbers for your primary and secondary mail servers in the fields provided, to

enable the sending of notifications and image email messages from the camera to predefined addresses via SMTP.

If your mail server requires authen

tication, check the box for Use authentication to log in to this server and enter the

necessary information. See the online help for more information.

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